System and method for variable encoding based on image content

Details System and method for variable encoding based on image content System and method for variable encoding based on image content

1996-05-10

2000-02-22

Couso, Jose L.

Image analysis

Image compression or coding

Adaptive coding

382232, 348390, 3582611, G06K 936

Patent

active

060289627

ABSTRACT:
A system and method for efficient image encoding begins by loading a series of image blocks. A current block is compared with an immediately preceding image block for coincidence, and coded as matching or nonmatching based on the comparison results. The system further compares the nonmatching image blocks with a stack containing a list of the most recently encountered image blocks. Image blocks matching an entry in the list are coded by reference to the appropriate entry in the list. In the event a match is still unavailing, the system determines if the image blocks may be categorized as a bilevel text block, a bilevel image block, a block containing only one gray pixel, or a block containing multiple gray pixels. Each nonmatching block is classified according this classification criteria.

REFERENCES:
patent: 4546385 (1985-10-01), Anastassiou
patent: 4568983 (1986-02-01), Bobick
patent: 4668995 (1987-05-01), Chen et al.
patent: 5408542 (1995-04-01), Callahan
patent: 5592297 (1997-01-01), Van Dorsselaer

Affiliated with

Also associated with

Rating

System and method for variable encoding based on image content 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 and method for variable encoding based on image content, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for variable encoding based on image content will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-527091