Video coding device, method, and apparatus and inter-frame mode selection method and apparatus therefor
US10798388B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2019 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Jan 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/503
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An initial value of a current depth Depth is 1, and an inter-frame mode selection method includes: S701: if calculation of a coding overhead of coding a coding unit CUDepth is to be skipped, invoking S703 to S705; and if the calculation is not to be skipped, invoking S702 to S705; S702: determining a current optimum coding mode and coding overhead of the coding unit CUDepth; S703: dividing the coding unit CUDepth into multiple coding subunits having a depth Depth+1, and recursively performing S701 to S705 until the depth of the coding subunit reaches a preset maximum depth or satisfies a division stopping condition; S704: comparing a sum of coding overheads of the multiple coding subunits with the current coding overhead of the coding unit CUDepth; and S705: determining that a mode corresponding to the smaller one in S704 is an optimum coding mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.