Distortion correcting sensors for diagonal collection of oblique imagery
US9071732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2014 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Jan 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vehicle collects oblique imagery along an intercardinal nominal heading using rotated camera-groups with distortion correcting electronic image sensors that align projected pixel columns or rows with a pre-determined direction on the ground, thereby improving collection quality, efficiency, and/or cost. In a first aspect, the camera-groups are rotated diagonal to the nominal heading. In a second aspect, the distortion correcting electronic image sensors align projected pixel columns or rows with a pre-determined direction on the ground. In a third aspect, the distortion correcting electronic image sensors are rotated around the optical axis of the camera. In a fourth aspect, cameras collect images in strips and the strips from different cameras overlap, providing large-baseline, small-time difference stereopsis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.