Motion dependent video signal processing

Details Motion dependent video signal processing Motion dependent video signal processing

1990-04-20

1991-04-30

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358105, 358136, H04N 701

Patent

active

050123378

ABSTRACT:
In, for example, a motion compensated video standards converter wherein blocks in a first field or frame of a video signal are each compared with a plurality of blocks in the following field or frame of the video signal for deriving a plurality of motion vectors representing the motin of the content of respective blocks between the first field or frame and the following field or frame, a respective motion vector is derived, from the plurality of motion vectors, for each pixel in each block of each input field or frame by luminance matching each pixel in an input field or frame with the pixels, in the previous and following input field or frame, pointed to by said plurality of motion vectors, and when there is a luminance mis-match between a pixel in an input field or frame and all the pixels, in the respective previous or following input field or frame, pointed to by the plurality of motion vectors, the respective motion vector is derived by luminance matching each pixel in an input field or frame with the pixels, in the respective following or previous field or frame only, pointed to by the plurality of motion vectors.

REFERENCES:
patent: 4862259 (1989-08-01), Gillard
patent: 4873573 (1989-10-01), Thomas
patent: 4890160 (1989-12-01), Thomas
patent: 4942466 (1990-07-01), Sandbank

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