Motion Estimation Algorithm For Video Coding

As we know, people capture the percent of seventy information coming from vision, video information is very important in multimedia; at the same time, video data has much redundancy, the key factor of multimedia's service quality is the video quality after compression. The key technology of MultiMedia Application is Digital Video, That is to say the key technology of the use of MultiMedia is solute the conflict of the data and the narrow networks, the solution of which is compress. So the encoding of video is the key technology of information field.As a result, video sequence has rather relativity on time axis, Motion Estimation and Motion Compensate can reduce this relativity effectively, so it has been widely used in many video standards such as and MPEG, as a key module in video encoder, motion estimation is rather complex in computation. For this reason, fast motion estimation has always been a favorite to the researchers in the field.After investigating scores of algorithms, analyzing the characteristics of video sequences, the distribution of motion vector and pertinence, this article has summarized all the algorithms completely. Aim at the question of algorithms in existence, we ameliorate the Multiresolution Analysis Motion Estimation based on the Wavelet Transform's feature. Experiments show that the algorithm can obtain almost the same as full search at very low computation cost. Comparing to the current algorithms, it outperforms both speed and quality...