Motion vector reduction in television images

Details Motion vector reduction in television images Motion vector reduction in television images

1988-05-31

1989-08-29

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, 358140, 358160, H04N 701

Patent

active

048622591

ABSTRACT:
Apparatus for reducing the number of motion vectors associated with a digital television image comprises a vector filter, a vector calculator and a vector processor for deriving for each block of pixels within the television image a plurality of motion vectors representing the most common motion vectors of pixels in the block, each of the plurality of motion vectors having associated with it a figure of merit based upon the weighted absolute difference of the motion vectors of pixels in the block, and a vector reducer for associating with the plurality of motion vectors, a further motion vector for the same position from the previous field and a further motion vector for the same position from the next field, each of said further motion vectors having associated with it a figure of merit, and for selecting a smaller plurality of motion vectors from the plurality of motion vectors and the further motion vectors in dependence on the figures of merit.

REFERENCES:
patent: 4771331 (1988-09-01), Bierling

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