Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1988-04-27
1989-03-28
Britton, Howard W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358133, 358 85, 375122, H04N 1102, H04N 1104
Patent
active
048169013
ABSTRACT:
The method and system for compressing color video data in a video communication system utilizes a three color digital signal, and involves the determination of a luminance function for each pixel in a series of video picture frames. One or more decision parameters based upon differences of the luminance function between pixels are compared with corresponding adaptive thresholds to determine decision points in the scan lines, and the digital word size of the three digital color components is reduced before encoding of run lengths between decision points of the color values.
REFERENCES:
patent: 3414677 (1968-12-01), Quinlan
patent: 3609244 (1971-09-01), Mounts
patent: 4058835 (1977-11-01), Kennedy
patent: 4060832 (1977-11-01), Devimeux et al.
patent: 4179709 (1979-12-01), Workman
patent: 4210927 (1980-07-01), Yumde et al.
patent: 4222076 (1980-09-01), Knowlton
patent: 4261018 (1981-04-01), Knowlton
patent: 4302775 (1981-11-01), Widergren et al.
patent: 4306249 (1981-12-01), Croll
patent: 4365273 (1982-12-01), Yamada et al.
patent: 4394774 (1983-07-01), Widergren et al.
patent: 4420771 (1983-12-01), Pirsch
patent: 4455571 (1984-06-01), Shimizu et al.
patent: 4468708 (1984-08-01), Coleman, Jr.
patent: 4485400 (1984-11-01), Lemelson et al.
patent: 4494144 (1985-01-01), Brown
patent: 4541012 (1985-09-01), Tescher
patent: 4546383 (1985-10-01), Abramatic et al.
patent: 4589110 (1986-05-01), Eng et al.
patent: 4605963 (1986-08-01), Reitmeier et al.
patent: 4633296 (1986-12-01), Cham et al.
patent: 4654484 (1987-03-01), Reiffel et al.
patent: 4772956 (1988-09-01), Roche
patent: 4774587 (1988-09-01), Schmitt
Gerken & Schiller, "A Low Bit-Rate Image Sequence Coder Combining a Progressive DPCM on Interleaved Raster with a Hybrid DCT Technique", IEEE Journal on Selected Areas in Communications, vol. SAC-5, No. 7, Aug. 1987.
Chen & Smith, "Adaptive Coding of Monochrome and Color Images", IEEE Transactions on Communication, vol. COM-25, No. 11, Nov. 19, 1977.
Kaneko, Hatori & Koike, "Improvements of Transform Coding Algorithm for Motion-Compensated Interframe Prediction Errors--DCT/SQ Coding," IEEE Journal on Selected Areas in Communications, vol. SAC-5, No. 7, Aug. 1987.
Kato, Mukawa & Okubo, "A Motion Picture Coding Algorithm Using Adaptive DCT Encoding Based on Coefficient Power Distribution Classification", vol. SAC-5, No. 7, Aug. 1987.
Music John
Smith Gordon H.
Thomas James L.
Britton Howard W.
Universal Video Communications Corp.
LandOfFree
Method and system for compressing color video data does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for compressing color video data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for compressing color video data will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1663684