Image encoding/decoding method and apparatus, and recording medium having stored bitstream thereon
US12081774B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 29, 2020 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Mar 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a video decoding method including determining a zero-out width threshold and a zero-out height threshold for distinguishing between a transform coefficient coding region and a zero-out region of a current block according to a size of the current block, determining the transform coefficient coding region and the zero-out region of the current block according to the zero-out width threshold and the zero-out height threshold, acquiring transform coefficient information of the transform coefficient coding region from a bitstream and determining a level of a transform coefficient of the transform coefficient coding region according to the transform coefficient information, determining a level of a transform coefficient of the zero-out region as 0 without acquiring transform coefficient information, and reconstructing the current block by inversely transforming the transform coefficient of the current block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.