Towards precise real-time 3D difference detection for industrial applications

نویسندگان

  • Svenja Kahn
  • Ulrich Bockholt
  • Arjan Kuijper
  • Dieter W. Fellner
چکیده

3D difference detection is the task to verify whether the 3D geometry of a real object exactly corresponds to a 3D model of this object. We present an approach for 3D difference detection with a hand-held depth camera. In contrast to previous approaches, with the presented approach geometric differences can be detected in real-time and from arbitrary viewpoints. The 3D difference detection accuracy is improved by two approaches: First, the precision of the depth camera’s pose estimation is improved by coupling the depth camera with a high precision industrial measurement arm. Second, the influence of the depth measurement noise is reduced by integrating a 3D surface reconstruction algorithm. The effects of both enhancements are quantified by a ground-truth based quantitative evaluation, both for a time-of-flight (SwissRanger 4000) and a structured light depth camera (Kinect). With the proposed enhancements, differences of few millimeters can be detected from one meter measurement distance.

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عنوان ژورنال:
  • Computers in Industry

دوره 64  شماره 

صفحات  -

تاریخ انتشار 2013