JRM Vol.35 No.5 pp. 1374-1384
doi: 10.20965/jrm.2023.p1374


Experimental Evaluation of Highly Accurate 3D Measurement Using Stereo Camera and Line Laser

Shunya Nonaka*, Sarthak Pathak** ORCID Icon, and Kazunori Umeda** ORCID Icon

*Precision Engineering Course, Graduate School of Science and Engineering, Chuo University
1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan

**Department of Precision Mechanics, Faculty of Science and Engineering, Chuo University
1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan

March 13, 2023
July 27, 2023
October 20, 2023
3D measurement, stereo camera, marking

This paper proposes a method to improve the accuracy of 3D measurement of a stereo camera by marking a measured object using a line laser. Stereo cameras are commonly used for 3D measurement, but the accuracy of 3D measurement is affected by the amount of texture. Therefore, a new measurement system combining a stereo camera and a line laser is developed. The accuracy of 3D measurement with a stereo camera is improved by using a line laser to mark arbitrary points on the measured object and measuring the marked points, regardless of the amount of texture on the measured object. Because the laser is only used to mark points on the measurement target, calibration is not required with the stereo camera. Experimental evaluation showed that our proposed method can obtain millimeters.

3D measurement by stereo camera and line laser

3D measurement by stereo camera and line laser

Cite this article as:
S. Nonaka, S. Pathak, and K. Umeda, “Experimental Evaluation of Highly Accurate 3D Measurement Using Stereo Camera and Line Laser,” J. Robot. Mechatron., Vol.35 No.5, pp. 1374-1384, 2023.
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Last updated on Nov. 24, 2023