Detection of artifacts resulting from image signal decompression
US7680355B2 · kind B2 · utility
16Cited by
11References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2005 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Jan 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method includes making a first determination as to whether a current pixel has a value which reflects a mosquito noise artifact, and determining whether to apply a filtering process at the current pixel based on a result of the first determination. In addition, or alternatively, a method includes making a second determination as to whether a current pixel has a value which reflects a ringing artifact, and determining whether to apply a filtering process at the current pixel based on a result of the second determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.