Image analysis – Image compression or coding – Adaptive coding
Reexamination Certificate
2004-11-12
2008-10-28
Alavi, Amir (Department: 2624)
Image analysis
Image compression or coding
Adaptive coding
C382S253000
Reexamination Certificate
active
07444030
ABSTRACT:
Methods, systems, and computer programs for encoding images are described. In one aspect, quantized frequency domain vectors are sequentially generated from a sequence of blocks of the image. Each quantized frequency domain vector includes a set of quantized forward transform coefficients that are derived from a respective image block. For each successive quantized frequency domain vector, a current input capacity level of a buffer is determined and the quantized frequency domain vector is modified to increase compressibility when the current input capacity level is determined to be below a prescribed threshold. Modified and unmodified quantized frequency domain vectors are encoded into a sequence of encoded image blocks. The sequence of encoded image blocks is stored in the buffer.
REFERENCES:
patent: 5734755 (1998-03-01), Ramchandran et al.
patent: 5768481 (1998-06-01), Chan et al.
patent: 6118817 (2000-09-01), Wang
patent: 6233359 (2001-05-01), Ratnakar et al.
patent: 6252994 (2001-06-01), Nafarieh
patent: 6298169 (2001-10-01), Guenter
patent: 6310915 (2001-10-01), Wells et al.
patent: 6563955 (2003-05-01), de Queiroz
patent: 6577772 (2003-06-01), Lee
patent: 6658157 (2003-12-01), Satoh et al.
patent: 6804299 (2004-10-01), Moni et al.
patent: 6895050 (2005-05-01), Lee
patent: 6956901 (2005-10-01), Boroczky et al.
patent: 7130348 (2006-10-01), Kerofsky
patent: 7200276 (2007-04-01), Mehrotra
patent: 7236640 (2007-06-01), Subramaniam et al.
patent: 7295610 (2007-11-01), Schoenblum
patent: 2003/0002581 (2003-01-01), Moni et al.
patent: 2003/0185252 (2003-10-01), Knee
patent: 2006/0104524 (2006-05-01), Reid et al.
patent: 0637891 (1994-04-01), None
patent: 1351519 (2003-10-01), None
J.C. McKinney et al., “ATSC Digital Television Standard”, Advanced Television Systems Committee, Doc. A/53, Oct. 4, 1995, pp. 34-38.
Clark, II Airell R.
Reid Donald M.
Alavi Amir
Micro)n Technology, Inc.
Ratner & Prestia
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