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US5426468A - Method and apparatus utilizing look-up tables for color graphics in the digital composite video domain - Google PatentsMethod and apparatus utilizing look-up tables for color graphics in the digital composite video domain Download PDF
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- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/74—Circuits for processing colour signals for obtaining special effects
This application is a division of application Ser. No. 07/678,669, filed Apr. 1, 1991.
In a video special effects system it is usually desired as a special effect to modify some or all of the colors in the image. For example, an effect called "solarization" sometimes referred to as "false color", causes the darkest parts of the image to be displayed as a particular color, e.g. blue, and the brightest parts of the image to be displayed as a different color, e.g. orange. Various shades in between would be converted to the color range between blue and orange, in this example; or perhaps a third color would be substituted somewhere in the range.
Another example of an effect which modifies color is "posterization". In this effect, the original image, which may contain thousands of shades, is represented using a very few discrete colors. For example, an image of a face could be displayed using only black, orange, and white. The resulting image would be recognizable, but would have a high-contrast cut-out look.
Other examples of color modification would include negative color effects, brightness and contrast changes, or overall color tints, on either all or selected parts of the image.
In computer graphics systems using CRT monitors accepting the color components red, green and blue (hereafter R, G, and B) these components can be produced individually by reference to three Look-Up Tables (hereafter "LUT"s), either in hardware memory or in software, using the numerical image data from a display memory to access predetermined values in the R, G and B tables. In the case of a hardware-based LUT system, the numerical values from the display memory are used as addresses to a second memory device in which the lookup values have been previously stored. The data output from this second memory device then becomes the new, modified pixel value. The image is processed in a serial fashion generally starting at the top left of the image, performing the lookup function on each pixel successively, until the entire image has been modified. The resulting R, G and B data streams may be stored in another memory device, or connected to three digital to analog converters to produce three varying voltages to be connected to a component (RGB) color video monitor.
In some computer graphics systems, identical data is routed to all three LUTs. For example, consider an 8 bit display memory which is capable of representing 256 unique values. The 8 bit data stream would be routed to all three LUTs. By properly loading values into the tables in advance, the programmer can specify which colors, or mixtures of R, G, and B, each numerical value will produce. In such a system, only 768 bytes of memory are required. Because only 8 bits of pixel data are supplied, there are only 256 bytes in each table.
A straightforward application of the LUT technique to video special effects would involve decoding the composite video signal from a camera or video recorder into R, G, and B components. Three analog to digital converters would then be used to convert the signals into three parallel 8 bit streams of data, or 24 bits total. These 24 bits would then be routed to the address inputs of the lookup memory. The memory array would then produce three new streams of 8 bit R, G, and B data. Three digital to analog converters would convert these streams to three voltages representing the new R, G, and B values. A composite encoder would then return the image to the composite video form. Unfortunately, 24 bits of image data (8 bits each, R, G, and B) requires a LUT memory device of 48 Megabyte capacity. At this time, such a memory system is very expensive.
Digital video systems generally fall into two categories: component and composite. Component systems represent the image as three discreet data streams such as Red, Green, Blue (R, G, B). Composite systems represent the image using a single data stream, usually 8 bits wide, which is formed by passing the NTSC composite video signal through a single analog-to-digital converter without any prior decoding. In the NTSC video signal, color is presented by a 3.58 MHz amplitude and phase modulated subcarrier which is mixed with the luminance, or black and white portion of the image. In a composite digital video system, this subcarrier becomes part of the data stream. Color information in a composite digital system, is represented indirectly by the relationships between successive pixels, rather than explicitly as a proportion of R, G, and B values in the component digital video system.
Since there is only one data stream in the composite digital system, and color information is not directly accessible, applying the LUT concept would be of limited usefulness. A system could be constructed similar to a computer graphics system mentioned above, in which the 8 bit data stream could be connected to individual R, G, and B LUT memories. The outputs of these tables could be routed to respective red, green, and blue digital to analog converters. The resulting component analog video signals could then be fed to an NTSC composite encoder for viewing on a standard TV monitor. This would allow certain false color effects as well as contrast and brightness manipulation. However, the color information present in the original image is lost in the process. All effects would effectively be taking place on the luminance, or monochrome image. This system also requires considerable circuitry to convert and encode the composite video.
In the NTSC color television system, 4 fields are necessary in order to produce the desired color. Fields 1 and 2, each comprised of 262.5 lines, are interlaced, to produce one frame. Fields 3 and 4 are usually, if there is no movement, identical with fields 1 and 2, respectively, with the exception that the color reference subcarrier phase is reversed with respect to fields 1 and 2. It is desired to devise an inexpensive and simple system for creating special color changes and effects in, and utilizing, a four field, or multi-field color system, or other similar system, such as the PAL system.
It would be advantageous to devise a color lookup table system for color for providing color effects which could be used with a composite digital video system and produce a single composite digital data stream. Such a system would require no error-prone color encoders and decoders and only one analog to digital converter and one digital to analog converter, and would be simpler and less expensive.
It is therefore an object of this invention to provide a LUT circuit for producing color effects which will operate within the composite digital video domain, avoiding the necessity of decoding or encoding circuits to convert the signal to a component format to provide a less expensive and simpler method and apparatus for producing color effects on a composite video signal and that allows for versatile application to obtain numerous and interesting color effects. It is further an object to provide such a system that requires less memory and less processing times; it is further desired to have such a system capable of operating within a system, having internally computer generated sync signals.
Other objects and features of the invention and the manner in which the invention achieves its purpose will be appreciated from the following description and the accompanying drawings which exemplify the invention, it being understood that changes may be made in the specific method and apparatus disclosed herein without departing from the essentials of the invention set forth in the appended claims.
The invention relates to a method for utilizing look-up tables to create special color effects without decoding to luminance and chrominance, in a composite video system having a digitized composite video signal to be modified, with said system capable of preserving or generating sync signals, wherein the digitized video signal has discrete values having the sampling frequency Nfs where N is an integer greater than 1, and fs is the color subcarrier frequency of the video input signal, with the method having the steps of storing in memory having addressable storage locations N sets of predetermined values such that the sets are addressable in a desired predetermined order, retrieving from memory the stored values at a rate Nfs and such that each of the N sets of values in memory is addressed in the predetermined order, and such that the digitized composite video signal is used to address the storage locations within each of the N sets to produce a digitized video output signal with different values, as desired. The values stored in the look-up table are created and stored by determining the amplitude values necessary at each of N successive points in equal periods of 1/Nfs on a wave of one cycle of a color subcarrier of frequency fs such that when the values are sampled in the desired predetermined order at a rate Nfs and filtered, a full cycle of the color subcarrier having the phase and amplitude characteristics necessary to produce the desired color to be displayed for each group will result.
FIG. 1 is a block diagram of the invention. In this Figure, as in FIGS. 4 and 5, the buses are shown having a circle around the bus line with the number of wires in the bus indicated directly adjacent the circle.
FIG. 2 reflects the output signal voltage at 25 in FIG. 1 utilizing the look-up table values from Table 2 in Appendix A.
FIG. 3 is the video composite signal voltage at 25 utilizing the look-up table data in Table 3 in Appendix B.
FIG. 4 is another mode of the invention shown taking advantage of and utilizing the four fields of the NTSC video composite signal.
FIG. 5 is a variation of the Least Significant Address MUX circuit shown in FIG. 4 that allows for computer generated sync signals to share the memory with the look-up table.
