The presence of repetitive patterns in the domain of stereo vision results in multiple matching hypotheses. Choosing the wrong hypothesis leads to an incorrect determination of objects and calculation of their distances. Especially in vision-based driver assistance and safety systems a high accuracy in matching and distance calculation is vital. One approach to increase the robustness of matching is to add a third camera to the system. Another idea is to resolve the ambiguities over time. In this paper we present a different solution without additional hardware expense: The shiny varnished hood of the car provides a mirror which is in a fixed position relative to the cameras. This mirror displays additional views of the scene, providing the required information. The cameras and the respective camera-mirror systems need to be calibrated. The epipolar geometry and the disparity-distance function of the free-form surface mirror must be determined. After establishing this we can obtain the correct matching hypothesis.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Calibration of a free-form surface mirror in a stereo vision system


    Contributors:

    Published in:

    Publication date :

    2002-01-01


    Size :

    549669 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Calibration of a Free-Form Surface Mirror in a Stereo Vision System

    Wuerz-Wessel, A. / Stein, F. J. / INRIA et al. | British Library Conference Proceedings | 2003


    Robot Calibration using stereo vision

    Chen, Shoupu | TIBKAT | 1987


    Self-calibration for Active Automotive Stereo Vision

    Dang, T. / Hoffmann, C. / Stiller, C. | British Library Conference Proceedings | 2006


    Self-calibration for Active Automotive Stereo Vision

    Thao Dang, / Hoffmann, C. / Stiller, C. | IEEE | 2006


    Recognition of 3D free-form objects using segment-based stereo vision

    Sumi, Y. / Kawai, Y. / Yoshimi, T. et al. | IEEE | 1998