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Segmentation-based tnage Coding Method without Need for Transmission of Contour Information  

Choi Jae Gark (동의대학교 컴퓨터 소프트웨어공학부)
Kang Hyun-Soo (충북대학교 전기전자컴퓨터공학부)
Koh Chang-Rim (경일대학교 전자정보통신공학부)
Kwon Oh-Jun (동의대학교 컴퓨터 소프트웨어공학부)
Lee Jong-Keuk (동의대학교 컴퓨터 소프트웨어공학부)
Publication Information
Journal of KIISE:Computer Systems and Theory / v.32, no.5, 2005 , pp. 187-195 More about this Journal
Abstract
A new segmentation-based image coding method which no needs transmission of contour data is proposed. The shape information acts as bottleneck in the segmentation-based video coding because it has much portion of transmission data. The proposed method segments a previous decoded frame, instead of a current frame. As a result, there is no need for transmission of contour information to a decoder. Therefore, the saved bits can be assigned to encode other information such as error signals. As shown in experiment results, if data rate is very highly increased due to abrupt motion under very low bit rate coding having limited transmission bits, PSNR of conventional block-based method go down about 20dB, while the proposed method shows a good reconstruction quality without rapid PSNR drop.
Keywords
segmentation-based image coding; forward motion estimation; morphoiogical segmentation; shape coding;
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1 Salman Nassir and Liu Chongqing, 'Edge detection and image segmentation based on K-means and watershed techniques,' Proceedings of SPIE Image Matching and Analysis, V. 4552, 2001
2 M. Bierling, 'Displacement estimation by hierarchical block matching,' SPIE, vol. 1001, VCIP '88, pp. 942-951, 1988
3 M. Eden and M. Kocher, 'On the performance of a contour coding algorithm in the context of image coding part I : contour segment coding,' Signal Processing, vol. 8, pp. 381-386, 1985   DOI   ScienceOn
4 L. Vincent and P. Soille, 'Watersheds in Digital Spaces : An Efficient Algorithm based on Immersion Simulations,' PAMI. 13, no. 6, pp 583-589, 1991   DOI   ScienceOn
5 P. Salembier and M. Pardas, 'Hierarchical morphological segmentation for image sequence coding,' IEEE Trans. on Image Processing, vol. 3, no. 5, Sep. 1994   DOI   ScienceOn
6 Huitao, 'Efficient image-dependent object shape coding,' Proceedings of IEEE International Conference on Image Processing(ICIP), pp. 169-172, Sept. 22-25 2002   DOI
7 J. Konrad, A. Mansouri, E. Dubois and V. Dang, 'On motion modeling and estimation for very low bit rate video coding,' SPIE vol. 2501, 1995
8 H. G. Mussman, M. Hotter and J. Osterman, 'Object Oriented Analysis-Synthesis Coding,' Signal Processing: Image Communication, vol. 1, pp.117-138, 1989   DOI   ScienceOn