PERFORMANCE EVALUATION OF ENTROPY CODING FOR MPEG-4 VIDEO CODEC

Abstract: This Paper deals with the Evaluation, Analysis and Algorithm of Context Adaptive Binary Arithmetic coding (CABAC) MPEG-4 Video Codec.MPEG-4 is an ISO/IEC video coding standard which supports highly interactive multimedia applications as well as traditional applications. It includes many advanced functionalities such as interactivities, scalabilities and error resilience. The growing popularity of MPEG-4 in the field of animation and interactive movies was the main motivation to include it in this work. This paper investigates the effect of CABAC Entropy coding scheme that is a crucial parameter for the performance of MPEG-4 video coder. In this paper Algorithm for Context Adaptive Binary Arithmetic coding (CABAC) is proposed for MPEG-4 Video Codec. The compression efficiency of CABAC is 8-12% better as compared to CAVLC and it can be up to 30% better when compared to other entropy compression methods.

Keywords: CABAC, Entropy Coding, PSNR, QCIF and SSIM.