Apparatus for producing a noise-reducded image signal from an in

Details Apparatus for producing a noise-reducded image signal from an in Apparatus for producing a noise-reducded image signal from an in

1994-08-22

1996-03-12

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

348624, H04N 521

Patent

active

054990572

ABSTRACT:
Apparatus are provided for producing a noise-reduced image signal from an input image signal having relatively more noise. The input image signal is divided into a number of block signals. A class code is produced for each of the block signals and used to produce low noise image data which is either output as a pixel or block of the noise-reduced image signal or is used to produce the same.

REFERENCES:
patent: 4442454 (1984-04-01), Powell
patent: 4549212 (1985-10-01), Bayer
patent: 4670851 (1987-06-01), Murakami et al.
patent: 4802232 (1989-01-01), Altes
patent: 4894713 (1990-01-01), Delogne et al.
patent: 4979136 (1990-12-01), Weiman et al.
patent: 5060285 (1991-10-01), Dixit et al.
patent: 5416606 (1995-05-01), Matsumi et al.

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