Method and apparatus for encoding video based on internal bit depth increment, and method and apparatus for decoding video based on internal bit depth increment
US9049450B2 · kind B2 · utility
8Cited by
7References
44Claims
0Family size
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Key dates
| Filing date | Apr 5, 2011 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Nov 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/96
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of encoding a video based on a bit depth increment, the method including: determining a scaling method so that a dynamic range, which is based on a bit depth of a restored image decreased by de-scaling that is performed to decrease the bit depth increment, is identical to a dynamic range based on a bit depth of an input image, and generating an internal image having the bit depth increment by applying the scaling method to pixel values of the input image; and determining and encoding coding units having a tree structure, for each maximum coding unit of the internal image having the bit depth increment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.