We present an approach for identifying the occluding contour and determining its sidedness using an active (i.e., moving) observer. It is based on the non-stationarity property of the visible rim: When the observer's viewpoint is changed, the visible rim is a collection of curves that "slide," rigidly or non-rigidly over the surface. We show that the absenter can deterministically choose three views on the tangent plane of selected surface points to distinguish such curves from stationary surface curves (i.e., surface markings). Our approach demonstrates that the occluding contour can be identified directly, i.e., without first computing surface shape (distance and curvature).<>


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    Title :

    Occluding contour detection using affine invariants and purposive viewpoint control


    Contributors:
    Kutulakos (author) / Dyer (author)


    Publication date :

    1994-01-01


    Size :

    874297 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Occluding Contour Detection Using Affine Invariants and Purposive Viewpoint Control

    Kutulakos, K. N. / Dyer, C. R. / Institute of Electrical and Electronics Engineers; Computer Society | British Library Conference Proceedings | 1994


    Viewpoint from Occluding Contour

    Seales, W. B. / Dyer, C. R. | British Library Online Contents | 1992


    Viewpoint from occluding contour

    Seales, W. Brent / Dyer, Charles R. | TIBKAT | 1990


    Affine Surface Reconstruction by Purposive Viewpoint Control

    Kutulakos, K. / IEEE Computer Society / Technical Committee on Pattern Analysis and Machine Intelligence | British Library Conference Proceedings | 1995