Method and device for detection of moving points in a television

Details Method and device for detection of moving points in a television Method and device for detection of moving points in a television

1984-08-15

1986-09-23

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358135, 358136, H04N 712

Patent

active

046138943

ABSTRACT:
The method consists in computing a luminance and/or chrominance gradient indicator (I.sub.g) at each point of the image, in computing a threshold value (S(X.sub.o)) as a function of each gradient obtained, in measuring the inter-image luminance and/or chrominance difference of each point of the image, in comparing the inter-image difference obtained at each point with the corresponding computed threshold value, in applying the result of the comparison to the input of a density-filtering device in order to detect the density of moving points in proximity to each scanned point and to compare the density obtained in respect of each point with a predetermined density threshold value in order to provide an indication of moving points when the density at each point considered exceeds the predetermined density threshold value.

REFERENCES:
patent: 4437119 (1984-03-01), Matsumoto
patent: 4546386 (1985-10-01), Matsumoto
patent: 4567519 (1986-01-01), Richard

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