Title :
Rate-distortion optimized region-based video coder
Author :
Pateux, S. ; Labit, Claude
Author_Institution :
Temics Project, IRISA, Rennes, France
Abstract :
In this paper, we present an efficient region-based video coding scheme. The region partioning is optimized according to a rate-distortion criterion in order to achieve constant bit-rate or constant quality. This optimization is led through a labeling for each image of an initial segmentation map using regions merging, regions´ label relaxation and quantization variation. Results obtained show the performance of this coding scheme compared to MPEG and H263 codecs.
Keywords :
image segmentation; video coding; rate-distortion criterion; region-based; segmentation map; video coder; video coding; Bit rate; Decoding; Image coding; Image processing; Motion compensation; PSNR; Quantization; Rate-distortion; Video coding; Visual communication;
Conference_Titel :
Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-5467-2
DOI :
10.1109/ICIP.1999.822855
