Total station with a calibration functionality for instrument errors
US11181370B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Nov 28, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30181
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A total station configured for receiving from a camera a first image captured in a first face and a second image captured in a second face, wherein in the second face the camera is rotated around the optical axis by between 170° and 190° compared to the first face, receiving at least one of an azimuthal angle pair and an elevative angle pair, said azimuthal angle pair comprising a first azimuthal angle and a second azimuthal angle, and said elevative angle pair comprising a first elevative angle a second elevative angle, matching the first image and the second image with a relative rotation and a relative translation, determining the relative rotation of the matched first image and second image, determining the relative translation of the matched first image and second image, based on the respective angle pair, the relative rotation, the relative translation, and determining an instrument error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.