Ranging method based on laser-line scanning imaging
US11620760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Oct 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/436
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a ranging method based on laser-line scanning imaging to effectively suppress interference of extreme weather on imaging. The method includes the following steps: acquiring priori reference images for a fixed laser-line scanning system, including respectively placing reference whiteboards at different distances, projecting line laser beams to the whiteboards, and acquiring the reference images by using a camera; placing a laser-line scanning device in a real scene, causing the laser-line scanning device to respectively emit line lasers at different angles, and acquiring an image at each scanning angle by using a camera; and performing fusion calculation on the acquired scanning image in the real scene and the priori reference images by using a ranging algorithm based on laser-line scanning, and extracting distance information of a surrounding object, to implement environment perception.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.