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Development of long range color imaging for wide area 3D reconstructions of the seafloor

Development of long range color imaging for wide area 3D reconstructions of the seafloor
Development of long range color imaging for wide area 3D reconstructions of the seafloor
3D visual mapping of the seafloor has found applications ranging from environment monitoring and survey of marine minerals to underwater archeology and inspection of modern man-made structures. However, the attenuation of light is significantly more pronounced in water than in air or in space, and so in order to obtain underwater images in color, it is typically necessary to be within 2 to 3 m of the seafloor. In addition to the high risk of collision when operating underwater vehicles at such low altitudes, the limited area of the seafloor covered in each image means large area surveys require a huge investment of time. In this research, we aim to increase the efficiency of mapping large areas of the seafloor by developing an underwater imaging system that can take color images at ranges of up to 13 m, so that each image can cover a larger area, together with the necessary algorithms to automatically process the data it obtains. The system was deployed to map artificial hydrothermal vents in Iheya North Knoll using the ROV Hyper-Dolphin in October 2012. In this paper, we describe the instrument and the methods used to process the data it obtains, and present wide area 3D reconstructions of habitats surrounding artificial hydrothermal vents.
Bodenmann, Adrian
cb58d2eb-f208-4bd7-9acc-5c18dc1fc022
Thornton, Blair
8293beb5-c083-47e3-b5f0-d9c3cee14be9
Ura, Tamaki
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Bodenmann, Adrian
cb58d2eb-f208-4bd7-9acc-5c18dc1fc022
Thornton, Blair
8293beb5-c083-47e3-b5f0-d9c3cee14be9
Ura, Tamaki
0054b875-f246-4d9d-b970-623d97fd4d86

Bodenmann, Adrian, Thornton, Blair and Ura, Tamaki (2013) Development of long range color imaging for wide area 3D reconstructions of the seafloor. In Underwater Technology Symposium (UT), 2013 IEEE International.

Record type: Conference or Workshop Item (Paper)

Abstract

3D visual mapping of the seafloor has found applications ranging from environment monitoring and survey of marine minerals to underwater archeology and inspection of modern man-made structures. However, the attenuation of light is significantly more pronounced in water than in air or in space, and so in order to obtain underwater images in color, it is typically necessary to be within 2 to 3 m of the seafloor. In addition to the high risk of collision when operating underwater vehicles at such low altitudes, the limited area of the seafloor covered in each image means large area surveys require a huge investment of time. In this research, we aim to increase the efficiency of mapping large areas of the seafloor by developing an underwater imaging system that can take color images at ranges of up to 13 m, so that each image can cover a larger area, together with the necessary algorithms to automatically process the data it obtains. The system was deployed to map artificial hydrothermal vents in Iheya North Knoll using the ROV Hyper-Dolphin in October 2012. In this paper, we describe the instrument and the methods used to process the data it obtains, and present wide area 3D reconstructions of habitats surrounding artificial hydrothermal vents.

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Published date: 27 May 2013

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Local EPrints ID: 414086
URI: https://eprints.soton.ac.uk/id/eprint/414086
PURE UUID: 024af127-6071-4bf9-8338-dc838dc41c7d

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Date deposited: 14 Sep 2017 16:31
Last modified: 13 Mar 2019 19:27

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