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    Globally aligned photomosaic of the Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge, 37°18.5′N) : release of georeferenced data, mosaic construction, and viewing software

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    2008GC002204.pdf (2.888Mb)
    Date
    2008-12-05
    Author
    Escartin, Javier E.  Concept link
    Garcia, Rafael  Concept link
    Delaunoy, O.  Concept link
    Ferrer, J.  Concept link
    Gracias, Nuno  Concept link
    Elibol, A.  Concept link
    Cufi, X.  Concept link
    Neumann, L.  Concept link
    Fornari, Daniel J.  Concept link
    Humphris, Susan E.  Concept link
    Renard, J.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3287
    As published
    https://doi.org/10.1029/2008GC002204
    DOI
    10.1029/2008GC002204
    Keyword
     Mid-ocean ridge; Photomosaic; MoMAR; Lucky Strike; Hydrothermal field 
    Abstract
    We present a georeferenced photomosaic of the Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge, 37°18′N). The photomosaic was generated from digital photographs acquired using the ARGO II seafloor imaging system during the 1996 LUSTRE cruise, which surveyed a ∼1 km2 zone and provided a coverage of ∼20% of the seafloor. The photomosaic has a pixel resolution of 15 mm and encloses the areas with known active hydrothermal venting. The final mosaic is generated after an optimization that includes the automatic detection of the same benthic features across different images (feature-matching), followed by a global alignment of images based on the vehicle navigation. We also provide software to construct mosaics from large sets of images for which georeferencing information exists (location, attitude, and altitude per image), to visualize them, and to extract data. Georeferencing information can be provided by the raw navigation data (collected during the survey) or result from the optimization obtained from image matching. Mosaics based solely on navigation can be readily generated by any user but the optimization and global alignment of the mosaic requires a case-by-case approach for which no universally software is available. The Lucky Strike photomosaics (optimized and navigated-only) are publicly available through the Marine Geoscience Data System (MGDS, http://www.marine-geo.org). The mosaic-generating and viewing software is available through the Computer Vision and Robotics Group Web page at the University of Girona (http://eia.udg.es/∼rafa/mosaicviewer.html).
    Description
    Author Posting. © American Geophysical Union, 2008. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry Geophysics Geosystems 9 (2008): Q12009, doi:10.1029/2008GC002204.
    Collections
    • Geology and Geophysics (G&G)
    Suggested Citation
    Geochemistry Geophysics Geosystems 9 (2008): Q12009
     

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