H.264/AVC ENCODER FOR LOSSLESS CONTEXT-BASED ADAPTIVE BINARY ARITHMETIC CODING, AND ENCODING METHOD THEREOF

摘要

The present invention relates to an H.264/AVC encoder for lossless context-based adaptive binary arithmetic coding, capable of improving the efficiency of lossless coding compression during an entropy encoding process of H.264/AVC encoding. The present invention provides an H/264/AVC encoder equipped with an entropy encoder, in which said entropy encoder performs a significant map encoding for all of the blocks to be encoded, and a level encoding is performed by adjusting cut-off values to fit the statistical distribution of a level, thereby improving data compression efficiency during a lossless context-based adaptive binary arithmetic coding performed by the entropy encoder in H.264/AVC encoding.