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JRM Vol.34 No.5 pp. 1096-1110
doi: 10.20965/jrm.2022.p1096
(2022)

Paper:

Structured Light Field by Two Projectors Placed in Parallel for High-Speed and Precise 3D Feedback

Hiromu Kijima and Hiromasa Oku

Gunma University
1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan

Received:
January 27, 2022
Accepted:
June 14, 2022
Published:
October 20, 2022
Keywords:
high-speed, precise, depth estimation, structured light field, dynamic projection mapping
Abstract
Structured Light Field by Two Projectors Placed in Parallel for High-Speed and Precise 3D Feedback

Proposed novel method to generate SLF with two projectors placed in parallel

In recent years, it is required to acquire three-dimensional information at high speed in various fields. Previously, a structured light field (SLF) method for high-speed three dimensional measurement in 1 ms was proposed by our group. However, the SLF method has a drawback of worse depth estimation error by several tens millimeters. In this paper, a novel method to generate SLF with two projectors placed in parallel is proposed. This arrangement could produce bigger pattern change depending on the depth and made more precise estimation possible. The depth estimation experiments for precision evaluation and dynamic projection mapping experiment successfully demonstrated precise depth estimation with the error of several millimeters and high-speed estimation within 1 ms, though the measurement range was limited to approximately 100 mm.

Cite this article as:
H. Kijima and H. Oku, “Structured Light Field by Two Projectors Placed in Parallel for High-Speed and Precise 3D Feedback,” J. Robot. Mechatron., Vol.34, No.5, pp. 1096-1110, 2022.
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