Title :
Enhanced MC-EZBC Scalable Video Coder
Author :
Wu, Yongjun ; Hanke, Konstantin ; Rusert, Thomas ; Woods, John W.
Author_Institution :
Microsoft Corp., Redmond, WA
Abstract :
In this paper, we provide some recent extension to the scalable subband/wavelet video coder MC-EZBC. The enhanced MC-EZBC employs an adaptive motion-compensated temporal filter (MCTF) framework. Directional I-BLOCKs and overlapped block motion compensation (OBMC) further improve MCTF efficiency. A scalable motion vector coder based on CABAC is shown to improve the overall performance at low bitrates/resolution. Frequency rolloff is incorporated to reduce spatial aliasing at low resolution without PSNR loss at full resolution. Experimental results show that the new features significantly improve the performance of MC-EZBC. We provide several comparisons to other recent coders.
Keywords :
adaptive filters; image resolution; motion compensation; video coding; MC-EZBC scalable video coder; MCTF; OBMC; adaptive motion-compensated temporal filter framework; motion compensated embedded zero block context; overlapped block motion compensation; spatial aliasing; Directional I-BLOCK; directional I-BLOCK; frequency rolloff; motion-compensated temporal filter; motion-compensated temporal filter (MCTF); overlapped block motion compensation; overlapped block motion compensation (OBMC); scalable motion-vector coding; scalable video coding; spatial high-pass transition filtering; spatial highpass transition filtering;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
DOI :
10.1109/TCSVT.2008.927003
