Device for calculating positional data of standard points of photogrammetric target
US6628803B1 · kind B1 · utility
9Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1999 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Nov 26, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C11/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A three points range of high brightness and a four points range of high brightness in a photographed image are selected. It is checked if an identical end point is shared by the three and four points range selected. It is checked if a center of gravity corresponding to the identical end point, a center of gravity corresponding to another end point of the three points rage opposite to the identical end point, and a center of gravity corresponding to another end point of the four points range opposite to the identical end point, meet a positional relationship between standard points of a target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.