System and method of video coding quantization and dynamic range control
US9749633B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2013 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Oct 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/625
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus and systems for processing video blocks. The method including transforming, via a transform unit, the video residual data using a single one-dimensional transform to generate a first set of coefficients associated with the video block; quantizing, via a quantization unit, the first set of coefficients to generate a second set of quantized coefficients, wherein the method for processing the video residual data includes bit-shifting any of the first and second sets of coefficients; entropy coding the second set of quantized coefficients after the bit-shifting; and transmitting the entropy coded second set of quantized coefficients. In certain embodiments, the bit shifting may include integer and/or fractional bit shifting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.