6533b850fe1ef96bd12a80fa

RESEARCH PRODUCT

A HARDWARE SOLUTION FOR HEVC INTRA PREDICTION LOSSLESS CODING

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description

International audience; The lossless coding mode of the High Efficiency Video Coding (HEVC) main profile that bypasses transform, quantization, and in-loop filters is described. Compared to the HEVC non-lossless coding mode, the HEVC lossless coding mode provides perfect fidelity and an average bit-rate reduction of 3.2%–13.2%. It also significantly outperforms the existing lossless compression solutions, such as JPEG2000 and JPEG-LS for images as well as WinRAR for data archiving. A fully parallel-based solution is presented in this paper in order to reduce processing time and computation complexity resulting from intra prediction. Two higher performance structures are designed to perform angular and planar modes, and implemented in five engines which compose our architecture. This solution supports all intra prediction modes for all prediction unit sizes. The synthesis results show that our design can run at 256 MHz for FPGA Xilinx Virtex 7 and is capable to process real time 120 1080p frames per second.