Error correction method and device for line structured light 3D camera, computer device and computer-readable storage medium
US12394096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Mar 28, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An error correction method and device for a line structured light 3D camera. The method comprises: placing a 3D calibration plate at different positions in the field of view of the 3D camera, and allowing a relative motion to scan the 3D calibration plate to obtain multiple sets of point cloud data at different positions; processing the point cloud data and calculating corner coordinates of the 3D calibration plate corresponding to each set of point cloud data; constructing an error correction model by using an inclination angle, caused by an error, between a straight line along which the relative motion direction lies and a laser plane of the 3D camera as an error model correction parameter; calculating error correction model parameters according to a space vector constraint relationship between corner points; and applying the model to the point cloud data of a measured object to obtain distortion-free point cloud data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.