Image analysis – Image compression or coding – Interframe coding
Patent
1996-07-10
1999-06-29
Couso, Jose L.
Image analysis
Image compression or coding
Interframe coding
382243, 382107, 348384, G06K 936
Patent
active
059179490
ABSTRACT:
An improved grid moving method of an object image and an apparatus using the same which are capable of reducing the amount of information with respect to the image of an object by moving the grid in accordance with a position in which an image of the object having shape information exists, which include the steps of: a moving step for forming a grid over an image of an object having shape information, segmenting the image into a plurality of unit regions, and moving the formed grid; a judging step for judging an amount of the information at each position to which the grid is moved in the moving step; a detecting step for detecting a position at which the amount of the information is reduced; a compaction step for reforming the grid in accordance with the position detected in the detecting step and for coding the image of the object existing in unit regions of the reformed grid; and a motion estimation step for reforming the grid in accordance with the position detected in the detecting step and for estimating the motion of the image of the object in the unit regions in which the image of the object exists among the unit regions segmented by the reformed grid.
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MPEG-4 Proposal Package Description (PPD)--Revsion 3 (Tokyo Revision), ISO/IEC JTC1/SC29/WG11 N998, MPEG 95, Jul. 1995, Source: AOE Sub Group.
"Low-Complexity Shape Adaptive DCT (SA-DCT) for Coding of Region Texture",
Chun Sung-Moon
Kim Jae-Kyoon
Moon Joo-Hee
Park Gwang-Hoon
Yoo Kuk-Yeol
Couso Jose L.
Do Anh Hong
Hyundai Electronics Industries Co,. Ltd.
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