Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Optical Metrology and Inspection for Industrial Applications V |
| Herausgeber/-innen | Toru Yoshizawa, Song Zhang, Sen Han, Sen Han |
| Herausgeber (Verlag) | SPIE |
| Seitenumfang | 9 |
| ISBN (elektronisch) | 9781510622364 |
| Publikationsstatus | Veröffentlicht - 2 Nov. 2018 |
| Veranstaltung | Optical Metrology and Inspection for Industrial Applications V 2018 - Beijing, China Dauer: 11 Okt. 2018 → 13 Okt. 2018 |
Publikationsreihe
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Band | 10819 |
| ISSN (Print) | 0277-786X |
| ISSN (elektronisch) | 1996-756X |
Abstract
A key problem when using the derotator is to ensure the coaxial alignment between the optical axis of the derotator and the rotation axis of the measured object. Moreover, accurate measurement of the rotation axis is the prerequisite of achieving the coaxial alignment. In this paper, we propose a strategy for estimation of the rotation axis with the assistant of an auxiliary laser and a binocular stereo vision sensor. When a laser source is temporarily attached to the measured object or the rotor shaft, the rotation of the laser will generate a ruled surface. The binocular sensor can accurately measure the coordinates of laser dots in three-dimensional (3D) space. The pose vector of the laser in each certain rotation angle can be estimated with measured 3D coordinates of the laser dots. Finally, the rotation axis of the object can be estimated with multiple pose vectors considering the constraint of the fixed axis rotation. The validity and precision of this proposed strategy are demonstrated by means of experiments.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Informatik (insg.)
- Angewandte Informatik
- Mathematik (insg.)
- Angewandte Mathematik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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- BibTex
- RIS
Optical Metrology and Inspection for Industrial Applications V. Hrsg. / Toru Yoshizawa; Song Zhang; Sen Han; Sen Han. SPIE, 2018. 108190S (Proceedings of SPIE - The International Society for Optical Engineering; Band 10819).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Rotation axis estimation for the derotator calibration with machine vision measurement of the auxiliary laser
AU - Yin, Yongkai
AU - Altmann, Bettina
AU - Pape, Christian
AU - Reithmeier, Eduard
N1 - Funding information: The support of the Humboldt Research Fellowship for Postdoctoral Researchers is gratefully acknowledged. The financial supports from the Natural Science Foundation of China (NSFC) under the grant 61775121, 61675117 and that from the Sino-German Center for Research Promotion (SGCRP) under the grant GZ 1391 are also gratefully acknowledged.
PY - 2018/11/2
Y1 - 2018/11/2
N2 - A key problem when using the derotator is to ensure the coaxial alignment between the optical axis of the derotator and the rotation axis of the measured object. Moreover, accurate measurement of the rotation axis is the prerequisite of achieving the coaxial alignment. In this paper, we propose a strategy for estimation of the rotation axis with the assistant of an auxiliary laser and a binocular stereo vision sensor. When a laser source is temporarily attached to the measured object or the rotor shaft, the rotation of the laser will generate a ruled surface. The binocular sensor can accurately measure the coordinates of laser dots in three-dimensional (3D) space. The pose vector of the laser in each certain rotation angle can be estimated with measured 3D coordinates of the laser dots. Finally, the rotation axis of the object can be estimated with multiple pose vectors considering the constraint of the fixed axis rotation. The validity and precision of this proposed strategy are demonstrated by means of experiments.
AB - A key problem when using the derotator is to ensure the coaxial alignment between the optical axis of the derotator and the rotation axis of the measured object. Moreover, accurate measurement of the rotation axis is the prerequisite of achieving the coaxial alignment. In this paper, we propose a strategy for estimation of the rotation axis with the assistant of an auxiliary laser and a binocular stereo vision sensor. When a laser source is temporarily attached to the measured object or the rotor shaft, the rotation of the laser will generate a ruled surface. The binocular sensor can accurately measure the coordinates of laser dots in three-dimensional (3D) space. The pose vector of the laser in each certain rotation angle can be estimated with measured 3D coordinates of the laser dots. Finally, the rotation axis of the object can be estimated with multiple pose vectors considering the constraint of the fixed axis rotation. The validity and precision of this proposed strategy are demonstrated by means of experiments.
KW - 3D measurement
KW - Auxiliary laser
KW - Binocular stereo vision
KW - Derotator calibration
KW - Least squares fitting
KW - Rotation axis estimation
UR - http://www.scopus.com/inward/record.url?scp=85059405448&partnerID=8YFLogxK
U2 - 10.1117/12.2500549
DO - 10.1117/12.2500549
M3 - Conference contribution
AN - SCOPUS:85059405448
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optical Metrology and Inspection for Industrial Applications V
A2 - Yoshizawa, Toru
A2 - Zhang, Song
A2 - Han, Sen
A2 - Han, Sen
PB - SPIE
T2 - Optical Metrology and Inspection for Industrial Applications V 2018
Y2 - 11 October 2018 through 13 October 2018
ER -