Systems and methods for relating images to each other by determining transforms without using image acquisition metadata
US9141880B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Oct 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/757
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for relating images to each other by determining transform functions between the images and the three-dimensional world coordinate system of the object depicted in the image, without using image acquisition metadata are disclosed. Points of interest are independently selected on each image. An initial transform function is applied to transform the points in the plane of one image to the plane of the other image. A Gaussian Mixture Model is then iteratively applied to the points to determine a best match, which then provides adjustments to the argument values of the transform function which is again applied to the points of interest on each image. This process repeats until the argument values converge to provide the resulting transform function. The resulting function can then be used to identify objects in the images in three dimensional space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.