Identifying and correcting anomalies in an optical image
US9235881B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | May 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20224
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An embodiment of the invention provides an apparatus and a method. An intensity gradient between first and second optical image data of an optical image produced by an optical scanning device is determined. The first optical image data is a first optical image pixel and the second optical image data is a second optical image pixel. An intensity gradient image comprising a plurality of intensity gradient image pixels is determined, each intensity gradient image pixel representing the magnitude of an intensity gradient. One or more anomalies in the optical image in dependence on the magnitude of the intensity gradient being greater than or equal to a threshold value is identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.