An Underwater Photogrammetric Application to Generate Micro-Bathymetry Data for Benthic Habitat Mapping and Analysis at Arctic Ocean.


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autun.purser [ at ] awi.de

Abstract

The Ocean Floor Observation and Bathymetry System (OFOBS) is an underwater survey plat-form, which is designed and developed for research in the Polar Regions by the Alfred Wegener Institute (AWI). The tailored deep tow system brought a new perspective and clarity from Arctic Ocean by its optical and acoustic sensors. During the PS101 expedition at the Karasik seamount, OFOBS provides a novel picture of megafauna’s habitats. In this study, we develop a methodology to convert the imagery dataset to micro-bathymetry in order to provide primary data for object detection and habitat mapping which will provide a better understanding of arctic benthic habitats. The methodology is based on the underwater photogrammetry workflow and two different point cloud classification methods adopted for sponge detec-tion in 3D point clouds, to facilitate habitat mapping with a focus on the central of Kara



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Article
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Helmholtz Cross Cutting Activity (2021-2027)
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Published
Eprint ID
54897
DOI 10.1016/j.ifCOL.2021.10.123

Cite as
Nejad, A. M. , Luhrmann, T. , Kersten, T. P. , Dorschel, B. and Purser, A. (2021): An Underwater Photogrammetric Application to Generate Micro-Bathymetry Data for Benthic Habitat Mapping and Analysis at Arctic Ocean. , IFAC-PapersOnLine, 54 (16), pp. 402-409 . doi: 10.1016/j.ifCOL.2021.10.123


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PS > 101


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