System and method for using texture landmarks for improved markerless tracking in augmented reality applications
US7616807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2006 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Jan 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/74
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of tracking a pose of a moving camera includes receiving a first image from a camera, receiving a sequence of digitized images from said camera, recording, for each of said sequence of digitized images, the pose and 2D correspondences of landmarks, reconstructing a location and appearance of a 2-dimensional texture patch from 2D correspondences of the landmarks by triangulation and optimization, computing back-projection errors by comparing said reconstructed texture patch with said first received image; and reconstructing said location and appearance of said 2-dimensional texture patch from the 2D correspondences of the landmarks of said sequence of digitized images by triangulation and optimization after eliminating those landmarks with large back-projection errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.