Image analysis – Image compression or coding – Interframe coding
Patent
1993-04-02
1996-01-16
Boudreau, Leo H.
Image analysis
Image compression or coding
Interframe coding
382250, 348420, G06K 936, H04N 712
Patent
active
054855330
ABSTRACT:
A coding method and apparatus is for coding a digital video signal of interlaced type. Three-dimensional (horizontal, vertical and temporal directions) blocks are constructed for each of a plurality of picture elements, orthogonal transform is performed to each of the three-dimensional blocks and coefficients are coded. Coefficients non-effected by a pseudo-moving part are weighted with a low rate, and coefficients effected by a pseudo-moving part are weighted with high rate. After the vertical positions of picture elements of odd-number fields and those of even-number fields are coincided with each other by an intra-field picture element operation, the digital video signal is formatted and three-dimensional orthogonal transform is performed.
REFERENCES:
patent: 4394774 (1983-07-01), Widergren et al.
patent: 4468688 (1984-08-01), Gabriel et al.
patent: 4691329 (1987-09-01), Juri et al.
patent: 4704628 (1987-11-01), Chen et al.
patent: 4933763 (1990-06-01), Chantelou
patent: 5081532 (1992-01-01), Rabii
patent: 5126962 (1992-06-01), Chiang
Nadas, "Compression of Video Data via Three-Dimensional Bandwidth Reduction," IBM Technical Disclosure Bulletin, vol. 19, No. 11, Apr. 1977, pp. 4207-4210.
Signal Processing of HDTV: Apr. 24, 1984 "Proceedings of the Second International Workshop on Signal Processing of HDTV". Chantelou et al. (Feb. 29-Mar. 2, 1988), pp. 231-238.
Fernseh & Kino Technik "Digitaler Video-Normwandler" Richards et al. (Feb. 1988), pp. 60-64.
"Digital Picture Representation and Compression", pp. 441-443, Netravali et al., (date unknown).
IEEE Transaction on Communications "On Interframe Transform Coding", Natarajan et al. vol. COM-25, No. 11, Nov. 1977, pp. 1323-1329.
Asamura Yoshinori
Hatano Yoshiko
Itou Takashi
Onishi Ken
Tsukamoto Manabu
Boudreau Leo H.
Johns Andrew W.
Mitsubishi Denki & Kabushiki Kaisha
LandOfFree
Method and apparatus for encoding video signals in 3-D blocks wi 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 apparatus for encoding video signals in 3-D blocks wi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for encoding video signals in 3-D blocks wi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-315440