Perspective correction using a reflection
US8774556B2 · kind B2 · utility
0Cited by
14References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Jul 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20172
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques and tools are described for performing perspective correction using a reflection. Reflective properties of a surface being photographed can be used to determine a rotation of the device taking the photograph relative to the surface. Light sourced or produced by the device can be used to create a reflection spot in the picture. A position of the reflection spot within the picture is calculated and used to determine the rotation. The rotation can be used for performing perspective correction on the picture, or on another picture taken by the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.