Title :
Video coding with motion compensation for groups of pictures
Author :
Flierl, Markus ; Girod, B.
Author_Institution :
Inf. Syst. Lab., Stanford Univ., CA, USA
Abstract :
This paper discusses the efficiency of a compression scheme for video sequences that jointly encodes groups of pictures. Our approach, motion-compensated transform coding, applies a KLT to decorrelate a set of motion-compensated pictures for efficient encoding. The theoretical investigation utilizes a signal model for inaccurate motion compensation and provides a performance comparison to motion-compensated prediction. We discuss the influence of motion accuracy, residual noise, and the correlation of displacement errors dependent on the number of coded pictures.
Keywords :
Karhunen-Loeve transforms; data compression; decorrelation; image sequences; motion compensation; transform coding; video coding; KLT; coded pictures; compression scheme; correlation; decorrelation; displacement errors; encoding; groups of pictures; motion accuracy; motion compensation; motion-compensated pictures; motion-compensated prediction; motion-compensated transform coding; residual noise; video sequences; Additive noise; Decorrelation; Information systems; Karhunen-Loeve transforms; Motion compensation; Predictive models; Transform coding; Utility programs; Video coding; Video sequences;
Conference_Titel :
Image Processing. 2002. Proceedings. 2002 International Conference on
Print_ISBN :
0-7803-7622-6
DOI :
10.1109/ICIP.2002.1037961
