Motion compensation estimating device and method achieving impro

Details Motion compensation estimating device and method achieving impro Motion compensation estimating device and method achieving impro

1994-09-20

1996-11-05

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348420, H04N 736

Patent

active

055722580

ABSTRACT:
An area subdividing unit subdivides a reference image, producing sub-areas. An inter-frame difference calculating device determines inter-frame differences between the reference image and an input image. A moving area detecting unit designates, by reference to the inter-frame differences, moving areas from a plurality of sub-areas. An area integrating device integrates the detected moving areas according to information of the reference image to create a plurality of moving object areas. A motion estimating device estimates motion between the input and reference images for each moving object area to attain motion parameters. A motion compensating unit compensates motion for each moving object area based on the motion parameters to generate a motion compensated prediction image. A motion compensating apparatus is capable of achieving complete and exact motion compensation using area information and a reduced number of encoding operations.

REFERENCES:
patent: 4779131 (1988-10-01), Matsumoto et al.
patent: 5177608 (1993-01-01), Ohki et al.
Michael Hotter et al, "Image Segmentation Based on Object Oriented Mapping Parameter Estimation", Signal Processing, vol. 15, No. 3, 1988, pp. 315-334.
"A Study on Motion Compensation Based on Segmentation by Isodensity Areas", The Proceedings Of The 1993 National Convention Of IECE (Japan), D-292, pp. 7-53.

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