Logical intra mode naming in HEVC video coding
US10567795B2 · kind B2 · utility
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Key dates
| Filing date | Nov 3, 2015 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Nov 3, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus of using logical mode numbers during both prediction and coding in the bit stream, such as for high efficiency video coders (HEVC). These logical intra mode numbers are sorted based on angle which as a result leads to improved coding designs with fewer and smaller look-up tables, and a small gain in coding efficiency. Furthermore, by using this type of naming, the number of most probable modes (MPMs) can be readily extended since no additional tables are required. The use of three MPMs achieves a larger gain of 0.25% and 0.31% for the AI_HE and AI_LC cases, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.