Technical Report CIS-2000-07

Title: Fast 3D Laser Scanner
Authors: Gil Zigelman and Ron Kimmel
Abstract: We present a simple method for scanning an object and retrieving its 3D coordinates. Our algorithm is motivated by Bouguet and Perona `3D photography on your desk' in that we search for similar objectives, efficiency and low cost. It is based on analyzing a sequence of images that contain a projection of a laser line. By providing two measurements - the distance between a laser line source and a video camera, and the distance between the camera and a wall located behind the object, we retrieve a range image representing the surface. This range image is then processed in order to create a 3D model of surface. The algorithm's efficiency and accuracy are demonstrated by a real-time implementation.
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