The preferred method and apparatus is shown in FIG. 1. Incoming analog video at 30 is applied to the burst separator 1 which isolates and amplifies the colorburst portion of the NTSC waveform. Separated burst 2 is then applied to one of the two inputs of phase comparator 3 which is part of the colorburst phase locked loop circuit 4 (hereafter PLL). The phase error output signal from the phase detector 5 is conditioned for proper operation of the PLL by the loop filter 6. The filtered error voltage 7 is routed to the control voltage input of the nominal 14.31818 MHz voltage controlled oscillator 8 (hereafter VCO). This frequency is four times the frequency of the 3.58 MHz color subcarrier and is commonly used in composite digital video systems. In the preferred system, 14.31818 MHz will be the sample rate for the digitized video, and therefore the output 9 of the VCO is routed to the clock inputs of the analog to digital converter 10 and digital to analog converter 11. Consequently the system clock is responsive to the color subcarrier fs (3.58 MHz) of the video input signal. It is also routed to the 2 bit binary phase counter 12. This counter repeatedly counts from zero to three being incremented at a rate of 14.31818 MHz by the VCO. In a binary counter the least significant bit or bit 0 changes state or "toggles" at a rate equal to half the input signal. Similarly, the next least significant bit or bit 1 toggles at half the rate of bit 0. Therefore in the case of the phase counter 12, the least significant bit, P0 toggles at a frequency of 7.15909 MHz, and P1, the most significant bit, toggles at 3.579545 MHz, which is equal to the color subcarrier frequency. P1 is routed to the remaining input on the phase comparator 3 thus "closing the loop" such that the PLL acts to keep P1 in a constant phase relationship with the colorburst of the input video signal. Also, the 2 bit output of the phase counter now directly represents four unique phases of the color reference signal, each ninety degrees apart.
To perform effects, the lookup table values must be determined, one method of which is described hereafter, and the contents must be loaded by the microprocessor system unit 13 (hereafter MPU). The MPU is programmed to generate various look-up tables in a desired format as hereafter described to generate a particular special effect or color change desired. This microprocessor system can be an external computer such as several of the AMIGA brand personal computers currently available. The look-up table values could however be in any prestored format, such as a ROM (read only memory), either in the external computer or in place of the RAM 18.
Address multiplexers 14 and 15 allow the MPU's address signals at 16 and 17 to reach the address inputs of the lookup table memory, RAM 18. The bus 16 and bus 17, 8 bit and 2 bit buses respectively, are indicated in the Figure with the circle and line with the number eight and two respectively. The low address multiplexer 14 is connected to the least significant eight bits of RAM address via bus 32 and the high address multiplexer 15 is connected to the eighth and ninth address lines A8, A9 of the MPU 18 via 33, as the most significant bits. The purpose of muxes (short for multiplexers) 14 and 15 is to switch between the sources of addresses for the RAM. In this example, during the load mode indicated by Load/Run Control 20 when the Address Muxes 14 and 15 are connected to the MPU, the LUT is mapped from the MPU consecutively via the DATA bus 19 to the first 1024 memory locations in the RAM space 18. In FIG. 1, this is the only connection to the RAM's data inputs. Other memory addressing schemes are possible such that the LUT memory can be mapped to other address locations, or even accessed indirectly through a serial or parallel port. All that is necessary is that the MPU be able to write to all locations within the RAM and that the same locations be known and addressable for reading out during display. The load/run control bus 20 is connected to the two address muxes and the read/write (R/W) of the RAM 18, so that the load/run signal from the MPU determines whether the system, i.e., the Address Muxes 14 and 15, are in the load mode, where addresses and data from the MPU are passing to the RAM, or in the run mode, where addresses come from the A/D converter 10 via bus 23, and phase counter 12 via bus 28. This load/run signal then also independently controls the RAM's read/write mode via bus 24 so that the RAM contents are being written while the MPU is generating addresses through the muxes 14 and 15 to the memory via buses 32, 33 and data to the memory via bus 19. Here, the muxes are controlled via a common control line 20 that provides for both muxes 14, 15, to switch simultaneously between their two input ports, given a control signal.
In this manner, the 4 look-up tables shown in memory 18 for visual purposes only as 34, 35, 36, 37, can be addressed in any desired order by the MPU via bus 17, or consecutively via the phase counter 12, bus 28. The RAM is always outputting data, or reading, when the MPU is not in control, i.e., the addresses are generated via buses 32, 33 through the muxes 14 and 15 from the composite digitized signal coming from the A/D converter 10 and from the counter 12 via buses 23 and 28 respectively. Once the tables are properly written to the RAM by the MPU, the load/run line changes from load to run status. Now the low address multiplexer routes eight bits of data from the analog to digital converter 10 to the least significant eight address bits on the RAM 18 and the high address multiplexer routes the two bits from the phase counter 12 to address lines 48 and 49, these being the most significant address bits of the RAM 18. As discussed, the RAM (random access memory) could instead be a ROM with the necessary predetermined look-up tables in known addressable locations in the ROM.
The effect of connecting the two bits from the phase counter 12, P0 and P1 (26 and 27), to the high address line 33 is that one of the various memory banks of 256 locations is accessed during each of the four phases of one cycle of the 3.58 MHz color subcarrier signal. Thus:
during phase 0, the 1st 256 locations are accessed, 34
during phase 1, the 2nd 256 locations are accessed, 35,
during phase 2, the 3rd 256 locations are accessed 39, and,
during phase 3, the 4th 256 locations are accessed, 37.
Thus, the LUT RAM is effectively divided into four 256 byte tables corresponding to 0, 90, 180, and 270 degrees of the color reference signal. Since the period of the 3.579545 MHz color subcarrier is approximately 280 nanoseconds, each table is used for about 70 nanoseconds before going on to the next table. The entire cycle of the four tables is completed in 280 nanoseconds, or at a rate of 3.579545 MHz.
Exactly which one of the 256 table entries is accessed in each table is determined by the eight bits of data from the A/D converter routed to the low eight address lines of the LUT RAM 18. This value represents the instantaneous voltage of the video signal at that particular instant. The darkest parts of the picture, represented by the lower voltage, would produce low 8 bit numbers and the lightest parts of the picture produce higher 8 bit numbers.
The data resulting from the lookup operation appears as eight bits at the LUT RAM's data output port and is connected via bus 21 to a digital to analog converter 11 which converts the stream of numbers at the 14.31818 MHz rate of the system clock via 38, to a linear video signal where it is smoothed by the lowpass filter 22 before leaving the system. Sync signals, in this system, would be maintained and processed throughout the system although more than the 1024K RAM may be needed. Sync signals may also be stripped from the video signal at 30 and reinserted after readout from memory 18, as shown in FIG. 4, or the signals may be created by the MPU and stored in the memory 18, to be read out at the appropriate time as further discussed in relation to FIG. 5. Thus for every four digitized values, which values represent the 0 degree, 90 degree, 180 degree and 270 degree value of the 3.58 MHz color reference signal component of the new filtered analog composite video output signal at 36, a new color is produced.
Tables I and II in Appendix A show examples of values for look up tables used to generate an unaffected image and a negative image, respectively. In Table I the four tables contain identical data. The entry numbers represent the luminance of the signal 30, i.e., the 8 least significant bits 32. Each entry's value is exactly equal to the entry number or the entry's address. In this case, the stream of data leaving the LUT RAM is identical to the input stream. This table, then, has absolutely no effect on the video, and the resulting image is unaffected and identical to the video input.
In Table II, again the four tables each contain identical data, but this time the entry value is inversely related to the entry address. When this table is used, a negative image results. Any colors in the image will be complementary to the original color, because the color subcarrier is inverted along with the image itself.
