Adaptive filter
US7136536B2 · kind B2 · utility
6Cited by
32References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2005 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Dec 13, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An adaptive filter that, in one embodiment, filters rows of pixels of an image in a vertical direction, stores the results in row vectors, and then filters the row vectors in the horizontal direction, and displays the results or stores the results for later display. Coefficients of a reference filter are modified based on the output from the reference filter through a table-lookup process that accesses tables of modified filter coefficients. The output of the modified filter is added to a delayed version of the input to provide the adaptive filter output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.