Image analysis – Image enhancement or restoration – Image filter
Reexamination Certificate
2008-04-29
2011-11-15
Patel, Kanjibhai (Department: 2624)
Image analysis
Image enhancement or restoration
Image filter
C382S238000, C375S240120
Reexamination Certificate
active
08059909
ABSTRACT:
An adaptive filter is applied to samples in an initial pattern of samples. The samples in the initial pattern correspond to a subset of the image pixels which are to be predicted using the samples. A level value of each sample in the pattern is varied. The level value corresponds to the intensity/signal value of the sample, and may have a strong effect on the prediction power of the samples. A first prediction pattern (i.e., the prediction signal corresponding to the sampling pattern) is generated from the samples. A sample movement process is performed on a current sample in the first prediction pattern to change a current position of the current sample in the first prediction pattern. A local prediction of pixels influenced by the sample is updated if the sample's position is changed. A sample removal process is performed on the current sample to remove the sample from the first pattern if a criteria is satisfied. A local prediction of pixels is updated if the current sample is removed. A second prediction pattern (i.e., the prediction signal corresponding to the new/second sampling pattern) is generated from the samples remaining in the first pattern. The second pattern is output.
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Blakely , Sokoloff, Taylor & Zafman LLP
Patel Kanjibhai
Sony Corporation
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