Table III in Appendix B shows an example of solarization. The effect of this table is that all video levels above 127 become a solid shade of red, and all video levels less than or equal to 127 become cyan or greenish blue. FIG. 2 show the LUT results in the case that the video is consistently dark, or below code 128. Each dot on the graph represents the data from the table at the 0, 90, 180, and 270 degree points. These points are each separated in time by approximately 70 nanoseconds. The solid lines show an idealized version of the analog voltage from the D/A converter receiving this data. The dotted line shows the video waveform after the D/A voltage passes through the lowpass smoothing filter 22. Note that the 70 nanosecond "stairsteps" have been transformed by the filter into a sine wave with a period of 280 nanoseconds, or a frequency of 3.579545 MHz. This sine wave is interpreted by the NTSC receiver as a solid color. The saturation, or strength of the color is represented by the amplitude of this sine wave, the hue is represented by the phase of the sine wave, as referenced to the color burst signal at the beginning of each scan line.
The result then is a color modification responsive to the various amplitude levels, or brightness of the input video signal.
FIG. 3 shows what becomes of video levels above 127, again utilizing Table III. Another sine wave results, but the inverse of the waveform in FIG. 2 occurs. This phase shift of 180 degrees results in the color red, the complement of cyan in the NTSC system.
Usually, the resulting color is a mixture of the color present in the original image and the color generated in the lookup process. In the first example, from Table 1, the only color resulting would be that color that was present in the original image only. In the solarization example, the color resulting from the LUT process is so saturated due to the values chosen that it would obscure most or all of the original color from the input video.
The values in the look-up table and stored in memory are determined by determining the amplitude values at N points equally spaced in time at periods 1/Nfs, of the wave form (determined by the amplitude and phase) corresponding to the desired color that the particular NTSC or PAL system will produce. The wave forms necessary for each color are known and determinable in the NTSC or PAL system from information in commonly available video Engineering Manual for both PAL and NTSC systems. It is necessary that N be an integer greater than 1, although 4 is the preferred value for N. Each group of N points is read into and stored in memory in a manner that allows them to be retrieved as a group in the same predetermined order that they appear on the wave form from which they were determined.
It should be understood that the address buses although shown as 8 bit buses for 8 bit bytes from the D/A converter 10 and elsewhere in FIG. 1, any X bit word and corresponding X bit address bus may be used, where X is an integer so long as it is sufficient to address the number of stored look-up table values, Nb, where b is at least the number of possible digitized values of the composite video input signal. In FIG. 1, the video signal is digitized into 256 discrete values, thus 256N or 1054 memory locations are necessary, requiring 8 bit address words, i.e. 2x =28 =1054.
In a digital composite video system containing a four field image memory, i.e., capable of also storing an image of the digitized video input signal, the LUT can be implemented using the existing four field memory array. FIG. 4 shows such a system. In this system, four fields of video may be stored in the one megabyte memory 76 and then continuously displayed as a frozen image. The fields are shown for visual purposes only as I, II, III and IV. It is also possible for the attached microprocessor unit 66 to modify the image in memory or store computer generated imagery into the four field memory, via address bus 67, read bus 75, and data bus 71. As discussed hereafter, there buses are switched via one or more of the muxes 68, 70, 72, 74 depending on which mode is desired. The computer generated imagery capability is used in the LUT system when the microprocessor 66 stores the lookup table data in the image memory 76. The system is then placed in the LUT mode to readout from memory whereby special color effects can be created using the digitized video input signal as addresses to the RAM 76. In this case the image memory no longer contains a stored image. Instead it contains data specifically created to produce special effects when the system is configured to operate in the LUT mode.
In this system, the composite video input signal 45 in FIG. 4 enters via 46 a colorburst PLL 51 as in 1 and 4 in FIG. 1. This PLL circuit strips the colorburst and uses it to generate a 14.31818 MHz system clock signal 50 which is synchronized to the colorburst portion of the input video signal. The video signal is also fed via 48 to the sync stripper 53 which separates the vertical and horizontal sync pulses (VS and HS, respectively) from the video signal as well as an even/odd field signal 54 which is fed to the field counter 57 via 54.
The colorburst and other sync signals are also fed via 96 and 97 to the sync and burst generator 81 to be combined with the analog video output signal to create the analog composite video output signals at 85.
The 14.31818 MHz master clock is used via 50 to increment the horizontal counter approximately every seventy nanoseconds. This counter is reset by the horizontal sync signal HS via 52 at the start of each horizontal scan line. The horizontal sync signal is also routed to the clock input of the vertical counter 56. The vertical counter is reset by the vertical sync pulse VS at the start of each field. The vertical sync pulse is also routed to the clock input of the two bit field counter 57. The even/odd field signal resets the least significant bit of the field counter 57 every two fields.
The parallel outputs of all these counters form a twenty bit address (50, 62, 64) which is routed to the memory array addresses 87, 88, 89 via the muxes 70, 72, 74. The counters 55, 56, 57 effectively scan through the one megabyte memory 76 fifteen times a second. The least significant addresses of the memory 76 are A0-A9 (87), the next least are A10-A17 (88), the most significant are A18-A19 (89).
The composite video input passes through a low pass antialiasing filter 47 and into the analog to digital converter 49. The converter is clocked at 14.31818 MHz via 50. The output of the A/D converter then is a stream of eight bit word samples at 58, each 8 bit word V0-V7 being seventy nanoseconds in duration. In normal "framegrabbing" operation, this data stream is routed to the image memory data input 77 via the 8 bit bus 58 and data mux 68 (input 2). The mux 68 is controlled by instructions from the MPU 66 via control bus 71.
The data outputs of the memory are attached via 8 bit bus 79 to a digital to analog converter 78 which is also clocked at 14.31818 MHz (system clock). The analog output then is routed to the low pass smoothing filter 80 where it is combined with sync and burst signals via the sync and burst generator 81, to create the video out signal 85. The sync and burst generator acquires the sync and burst signals from the sync stripper 53 and Burst PLL 51, although these signals could be synthesized from the MPU (computer) via software by writing into appropriate RAM (76) memory locations the necessary digitized sync signals then reading the same out of memory at the appropriate time in relation to the video picture portion such that a composite video analog output signal is produced at 85.
As indicated, addresses and data are not directly connected to the memory array 76, but rather pass through multiplexers 68, 70, 72, 74 which allow the microprocessor to select from multiple sources of address and data signals via control bus 71, which bus is connected to all muxes 68, 70, 72, 74 and controls them independently of each other. The Data Multiplexer (Data MUX) 68 can select either A/D data via 58 (input 2 of mux 68) for frame capture, or microprocessor data via 8 bit bus 69 for modifying or synthetically generating image data, including LUT tables (input 1 of mux 68).
The Least Significant Address Multiplexer 70 selects the horizontal counter 55 via 94 to address input port 2 for addressing A0-A9 of the RAM 76, during frame grabbing or continuous display, in order to consecutively count through the bytes stored in memory 76. For microprocessor 66 access to the memory 76 the 10 least significant microprocessor address lines of bus 67 are routed to the memory 76 via 95 through the Least Significant Address MUX 70, input port 3, allowing processor access for modifying or synthetically generating image data, including LUT tables.
Additionally, the eight A/D data lines 58 are routed to the eight most significant address lines (A2-A9) of input port 1 of mux 70. The two least significant bits are connected to the two least significant bits, H0, H1, of the 10 bit output H0-H10 of the horizontal counter 55. This is the key to using the frame memory as a color lookup table. When video data V0-V7 is routed through the multiplexer 70 to the memory address bus 87, the system functions in a manner similar to that in FIG. 1 (with some important differences described later) to create color effects responsive to the amplitude of the video input signal. The vertical counter 56 is connected to addresses A10-A17 of RAM 76 via input port 1 of mux 72 and bus 88 and the field counter is connected to input port 2 of mux 74, during normal LUT mode, to maintain the desired line and field sequence for each frame of the video.
