Method and apparatus for reconstructing 360-degree image according to projection format
US11165958B2 · kind B2 · utility
13Cited by
3References
8Claims
0Family size
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Key dates
| Filing date | Apr 1, 2019 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Apr 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/45
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods and apparatuses for image data encoding/decoding. A method for decoding a 360-degree image includes the steps of: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; adding the generated prediction image to a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Therefore, the performance of image data compression can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.