We describe an estimation technique which, given a measurement of the depth of a target from a wide-field-of-view (WFOV) stereo camera pair, produces a minimax risk fixed-size confidence interval estimate for the target depth. This work constitutes the first application to the computer vision domain of optimal fixed-size confidence-interval decision theory. The approach is evaluated in terms of theoretical capture probability and empirical capture frequency during actual experiments with a target on an optical bench. The method is compared to several other procedures including the Kalman Filter. The minimax approach is found to dominate all the other methods in performance. In particular for the minimax approach, a very close agreement is achieved between theoretical capture probability and empirical capture frequency. This allows performance to be accurately predicted, greatly facilitating the system design, and delineating the tasks that may be performed with a given system.


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    Title :

    Stereo depth estimation: a confidence interval approach


    Contributors:
    Mandelbaum, R. (author) / Kamberova, G. (author) / Mintz, M. (author)


    Publication date :

    1998-01-01


    Size :

    899425 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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