Spatter tracking in laser machining

Timo Viitanen, Jari Kolehmainen, Robert Piché, Yasuhiro Okamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


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.

Original languageEnglish
Title of host publicationAdvances in Visual Computing - 8th International Symposium, ISVC 2012, Revised Selected Papers
Number of pages10
EditionPART 2
Publication statusPublished - 2012
Event8th International Symposium on Visual Computing, ISVC 2012 - Rethymnon, Crete, Greece
Duration: Jul 16 2012Jul 18 2012

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 2
Volume7432 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other8th International Symposium on Visual Computing, ISVC 2012
CityRethymnon, Crete

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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