Image analysis – Image compression or coding – Transform coding
Patent
1997-11-12
1999-10-12
Tran, Phuoc
Image analysis
Image compression or coding
Transform coding
358432, G06K 936, G06K 946
Patent
active
059664703
ABSTRACT:
A coding apparatus for image compression which includes a transformer that transforms image data into a plurality of transform coefficients arranged in a matrix; a quantizer that quantizes each of the transform coefficients into a coefficient data of a predetermined number of bits; a data divider that divides the coefficient data into a fixed-length data part and a variable-length data part and a variable-length encoder that encodes the variable-length data part into a variable-length code.
REFERENCES:
patent: 4509038 (1985-04-01), Hirano
patent: 5073821 (1991-12-01), Juri
patent: 5109451 (1992-04-01), Aono et al.
patent: 5272528 (1993-12-01), Juri et al.
patent: 5289548 (1994-02-01), Wilson et al.
patent: 5295203 (1994-03-01), Krause et al.
patent: 5313203 (1994-05-01), Suu et al.
patent: 5404139 (1995-04-01), Bhandari et al.
patent: 5424733 (1995-06-01), Fimoff et al.
patent: 5432512 (1995-07-01), Park
W.B. Pennebaker, T.L. Mitchel, YPEG Still Image Date Compression Standard, Van Nostrand Reinhold, N.-Y., 1993, pp. 441-446.
Bannai Tatsushi
Miyashita Mitsuhiro
Matsushita Electric - Industrial Co., Ltd.
Tran Phuoc
LandOfFree
Coding apparatus for image compression does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coding apparatus for image compression, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coding apparatus for image compression will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-660048