MotionEstimation Technique forReal Time Compressed Video Transmission

Motion Estimation is one of the most critical modules in a typical digital video encoder. many implementation\ud tradeoffs should be considered while designing such a module. It candefine ME as a part of inter coding\ud technique.Inter coding refers to a mechanism of finding co-relation between two frames (stillimages), which are\ud not far away from each other as far as the order of occurrence is concerned, one frame is called the reference\ud frameand the other frame called the current frame, and then encoding the information which is a function of this\ud co-relation‟ instead of the frame itself. This paper focuses more on block matching algorithms which comes\ud under feature/region matching. Block motion estimation algorithms are widely adopted by video coding\ud standards, mainly due to their simplicity and good distortion performance In FS every candidate points will be\ud evaluated and more time will be taken for predicting the suitable motion vectors. based on the above noted\ud drawback, the above said adaptive pattern is proposed\ud Optimization is proposed at algorithm/code-level for both encoder and decoder to make it feasible to perform\ud real-time H.264/AVC video encoding/decoding on mobile device for mobile multimedia applications. For\ud encoder an improved motion estimation algorithm based on hexagonal pattern search is proposed exploiting the\ud temporal redundancy of a video sequence. For decoder, at code level memory access minimization scheme is\ud proposed and at algorithm level a fast interpolation scheme is proposed