Methods and apparatus for constrained transforms for video coding and decoding having transform selection
US9277245B2 · kind B2 · utility
5Cited by
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29Claims
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Key dates
| Filing date | Mar 4, 2011 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Mar 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/46
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are provided for constrained transforms for video coding and decoding having transform selection. An apparatus includes a video encoder for encoding at least a block in a picture by selecting a particular transform from at least a first transform and a second transform that is different than the first transform, and applying the particular transform to a residue of the block. Transform coefficients for the second transform are selected responsive to a deblocking filter that is present in the video encoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.