Motion Vector Refine Algorithms of MPEG-2 to H.264 Transcoding
Yu Liu, Wang Li, Lei Wang · Jisuanji gongcheng · 2008
Information of coded video streams is always used by video transcoders to improve the efficiency.This paper suggests a MPEG-2 to H.264 video transcoder.The motion estimation difference between MPEG-2 and H.264 is analyzed and several Motion Vector(MV) refine algorithms are proposed to improve the transcoding quality.Using the suggested MV refine algorithms,the transcoder can generate high quality H.264 videos with low complexity.