Kaiser, Mirko; Brusa, Tobia; Bertsch, Martin; Wyss, Marco; Ćuković, Saša; Meixner, Gerrit; Koch, Volker M. (2024). Extrinsic Calibration for a Modular 3D Scanning Quality Validation Platform with a 3D Checkerboard Sensors, 24(5), p. 1575. MDPI 10.3390/s24051575
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Optical 3D scanning applications are increasingly used in various medical fields. Setups involving multiple adjustable systems require repeated extrinsic calibration between patients. Existing calibration solutions are either not applicable to the medical field or require a time-consuming process with multiple captures and target poses. Here, we present an application with a 3D checkerboard (3Dcb) for extrinsic calibration with a single capture. The 3Dcb application can register captures with a reference to validate measurement quality. Furthermore, it can register captures from camera pairs for point-cloud stitching of static and dynamic scenes. Registering static captures from TIDA-00254 to its reference from a Photoneo MotionCam-3D resulted in an error (root mean square error ± standard deviation) of 0.02 mm ± 2.9 mm. Registering a pair of Photoneo MotionCam-3D cameras for dynamic captures resulted in an error of 2.2 mm ± 1.4 mm. These results show that our 3Dcb implementation provides registration for static and dynamic captures that is sufficiently accurate for clinical use. The implementation is also robust and can be used with cameras with comparatively low accuracy. In addition, we provide an extended overview of extrinsic calibration approaches and the application’s code for completeness and service to fellow researchers.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
School of Engineering and Computer Science > Institute for Human Centered Engineering (HUCE) School of Engineering and Computer Science > Institute for Human Centered Engineering (HUCE) > HUCE / Laboratory for Biomedical Engineering School of Engineering and Computer Science |
Name: |
Kaiser, Mirko; Brusa, Tobia; Bertsch, Martin; Wyss, Marco; Ćuković, Saša; Meixner, Gerrit and Koch, Volker M. |
Subjects: |
T Technology > TA Engineering (General). Civil engineering (General) |
ISSN: |
1424-8220 |
Publisher: |
MDPI |
Funders: |
Organisations 47195 not found. |
Language: |
English |
Submitter: |
Tobia Brusa |
Date Deposited: |
09 Apr 2024 15:06 |
Last Modified: |
09 Apr 2024 15:06 |
Publisher DOI: |
10.3390/s24051575 |
PubMed ID: |
38475112 |
Uncontrolled Keywords: |
3D checkerboard; 3D scanning; extrinsic 3D calibration; point cloud registration; testing and validation platform |
ARBOR DOI: |
10.24451/arbor.21706 |
URI: |
https://arbor.bfh.ch/id/eprint/21706 |
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