Picture encoding and decoding methods and apparatuses, and picture encoding and decoding system
US10681350B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Mar 18, 2017 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Mar 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/98
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are picture encoding and decoding methods and apparatuses, and a picture encoding and decoding system. The picture encoding method includes: determining an adjustment factor according to pixel sampling values of a video picture; converting the video picture according to the adjustment factor, and encoding the converted video picture; and writing the adjustment factor into a bitstream obtained by encoding the converted video picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.