Image alignment method and image alignment system
US9147118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2013 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | May 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image alignment method includes steps of receiving a first image and a second image; scaling the first image and the second image by a ratio to generate a first downsized image and a second downsized image respectively; determining a first offset between the first downsized image and the second downsized image; selecting a first saliency region and a second saliency region from the first downsized image and the second downsized image; determining a second offset between a first sub-region within the first image and a second sub-region within the second image, the first sub-region and the second sub-region corresponding to the first saliency region and the second saliency region respectively; determining a final offset according to the ratio, the first offset and the second offset; and aligning the first image and the second image by the final offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.