Method and an apparatus for inter prediction decoding with selective use of inverse quantization and inverse transform
US9137532B2 · kind B2 · utility
0Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2014 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jun 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for decoding a video using an inter prediction. The method identifies one or more conditions for enabling an inverse quantization and an inverse transform, and selectively performs, based on the identified conditions, at least one of: skipping both of the inverse quantization and the inverse transform for the obtained residual data; inversely quantizing the obtained residual data and skipping the inverse transform for the inversely quantized residual data; and inversely quantizing and then inversely transforming the obtained residual data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.