Method and system for filtering noises in an image scanned by charged particles
US8712184B1 · kind B1 · utility
5Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Mar 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/2817
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for filtering noises in an image scanned by charged particles includes steps of grouping pixels with similar types in the image into a plurality of pixel groups; and removing noises for each pixel group in the image according to a corresponding noise model to obtain the scanned image with better quality and/or contrast. A system for filtering noises in an image scanned by charged particles is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.