As discussed, in the LUT mode, when input port 1 of mux 70 is selected, A0 and A1 are connected to the two least significant bits (H0-H1) of the horizontal counter 55. This connection, in combination with the action of the field counter 57, assures that proper color phase is maintained. Thus, for a given line number, determined by the source feeding the Most Significant Address mux 72, four unique lookup tables are accessed in each field, due to the two least significant address bits acting similarly to the phase counter in 12 in FIG. 1. Due to the action of the field counter 57, different areas of memory 76 are accessed during each of four fields. These 4 areas are shown in FIG. 4 as I, II, III, IV for illustration only, since the physical location of the addresses for values for each field may vary as desired. Without this field counting, proper color phase would not be achieved due to the fact that the color subcarrier reverses phase on alternate frames. The Field Multiplexer 74 is provided for microprocessor 66 access of the address bus 89 for reading and writing by the microprocessor to the field locations in the RAM 76, through input 1.
Thus, for a given line number (via address lines A10-A17), total memory may be thought of as being divided into sixteen lookup tables (four tables, 0 degrees, 90 degrees, 180 degrees, 270 degrees from each of the four fields). Each table has 256 bytes.
The MPU can control the Most Significant Address Multiplexer 72 to select port 2 to address the next 8 most significant (beyond the 10 least significant address lines that are connected to 95) address lines 91 of the MPU 66 address bus 67, for reading or writing to or from the image memory 76 by the MPU. (The two most significant address lines of bus 67 are connected to input port 1 of mux 74). The vertical counter output is routed via bus 62 to the memory addresses A10-A17 through input 2 of multiplexer 72, which is particularly useful for frame capture or frame display. Alternatively, an eight bit line latch 86 can be selected (input 3 of mux 72) having the effect of forcing the line number of the RAM 66 (address bits A10-A17) to a specific value determined by the microprocessor via Write Data bus 69. In the mode shown, when the line latch is selected, memory address lines A10-A17 no longer indicate the line number in the field, but instead "freeze" the line number; it can then be thought of as a pointer to one of the 256 unique sets of lookup tables corresponding to one of the 256 lines in the field. Within any given line there are 4 tables (0 degrees, 90 degrees, 180 degrees, 270 degrees) each having 256 values; consequently, since there are 4 fields, each of the 256 unique sets of lookup tables has each set comprised of sixteen 256 byte tables. Some or all of these sets may be programmed in advance by the microprocessor. To switch to a new set, the microprocessor sends a new eight bit word to the line latch 86. This allows changing color effects nearly instantly, rather than having to read into memory an entire new LUT.
Many unique effects are possible by stepping through different tables quickly. For example, the microprocessor could increment the line latch after each four field sequence. Since each four field sequence is accomplished in 1/15 of a second, it would take approximately seventeen seconds to complete this effect using each of 256 lines. Each successive field would be processed with a different set of LUT data, creating a visual display that changes the effects continuously throughout the seventeen second period, rather than displaying just one color effect change responsive to one LUT.
It is also possible to select the vertical counter 56 when in the LUT mode. The "tables" for each line can be programmed by the microprocessor to be slightly different throughout the screen. The effect is that each line in the image is processed with its own unique set of tables. This makes possible a number of new effects, such as emulating a commonly used dark sky filter used in conventional film photography. To do this, the microprocessor would program the top line's LUT to lower the brightness of the image, and, perhaps give it a brownish tint. Each successive line below would be programmed to have less and less effect on the image, until at the bottom of the screen, the image would be unmodified.
Of course, due to the manner which arbitrary lookup functions can be created, a nearly infinite number of other effects are possible.
It is possible to construct a four field memory system (or 8 field in the PAL format) in which the horizontal sync, blanking and color burst signals are stored for each line along with the picture information. One manner in which this can be done is by programming these signals from the micro processor (computer). The analog sync values can be obtained from standard video engineering manuals based on the particular system, PAL or NTSC, and the digitized equivalent then determined. These digitized values are then stored in each line of memory 76 at the proper memory locations following the last video pixel information so that following the last pixel information stored for each respective horizontal line, the sync signals, including horizontal, vertical and other sync signals for a given line and frame that are necessary to display the desired video picture, and read out at the proper horizontal clock count. This eliminates the need for a separate sync generator, resulting in a simpler and more economical system. Using the LUT in the previous manner described to store the LUT information in memory would erase the sync, burst and blanking information in memory so that the system would again require a separate sync generator, resulting in additional parts. To allow the invention to be used with a programmed and stored sync system requires modifications to resolve this memory conflict.
To achieve this, the connections to the mux 70 in FIG. 4 are modified as shown in FIG. 5. Only the seven most significant bits V1-V7 from the A/D converter are sent to the Least Significant Address Multiplexer 70. Bit zero, V0, is left unconnected. Consequently, bits one through seven are respectively connected through the multiplexer to address lines two through eight. The ninth address line A9 is forced to zero, i.e. grounded.
With this arrangement, only the first 512 memory locations of each line in the four field memory can be accessed using the LUT mode. Memory use is arranged such that the sync, blanking and burst are stored in the upper half of memory (i.e., in some or all of the other 512 memory locations of the 1024 bit RAM). Therefore, LUT data does not interfere with the storage of sync, blanking and burst information. The drawback is that only seven bits of A/D data are used, resulting in a slightly worse signal to noise ratio for the resulting video signal.
When creating data for the tables, in this mode, the microprocessor (MPU) program generating the tables adjusts the table data to compensate for the fact that samples from the A/D converter are essentially scaled down by a factor of two due to dropping the least significant bit and shifting the remaining bits toward the least significant bit.
The Least Significant Address Multiplexer 70 is switched to select the A/D converter data via bus 58 only during the time that the picture is being displayed. During the sync, blanking and burst times, the horizontal counter output H0-H9 is routed via bus 94 to the memory 76 via the mux 70 in order to scan the sync, blanking and burst data. The sync data when read out of memory 76 via bus 79, is then converted to analog form with the video picture information and filtered to create the composite video signal 85.
It should be understood that color changes as used herein also refer to variations in luninance i.e., grey levels.
While there have been shown and described particular embodiments of the invention, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention or its equivalent and, therefore, it is intended by the appended claims to cover all such changes and modifications as fall within the true spirit and scope of the invention.
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|US07678669 US5402181A (en)
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|US07678669 Expired - Fee Related US5402181A (en)
|Method and apparatus utilizing look-up tables for color graphics in the digital composite video domain
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|US5402181A (en)
Cited By (9)
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|Canon Kabushiki Kaisha
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|Nec-Mitsubishi Electric Visual Systems Corporation
|Image signal processing apparatus and method
|US20030198291A1 (en) *
|Gold Kevin C.
|Frame compression using radix approximation
|FR2851395A1 (en) *
|Eastman Kodak Co
|Cinematographic sequence viewing condition simulation method for e.g. digital cinematographic camera, involves effecting modification of viewing parameter based on comparison of shooting signal and regulating signal
|US20060209079A1 (en) *
|Eric Jeffrey
|Graphics controller providing for efficient pixel value transformation
|US20100166326A1 (en) *
|Samsung Electronics Co., Ltd.
