Motion compensated video signal processing by interpolation of c

Details Motion compensated video signal processing by interpolation of c Motion compensated video signal processing by interpolation of c

1994-02-04

1996-01-16

Chin, Tommy P.

Television

Image signal processing circuitry specific to television

Motion vector generation

348415, 348412, 348409, 348405, 348700, 348416, H04N 734, H04N 746, H04N 728

Patent

active

054852242

ABSTRACT:
Motion compensated video signal processing apparatus, in which motion vectors are generated to represent image motion between a pair of input images of an input video signal, comprises means for comparing search blocks within one of the pair of input images with respective search areas, comprising a plurality of blocks, in the other of the pair of input images, to generate a first plurality of original correlation surfaces, each comprising an array of correlation values representing correlation between the respective search block and search area; means for generating a second plurality of interpolated correlation surfaces by interpolation from the original correlation surfaces; and means for generating a respective motion vector from each interpolated correlation surface, in dependence on a point of maximum correlation in that interpolated correlation surface.

REFERENCES:
patent: 4937666 (1990-06-01), Yang
patent: 5005078 (1991-04-01), Gillard
patent: 5008744 (1991-04-01), Fernando et al.
patent: 5021881 (1991-06-01), Avis et al.
patent: 5027203 (1991-06-01), Samad et al.
patent: 5157732 (1992-10-01), Ishii et al.
patent: 5162907 (1992-11-01), Keating et al.
patent: 5347312 (1994-09-01), Saunders et al.
Conference: Signal Processing of HDTV, II; Proc Third Workshop on HDTV, pp. 131-137; M. Ziegler. Also INSPEC abstract B91011288 See whole article.

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