Local motion compensated temporal noise reduction with sub-frame latency
US10735769B2 · kind B2 · utility
2Cited by
1References
23Claims
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Key dates
| Filing date | Sep 25, 2018 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques related to temporal noise reduction in captured video are discussed. Such techniques include performing motion estimation on a portion of a downsampled current frame performed during the downsampling of the current frame, replacing one or more of the resultant motion vectors based on confidence scores of the resultant motion vector, and blending the current frame and a temporally previous frame to generate a temporally filtered current frame. The temporally filtered current frame may be displayed to a user and/or encoded to generate a bitstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.