Region-of-interest encoding enhancements for variable-bitrate mezzanine compression
US9749659B2 · kind B2 · utility
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Key dates
| Filing date | Jun 6, 2016 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jun 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/186
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A specification defining allowable luma and chroma code-values is applied in a region-of-interest encoding method of a mezzanine compression process. The method may include analyzing an input image to determine regions or areas within each image frame that contain code-values that are near allowable limits as specified by the specification. In addition, the region-of-interest method may comprise then compressing those regions with higher precision than the other regions of the image that do not have code-values that are close to the legal limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.