Tarp filter
US7203371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2005 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Nov 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/007
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.