A PERFORMANCE COMPARISON ON DIFFERENTIAL PREDICTION BASED ALGORITHMS IN H.264/AVC

H.264 is an Advanced Video Coding standard that gives better coding efficiency than the previous standards. In H.264, video compression is carried out in many ways such as Interframe prediction and Intraframe prediction. Intraframe prediction is carried out by the process of motion estimation by calculating motion vectors. Intraframe prediction reduces spatial redundancy (i.e.) similarity between pixels and Interframe prediction reduces the temporal redundancy (i.e.) change in video content from one frame to the next frame. In this paper we compare these two compression schemes of H.264 in terms of compression ratio, PSNR and memory bandwidth. Finally we conclude that intra prediction method provides better video quality with average compression ratio 1.034 and the percentage of memory saving is 96.26% but the average PSNR value is less compared to motion estimation.