Method and apparatus for restricting binary-tree split mode coding and decoding
US11218738B2 · kind B2 · utility
2Cited by
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17Claims
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Key dates
| Filing date | Sep 28, 2017 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Sep 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/96
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Binary tree split mode coding is performed while encoding digital video image blocks using a quad tree plus binary tree coding. The quadtree split can be represented by some combinations of horizontal and vertical binary tree split. Blocks are constrained to be split down to a minimum block size and with certain split constraints such that some redundant tree structures are avoided. Redundant syntax in coding the binary tree split mode syntax element is removed to provide coding efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.