Image analysis – Image compression or coding
Reexamination Certificate
2002-07-18
2009-12-08
Le, Brian Q (Department: 2624)
Image analysis
Image compression or coding
C382S250000
Reexamination Certificate
active
07630563
ABSTRACT:
A method of losslessly decoding signals representing an image is claimed. A lossy compressed data file and a residual compressed data file are received. The lossy compressed data file is separated into DC coefficients and AC coefficients, and decoded, separately, to the determine DC values and the AC values. The DC values and the AC values are inverse quantized to produce lossy, decompressed data. The residual compressed data file is decoded to produce a residual decompressed data. The lossy decompressed frequency data is combined with the residual decompressed data to produce a lossless data file, wherein the lossless data file is substantially the same as the original image.
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Irvine Ann C.
Thyagarajan Kadayam
Evans Matthew J.
Le Brian Q
Minhas Sandip S.
QUALCOMM Incorporated
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