Multi-line array laser three-dimensional scanning system, and multi-line array laser three-dimensional scanning method
US10267627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2016 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Jan 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2210/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a multi-line array laser three-dimensional scanning system and a multi-line array laser three-dimensional scanning method, the system performs precise synchronization and logic control of the multi-line array laser three-dimensional scanning system by a programmable gate array FPGA; employs a line laser array as the projection pattern light source, sends trigger signals to a stereoscopic image sensor, a inertial sensor and a line laser array by FPGA; wherein a upper computer receives image pairs taken by the stereoscopic image sensor, and codes, decodes as well as performs a three-dimensional reconstruction for the laser line array patterns in the image pairs, performs a three-dimensional reconstruction for the feature points on the surface of the measured object, and matches and aligns the three-dimensional feature points at different times; the system predicts and corrects the matching calculation by employing a hybrid sensing technology, which registers and stitches the time domain laser three-dimensional scanning data, meanwhile evaluates the error level in real time and feeds it back to an error feedback controller to obtain an adjustment instruc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.