The computation of the optical flow field from an image sequences requires the definition of constraints on the temporal change of image features. In general, these constraints limit the motion of the body in space and/or of the features on the image plane. In this paper we consider the implications in using multiple constraints, both in terms of the increased complexity, but also for its advantages. Considering multiple image points not only allows to obtain a (locally) better estimate of the velocity field but also to characterize the temporal behaviour of the image features and to detect erroneous measurements due to occlusions, motion/depth discontinuities or shadows. Moreover, by hypothesizing a constant acceleration motion model, the derivatives of the optical flow are computed. Several experiments are presented demonstrating the feasibility of the algorithm in real applications.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Computation of optical flow and its derivatives from local differential constraints


    Contributors:


    Publication date :

    1995-01-01


    Size :

    823831 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Computation of Optical Flow and its Derivatives from Local Differential Constraints

    Tistarelli, M. / IEEE; Computer Society; Technical Committee for Pattern Analysis and Machine Intelligence | British Library Conference Proceedings | 1995


    Multispectral constraints for optical flow computation

    Markandey, V. / Flinchbaugh, B.E. | IEEE | 1990



    Computation of Coherent Optical Flow by Using Multiple Constraints

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