Chroma interpolation method and filter device using the method
US10230990B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Mar 2, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Feb 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/587
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A chroma interpolation method, including: 1) determining a pixel accuracy for interpolation; 2) determining coordinate positions of interpolated fractional-pel pixels between integer-pel pixels; and 3) performing two-dimensional separated interpolation on the interpolated fractional-pel pixels by an interpolation filter according to the coordinate positions. The invention also provides a filter device using the above method for chroma interpolation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.