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Spatter Tracking in Laser Machining

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publicationAdvances in Visual Computing. 8th International Symposium, ISVC 2012, July 16-18 2012, Rethymnon, Greece. Revised Selected Papers, Part 2. Lecture Notes in Computer Science.
EditorsG. Bebis, R. Boyle, B. Parvin, D. Koracin, C. Fowlkes, S. Wang, M.-H. Choi, S. Mantler, J. Schulze, D. Acevedo, K. Mueller, M. Papka
Place of PublicationBerlin Heidelberg
PublisherSpringer
Pages626-635
ISBN (Electronic)978-3-642-33191-6
ISBN (Print)978-3-642-33190-9
DOIs
Publication statusPublished - 2012
Publication typeA4 Article in a conference publication

Publication series

NameInternational Symposium on Visual Computing
Volume7432
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Abstract

In laser drilling, an assist gas is often used to remove material from the drilling point. In order to design assist gas nozzles to minimize spatter formation, measurements of spatter trajectories are required. We apply computer vision methods to measure the 3D trajectories of spatter particles in a laser cutting event using a stereo camera configuration. We also propose a novel method for calibration of a weak perspective camera that is effective in our application. The proposed method is evaluated with both computer-generated video and video taken from actual laser drilling events. The method performs well on different workpiece materials.

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