Method and handheld distance measurement device for indirect distance measurement by means of image-assisted angle determination function
US10187567B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2013 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Apr 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10028
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Some embodiments include determining geometrical data in a space, with a measurement sequence having a measurement of a first distance to a first target point by emitting a laser beam in a first emission direction, and a measurement of a second distance to a second target point by emitting a laser beam in a second emission direction. In some embodiments the geometrical data comprises a distance between the two target points and/or a solid angle between the first emission direction and the second emission direction. Some embodiments include detecting a series of images; relating the detected images to one another using image processing and using the at least one common image area; determining a distance between the mappings of the target points in the images put in relationship with one another; and determining the geometrical data on the basis of the distance between the mappings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.