|Method and apparatus for encoding/decoding image in bitmap format
|US20100309685A1 (en) *
|Mccollum Timothy A
|Light emitting panel assemblies
|US8072539B1 (en)
|Cooper J Carl
|Apparatus and method for digital processing of analog television signals
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|Intel Corporation
|Process, apparatus, and system for color conversion of image signals
|JP2000115558A (en) *
|Mitsubishi Electric Corp
|Color characteristic description device, color management device, image converter and color correction method
|US7446774B1 (en)
|Broadcom Corporation
|Video and graphics system with an integrated system bridge controller
|US6636222B1 (en) *
|Broadcom Corporation
|Video and graphics system with an MPEG video decoder for concurrent multi-row decoding
|US6853385B1 (en) *
|Broadcom Corporation
|Video, audio and graphics decode, composite and display system
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|Broadcom Corporation
|Video and graphics system with MPEG specific data transfer commands
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|Broadcom Corporation
|Low resolution graphics mode support using window descriptors
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|Graphics layer reduction for video composition
Citations (4)
|Publication number
|Priority date
|Publication date
|US4325075A (en) *
|Nippon Electric Co., Ltd.
|Digital television video signal storage system
|US4445135A (en) *
|Robert Bosch Gmbh
|Synchronizing system for television signals
|US4688081A (en) *
|Hitachi, Ltd.
|Apparatus for correcting time base error of video signal
|US4729013A (en) *
|Sony Corporation
|Time base error corrector
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|Priority date
|Publication date
|US4763186A (en) *
|Corporate Communications Consultants, Inc.
|Color correction system with monitor for use in recalling color corrections and corresponding method
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|Sanyo Electric Co Ltd
|Video signal processing method
|US4799053A (en) *
|Texas Instruments Incorporated
|Color palette having multiplexed color look up table loading
|US5042078A (en) *
|Fuji Photo Film Co., Ltd.
|Method of effecting gradation and color correction of a composite image
|JPH01280969A (en) *
|Brother Ind Ltd
|Picture processor
|JPH0290793A (en) *
|Mitsubishi Electric Corp
|Video signal processor
Patent Citations (4)
|Publication number
|Priority date
|Publication date
|US4325075A (en) *
|Nippon Electric Co., Ltd.
|Digital television video signal storage system
|US4445135A (en) *
|Robert Bosch Gmbh
|Synchronizing system for television signals
|US4688081A (en) *
|Hitachi, Ltd.
|Apparatus for correcting time base error of video signal
|US4729013A (en) *
|Sony Corporation
|Time base error corrector
Cited By (13)
|Publication number
|Priority date
|Publication date
|US8072539B1 (en)
|Cooper J Carl
|Apparatus and method for digital processing of analog television signals
|USRE38890E1 (en) *
|Samsung Electronics Co., Ltd.
|Device for converting data using look-up tables
|US5696941A (en) *
|Samsung Electronics Co., Ltd.
|Device for converting data using look-up tables
|US5945983A (en) *
|Canon Kabushiki Kaisha
|Display control apparatus using PLL
|US20030132902A1 (en) *
|Nec-Mitsubishi Electric Visual Systems Corporation
|Image signal processing apparatus and method
|US7298916B2 (en) *
|Nec-Mitsubishi Electric Visual Systems Corporation
|Image signal processing apparatus and method
|US20030198291A1 (en) *
|Gold Kevin C.
|Frame compression using radix approximation
|US6937652B2 (en) *
|Seiko Epson Corporation
|Frame compression using radix approximation
|FR2851395A1 (en) *
|Eastman Kodak Co
|Cinematographic sequence viewing condition simulation method for e.g. digital cinematographic camera, involves effecting modification of viewing parameter based on comparison of shooting signal and regulating signal
|US20100309685A1 (en) *
|Mccollum Timothy A
|Light emitting panel assemblies
|US20060209079A1 (en) *
|Eric Jeffrey
|Graphics controller providing for efficient pixel value transformation
|US20100166326A1 (en) *
|Samsung Electronics Co., Ltd.
|Method and apparatus for encoding/decoding image in bitmap format
|US8824810B2 (en)
|Samsung Electronics Co., Ltd.
|Method and apparatus for encoding/decoding image in bitmap format using reduced number of bitmap indices
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subset: commoncrawl


text:
It is already reported that Dhanush is all set is work for VIP2 which is a sequel to the blockbuster movie VIP. This movie is tentatively titled as Raguvaran is Back in Telugu.
Meanwhile, the formal launch of this movie happened today in Chennai to which superstar Rajini attended along with his wife Latha Rajinikanth and clapped for the first shot.
Being directed by Soundarya Rajnikanth this movie will be jointly produced by Dhanu and Kalaipuli S. Thanu
- Poll : Who among these should direct NTR biopic?
- Villain finalized for Rajini's next
- Mahanati's audio launch gets a date
- Rajamouli, Shobu land in Japan for Baahubali 2's special screening
- Awe director's next with senior hero?
Articles that might interest you
Ad : Teluguruchi - Learn.. Cook.. Enjoy the food


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It's TIME to start looking at life differently and stepping INTO who you were designed to be!
I've been writing my book since 430 am. 8934 words done. Crazy fun encounters with God as I go! 🙌🏼 This labor of love is so so so worth it. Find what you were made for and run with it!!!!!
This is a word for some of you today.
"Say out loud the kind of things you want to see in your day. Neuroplasticity teaches us that the brain listens to our words. Say what you want. Stop focusing on all of the things you don't want, are afraid of, hope doesn't happen and fear might occur! Speak aloud what you want to see. Declare it to be so and then believe it with everything you have. Effort is your personal responsibility. Heaven will take care of the miracles."
- Sandi Krakowski
You've heard my story of healing and ridding my body and muscles of trauma. Would you like me to do an online class on this topic to help you with pain, struggle, inflammation, fogginess and more? So many people are asking for this! Let me know!
When we step into our power and who we really are, completely comfortable in our own skin without defenses, excuses or disclaimers..... the wrong people will begin to exit our lives. They will oftentimes blame our change, accuse our freedom and judge our discipline. That's ok. Hold steady! The right people are on their way! The ones who will applaud our change, celebrate our freedom and who are living their own disciplined life already! MAKE ROOM! The right people remind you of who you really are. 🙌🏼
I want to cheer you on no matter where you are in your journey! Let's do this!!! 🙌🏼💪🏼🙏🏼
Thank you Jesus for strong shoulders! Thank you for a back that didn't collapse under the persecution! Thank you for arms that carried my sword and fought me through. 💪🏼🙌🏼
You are gonna make it. God won't turn His back on you, ever. Angels are surrounding you right now and even though you can't see it, TRUST.
God is going before you to unlock doors that have been closed for many years! The enemy is trying to get you to give up and let go. God says COME BACK- turn the handle! The doors are opened to you and it'll be bigger than you ever imagined! Don't give into despair or doubt- rise up! #NewBeginnings #OpenDoors
🙌🏼🙌🏼 As far as the east is from the west, so far has he removed our transgressions from us. Psalm 103:12
Unicorn hair from Emily Anderson Styling 🙌🏼🙌🏼🙌🏼
It's HAIR DAY with @emilyandersonstyling today!!!! What shall I do?! Hmmmmmm..... update, go asymmetrical, go all over pink?? Decisions decisions! 🙌🏼🙌🏼💃🏼
This one thing I know- God is in the habit of using the most unlikely of persons for His greatest works. Part of the process He will take us through is to show us our truth. Who we were made to be AND who we are being, now. Don't be afraid. Do NOT take on shame when you fall on your face yet again. Don't give up when you fail miserably. In YOUR weakness He is strong. This is not where we try harder or push further. No!!! This is the war zone of surrender. When we make a choic...e to forgive ourselves, get healing for our wounds, be vulnerable with others and rise up BECAUSE He is God! Not because we did it but because HE did a marvelous work through us. The truth sets us free! Even our frail, fractured, falling yet again truth will set us free IF we allow this to become an opportunity, not an obstacle! A place where we change, we heal, we get stronger, we get wiser and we make hell fear us because we know who our God is and how utterly dependent we are on Him!!! Don't give up. Let Him heal you! No shame. Let Him do the work and then..... rise up and give the same grace to others who need it! 🙌🏼🙌🏼See More


text: Co-founder Alex Nicol thought that this special version had to represent some great Scottish produce. Their master distiller and a team of 4 at Heriot-Watt's MSc in Brewing and Distilling graduates, examined the Scottish coast in search of the perfect indigenous ingredients for a typical Scottish coastal flavor. After extensive experiments, they found this in a combination of seaweed, ground ivy and grasses, which has a slightly sweet, but still give refreshing mineral-like taste to the gin.


