VDI/VDE 2634-2 and ISO 10360-13 Performance Evaluation Tests, and Systematic Errors in Structured Light Systems

Published

April 29, 2024

Author(s)

Octavio Icasio Hernandez, Alex Rocha De La Cruz, Balasubramanian Muralikrishnan, Vincent Lee, Wei Ren, Jose-Joel Gonzalez-Barbosa

Abstract

Structured light projection systems (SLSs) are commonly used for precision dimensional measurements. These are active systems in that the projected pattern is used to establish correspondence between the projector and the camera to provide more accurate 3D reconstruction as opposed to passive two-camera (no projector) stereo vision systems that rely on the user or features in images to identify corresponding points from the two cameras. Errors in the calibration of the model parameters of an SLS can lead to systematic errors in dimensional measurements. In this paper, we explore the topic of performance testing of an SLS, specifically, the sensitivity of the length tests described in the VDI/VDE 2634-2 guideline and the ISO 10360-13 standard to the model parameters (such as intrinsic parameters of the camera and the projector, and camera-projector geometry parameters) of an SLS. The results are based on simulations performed using data obtained from an SLS mounted on a Cartesian coordinate measuring machine (CMM) which is used primarily to position the target at different points within the measurement volume. The results show that the length tests described in the ISO 10360-13 standard provide better sensitivity to the model parameters than the VDI/VDE 2634-2 guideline. However, even the ISO 10360-13 length tests do not detect all parameters with high sensitivity. A model-based approach in identifying length tests (i.e., the position and orientation of reference lengths) such as described in this paper provide better sensitivity to model parameters and therefore is more likely to detect systematic errors in SLSs.

Citation

Precision Engineering

Volume

88

Pub Type

Journals

Download Paper

https://doi.org/10.1016/j.precisioneng.2024.04.015

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Keywords

ISO 10360-13, Performance evaluation, Sensitivity study, Structured light system, VDI/VDE 2634-2

Citation

Icasio Hernandez, O. , Rocha De La Cruz, A. , Muralikrishnan, B. , Lee, V. , Ren, W. and Gonzalez-Barbosa, J. (2024), VDI/VDE 2634-2 and ISO 10360-13 Performance Evaluation Tests, and Systematic Errors in Structured Light Systems, Precision Engineering, [online], https://doi.org/10.1016/j.precisioneng.2024.04.015, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=957073 (Accessed April 3, 2025)