Video signal processing apparatus with noise reduction and edge

Details Video signal processing apparatus with noise reduction and edge Video signal processing apparatus with noise reduction and edge

1996-04-25

1999-07-20

Rogers, Scott

Image analysis

Image enhancement or restoration

Edge or contour enhancement

382269, 382275, 348606, H04N 1409, G06T 500

Patent

active

059265779

ABSTRACT:
A video signal processing circuit for processing a video signal including a noise is disclosed which comprises: an edge enhancement signal generation circuit for generating an edge enhancement signal from the video signal; a noise reduction circuit for reducing a level of the noise to generate a noise reduced video signal; and an adder for adding the edge enhancement signal to the noise reduction video signal to output a processed video signal. The apparatus may further comprise an input terminal for receiving the video signal, wherein the edge enhancement signal generation circuit and the noise reduction circuit coupled to the input terminal are in parallel. This apparatus may further comprise a first delay circuit for delaying the video signal by one horizontal line period to generate a 1-H delayed video signal and a second delay circuit responsive to the video signal for generating a 2-H delayed video signal, wherein the edge enhancement signal generation circuit generates the edge enhanced signal from the video signal, the 1-H delayed video signal, and the 2-H delayed video signal and the noise reduction circuit generates the noise reduced video signal from the video signal, the 1-H delayed video signal, and the 2-H-delayed video signal.

REFERENCES:
patent: 5111285 (1992-05-01), Fujita et al.
patent: 5111511 (1992-05-01), Ishii et al.
patent: 5130820 (1992-07-01), Hirota
patent: 5666443 (1997-09-01), Kumashiro
patent: 5719962 (1998-02-01), Sugahara et al.
patent: 5757977 (1998-05-01), Mancuso et al.

Affiliated with

Also associated with

Rating

Video signal processing apparatus with noise reduction and edge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video signal processing apparatus with noise reduction and edge , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video signal processing apparatus with noise reduction and edge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1329642