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Theartevangelist.com - Play Arts Kai Arkham Knight. Associated to Play Arts Kai Arkham Knight, Contemporary art paintings address broadly the several years of article Planet War II around the current working day. The forms of painting in up to date movements differ broadly from one to another. This informative article handles the main movements of up to date artwork, and attempts to elucidate how they website link with one another.
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Some of these earliest famous art (pre-historic cave and rock art) comprises wild life. But, it may be more properly regarded as art about food, instead of art about wildlife because such. Subsequently for a lot of the rest of the history of art within the western environment, art depicting wildlife has been mostly absent, thanks to the simple fact art in that time has been mostly dominated by narrow viewpoints on reality, such as religions. More recently, wildlife art has become a popular and important art subject.See Also: Metal Sayings Wall Art
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Transformation From Breadboard To Printed Circuit Board For Beginners
Hello Electronics Lovers, Do you love electronics?. If your answer is yes let's dive into our topic. Most of the electronic ideas start from the basic Breadboard implementation. But when it comes to a product or design we mostly fail in implementation part.…Read More »


text:
Why not learn more about Moving?
Ways That You Need to Consider to Ensure That You Have the Right Movers in Pennsylvania.
You need to know that whenever you own a home, you will feel a great as it is an investment that many people have always wanted to achieve in life. There are times that you may be required to move from one place to another especially whenever you have decided to shift from one home to another.
There are difficulties that are usually associated when you try to move from one place to another especially if you have lots of luggage and furniture. When you make use of the services of the moving experts, there are so many benefits that you will enjoy. Important things that need to consider when you are looking for the right services of a moving company.
The professionals are trained on the best ways to do the packing. Be sure to get the right details when it comes to the well-being of the experts as you need to be very careful. This is the reason you need to ensure that you take caution to ascertain that everything goes well when placing them in the truck. Thus, they know the shortest route that they need to follow.
In the years these experts have been moving items for their customer, they must have earned enough experience. That is why you would not need to ask about the safety of your goods since they are going to be the best. In fact, there is no reputable company which would not insure your goods. These individuals have had seen a lot when they are moving goods, and that is why they have back up in case of anything.
With these firms, you would be assured that all the expenses and loses are going to be decreasing and catered for. If you choose to undertake the shifting task by yourself, you do not have the right needed equipment. This is not the right time to ask your friends track since that would not be enough. Again, placing a couch on the truck is not an easy thing to do using bare hands.
You are not going to be expecting additional expenses as long as you hire the right company. The best company that provides the best services needs to provide you with a direct estimate and not to take you rounds. Before the prior shifting day, you will discuss with the experts about the costs of the services. With the best equipped to use during the procedure together with direct estimates, they also have the best customer care services. Also, they are always humble and friendly to their customers.
Learning The "Secrets" of Resources


text: after reading Thoreau "civil disobedience" which says government which governs least. i personally agree with this. i believe people should be able to make their own decisions especially on private property. if you are on your land do whatever you want, that's how i feel. government really doesn't effect people on the personal level very often, yeah you gotta pay taxes and stuff but at least you can sit down at the end of the day and do nothing without worrying about government people smashing through your door. personally i would prefer no government but i also dont care. to me its easiest to just give the government what they want to keep them off my back. as long you give them money they'll leave you alone. even if your a murderer you can get away with it as long as you have deep pockets, AL Capone did it for years, until he got caught not paying taxes. so as long as you give them money they wont really bother you. i honestly don't have much of a problem with our government at all. its actually pretty nice, you just pay your taxes and we have free schools and maintained roads and usually you are mostly safe. civil disobedience is certainly still effective most commonly seen today would be in the debate about gun laws. using "civil disobedience" citizens protest for either stricter gun laws or for them to stay the same, and many citizens want to outlaw AR-15 assault rifles. so far no gun laws have changed since the debate so this example has not been successful but there are plenty of instances where civil disobedience worked and made real changes in the world. civil disobedience will always be around, all it is is an argument. the only thing that decides who will win the argument always will depend on who is arguing and what they are arguing for. so as long as there are people here there will be civil disobedience.


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St. Francis
Catholic Church and School
15651 SW Oregon Street, Sherwood, OR 97140
Church Phone: 503-625-6185
School Phone: 503-625-0497
St.Francis School
About St. Francis
News & Announcements
Online Giving
Out of Parish Activities
Parish Registration
Prayer Chain
Peace Village
First Reconciliation
First Communion
Holy Orders & Religious Vocations
Anointing of the Sick
Eucharistic Adoration
Liturgical Ministers
Music Ministry
Faith Formation
Children's Liturgy
Preschool/ Kindergarten
Elementary - Grades 1-5
Middle - Grades 6-8
High - Grades 9-12
Adult Education Classes
Senior Study Group
Rite of Christian Initiation of Adults
Quest Group
Parish Ministries
St.Francis School
Social Action Ministries
Pastoral Care Ministry
Parish Life
Prison Ministry
Respect Life Ministry
Stephen Ministry Care
Strong Catholic Families
Women's Ministry
Returning Catholics
About St. Francis
Pastoral Council
Finance Council
School Advisory Committee
Staff Directory
Pastor's Corner
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National Catholic Register
Social Yet Private Is It Time to MeWe, Beautiful Documentary on Helping the Elderly, and More Links!
By Tito Edwards | Social Yet Private, Is It Time To "MeWe"? - Birgit Jones, Catholic Life in Our Times+++ L'Arche Founder Jean Vanier Shows a Path to Love in Summer in the...
SDG Reviews 'The Devil and Father Amorth'
By Steven D. Greydanus | "He who sups with the devil," a wise medieval proverb has it, "needs a long spoon." William Friedkin, forever known as the director of The Exorcist, may or may not appreciate.
EWTN CEO and Register Publisher: Catholic Media Are Called to Be Truth-Tellers
By Elise Harris/CNA/EWTN News | VATICAN CITY — Catholic communicators gathered in Rome this week to discuss the need for more respectful dialogue in the public sphere, saying that fake news and...
Pope: Without the Eucharist, Every Effort of the Church Is Vain
By Elise Harris/CNA/EWTN News | VATICAN CITY — During a brief day trip to two small Italian cities, Pope Francis stressed the centrality of the Eucharist in the life and actions of the Church,...
Happening this Week:
If you picked up a
Catholic Relief Service Rice Bowl
during Lent, please drop it in the baskets in the narthex by this Sunday, April 22.
Knights of Columbus
will be hosting the monthly
Rosary this Thursday, April 26 at 7:00 pm
in the chapel. All are welcome to honor our Blessed Mother by praying the Rosary with us.
Parish Announcements:
Mark your calendars for our
"In Wisdom, Age and Grace"
series, presented by parishioner and gerontology educator Mike Faber. Please see the Care Ministry section of the bulletin for more information.
