An overview of research in obstacle detection at NASA Ames Research Center is presented. The research applies techniques from computer vision to automation of rotorcraft navigation. The development of a methodology for detecting the range to obstacles based on the maximum utilization of passive sensors is emphasized. The development of a flight and image data base for verification of vision-based algorithms, and a passive ranging methodology tailored to the needs of helicopter flight are discussed. Preliminary results indicate that it is possible to obtain adequate range estimates except at regions close to the FOE. Closer to the FOE, the error in range increases since the magnitude of the disparity gets smaller, resulting in a low SNR.


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    Title :

    Vision based techniques for rotorcraft low altitude flight


    Contributors:


    Publication date :

    1991-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Vision based techniques for rotorcraft low altitude flight

    Banavar Sridhar / Suorsa, R. / Smith, P. | Tema Archive | 1991



    Computer vision techniques for rotorcraft low-altitude flight

    Sridhar, B. / Cheng, V.H.L. | Tema Archive | 1988



    Passive range estimation for rotorcraft low-altitude flight

    Sridhar, B. / Suorsa, R. / Hussien, B. | NTRS | 1991