In this paper, we present a comparative performance analysis of low power hardware architecture for real time implementation of context adaptive binary arithmetic coding algorithm and Context-based adaptive Variable Length Coding algorithm (CAVLC) used in H.264/ MPEG part 10 video coding standards. The video compression efficiency achieved in H.264 standard is not a result of any single feature but rather a combination of a number of encoding tools. CAVLC requires considerably more processing power to decode. The encoding process is simulated by MATLAB which compress the input video sequence and ensures better performance in video compression. The results that are obtained reveal better performance of both entropy coding methods.

Key words: H.264, CABAC, CAVLC, Huffman coding,Arithmetic coding.