Method of image signal encoding by orthogonal transformation

Details Method of image signal encoding by orthogonal transformation Method of image signal encoding by orthogonal transformation

1987-04-20

1988-07-12

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358135, H04N 712

Patent

active

047573830

ABSTRACT:
A method of image signal encoding by orthogonal transformation comprises the steps of carrying out orthogonal transformation of two-dimensional image signals on the basis of a predetermined orthogonal function, arranging transformed signals obtained by the orthogonal transformation in the order of sequency of the orthogonal function, and encoding the transformed signals respectively with an intrinsic code length. The transformed signals are classified into groups each of which is composed of the signals corresponding to approximately equal spatial frequencies. The code length is adjusted to a common value for each of the groups on the basis of values of the transformed signals in each of the groups.

REFERENCES:
patent: 4134134 (1979-01-01), Lux
patent: 4580162 (1986-04-01), Mori
patent: 4656500 (1987-04-01), Mori

Affiliated with

Also associated with

Rating

Method of image signal encoding by orthogonal transformation 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 image signal encoding by orthogonal transformation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of image signal encoding by orthogonal transformation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-667840