120 Video Compression Scheme Based on Improved H.264 Motion Estimation Algorithm
Zhixin Hu · Science Technology and Engineering · 2012
In the process of medical treatment,pre-hospital emergency is very important.So aiming at video coding's real-time request in the process of 120 Vehicle Terminal video transmission,a Motion Estimation Algorithm(MEA) based on H.264 encoder variable block size is proposed.The best model of coding macro-block is forecasted quickly using global search and the motion vector in each division is refined using fine search based on the improved VBS Motion Estimation Algorithm(MEA),in order to improve the accuracy of motion estimation and reduce the complexity of algorithm.The research results show that the mean SNR and compressive property are ensured,meanwhile,algorithm coding time is decreased respectively by 80% and 55% compared with FS and FME,and so the effect is good.