Title :
Perceptual bit allocation for MPEG-2 CBR video coding
Author :
Verscheure, O. ; Basso, A. ; El-Maliki, M. ; Hubaux, J.-P.
Author_Institution :
TCOM Lab., Swiss Federal Inst. of Technol., Lausanne, Switzerland
Abstract :
In this paper we propose a novel bit allocation scheme for MPEG-2 constant bit rate (CBR) video coding using a model of the early stages of human vision. On the basis of this model we derive a measure of the macroblock activity different from the one proposed in the MPEG-2 test model 5 (TM5). Experiments, obtained by substituting the proposed perceptual activity measure to the one proposed by the MPEG-2 TM5, yield better results, among which are the improvement of the perceptual quality for a fixed bitrate and vice-versa
Keywords :
video coding; visual perception; MPEG-2 constant bit rate video coding; MPEG-2 test model 5; TM5; human vision model; macroblock activity; perceptual activity measure; perceptual bit allocation; perceptual quality; Adaptive control; Bit rate; Frequency; Humans; Laboratories; Programmable control; Quantization; Transform coding; Video coding; Visual system;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560616
