Motion adaptive television signal processing system

Details Motion adaptive television signal processing system Motion adaptive television signal processing system

1986-11-25

1987-12-29

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 11, 358 37, 358140, 358160, H04N 521

Patent

active

047164620

ABSTRACT:
A motion adaptive television signal processing system is disclosed. An image change estimator estimates the image change over an image time interval. A television signal processor adaptively processes the signal in response to a control signal. A control signal generator is coupled between the image change estimator and the adaptive television signal processor. The control signal generated exhibits a function substantially described by: K=Ae.sup.-b/x where K is the value of the control signal, A is the maximum value the control signal can attain, x is the estimated image change, and b is a constant. In a second embodiment, a second estimator estimates a parameter of the television signal. The relationship of the control signal to the estimated image change is varied as a function of the estimated parameter.

REFERENCES:
patent: 4530004 (1985-07-01), Achiha et al.
patent: 4598309 (1986-07-01), Casey
patent: 4617589 (1986-10-01), Weckenbrock
patent: 4636862 (1987-01-01), Hatori
patent: 4651211 (1987-03-01), Weckenbrock
"NTSC TV Scan Conversion Using Motion Adaptive Processings"; Suzuki et al.; NEC Res. & Develop., No. 77, Apr. 1985, pp. 38-43.
"Video Noise Reduction"; Drewery et al.; BBC Research Department Report; PH-256; Jul. 1984.

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