Apparatuses and methods for optimizing rate-distortion costs in video encoding
US9794575B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Jun 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatuses and methods for optimizing rate-distortion costs of a signal are disclosed. An apparatus may include an encoder. The encoder may be configured to receive a video signal and provide a residual indicative of a difference between the video signal and a reconstructed video signal. The encoder may further be configured to perform a transform on the residual to provide a plurality of transform coefficients and rate-distortion optimize the plurality of transform coefficients in accordance with an HEVC state transition scheme to provide a rate-distortion optimized plurality of quantized coefficients. The encoder may further be configured to encode the plurality of quantized coefficients in accordance with context-adaptive binary arithmetic coding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.