Tarp filter

Details Tarp filter Tarp filter

2007-04-10

2007-04-10

Dang, Duy M. (Department: 2624)

Image analysis

Image compression or coding

Adaptive coding

C382S232000, C382S238000, C382S251000

Reexamination Certificate

active

11287671

ABSTRACT:
Systems and methods for performing adaptive filtering are disclosed. The present invention generates probabilities that can be used in an encoder, such as an arithmetic encoder and generates those probabilities in a computationally efficient manner. Probabilities of previously encoded coefficients are employed, effectively, in generating probabilities of the coefficients without regard to directional information. Thus, a large amount of information is adaptively and efficiently used in generating the probabilities. For the coefficients, the probability is computed based at least partly on at least one probability of a previously computed probability of a neighboring coefficient. Then, the coefficients are encoded using those computed probabilities.

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