Title :
Video coding using joint temporal-spatial compensation
Author :
He, Zhihai ; Chen, Chang Wen
Author_Institution :
Interactive Media Group, Sarnoff Corp., Princeton, NJ, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
In motion compensation (MC) based video coding system, macroblock data is always predicted by its temporal neighborhood in its previous frame. In this work, we observe that the macroblock data can often be better predicted by its spatial neighborhood than its temporal neighborhood, especially at low coding bit rates. Based on this observation, we propose a joint temporal-spatial compensation (JTSC) scheme for video coding, with the conventional MC being its subset. Our experimental results demonstrate that the coded picture quality is significantly improved by this novel JTSC scheme.
Keywords :
data compression; discrete cosine transforms; motion compensation; transform coding; video coding; DCT; coded picture quality; discrete cosine transform; joint temporal-spatial compensation; low coding bit rates; macroblock data; motion compensation; optimum compensation mode selection algorithm; spatial neighborhood; video coding; Bit rate; Degradation; Entropy; Helium; Layout; MPEG 4 Standard; Motion compensation; Motion estimation; Video coding; Video sequences;
Conference_Titel :
Multimedia and Expo, 2002. ICME '02. Proceedings. 2002 IEEE International Conference on
Print_ISBN :
0-7803-7304-9
DOI :
10.1109/ICME.2002.1035824
