Image data encoding/decoding method and apparatus
US11936841B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2023 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Aug 8, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/96
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods and apparatuses for decoding an image. A method includes receiving a bitstream obtained by encoding the image; dividing a first coding block into a plurality of second coding blocks; generating a prediction block of a second coding block based on syntax information obtained from the bitstream; and reconstructing the second coding block based on the prediction block and a residual block of the second coding block, the residual block being obtained by performing a dequantization and an inverse-transform on quantized transform coefficients from the bitstream. The first coding block has a recursive division structure. The first coding block is divided based on at least one of a quad tree division, a binary tree division or a triple tree division.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.