Motion compensated adaptive vertical filtering of an image repre

Details Motion compensated adaptive vertical filtering of an image repre Motion compensated adaptive vertical filtering of an image repre

1993-10-12

1995-09-12

Kostak, Victor R.

Television

Format conversion

Line doublers type

348701, H04N 712

Patent

active

054501334

ABSTRACT:
A process of image signal coding provides motion vectors for blocks of picture elements (pixels). An array of motion vectors for pixel blocks may be used to generate a zoom and pan vector for a full image. When the format of a vertically subsampled image is changed before coding, motion parameters for a full image are used to obtain maximum local resolution after subsampling. Remaining image areas which have not been fully motion compensated are detected by an alteration (change) detector and are vertically filtered in a field.

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Vertical Sampling Rate Decimation and Line-Offset Decimation of Colour Difference Signals, by B. Girod et al., Signal Processing, Feb. 1989.
HD-MAC: A Step Forward in the Evolution of Television Technology, by M. J. J. C. Annegarn et al., Philips Technical Review, Aug. 1987.
Interframe Coding With Two-Dimensional Motion Compensation, by T. S. Huang et al., ICASSP '82 Proceedings, May 3-5, 1982, vol. 1, IEEE.
Model Based Movement Compensation and Interpolation for ISDN Videotelephony, by F. May, IEEE International Symposium on Circuits and Systems-Proceedings, Jun. 7-9, 1988, vol. 1, IEEE.

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