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    Underwater optical measurement of position and orientation using a prepared, passive target

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    Nickolaisen_thesis.pdf (7.091Mb)
    Date
    1989-09
    Author
    Nickolaisen, Niel R.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/5398
    DOI
    10.1575/1912/5398
    Keyword
    Remote submersibles
    Abstract
    In order to provide an accurate and efficient method of docking, station keeping, and navigation for the JASON remotely operated vehicle, an optical tracking method is investigated. The method needs to be accurate enough for underwater control and fast enough to enable timely control. The method presented solves the camera location problem in a closed form and is accurate for accurate measurements of image plane coordinates. Target design criteria are discussed and a prepared, passive target is selected. Testing and error analysis reveal that the approach gives good results for camera lenses with focal lengths greater than 4.8mm. The effects of underwater use are discussed and a non-numerical method of compensating for the underwater effects is presented. The compensation method shifts the image plane coordinates toward the image plane center and gives results that are within acceptable error margins.
    Description
    Submitted in partial fulfillment of the requirements for the degree of Master of Science at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 1989
    Collections
    • Applied Ocean Physics and Engineering (AOP&E)
    • WHOI Theses
    Suggested Citation
    Thesis: Nickolaisen, Niel R., "Underwater optical measurement of position and orientation using a prepared, passive target", 1989-09, DOI:10.1575/1912/5398, https://hdl.handle.net/1912/5398
     

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