Method of coding a video signal whereby pictures can be reproduc

Details Method of coding a video signal whereby pictures can be reproduc Method of coding a video signal whereby pictures can be reproduc

1985-11-13

1988-03-22

Goldberg, E. A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358105, 358136, 358138, H04N 712, H04N 718

Patent

active

047332980

ABSTRACT:
In coding a digital video signal representative of successive pictures by using correlation between the successive pictures, each picture is divided into a predetermined number of blocks of picture elements. An original motion vector is used to represent a movement of each block between two pictures. The digital video signal is predictively coded by using the original motion vector to produce a coded signal. An on-off control signal is produced in order to determine whether or not subsampling is carried out at each of the blocks. A part of the coded signal is subsampled into a subsampled signal with reference to the on-off control signal and a remaining part is left as it is as a non-subsampled signal. The subsampled and the non-subsampled signals are code-converted into a converted code signal. The original motion vector and the on-off control signal are code-converted into a converted motion vector signal and a converted control signal which is distinguishable from the converted motion vector signal. The converted control signal specifies transition points which appear in the on-off control signal when the on-off control signal is switched between off and on.

REFERENCES:
patent: 4218704 (1980-08-01), Netravali et al.
patent: 4307420 (1981-12-01), Ninomiya et al.
patent: 4437119 (1984-03-01), Matsumoto et al.
patent: 4562468 (1985-12-01), Koga
patent: 4620225 (1986-10-01), Wendland et al.

Affiliated with

Also associated with

Rating

Method of coding a video signal whereby pictures can be reproduc 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 of coding a video signal whereby pictures can be reproduc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of coding a video signal whereby pictures can be reproduc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-445449