Method and apparatus for encoding and decoding images by adaptively using an interpolation filter
US8897360B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 28, 2010 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Jun 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method and to an apparatus for encoding and decoding images by adaptively using an interpolation filter in consideration of the characteristics of input images. The apparatus of the present invention comprises a prediction block-generating unit including a selector for adaptively selecting an interpolation filter for generating a prediction block in consideration of the context information of an input image block, a filter bank in which groups of interpolation filters are stored in correspondence with the context information, and a specific interpolation filter which is selected from the filter bank in accordance with the control of the selector, and which interpolates a reference image block associated with the input image block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.