Model-based interpretation of stereo imagery of textured surfaces |
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| Authors: | Wenyi Zhao N. Nandhakumar Philip W. Smith |
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| Affiliation: | (1) Department of Electrical Engineering, University of Maryland, College Park, MD 20742, USA , US;(2) LG Electronics Research Center of America, Inc., 40 Washington Rd., Princeton Jct, NJ 08550, USA , US;(3) Department of Electrical Engineering, University of Tennessee, Knoxville, TN 37996, USA , US |
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| Abstract: | We present a scheme for reliable and accurate surface reconstruction from stereoscopic images containing only fine texture and no stable high-level features. Partial shape information is used to improve surface computation: first by fitting an approximate, global, parametric model, and then by refining this model via local correspondence processes. This scheme eliminates the window size selection problem in existing area-based stereo correspondence schemes. These ideas are integrated in a practical vision system that is being used by environmental scientists to study wind erosion of bulk material such as coal ore being transported in open rail cars. Received: 14 August 1995 / Accepted: 27 May 1997 |
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| Keywords: | : Stereoscopic vision – Stereo correspondence – Surface reconstruction – Depth computation – Stereo disparity |
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