Range finder and method
US7236256B2 · kind B2 · utility
13Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Dec 21, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/2509
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A linearly polarized light projector system projects linearly polarized light onto a subject. While polarizing filters are used for removing light specular-reflected on the subject, a reflected image after removal of the specular-reflected light is captured by image input systems different in view point. Even in the case where the subject is glossy, the number of points for measuring the shape of the subject is increased and range images improved in measurement accuracy can be acquired collectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.