Television – Image signal processing circuitry specific to television – Motion vector generation
Patent
1995-10-23
1997-03-25
Britton, Howard W.
Television
Image signal processing circuitry specific to television
Motion vector generation
H04N 736
Patent
active
056149590
ABSTRACT:
A method and apparatus for motion estimation in accordance with the present invention compares image signals of image blocks within a previous frame corresponding to a motion vector detected among error values used for detecting the motion vector of a pixel unit and surrounding image blocks which are generated by moving the reference image block to every direction per one pixel respectively with the image signal of image blocks within a present frame which the motion estimation is performed, and then generates error values according to the comparison results. By vertically comparing the generated error values, a vertical component in the motion vector of a half-pixel unit is detected. By horizontally comparing the generated error values, a horizontal component to the motion vector of a half-pixel unit is detected. Accordingly, the present invention leads to a greater efficiency to reduce the amount of data to be processed for the detection of the motion vector of a half-pixel unit.
REFERENCES:
patent: 4937666 (1990-06-01), Yang
patent: 4989087 (1991-01-01), Pele
patent: 5241608 (1993-08-01), Fogel
patent: 5280351 (1994-01-01), Wilkinson
patent: 5289274 (1994-02-01), Kondo
Ahn Wooyoun
Jeong Jechang
Britton Howard W.
Samsung Electronics Co,. Ltd.
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