Video encoding and decoding methods based on scale and angle variation information, and video encoding and decoding apparatuses for performing the methods
US9693076B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 7, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Aug 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/537
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video encoding and decoding methods and apparatuses for performing the methods thereof are provided. The video encoding method includes: determining a region in a current image having a change in at least one of a scale and an angle with respect to a reference image; generating variation information representing a variation in at least one of the scale and the angle between the region in the current image and a reference region in the reference image corresponding to the region in the current image; and encoding residual information representing a difference between a predicted sample value from the reference image and a sample value of the current image based on the generated variation information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.