Next weekend, April 28 & 29 is the collection for the
Catholic Home Missions
. This appeal supports dioceses in the United States and its territories that lack the resources to provide basic pastoral ministry to their populations. If you would like to support this worthy cause you can pick up an envelope in the narthex or church entrances and place it in the collection basket next weekend.
Itel—Knights of Columbus—Contreras Scholarships
—These scholarships are again available to any high school graduating senior who is a parishioner of St Francis. You must have applied to and been accepted by a College or University for the 2016-2017 school year. Applications (one application for all) are available in the Parish Office, or in the church narthex. The deadline for submitting your application is Thursday, May 10. The primary criteria for selection are church and school involvement together with financial need.
Liturgical Ministers and Coffee Social Ministers
are asked to contact the parish office
before Wednesday, May 2
with your non-availability dates for the next period, June 2 through August 26. This includes the Solemnity of the Assumption of the Blessed Virgin Mary, a Holy Day of Obligation on Wednesday, August 15.
On Wednesday, May 23, the
Sacrament of Confirmation will be celebrated for adults
who for whatever reason have not had the opportunity to receive it. The final day for registration is Tuesday, May 1. For further information and preparation, call Linda at the parish office, 503-625-6185.
Please join our parish in supporting
Mother & Child (M&C) Education Center
with our Baby Bottle Campaign! Here's how it works:
• take bottles home next weekend;
• put loose change, bills or checks in the bottles during the campaign;
• return your bottles to St. Francis the weekend of May 19 or whenever you fill them.
M&C has been operating continuously since 1971 and the money collected helps them offer hope, support, education and guidance (at no charge) to women who are pregnant and parenting to foster a community of competent, confident mothers. Services are available Monday-Saturday and after-hours through a parenting support line. Call 503-249-5801 for any questions.
Out of Parish:
The 83rd Annual Archbishop's Seminary Tea is
Wednesday, April 25 from 3:00 pm to 6:00 pm at the Portland Golf Club. T
he Mission is to provide spiritual and financial support through educational opportunities to seminarians who will serve in the Archdiocese of Portland in Oregon.
Admission is $38.
All are welcome!
Rachel's Vineyard Retreats
are for those seeking to deal with their abortion experiences.
"What is most meaningful to me is being free of what was a secret that prevented me from deeply connecting with others, especially my living children."
April 27-29 near Medford, October 23-25 near Eugene, In Spanish November 9-11. Contact Project Aurora at
or 541-942-2861. For more information visit
. Financial assistance is available!
Sacred Heart – St Louis Parish, 485 7
St, Gervais, is hosting their
semi-annual BBQ Chicken Dinner
on Sunday, May 6 from 11:00 am to 3:00 pm. Dinner includes ½ BBQ chicken, baked potato, green beans, coleslaw, dinner roll, homemade pie or cake and a beverage. The cost is $11 for adults and $7 for children 12 and under.
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Jordan Robbins
HFF Secures Financing for Hudson's Bay Centre in Denver and Bella Springs in Colorado Springs
HFF recently announced that it has secured $21.5 million in financing for the Hudson's Bay Centre. Working on behalf of the borrower, a 50/50 partnership between MDC Realty Advisors USA Inc. and Artis REIT, HFF placed the seven-year, 3.76 percent, fixed-rate loan with Principal Real Estate Investors. The loan proceed were used to acquire the Class A, 172,912-square-foot office building.Denver 23 April 2014 18:47
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Storage between the sinks and NOTHING on the counter…… @ Home Improvement Ideas - DIY Home Decor
Extra kitchen storage/next to counter instead of storage cart.
With glass pain doors {DIY} Rental-Friendly Kitchen Makeover! {How-To Wallpaper the Inside of Your Cabinets!
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Keep food magazines handy by installing a holder on side cabinets or an island. This area is too low to store items you use regularly, but is great for items that might otherwise get lost in the shuffle.


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This specific ISBN edition is currently not available.View all copies of this ISBN edition:
Book Description John Wiley & Sons Inc, 1975. Condition: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In poor condition, suitable as a reading copy. No dust jacket. Seller Inventory # 5917641
Book Description John Wiley & Sons, Inc., New York, NY, U.S.A., 1975. Hard Cover. Condition: Good. No Jacket. 1st Edition. Has or May Have all standard Library markings, pocket, labels, stamps, wear and soil to covers. CLEAN TEXT! Thank you for your purchase from Sunset Books! Help Promote World Literacy, GIVE a Book as a GIFT!! In stock, Ships from Ohio. WE COMBINE SHIPPING ON MULTIPLE PURCHASES!!!! SEE PICTURES!!!!! ANY ODD/GREEN TONES ON THE SCANS ARE CAUSED BY MY SCANNER!! All of our Ex-Library volumes were obtained legally through Public or Auction sales. The Copyright date is 1975 for this Printing. Size: 8vo. Ex-Library. Seller Inventory # 014345
Book Description John Wiley & Sons Inc, 1975. Condition: Good. This book has hardback covers. Ex-library, With usual stamps and markings, In good all round condition. No dust jacket. Seller Inventory # 4058378
Book Description John Wiley & Sons Inc, 1975. Hardcover. Condition: Good. 1st Edition. Ships with Tracking Number! INTERNATIONAL WORLDWIDE Shipping available. May not contain Access Codes or Supplements. May be ex-library. Shipping & Handling by region. Buy with confidence, excellent customer service!. Seller Inventory # 0471453307
Book Description John Wiley & Sons Inc, 1975. Hardcover. Condition: As New. As New. book. Seller Inventory # F5S6-6-Z-0471453307-5


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It's a great time to be a Potterhead! We've got the next installment of illustrated Potter books with Harry Potter and the Prisoner of Azkaban, the fully illustrated Fantastic Beasts and Where to Find Them (which is a thing of beauty!!
Facts, reference, and record books are some of our most popular in the kid's section. Many of them have similar text with graphics rotated out from year to year, but every once in a while I find a new one that I get excited about. This year that book is 13 1/2 Incredible Things You Need to Know about Everything! On each page spread you get thirteen facts on one topic and then the extra half fact that dispels or clarifies a common misconception.
I can only describe reading Julie's novels as a comforting heartache. Her new novel, Perennials, is about the bonds of family, the bonds of love and those of pain. Perennials are flowers that return; they are flowers that continue to grow and bloom in cycles. In the Sutherlands, Julie has created a family that represents all of us.


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ISO 13586:2000, Plastics - Determination of fracture toughness (GIC and KIC) - Linear elastic fracture mechanics (LEFM) approach
Evaluation of the Refueling Water Storage Tank Bottom Plate Crack Technical Report No. 00115-TR-001 Revision 0 Volume 1 of 1 Prepared for: South Texas Project Nuclear.ASTM E399 Linear-Elastic Plane-Strain Fracture Toughness (KIC).Fracture Toughness Test Equipment for Plastics. and ISO 13586 for linear-elastic fracture toughness. of Plastics by the Linear Elastic Fracture Mechanics Approach.The aim of this work was to develop an instrumented experimental methodology of quantitative material evaluation based on the acoustic emission (AE) monitoring of a.Method for Determination of Fracture Toughness of at Rates of Increase in Stress Intensity Factor Greater Than 3.0.It takes into account the fact that in brittle or quasi-brittle materials.Plastics - Determination of fracture toughness (G IC and K IC) - Linear elastic fracture mechanics (LEFM) approach.ASTM committee F42 is reviewing potential modifications to the orientation designation scheme for fracture toughness and fatigue crack growth, as shown in Figure 4.
