Image analysis – Image compression or coding – Shape – icon – or feature-based compression
Patent
1998-01-23
2000-07-11
Couso, Jose L.
Image analysis
Image compression or coding
Shape, icon, or feature-based compression
382242, 382241, G06K 946, G06K 948
Patent
active
060884851
ABSTRACT:
An object of this invention is to provide a coding method and a coding apparatus for efficiently coding both a pixel value signal and a shape signal which are included in an image signal to be coded, wherein a prediction changing unit outputs a reference pixel value changing signal and a reference shape signal to a switching circuit which selects a reference pixel value signal and to a switching circuit which selects a reference shape signal, respectively, so as to control the switching circuit in a way that appropriate reference signals are to be selected.
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"Object-Oriented Analysis-Synthesis Coding of Moving Images"; Signal Processing: Image Communication, vol. 1, Jan. 1, 1989, pp. 117-138, H.G. Musmann et al.; XP000519208 *abstract; figures 3, 4*.
"Object-Oriented Analysis-Synthesis Coding Based on Moving Two-Dimensional Objects"; Signal Processing: Image Communication, vol. 2, No. 4, Dec. 1, 1990, pp. 409-428, M. Hoetter; XP000234775 *abstract; figures 1,2*.
"MPEG-4 Video Verification Model Version 1.0 (Report ISO/IEC JTC1/SC29/WG11 MPEG4/N1172)" International Organisation for Standardisation, Jan. 1996, pp. 1-49, XP002056540 *p. 3, paragraph 1--p. 10, paragraph 1; figures 2.11, 3.2.1*
Couso Jose L.
Dang Duy M.
Matsushita Electric - Industrial Co., Ltd.
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