Automated edge detection model for large irregular circular using a scanning approach

Sen Zhou; Lei Tao; Tong Liu; Jun Xiong

doi:10.1117/12.2605338

24 November 2021 Automated edge detection model for large irregular circular using a scanning approach

Sen Zhou, Lei Tao, Tong Liu, Jun Xiong

Proceedings Volume 12060, AOPC 2021: Advanced Laser Technology and Applications; 120600I (2021) https://doi.org/10.1117/12.2605338
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

In this paper, an automated edge detection model is developed for large irregular circular using a laser scanning approach. Some key influencing factors, just like surface quality, surface orientation and scan depth, have been respectively considered in this model. By consider of the limited of field of view and corresponding optical constraints, only a small part of key region is effectively captured by laser scanner at a specific posture. In term of specified view angles of laser scanner, the position of laser scanner approximate to the stand-off distance with respect to edge area can be determined and then high-quality point clouds of large irregular circular edge feature can be effectively obtained. Finally, a series of experiments are performed on workpieces with different large irregular circular features. The experimental result shows our method features high automation and high efficiency. Those results are most promising for on-machine applications in dimensional measurement of large-scale workpiece.

Citation Download Citation

Sen Zhou, Lei Tao, Tong Liu, and Jun Xiong "Automated edge detection model for large irregular circular using a scanning approach", Proc. SPIE 12060, AOPC 2021: Advanced Laser Technology and Applications, 120600I (24 November 2021); https://doi.org/10.1117/12.2605338

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KEYWORDS

Laser scanners

Edge detection

Laser optics

Clouds

Inspection

Prototyping

3D scanning

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