Motion signal processor

Details Motion signal processor Motion signal processor

1990-06-29

1992-11-24

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358167, H04N 521

Patent

active

051667886

ABSTRACT:
The present invention relates to a motion signal processor in which a motion signal for a video signal is generated by frame difference circuit. The resultant signal is spatially low-pass filtered. The absolute value of the motion signal is calculated. Spatial correlation is imposed on the motion signal by assigning each sample the greatest value of a series of samples within an image window. The motion signal samples are then compared to a threshold value to generate a 1-bit signal. From the 1-bit signal a motion area is presumed by adaptively smoothing the motion signal based upon its the spatial correlation.

REFERENCES:
patent: 4539594 (1985-09-01), Illetschko
patent: 4730217 (1988-03-01), Tonge et al.
patent: 4733297 (1988-03-01), Katsumata et al.
patent: 4868650 (1989-09-01), Weckenbrock

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