In the emerging communication system, research on fast coding algorithm is the key technology for improving video quality. It has been a hotspot project of application to video communications in recent years.H.264 is the latest video coding standard developed by the Joint Video Team (JVT) which is formed with ITU-T Video Coding Experts Group (VCEG) and ISO/IEC Motion Picture Experts Group (MPEG) in 2003. H.264 is a new developing video coding standard,as MPEG-4 part10,and it aims at proposing a high quality...