Video encoding device and encoding method thereof, video decoding device and decoding method thereof, and directional intra-prediction method to be used thereto
US9473777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2010 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Feb 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/593
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a video encoding apparatus and encoding method thereof, video decoding apparatus and decoding method thereof, and directional intra-prediction method to be used therefor. The video encoding apparatus includes a main mode search unit for searching for main mode for a current block from among directional intra-prediction modes; a sub mode search unit for searching for sub modes formed by inclining indicated orientation of found main mode by main mode search unit by a predetermined offset in both clockwise and counterclockwise directions; a predicted block generator for generating predicted block of the current block from neighboring blocks of the current block based on found main mode by the main mode search unit and found sub modes by the sub mode search unit; a differentiator for calculating differential between the current block and the predicted block; and an encoder for encoding calculated differential by the differentiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.