04862259 is referenced by 35 patents and cites 1 patents.

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.

Title
Motion vector reduction in television images
Application Number
7/200531
Publication Number
4862259
Application Date
May 31, 1988
Publication Date
August 29, 1989
Inventor
Vincent C Harradine
Chineham
GB
Clive H Gillard
Chineham
GB
Agent
Alvin Sinderbrand
Assignee
Sony
JP
IPC
H04N 7/01
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