Image analysis – Image compression or coding – Including details of decompression
Reexamination Certificate
2005-04-12
2005-04-12
Couso, Yon J. (Department: 2625)
Image analysis
Image compression or coding
Including details of decompression
C382S232000
Reexamination Certificate
active
06879725
ABSTRACT:
Provided is a method, system, program, and data structure for decompressing a compressed data stream whose decoded output comprises lines of two-dimensional data or other data whose decoding depends upon previously decoded data and where the desired output is only part of sequentially decoded output. Received are a compressed data set, at least one pointer to a location in the compressed data stream whose decoded output comprises a location on a line of data, and decoding information for each received pointer that enables decoding from a point within the compressed data stream addressed by the pointer. For each received pointer, the following steps are performed: (i) accessing the location in the compressed data stream addressed by the pointer in the reentry data set; and (ii) using the decoding information in the reentry data set to decode compressed data from the accessed location.
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Mitchell Joan LaVerne
Rijavec Nenad
Couso Yon J.
International Business Machine Corporation
Konrad Raynes & Victor LLP
Victor David W.
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