Horn and Schunk's approach is a very classical optical flow algorithm. This paper investigates a modification of Horn and Schunk's approach which leads to a better preservation of flow discontinuities. It improves Horn-Schunk model in three aspects: (i) It replaces the smooth weight coefficient in the energy equation by variable weight coefficient, (ii) It adopts a new method to compute the velocity mean. The new method reflects the effect of the intensity difference on the image velocity diffusion, (iii) It introduces a more efficient iterative method than the Gauss-Seidel method to solve the associated Euler-Lagrange equation. The experiment results have validated the better effect of the improved method on discontinuities preserving.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A discontinuity-preserving optical flow algorithm


    Contributors:
    Lei Yuan, (author) / Jinzong Li, (author) / Bing Zhu, (author) / Yulong Qiao, (author)


    Publication date :

    2006-01-01


    Size :

    2741253 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    A Two-Stage Algorithm for Motion Discontinuity-Preserving Optical Flow Estimation

    Sim, D.-G. / Park, R.-H. | British Library Online Contents | 1997


    Window-Based, Discontinuity Preserving Stereo

    Agrawal, M. / Davis, L. / IEEE Computer Society | British Library Conference Proceedings | 2004


    Window-based, discontinuity preserving stereo

    Agrawal, M. / Davis, L.S. | IEEE | 2004



    Discontinuity Preserving Surface Reconstruction through Global Optimization

    Vaidya, N. M. / Boyer, K. L. / IEEE; Computer Society; Technical Committee for Pattern Analysis and Machine Intelligence | British Library Conference Proceedings | 1995