An efficient ME scheme for H.264 to SVC transcoder
Ju-Heon Seo, Jae‐Gon Kim, Jong-Ki Han · ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications · 2007
Transcoding is an important technique for heterogenous networks and devices whose bandwidths and coding schemes are diverse and various. When video sequence is encoded by H.264 in transmitter, the capability and codec standard used in the receiver are not considered. This fact results in a great lack of flexibility in the complex network supporting various codec standards. An efficient way to solve these problems is to use a transcoder that provides a match between coding schemes. H.264 to SVC transcoding is an interesting research topic and has various applications. We propose an efficient motion vector estimation scheme for H.264 to SVC transcoding. In the proposed algorithm, the MVs and mode information decoded in H.264 part of the transcoder are reused in ME/MD of SVC encoder. Experimental results show that the proposed approach can significantly reduce the computational complexity of the transcoder while the generated bit rate and the image qualities are unchanged.