Method and apparatus for performing motion compensated temporal filtering in video encoding
US8160161B2 · kind B2 · utility
2Cited by
12References
18Claims
0Family size
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Key dates
| Filing date | Sep 18, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | May 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method (50) and apparatus (40) for reducing noise in a video signal calculates (53) a discrimination value of a filter based on a magnitude difference between a current frame and a prior frame of a sequence of frames and modifies (54) the current frame using the modified discrimination value. The output of the filter is calculated as follows:g(i,j,k)=f(i,j,k)±βwherein:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.