Method and apparatus for accurate alignment of images in digital imaging systems by matching points in the images corresponding to scene elements
US7006086B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Oct 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/596
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A digital imaging system is described that facilitates the location of anchors or targets in images of a scene. In one aspect, the digital imaging system makes use of differences as between the properties of the surfaces of the targets and the properties of the surfaces of the objects that are to be mensurated, reconstructed, etc., to facilitate providing uniform illumination of the targets when recording a set of images of the scene, thereby reducing noise that may arise in connection with determining the locations of the targets if they were illuminated by structured illumination, while contemporaneously providing that the objects can be illuminated by structured illumination when the images are recorded. In this aspect, the digital imaging system can use the positions of the targets in the images to relate a local coordinate system associated with the image set to a global coordinate system. In a second aspect, the digital imaging system makes use of one or more of a plurality of algorithms to determine the locations of targets in the images of the scene in the respective objects. In this aspect, the digital imaging system records two sets of images, including a baseline set and…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.