Image warp
US7613362B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2007 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Aug 7, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/32
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method for warping first and second overlapping images includes selecting a first set of points in a first image, the first set of points being located in an overlap region between first and second images; selecting a set of tie points in the second image, including individual tie points each of which correlates to a point in the first set of points; selecting from the first image a patch including at least one point from the first set of points and at least one neighboring point; performing shadow detection to determine a percentage of the patch exceeding a predetermined percentage, thereby indicating a shadow; if so, eliminating the at least one point so that it is not correlated with any of the individual tie points, thereby avoiding correlating the shadow in the first image to a shadow in the second image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.