Protocols for Image Processing based Underwater Inspection of Infrastructure Elements

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Title: Protocols for Image Processing based Underwater Inspection of Infrastructure Elements
Authors: O'Byrne, Michael
Ghosh, Bidisha
Schoefs, Franck
Pakrashi, Vikram
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Date: 9-Jul-2015
Online since: 2019-05-13T10:38:38Z
Abstract: Image processing can be an important tool for inspecting underwater infrastructure elements like bridge piers and pile wharves. Underwater inspection often relies on visual descriptions of divers who are not necessarily trained in specifics of structural degradation and the information may often be vague, prone to error or open to significant variation of interpretation. Underwater vehicles, on the other hand can be quite expensive to deal with for such inspections. Additionally, there is now significant encouragement globally towards the deployment of more offshore renewable wind turbines and wave devices and the requirement for underwater inspection can be expected to increase significantly in the coming years. While the merit of image processing based assessment of the condition of underwater structures is understood to a certain degree, there is no existing protocol on such image based methods. This paper discusses and describes an image processing protocol for underwater inspection of structures. A stereo imaging image processing method is considered in this regard and protocols are suggested for image storage, imaging, diving, and inspection. A combined underwater imaging protocol is finally presented which can be used for a variety of situations within a range of image scenes and environmental conditions affecting the imaging conditions. An example of detecting marine growth is presented of a structure in Cork Harbour, Ireland.
Funding Details: Irish Research Council for Science, Engineering and Technology
Science Foundation Ireland
Type of material: Journal Article
Publisher: IOP Publishing
Journal: Journal of Physics: Conference Series
Volume: 628
Issue: 1
Copyright (published version): 2015 the Authors
Keywords: Underwater inspection of structuresImage processing based assessmentStereo imaging image processing methodIrelandImaging conditionsData acquisition
DOI: 10.1088/1742-6596/628/1/012130
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection

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