INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATION ENGINEERING & TECHNOLOGY (IJECET)

Nowadays, as the usage of internet is increased at such an extent that we cannot imagine our lives without internet. The internet facilitates us with its valuable services like online video sharing, viewing and downloading, e-advertising, video conferencing, video telephony etc. These all services consume most channel capacity, so the biggest problem faced is delay in transfer of multimedia files and bandwidth required for the transmission of video in terms of cost of transmission. So to overcome the problem video compression is necessary. The challenges faced by the video compression algorithm, is to maintain tread off between: quality of video, compression ratio and computational complexity. MPEG-4 is a latest algorithm but having higher computational complexity, as it is object based compression algorithm, whereas MPEG-2 is somewhat older but having low computational complexity and giving less compression as it is subjective compression. Here in this paper, authors have introduced modification in MPEG-2 algorithm to achieve compression almost nearer to MPEG-4 with little increase in the computational complexity of the algorithm.