Method of determining reference features for use in an optical object initialization tracking process and object initialization tracking method
US8805002B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Dec 12, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of determining reference features for use in an optical object initialization tracking process is disclosed, said method comprising the following steps: a) capturing at least one current image of a real environment or synthetically generated by rendering a virtual model of a real object to be tracked with at least one camera and extracting current features from the at least one current image, b) providing reference features adapted for use in an optical object initialization tracking process, c) matching a plurality of the current features with a plurality of the reference features, d) estimating at least one parameter associated with the current image based on a number of current and reference features which were matched, and determining for each of the reference features which were matched with one of the current features whether they were correctly or incorrectly matched, e) wherein the steps a) to d) are processed iteratively multiple times, wherein in step a) of every respective iterative loop a respective new current image is captured by at least one camera and steps a) to d) are processed with respect to the respective new current image, and f) determining at least …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.