Experimental Study on the Characteristic Loading of Instrumented Impact Jian Fang, Chengzhong Wang, Technical Center, Baoshan Iron and Steel Co., Ltd.Fracture Mechanics Fracture Mechanics 2nd Edition M. Janssen, J.Evaluation and analysis of interlaminar fracture toughness of bead. the application of linear elastic fracture mechanics,.ISO 13586:2000 Plastics - Determination of fracture toughness (GIC and KIC) - Linear elastic fracture mechanics (LEFM) approach.The experienced staff specializing in fracture mechanics at Laboratory Testing Inc. performs.This entry was posted on Thursday, July 30th, 2009 at 8:21 am and is filed under BSI.Compact Tension Testing of Asphalt Binders at Low Temperatures.LABORATORY 2. 1: TENSILE TEST OBJECTIVES G ROUP ONE D AVID B ROWNE 851594 The objective of this experiment is to investigate the behavior of two material specimens.
ISO 13586:2000 Plastics -- Determination of fracture toughness (GIC and KIC) -- Linear elastic.The mechanical properties of a metal or polymer determine the range of usefulness and the service that can be.Plastics -- Determination of fracture toughness (GIC and KIC) -- Linear elastic fracture mechanics (LEFM) approach.ISO 13586 specifies the principles for determining the fracture.Linear elastic fracture mechanics (LEFM) approach. standard by British Standard.Plastics -- Determination of fracture toughness (GIC and KIC). by a linear elastic fracture mechanics (LEMF) approach,.IUTAM Symposium on Scaling Laws in Ice Mechanics and Ice Dynamics Proceedings of the IUTAM Symposium held in Fairbanks, Alaska, U.S.A., 13-16 June 2000.A Linear Elastic Fracture Mechanics (LEFM). 1st ed. ISO Reference Number 13586: 2000. ISO,.ISO 13586:2000. Plastics. Determination of fracture toughness (Gic and Kic).
On the Application of Fracture Mechanics in the ASME. a linear elastic. measurement of KIc in graphites.Linear Elastic Fracture Mechanics (LEFM) Approach. 10. W. Grellmann,.Matrix effect on the static and dynamic interlaminar fracture toughness.Following the assumptions for linear elastic fracture mechanics(LEFM).
Plastics—Determination of fracture toughness. mechanics (LEFM) approach (ISO 13586:2000).ISO 13586-2000 2000 Plastics-determination of fracture toughness (GIC and KIC)-Linear elastic fracture mechanics.The bars represent the median values, end of boxes the 25th (lower) and 75th (upper) percentile.Fracture Toughness of Polypropylene-Based Particulate Composites. Linear Elastic Fracture Mechanics (LEFM).Mechanical failure modes most commonly observed in engineering practice are typically one of force induced elastic deformation, yielding, fatigue, fracture, corrosion.ISO 13586 Fracture Toughness of Plastics by the Linear Elastic Fracture Mechanics Approach.
A probabilistic methodology has been developed for fracture-mechanics analysis of nonlinear cracked structures.Vasconcelos, G., Lourenço, P., and Costa, M. (2008). "Mode I Fracture Surface of Granite: Measurements and Correlations with Mechanical Properties.".Classical Fracture Mechanics Methods. 11.02.3.2 Linear-Elastic Fracture Toughness 20. the start of the fracture mechanics approach.Impact and Flexural Strength, and Fracture Morphology of Acrylic Resins With Impact Modifiers.
The Breakdown of Linear Elastic Fracture Mechanics near. we compare linear elastic fracture mechanics (LEFM). and ISO had published their fracture mechanics.Determination of fracture toughness (GIC and KIC) - Linear elastic fracture mechanics (LEFM) approach. Plastics - Determination of linear dimensions of test.ISO 13586-2000 Plastics - Determination of fracture toughness (G.Even though there is a progress in interlaminar fracture testing, uncertainty remains on determination of the onset of delamination growth from the starter crack.ISO Standard 14704 (2000). — Determination of Fracture Toughness of Monolithic Ceramics at Room.
The present work investigates the effect on the morphology, fracture performances, and tensile properties of an epoxy polymer when modified with various percentages.Linear elastic fracture mechanics (LEFM). fracture toughness of G550 sheet steels is measured in lab. KIC, and the fracture is not propagating,.Determination of fracture toughness (GIC and. fracture mechanics (LEFM) approach. 201. MS.Abstract: ASTM and ISO had published their fracture mechanics test standards on specimens with low constraint.Conclusions and Recommendations Improvements can always be made.
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A video has gone viral showing Wu Yongning falling from 62 feet storey, Wu Yongning is one of the most popular user with thousands of followers on Chinese site Weibo. He records short videos and photos of him climbing tall buildings without any safety equipment.
According to the viral video gone on the internet, it can be seen that Wu Yonging struggling to climb back 10 seconds after he started the stunt and eventually he gives up and falls from a tall building.
His fans were concerned after he stopped posting videos on the microblogging site weibo, Wu Yonging girlfriend confirmed that he had fallen from the rooftop and was declared dead in a social media post.
According to the family, Wu Yonging was participating in rooftopping challenge with prize money of ~15,000$ (100,000 Yuan).
"He was going to propose his girlfriend the next day and wanted to marry her, he needed the money for his marriage and his ailing mother" Wu's uncle said.
Rooftopping is a dangerous and popular sport, which can be seen on Image sharing sites such as Instagram.
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Hotel is quite dirty... at the time of booking it will show they will provide you Ac room but after booking it will show non ac room... again at the time of checkin they will take more amount in cash... room is smelling very badly.......More
"All the rooms are pretty gross so maybe ask for the cleanest one?"
"Dont go for room 205 unless they have fixed the rat problem in there."
"Dont choose this hotel.., your holidays will be ruined off!"
"Take the rooms in the Top Floor, @least you will get some sunlight."


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Real Estate Auction - Rochester, PA
Hostetter Auctioneers
Residential Real Estate
In cooperation with Golf Property Analysts - Eastern
Legendary Run Golf Course
915 E Legendary Run
Cincinnati, OH 45245
Online Only Auction
In cooperation with Golf Property Analysts
Hostetter Auctioneers
903 Constitution Blvd.
Beaver Falls, PA 15010
Legendary Run Golf Course Sale - Cincinnati, OH
915 E Legendary Run, Cincinnati, OH 45245
Golf Property Analysts, in cooperation with Hostetter Realty & Auctioneers is pleased to have been appointed as the executive agent to extend to qualified prinicpals the opportunity to acquire Legendary Run Golf Course. This 195± acre facility consists of:
For questions regarding this sale, please contact Sherman Hostetter at [email protected] or 724-601-2333.


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For: Dayo Adetiloye Business Hub
Dayo Adetiloye (B.Agric, MBA)-
Helping men to discover, develop and fulfil their business potential.
…Raising 100 Young Millionaire Entrepreneurs in Five Years… since July 2012
08105636015, 08076359735
Dayo Adetiloye
08105636015, 08076359735
Serial Entrepreneur - International Business Planning Consultant - Speaker - Trainer - Author - Blogger - Network Marketing professional
- Fellow, Inspire Africa Train-the-Trainer sponsored by US Consulate Lagos
- Fellow, Tony Elumelu Foundation Entrepreneurship Programme
- Top 50 Innovative Entrepreneurs, BET5 by Diamond Bank
He is an alumnus of Enterprise Development Centre (EDC) of the Lagos Business School (LBS), Pan-Atlantic University (PAU). Through his training, mentoring, speaking and coaching programmes, he has empowered many young people over the years to start and grow their own business, build wealth, create multiple streams of income and achieve financial independence.
Latest posts by Dayo Adetiloye (see all)
- GROUNDNUT FARMING AND PROCESSING BUSINESS PLAN IN NIGERIA - April 17, 2018
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