Fast Mode Decision Algorithm for Spatial Scalability in Scalable Video Coding
Hahyun Lee, Jung Won Kang, Jeong-Ju Yoo · ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications · 2007
SVC is being standardized as an extension of H.264/AVC by JVT of ITU-T VCEG and ISO/IEC MPEG. Since SVC is an extension of H.264, it also uses the variable block size and a rate-distortion optimization (RDO) technique for each macroblock. For sptial enhancement layer, SVC includes a new mode as well as the modes available in H.264/AVC. As a result of these, computational complexity in spatial enhancement layer is more increased than base layer. To overcome this, we propose a fast mode decision algorithm for spatial enhancement layer of SVC using the MB partitioning of base layer and the property of all zero cofficient block. Exprimental results show that the proposed algorithm can siginficantly reduce the computational complexity without compromising the coding efficiency.