Methods and apparatus for filtering images using fuzzy logic

Details Methods and apparatus for filtering images using fuzzy logic Methods and apparatus for filtering images using fuzzy logic

1995-09-27

1997-10-21

Peng, John K.

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

348618, 348631, 348673, 348702, H04N 521, H04N 557

Patent

active

056801793

ABSTRACT:
A device for filtering video images, of the type which includes first and second circuit portions, each having first and second input terminals respectively adapted to receive digitalized luminance and chrominance components of a television signal, and an output terminal coinciding with an output terminal of the device. The first and second circuit portions further include first, second and third filters, cascade coupled to one another, and a fourth filter, respectively.
The first, second and third filters incorporate a computational circuit which uses a logic of the fuzzy type to process the digitalized luminance component. The fourth filter includes a computational circuit which processes the digitalized chrominance components based upon a parameter supplied from the second filter.

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