Facade illumination removal
US8938119B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2012 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Jul 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image comprising color pixels with varying illumination is selected. Instances of a repeating pattern in the image are determined. Illumination values for illuminated pixels at locations within instances of the repeating pattern are calculated based on pixel intensities of non-illuminated pixels at corresponding locations in other instances of the repeating pattern. The illumination variation is removed from the illuminated pixels based on the calculated illumination values to produce enhanced pixels. Color from the non-illuminated pixels at the corresponding locations in other instances of the repeating pattern is propagated to the enhanced pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.