Image analysis – Image compression or coding – Including details of decompression
Reexamination Certificate
2007-05-01
2007-05-01
Chen, Wenpeng (Department: 2624)
Image analysis
Image compression or coding
Including details of decompression
C382S251000, C382S244000
Reexamination Certificate
active
10335423
ABSTRACT:
Methods, apparatus and computer readable medium are described that compress and/or decompress a digital image in a lossless or a lossy manner. In some embodiments, a display controller may compress a digital image by generating a symbol for each pel of the digital image. In particular, the symbol may represent a pel via a match vector and a channel error vector. The match vector may indicate which quantized channels of the pel matched quantized channels of a previous pel. Further, the channel error vector may comprise a lossless or lossy channel for each quantized channel of the pel that did not match a corresponding quantized channel of the previous pel. The channel error may also comprise a lossless or lossy channel error for each quantized channel of the pel that matched a corresponding quantized channel of the previous pel.
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Dwyer Michael K.
Piazza Thomas A.
Chen Wenpeng
Ge Yuzhen
Yadav Ram P.
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