System and process for color-balancing a series of oblique images
US8649596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2011 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Jan 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10032
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing system, comprising a computer running image processing software and selecting a series of color-balanced images to use as reference images. On an oblique image by image basis, the computer performs the following steps: (a) locate a portion(s) of a reference image(s) that overlaps the oblique image; (b) create multiple color-balancing transformations that approximately match a color distribution of the oblique image to a color distribution of overlapping portion(s) of the reference image(s); (c) transform pixels in the oblique image according to more than one of the multiple color-balancing transformations created for the oblique image; and (d) store the transformed pixel value in at least one of the oblique image or a copy of the oblique image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.