Future Mars exploration missions will perform two types of experiments: science instrument placement for close-up measurement, and sample acquisition for return to Earth. In this paper we describe algorithms we developed for these tasks, and demonstrate them in field experiments using a self-contained Mars Rover prototype, the Rocky 7 rover. Our algorithms perform visual servoing on an elevation map instead of image features, because the latter are subject to abrupt scale changes during the approach. 'This allows us to compensate for the poor odometry that results from motion on loose terrain. We demonstrate the successful grasp of a 5 cm long rock over 1m away using 103-degree field-of-view stereo cameras, and placement of a flexible mast on a rock outcropping over 5m away using 43 degree FOV stereo cameras.


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    Title :

    Autonomous Rock Tracking and Acquisition from a Mars Rover


    Contributors:
    M. W. Maimone (author) / I. A. Nesnas (author) / H. Das (author)

    Publication date :

    1999


    Size :

    6 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Autonomous Rock Tracking and Acquisition from a Mars Rover

    Maimone, M. / Nesnas, I. / Das, H. | NTRS | 1997


    Autonomous Rock Tracking and Acquisition from a Mars Rover

    Maimone, M. / Nesnas, I. / Das, H. et al. | British Library Conference Proceedings | 1999


    Autonomous Rock Tracking and Acquisition from a Mars Rover

    Maimone, Mark W. / Nesnas, Issa A. / Das, Hari | NTRS | 1999


    Autonomous Rock Tracking and Acquisition from a Mars Rover

    Das, H. / Nesnas, I. / Maimone, M. | NTRS | 1999


    Mars Rover Autonomous Navigation

    Maurette, M. | British Library Online Contents | 2003