Method and system for motion field backward warping using neighboring blocks in videos
US9253486B2 · kind B2 · utility
9Cited by
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16Claims
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Key dates
| Filing date | Jan 16, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Jan 3, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0085
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Videos of a scene are processed for view synthesis. The videos are acquired by corresponding cameras arranged so that a view of each camera overlaps with the view of at least one other camera. For each current block, disparity vectors are obtained from neighboring blocks. A depth block is based on a corresponding reference depth image and the disparity vectors. A prediction block is generated based on the depth block using backward warping of a motion field. Then, predictive coding for the current block using the prediction block. Backward mapping can also be performed in the spatial domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.