Television – Image signal processing circuitry specific to television – Chrominance signal amplitude control
Patent
1992-07-30
1994-07-05
Kostak, Victor R.
Television
Image signal processing circuitry specific to television
Chrominance signal amplitude control
348628, H04N 964
Patent
active
053272285
ABSTRACT:
A system and method for automatically improving the picture quality of television or other video based images, based upon picture content, using improved rule based picture analysis and compensation techniques. The distribution of facial and non-facial tones in a television picture are determined and used to control of picture color quality using neural network techniques. A preferred embodiment of the invention adjusts the brightness, contrast and color saturation of a displayed picture based upon selected portions of the received picture signal. These controls are adjusted every 1/60th of a second (i.e. at the end of each field) to provide an improved visual display. Analysis of the video signal in one field of a frame provides the information for adjusting the picture quality of the subsequent field of that frame.
REFERENCES:
patent: 4823184 (1989-04-01), Belmares-Sarabia et al.
patent: 4864490 (1989-09-01), Nomoto et al.
patent: 4866645 (1989-09-01), Lish
patent: 4918620 (1990-04-01), Ulug
patent: 5121443 (1992-06-01), Tomlinson
patent: 5161014 (1992-11-01), Pearson et al.
patent: 5168352 (1992-12-01), Naka et al.
"Neural Networks and Fuzzy Systems--A Dynamic Systems Approach to Machine Intelligence", Kosko.
"An Integrated One-Chip Processor for Color TV Receivers", Harwood, IEEE Trans. Consum. Electrron., vol. CE-23, pp. 300-310, Aug. 1997.
"A Chrominance Demodulator IC with Dynamic Flesh Correction", Harwood, IEEE Trans. Consum. Electron., vol. CE-22, pp. 111-117, Feb. 1976.
"An Introduction to Computing with Neural Nets", IEEE, ASSP Magazine Apr. 17, 1987.
"Analogue Circuits for Variable--Synapse Electronic Neural Networks", Tsividis & Satyanarayana, Electronic Letters, Nov. 19, 1987.
"Fuzzy Logic Flowers in Japan", Schwartz & Klir, IEEE, Spectrum, Jul. 1992.
Cubicalc Brochure, Hyperlogic .COPYRGT. 1990.
Dalal Sandeep M.
Satyanarayana Srinagesh
Kostak Victor R.
Marion Michael E.
North American Philips Corporation
LandOfFree
System for improving the quality of television pictures using ru does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for improving the quality of television pictures using ru, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for improving the quality of television pictures using ru will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-799857