Abstract

Distributed Video Coding(DVC), based on the theorems proposed by Slepian-Wolf and Wyner-Ziv, is attracting attention as a new paradigm for video compression. In DVC systems, several encoders will send bit streams to a single decoder which must handle all incoming bit streams. Some of the DVC systems use intraframe compression based on DCT. However, conventional DVC systems have low affinity with DCT, because they fail to generate the necessary side information until after decompressing all bit streams. In this paper, we propose a new DVC scheme that is an easy way to generate the side information before decompressing all bit streams. The scheme utilizes scalability of JPEG 2000 and the multi-component transforms of JPEG 2000 part-2. Tests confirm that the PSNR of the new scheme is about 7[dB] higher than that of conventional JPEG 2000.

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