Local feature cameras for structure from motion (SFM) problems with generalized cameras
US9135715B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jun 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/689
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for extraction of 3D geometry from a plurality of generalized camera images by a device that comprises an electronic circuit are provided. Methods include identifying an x and y coordinate, an orientation, and a scale for each of one or more feature locations in each of the generalized camera images, extracting a local image feature at each feature location, generating a feature camera centered on each feature location, identifying groups of feature cameras providing consistent triangulation opportunity, and triangulating each identified feature camera group by finding the 3D point that minimizes an error term.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.