Prediction method and apparatus for chroma component of image using luma component of image
US9674521B2 · kind B2 · utility
24Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Jun 28, 2012 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Jul 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/593
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are a method and an apparatus for predicting a chrominance signal from a luminance signal by using a correlation between the luminance and chrominance signals. A method of predicting a chrominance component image generates a down-sampled luminance signal matching a chrominance signal by independently applying various down-sampling methods according to a location of a luminance signal, and predicts a chrominance signal from the down-sampled luminance signal, while considering a size of a luminance prediction unit and a size of a chrominance prediction unit corresponding to each other according to a color format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.