0294956-A2 is referenced by 16 patents and cites 5 patents.

Apparatus for reducing the number of motion vectors associated with a digital television image comprises a vector filter (36), a vector calculator (37) and a vector processor (38, 39) 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 (40) 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
EP19880304614 19880520
Publication Number
0294956 (A2)
Application Date
May 20, 1988
Publication Date
December 14, 1988
Inventor
Gillard Clive Henry
Harradine Vincent Carl
Assignee
Sony
JP
IPC
H04N 09/89
H04N 07/137
H04N 07/01
H04N 11/06
H04N 11/04
H04N 09/89
H04N 09/87
H04N 07/46
H04N 07/36
H04N 07/32
H04N 07/26
H04N 07/173
H04N 07/01
H04N 11/00
H04N 11/24
H04N 11/20
H04N 11/04
H04N 09/896
H04N 09/877
H04N 07/46
H04N 07/36
H04N 07/32
H04N 07/26
H04N 07/173
H04N 07/01
H04N 11/00
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