DeepSurveyCam — A Deep Ocean Optical Mapping System.

Kwasnitschka, Tom, Köser, Kevin, Sticklus, Jan , Rothenbeck, Marcel, Weiß, Tim, Wenzlaff, Emanuel, Schoening, Timm , Triebe, Lars, Steinführer, Anja, Devey, Colin and Greinert, Jens (2016) DeepSurveyCam — A Deep Ocean Optical Mapping System. Open Access Sensors, 16 (164). DOI 10.3390/s16020164.

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Abstract

Underwater photogrammetry and in particular systematic visual surveys of the deep sea are by far less developed than similar techniques on land or in space. The main challenges are the rough conditions with extremely high pressure, the accessibility of target areas (container and ship deployment of robust sensors, then diving for hours to the ocean floor), and the limitations of localization technologies (no GPS). The absence of natural light complicates energy budget considerations for deep diving flash-equipped drones. Refraction effects influence geometric image formation considerations with respect to field of view and focus, while attenuation and scattering degrade the radiometric image quality and limit the effective visibility. As an improvement on the stated issues, we present an AUV-based optical system intended for autonomous visual mapping of large areas of the seafloor (square kilometers) in up to 6000 m water depth. We compare it to existing systems and discuss tradeoffs such as resolution vs. mapped area and show results from a recent deployment with 90,000 mapped square meters of deep ocean floor.

Document Type: Article
Additional Information: (This article belongs to the Special Issue Sensors and Techniques for 3D Object Modeling in Underwater Environments)
Keywords: AUV; photogrammetry; camera; survey; deep sea; mapping; mosaicking; Photoscan; RV Sonne; SO239; SO242; AUV ABYSS
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems > DeepSea Monitoring
OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS Magmatic and Hydrothermal Systems
OceanRep > GEOMAR > ZE Central Facilities > ZE-TLZ Technical and Logistics
Kiel University
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.3390/s16020164
ISSN: 1424-8220
Projects: ROBEX
Contribution Number:
ProjectNumber
DSM16
Expeditions/Models/Experiments:
Date Deposited: 29 Jan 2016 10:07
Last Modified: 01 Feb 2019 15:05
URI: http://oceanrep.geomar.de/id/eprint/31231

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