Filtering method and device in image processing
US9286660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jun 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments provide a filtering method and device in image processing. The device includes: a dividing unit to divide a first filtering window into blocks; a determining unit to determine a filtering window area according to relevance between a central block and other non-central blocks in the blocks; and a filtering unit to perform filtering processing on an image in the determined filtering window area. With the method and device of the embodiments, a boundary of an object will not be crossed in filtering, and in removing noise, information on other objects will not be introduced to affect the result of filtering. A filtering window size may be determined while filtering is performing, which may be carried out in one path, avoiding time delay resulting from execution of two paths of a conventional method where an edge is detected and then the size of a filtering window is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.