System and method for reducing specular reflection
US8320702B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2006 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Sep 1, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An imaging unit programmed to reduce specular reflection in a captured image and improve the interpretation of decodable information within the image. The imaging unit is programmed to scan a predetermined region within the image that is susceptible to specular reflection, evaluate the pixel values within the region against a threshold value that is representative of specular reflection, and then replace the pixel value found to represent specular reflection with replacement pixel values that do not corrupt interpretation of the decodable information in the predetermined region. The threshold value and replacement values may be determined on an ad hoc basis and stored in local memory, or calculated for each captured image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.