TOF camera calibration device and method
US11750796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2022 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Feb 17, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This application provides a calibration device and a method. The calibration device includes calibration boards arranged at intervals and having board surface parallel to each other, a guide rail disposed at peripheries of the calibration boards, TOF cameras, and a controller. Support frames are arranged at intervals on the guide rail, and the TOF cameras are mounted on the guide rail using the support frames. Distances between the calibration surfaces and the corresponding TOF cameras are different. The controller is connected to the guide rail and the TOF cameras, and configured to send a first set of timing control signals to control the guide rail to carry the TOF cameras to move along the guide rail, and send a second set of timing control signals to the TOF cameras to control the TOF cameras to work simultaneously or alternately to measure distance values between the TOF cameras and the corresponding calibration boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.