Image prediction based on primary color grading model
US8731287B2 · kind B2 · utility
11Cited by
14References
15Claims
0Family size
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Key dates
| Filing date | Apr 13, 2012 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Apr 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Inter-color image prediction is based on color grading modeling. Prediction is applied to the efficient coding of images and video signals of high dynamic range. Prediction models may include a color transformation matrix that models hue and saturation color changes and a non-linear function modeling color correction changes. Under the assumption that the color grading process uses a slope, offset, and power (SOP) operations, an example non linear prediction model is presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.