Motion dependent video signal processing

Details Motion dependent video signal processing Motion dependent video signal processing

1990-04-20

1991-03-05

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358105, H04N 701

Patent

active

049981684

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 motion 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 fields or frames, pointed to by said plurality of motion vectors, and the respective luminance matches are checked against a threshold value determined in dependence on the local frequency content of the picture corresponding to the video signal.

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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