A robust real-time laser measurement method based on noncoding parallel multi-line

Chenbo Zhang; Haihua Cui; Wei Yin; Liu Yang

doi:10.1117/12.2247709

24 November 2016 A robust real-time laser measurement method based on noncoding parallel multi-line

Chenbo Zhang, Haihua Cui, Wei Yin, Liu Yang

Proceedings Volume 10023, Optical Metrology and Inspection for Industrial Applications IV; 1002321 (2016) https://doi.org/10.1117/12.2247709
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Single line scanning is the main method in traditional 3D hand-held laser scanning, however its reconstruction speed is very slow and cumulative error is very large. Therefore, we propose a method to reconstruct the 3D profile by parallel multi-line 3D hand-held laser scanning. Firstly, we process the two images that contain multi-line laser stripes shot by the binocular cameras, and then the laser stripe centers will be extracted accurately. Then we use the approach of stereo vision principle, polar constraint and laser plane constraint to match the laser stripes of the left image and the right image correctly and reconstruct them quickly. Our experimental results prove the feasibility of this method, which improves the scanning speed and increases the scanning area greatly.

Citation Download Citation

Chenbo Zhang, Haihua Cui, Wei Yin, and Liu Yang "A robust real-time laser measurement method based on noncoding parallel multi-line", Proc. SPIE 10023, Optical Metrology and Inspection for Industrial Applications IV, 1002321 (24 November 2016); https://doi.org/10.1117/12.2247709

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