Method and apparatus for detecting motion vectors of pixel block

Details Method and apparatus for detecting motion vectors of pixel block Method and apparatus for detecting motion vectors of pixel block

1994-09-16

1998-03-17

Au, Amelia

Television

Image signal processing circuitry specific to television

Motion vector generation

348700, 348415, 348416, H04N 718

Patent

active

057293023

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 be reduced in an interpolating process.

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