Cross-component adaptive loop filtering for video coding
US11234010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2020 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An example device for decoding video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: determine a number of bits, k, used to represent a decimal value for a filter coefficient of a cross-component adaptive loop filter; determine that a dynamic range of the filter coefficient comprises (−(1<<(k−c))+1, (1<<(k−c))−1) for a value of c, c representing an offset value to the value of k, and ‘<<’ representing a bitwise left shift operator; decode a block of the video data; and performing cross-component adaptive loop filtering of the decoded block using the filter coefficient, the filter coefficient being within the dynamic range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.