Television – Image signal processing circuitry specific to television – Motion vector generation
Patent
1997-10-30
1999-10-19
Britton, Howard
Television
Image signal processing circuitry specific to television
Motion vector generation
348402, 348416, 382236, 382243, H04N 736
Patent
active
059697725
ABSTRACT:
In a video analysis device, a frame separator separates from frame images respresentative of a moving object at least first and second key frames based on either a scene change or a great movement of the object. Responsive to color and edge information, a region divider divides each key frame into region data. A vector detector applies block matching to the key frames to detect block motion vectors and detects in response to the region data of the first key frame a plurality of region motion vectors. Responsive to the region data and the region motion vectors, a correspondence establishing unit establishes correspondence between one of the region data of the first key frame and the region data of the second key frame to identify the object.
REFERENCES:
patent: 5673339 (1997-09-01), Lee
patent: 5731840 (1998-03-01), Kikuchi
patent: 5742289 (1998-04-01), Naylor
patent: 5799109 (1998-08-01), Chung
Ueda et al., "Automatic Object Linkage by Video Analysis and it's Application", 1993 Spring General Meeting of the Electronic Information and Communication Institute of Japan, Paper No. SD-9-1, pp. 7-415-7-416.
Akio Shio et al., "Segmentation of People in Motion", Konpyuta Bizyon (Computer Vision), 75-5, Nov. 22, 1991, pp. 1-8.
Britton Howard
NEC Corporation
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