Encoder and associated signal processing method
US12120311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2023 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/96
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an encoder including a quantization circuit, an encoding circuit, an energy parameter calculation circuit and a quantization parameter determination circuit. The quantization circuit is configured to perform quantization operations on a plurality of CTUs in image data in sequence to generate quantized data respectively corresponding to the plurality of CTUs. The encoding circuit is configured to perform encoding operations on the quantized data of the plurality of CTUs in sequence to generate encoded data. The energy parameter calculation circuit is configured to receive the image data, and calculate a plurality of energy parameters respectively corresponding to the plurality of CTUs in the image data. The quantization parameter determination circuit is configured to determine a plurality of quantization parameters of the plurality of CTUs according to at least a portion of the plurality of energy parameters, for the quantization circuit to perform the quantization operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.