Performing deblocking on pixel data
US7983505B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2007 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Mar 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, the present invention includes a method for receiving pixel data for a portion of an image including a blocking artifact, calculating an artifact strength based on a difference between a two pixels on opposite sides of the blocking artifact, performing a local adaptability check using the artifact strength and values multiple pixels on the opposite sides, performing deblocking based on a result of the local adaptability check, applying a soft threshold to the artifact strength to adjust a value of the artifact strength, and re-aligning one or more pixels on the opposite sides based on the original value of the pixels and a pixel index value. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.