Motion vector processing device

Details Motion vector processing device Motion vector processing device

1991-07-10

1992-09-15

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358140, H04N 701

Patent

active

051482690

ABSTRACT:
In motion compensated interpolation of TV-pictures it is usual to divide the picture into a plurality of blocks, a motion vector being determined for each block. This division into blocks has the disadvantage, that sometimes block boundaries become visible (dirty window effect). The invention generates a continuous vector field from the blocked vector field with the aid of a median filter which calculates for each subblock (H1) from a number of subblocks (H1 . . . H4) into which each block (H) is divided, a motion vector based on the motion vectors of the original block (H) to which the subblock belongs, and of the original blocks (E, G) adjacent to the subblock (H1) concerned.

REFERENCES:
patent: 4661849 (1987-04-01), Hinman
patent: 4691230 (1987-09-01), Kaneko et al.
patent: 4864398 (1989-09-01), Avis et al.
patent: 4890160 (1989-12-01), Thomas
patent: 4924310 (1990-05-01), von Brandt
patent: 4937666 (1990-06-01), Yang
patent: 5060064 (1991-10-01), Lamnabhi
IEEE "Transactions on Pattern Analysis and Machine Intelligence", vol. 11, No. 7, Jul. 1989.

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