Depth discontinuity-based method for efficient intra coding for depth videos
US10713805B2 · kind B2 · utility
1Cited by
2References
9Claims
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Key dates
| Filing date | Aug 1, 2016 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Aug 1, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for encoding depth map image involves dividing the image into blocks. These blocks are then classified into smooth blocks without large depth discontinuities and discontinuous blocks with large depth discontinuities. In the discontinuous blocks, depth discontinuities are represented by line segments and partitions. Interpolation-based intra prediction is used to approximate and compress the depth values in the smooth blocks and partitions. Further compression can be achieved with of depth-aware quantization, adaptive de-blocking filtering, scale adaptive block size, and resolution decimation schemes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.