Quantization parameter map for video encoding with constant perceptual quality
US12316857B2 · kind B2 · utility
0Cited by
0References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2020 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Dec 28, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/196
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A processing apparatus and video encoding method are provided which include receiving a portion of a video sequence and determining complexities for blocks of pixels of the portion of the video sequence. Quantization parameter values for corresponding blocks of pixels are selected based on complexities of the corresponding blocks and visually perceived coding artifacts of the corresponding blocks produced by the quantization parameter values. The blocks of pixels are encoded, using the selected quantization parameter values. The blocks of pixels are decoded and the portion of the video sequence is provided for display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.