Apparatuses and methods for adjusting coefficients using dead zones
US9154782B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Sep 16, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Oct 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatuses and methods for adjusting coefficients for use in video encoding are described. An example apparatus may include an encoder that may be configured to receive transform coefficients and adjust selected ones of the transform coefficients (e.g. reset the selected ones to zero) based on a comparison with a threshold. The adjusted coefficients may then be quantized, which may result in effectively increasing a QP range of the encoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.