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Free viewpoint TV system based on ray-space representation

This paper describes a novel Free-Viewpoint TV system based on Ray-Space representation. This system consists of a multi-view camera system for 3-D data capturing, a PC cluster with 16 PCs for data processing such as data compression and view interpolation, input device to specify a viewpoint, and a conventional 2-D display to show an arbitrary viewpoint image. To generate an arbitrary viewpoint image, the Ray-Space method is used. First, the multi-view image is converted to the Ray-Space data. Then, interpolation of the Ray-Space using adaptive filter is applied. Finally, an arbitrary view image is generated from the interpolated dense Ray-Space. This paper also describes various compression methods, such as model-based compression, arbitrary-shaped DCT(Discrete Cosine Transform), VQ(Vector Quantization), and subband coding. Finally, a demonstration of a full real-time system from capturing to display is explained.