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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
Escartín, Javier; García Campos, Rafael; Delaunoy, Olivier; Ferrer Vila, Jordi; Grácias, Nuno Ricardo Estrela; Elibol, Armagan; Cufí i Solé, Xavier; Neumann, László; Fornari, D.J.; Humphris, S.E.; Renard, J.
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 imatge 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, The mosaic-generating and viewing software is available through the Computer Vision and Robotics Group Web page at the University of Girona (
Geologia submarina
Submarine geology
Imatges -- Processament
Image processing
Fons marins
Ocean bottom
Tots els drets reservats
American Geophysical Union

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