In this paper, we address the problem of recovering structure and motion from the apparent contours of a smooth surface. Fixed image features under circular motion and their relationships with the intrinsic parameters of the camera are exploited to provide a simple parameterization of the fundamental matrix relating any pair of views in the sequence. Such a parameterization allows a trivial initialization of the motion parameters, which all bear physical meaning. It also greatly reduces the dimension of the search space for the optimization problem, which can now be solved using only two epipolar tangents. In contrast to previous methods, the motion estimation algorithm introduced here can cope with incomplete circular motion and more widely spaced images. Existing techniques for model reconstruction from apparent contours are then reviewed and compared. Experiment on real data has been carried out and the 3D model reconstructed from the estimated motion is presented. © 2002 Elsevier Science B.V. All rights reserved. ; postprint


    Access

    Download


    Export, share and cite



    Title :

    Structure and motion estimation from apparent contours under circular motion


    Contributors:
    Wong, KYK (author) / Mendonça, PRS (author) / Cipolla, R (author)

    Publication date :

    2002-01-01


    Remarks:

    20



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629



    Structure and motion estimation from apparent contours under circular motion

    Wong, K. Y. / Mendonca, P. R. / Cipolla, R. | British Library Online Contents | 2002


    Motion Estimation in Image Sequences using the Deformation of Apparent Contours

    Kahl, F. / Aastroem, K. / IEEE; Computer Society | British Library Conference Proceedings | 1998



    Surface geometry from cusps of apparent contours

    Cipolla, R. / Fletcher, G. / Giblin, P. | IEEE | 1995


    Surface Geometry from Cusps of Apparent Contours

    Cipolla, R. / Fletcher, G. / Giblin, P. et al. | British Library Conference Proceedings | 1995