Image decoding apparatus

Details Image decoding apparatus Image decoding apparatus

2005-02-10

2008-08-26

Bella, Matthew C. (Department: 2624)

Image analysis

Image compression or coding

Lossless compression

C382S233000, C382S238000, C382S247000, C382S240000, C382S246000, C341S107000

Reexamination Certificate

active

07418146

ABSTRACT:
Coded data are inputted from a stream analyzing unit to an entropy decoding unit. A group of peripheral information registers stores peripheral information on a target pixel for estimating a context used for arithmetic decoding of the coded data. Based on the peripheral information stored in the group of peripheral registers, a context estimation unit estimates a context and delivers the estimated context to an arithmetic decoding unit. The arithmetic decoding unit decodes the coded data based on a context label, then derives a decision and supplies the decision to an inverse quantization unit. The peripheral information stored in the group of peripheral registers is updated by a decoding result of the arithmetic decoding unit in the same cycle as the decoding.

REFERENCES:
patent: 6014463 (2000-01-01), Hirabayashi
patent: 6263024 (2001-07-01), Matsumoto
patent: 2001/0024524 (2001-09-01), So et al.
patent: 2003/0007697 (2003-01-01), Kadono
patent: 2001-189661 (2001-07-01), None
patent: 2003-032498 (2003-01-01), None

Affiliated with

Also associated with

Rating

Image decoding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image decoding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image decoding apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4013213