Apparatuses and methods for providing quantized coefficients for video encoding
US9491475B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Feb 1, 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 in a signal are disclosed. An apparatus may comprise a quantization block that may be configured to generate a plurality of candidates for each of a plurality of coefficients. The quantization block may further generate a respective plurality of arcs based, at least in part, on the plurality of candidates. The quantization block may be configured to determine which of the plurality of arcs has a lowest cost using a trellis optimization technique. Fractional bit estimations may be used to calculate rate, and inverse lambda may be used to calculate candidate coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.