Methods and apparatus for registering and warping image stacks
US8923652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2012 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Nov 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/153
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A set of images is processed to modify and register the images to a reference image in preparation for blending the images to create a high-dynamic range image. To modify and register a source image to a reference image, a processing unit generates a correspondence map for the source image based on a non-rigid dense correspondence algorithm, generates a warped source image based on the correspondence map, estimates one or more color transfer functions for the source image, and fills the holes in the warped source image. The holes in the warped source image are filled based on either a rigid transformation of a corresponding region of the source image or a transformation of the reference image based on the color transfer functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.