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REAL-TIME DIGITAL VIDEO-IMAGE-PROCESSING SYSTEM [1 record]

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Record 1 2002-07-31

English

Subject field(s)
  • Welding and Soldering (Metals)
CONT

A real-time digital video-image-processing system contributes to the automation of weld-seam tracking. The tracking system makes no contact with the seam. A small television camera views the seam just ahead of the point currently being welded. The welding arc provides the illumination. Periodically, a frame grabber digitizes the video image and stores it in a computer memory as gray-scale values. The seam is located by analyzing Hough-transform arrays of derivatives of digitally-filtered image data. The information on the location and orientation of the seam is used as feedback by a welding robot to correct deviations of the electrode from the seam as welding continues.

French

Domaine(s)
  • Soudage (Métal)

Spanish

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