Apparatus and method for detecting motion vectors of pixel block

Details Apparatus and method for detecting motion vectors of pixel block Apparatus and method for detecting motion vectors of pixel block

1997-12-10

2000-06-06

Rao, Andy

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348699, 348700, 348416, 348415, 348413, H04N 718

Patent

active

060728337

ABSTRACT:
A motion detector and a motion area detector detect shifts of areas at which motions exist by using signals of fields before and after the field to be detected. According to shifts of the detected areas, an initial vector closest to the true motion is selected among prospective initial vectors produced at an initial vector selector or an initial vector detector by a block matching method, thereby reducing detection errors in motion vectors occurring at a time of the detection of motion vectors, and thereby improving accuracy of motion vectors, so that image distortions would reduced in an interpolating process.

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