Apparatus and method of tracking an image-feature using a block

Details Apparatus and method of tracking an image-feature using a block Apparatus and method of tracking an image-feature using a block

1996-07-24

1999-08-31

Lee, Richard

Television

Bandwidth reduction system

Data rate reduction

348420, 348699, H04N 732

Patent

active

059460415

ABSTRACT:
An image-feature tracking apparatus for tracking an object includes a feature deriving part for deriving at least one feature in an image of the object, and a matching operation part for matching two frames of the image defined at different times in the image of the object and producing an approximate motion vector of the feature. The apparatus further includes a motion-vector correcting part for correcting the approximate motion vector provided in the matching operation part based on a position of the feature derived in the feature deriving part. In the image-feature tracking apparatus, from a corrected motion vector provided in the motion-vector correcting part, a position of the object is detected.

REFERENCES:
patent: 4691230 (1987-09-01), Kaneko et al.
patent: 4998168 (1991-03-01), Gillard
patent: 5452021 (1995-09-01), Kusaka et al.
patent: 5471252 (1995-11-01), Iu
patent: 5585843 (1996-12-01), Ishizuka et al.

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