A study on measurement of surface shape by combining laser and photogrammetry techniques

Hayato Murakami; Mengbo You; Morimichi Furudate; Xin Lu; Fumito Chiba; Kouichi Konno

doi:10.1117/12.3019567

2 May 2024 A study on measurement of surface shape by combining laser and photogrammetry techniques

Hayato Murakami, Mengbo You, Morimichi Furudate, Xin Lu, Fumito Chiba, Kouichi Konno

Proceedings Volume 13164, International Workshop on Advanced Imaging Technology (IWAIT) 2024; 131642Z (2024) https://doi.org/10.1117/12.3019567
Event: International Workshop on Advanced Imaging Technology (IWAIT) 2024, 2024, Langkawi, Malaysia

Abstract

Laser scanning and photogrammetry are the methods to obtain the surface point cloud of an object. Laser scanning can measure the actual size, but some missing spots might appear if the laser does not reach the object surface. In contrast, photogrammetry cannot measure the actual size of an object, but missing spots are less likely to appear. By using laser-scanned point clouds and photogrammetric ones together, it will be possible that point clouds of the object’s actual size will be obtained without any missing surface spots. However, it takes time and effort to perform laser scanning and photogrammetry and synthesize the obtained point clouds. Therefore, this paper proposes a method that can automatically measure laser scanning and photogrammetry to improve the efficiency of actual-size point cloud acquisition without missing spots. To confirm the efficiency of our method, the surfaces of an oyster shell and a bird doll are measured as examples. As the result, point clouds without missing spots are obtained.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hayato Murakami, Mengbo You, Morimichi Furudate, Xin Lu, Fumito Chiba, and Kouichi Konno "A study on measurement of surface shape by combining laser and photogrammetry techniques", Proc. SPIE 13164, International Workshop on Advanced Imaging Technology (IWAIT) 2024, 131642Z (2 May 2024); https://doi.org/10.1117/12.3019567

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KEYWORDS

Point clouds

Photogrammetry

Laser scanners

Cameras

Sensors

Glasses

Measurement devices

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