Television – Image signal processing circuitry specific to television – Motion vector generation
Patent
1994-05-09
1996-02-20
Chin, Tommy P.
Television
Image signal processing circuitry specific to television
Motion vector generation
348700, 348402, 348416, 348419, 348415, 348405, 348411, H04N 728, H04N 736
Patent
active
054933447
ABSTRACT:
A system estimating the movement of video signals to half-pixel accuracy includes a first motion detector receiving the present video block data and data for a corresponding search area for detecting a first motion vector signal due to the differences in data between the present video block and respective previous video blocks in the search area and generates error signals for respective vertical, horizontal and diagonal directions due to the video data differences between the blocks, a vector component detector receiving the error signals from the first motion detector for generating component detection signals representing respective vertical and horizontal components of a second motion vector having half-pixel accuracy with respect to the vertical, horizontal and diagonal directions, and a second motion detector for detecting a second motion vector signal in response to respective component detection signals generated by the vector component detector. A motion vector generator receives the first and the second motion vector signals and vector-sums the received signals to output the vector-summed result as a final motion vector. A corresponding motion estimation method is also described.
REFERENCES:
patent: 4862267 (1989-08-01), Gillard et al.
patent: 4937666 (1990-06-01), Yang
patent: 5173772 (1992-12-01), Choi
patent: 5212248 (1993-05-01), de Haan
patent: 5276513 (1994-01-01), van der Wal et al.
patent: 5311305 (1994-05-01), Mahadevan et al.
patent: 5355168 (1994-10-01), Sugiyama
patent: 5398078 (1995-03-01), Masuda et al.
Chin Tommy P.
Rao Anand S.
Samsung Electronics Co,. Ltd.
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