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Determining surface orientation by projecting a stripe pattern

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3 Author(s)
M. Asada ; Center for Autom. Res., Maryland Univ., College Park, MD, USA ; H. Ichikawa ; S. Tsuji

A method is presented for determining the surface orientations of an object by projecting a stripe pattern on to it. Assuming orthographical projection as a camera model and parallel light projection of the stripe pattern, the method obtains a 2 1/2-D representation of objects by estimating surface normals from the slopes and intervals of the stripes in the image. The 2 1/2-D image is further divided into planar or singly curved surfaces by examining the distribution of the surface normals in gradient space. A simple application to finding a planar surface and determining its orientation and shape is shown. The error in surface orientation is discussed.<>

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IEEE Transactions on Pattern Analysis and Machine Intelligence  (Volume:10 ,  Issue: 5 )