Wischow, Maik und Dahlke, Dennis und Meißner, Henry und Ernst, Ines und Jarka, Stefan und Glück, Roland (2022) CALIBRATION AND VALIDATION OF A STEREO CAMERA SYSTEM AUGMENTED WITH A LONG-WAVE INFRARED MODULE TO MONITOR ULTRASONIC WELDING OF THERMOPLASTICS. In: ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences. ISPRS Congress 2022, 06.-11. Jun. 2022, Nizza, Frankreich. ISSN 2194-9042.
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Kurzfassung
Ultrasonic welding of thermoplastics has become an important industrial manufacturing process in the fields of aerospace and transportation. High quality standards are demanded and a reliable quality assessment routine is fundamental. Most on-site and off-site approaches are time consuming or require additional active illumination. Especially temperature models have proven to be good indicators for welding quality. We present a methodology to measure the surface temperature in real-time and visualize it simultaneously as a 3D model. Through augmenting a stereo camera system with an additional passive thermal infrared camera, we are able to map the heat data of multiple successive welds of large, free-form structures into a common 3D data representation. A challenging calibration approach is used to derive the inner and exterior orientation for the trifocal camera system. Geometric and radiometric improvements for an aluminium chessboard allow the usage of wide-angle optics for the thermal infrared camera. Consequently, we verify the quality of each camera by means of their resolving power. Therefore, a Siemens star test pattern is used for the thermal camera as well. We demonstrate the effectiveness of our methodology on a robot-guided ultrasonic welding tool.
elib-URL des Eintrags: | https://elib.dlr.de/186004/ | ||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
Titel: | CALIBRATION AND VALIDATION OF A STEREO CAMERA SYSTEM AUGMENTED WITH A LONG-WAVE INFRARED MODULE TO MONITOR ULTRASONIC WELDING OF THERMOPLASTICS | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 6 Juni 2022 | ||||||||||||||||||||||||||||
Erschienen in: | ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
ISSN: | 2194-9042 | ||||||||||||||||||||||||||||
Status: | akzeptierter Beitrag | ||||||||||||||||||||||||||||
Stichwörter: | Stereo-Camera, Infrared, Co-Registration, DoF, Ultrasonic Welding, Quality Assessment | ||||||||||||||||||||||||||||
Veranstaltungstitel: | ISPRS Congress 2022 | ||||||||||||||||||||||||||||
Veranstaltungsort: | Nizza, Frankreich | ||||||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||
Veranstaltungsdatum: | 06.-11. Jun. 2022 | ||||||||||||||||||||||||||||
Veranstalter : | International Society for Photogrammetry and Remote Sensing | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Technik für Raumfahrtsysteme | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R SY - Technik für Raumfahrtsysteme | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Projekt Factory of the Future | ||||||||||||||||||||||||||||
Standort: | Augsburg , Berlin-Adlershof | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Optische Sensorsysteme Institut für Optische Sensorsysteme > Echtzeit-Datenprozessierung Institut für Optische Sensorsysteme > Sicherheitsforschung und Anwendungen Institut für Bauweisen- und Konstruktionsforschung > Zentrum für Leichtbauproduktionstechnologie | ||||||||||||||||||||||||||||
Hinterlegt von: | Wischow, Maik | ||||||||||||||||||||||||||||
Hinterlegt am: | 04 Apr 2022 08:01 | ||||||||||||||||||||||||||||
Letzte Änderung: | 04 Apr 2022 08:01 |
Verfügbare Versionen dieses Eintrags
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CALIBRATION AND VALIDATION OF A STEREO CAMERA SYSTEM AUGMENTED WITH A LONG-WAVE INFRARED MODULE TO MONITOR ULTRASONIC WELDING OF THERMOPLASTICS. (deposited 11 Jan 2022 08:32)
- CALIBRATION AND VALIDATION OF A STEREO CAMERA SYSTEM AUGMENTED WITH A LONG-WAVE INFRARED MODULE TO MONITOR ULTRASONIC WELDING OF THERMOPLASTICS. (deposited 04 Apr 2022 08:01) [Gegenwärtig angezeigt]
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