weld camera, Laser welding, High Dynamic Range, weld monitoring, Laser cutting

Blob Analysis Tool for Weld Monitoring

Cameron Serles
Written by Cameron Serles on December 14, 2016

 

  Image Processing is slowly making its way into the welding world.  With the advent of high dynamic range weld cameras such as the Xiris XVC-1000, images of welding processes can be made with enormous ranges of brightness.  As a result, it is now possible to monitor and record good quality video of most welding processes using an HDR camera.  With good quality images of the weld pool, arc and seam, the next logical step is to incorporate image processing into the camera system to extract additional information to help operators better control the welding process.

  The BlobAnalyzer tool from Xiris is a powerful Blob Analysis tool that can measure a variety of properties of objects within a region of interest.  Data can be generated from the properties and then monitored or analyzed so that objects measured or sorted based on their shape parameters.  The net result is a new way for fabricators to enhance the monitoring and controlling their weld processes.


BlobAnalyzer.png

The Blob Analysis tool includes properties such as:

 Area                 Centroid           Perimeter         FormFactor        BoundingBox

 Orientation         Eccentricity      EulerNumber    Hole Count        TouchesBorder

 FeretDiameter    GrayMass        GrayMean        Compactness

Conclusion

  By incorporating image processing tools such as Blob Analysis into their weld camera systems, machine builders can measure features of their weld processes in a way that has never before been possible.  It is now possible to find features in an image, such as the weld arc, or seam, that could allow for further monitoring or analysis, or form the foundation for seam tracking or weld pool geometry analysis.

For more information on how Xiris Weld Cameras can help monitor your weld processes, visit Xiris.com 

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