E. Reusens, JOINT OPTIMIZATION OF REPRESENTATION MODEL AND FRAME SEGMENTATION FORGENERIC VIDEO COMPRESSION, Signal processing, 46(1), 1995, pp. 105-117
This paper describes a new image sequence compression system capable o
f efficiently representing any type of visual data at very low bit-rat
e. The coder presents a flexible structure open to evolution. Thanks t
o a perfect rate and frame quality control, buffer regulation issue is
solved. The technique relies on the joint optimization of two degrees
of freedom, namely adaptive representation model and adaptive frame s
upport partition. Optimization is performed in a rate-distortion sense
and is based on the theory of optimal resources allocation. System pe
rformances are evaluated in a particular environment, namely at very l
ow bit-rate in the framework of video-telephony applications. Simulati
on results demonstrate the efficiency of the system over bit-rates ran
ging from 4.6 to 32 kbit/s.