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Region-based Spiht Coding and Multiresolution Decoding of Image Sequences

This paper presents a region-based encoding/decoding for image sequences using Spatio-Temporal Tree Preserving 3-D SPIHT (STTP-SPIHT) algorithm, which is based on the 3-D SPIHT concepts, then further describes multiresolution decoding of the sequences. We have already proved the efficiency and robustness of the STTP-SPIHT in both of noisy and noiseless channels. This coder has also added benefit of parallelization of the compression and decompression algorithm, thus can be used in real-time implementation in hardware and software. In addition, we demonstrate that STTPSPIHT has the functionality of region-based video encoding/decoding and spatial and/or temporal scalability. These features are highly desirable for today’s multimedia applications, such as picture in picture function, video or volumetric image database browsing, distance learning, and video transmission over channels with highly constrained bandwidth.