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Automated Visual Inspection of Ship Hull Surfaces Using the Wavelet Transform
Joint Authors
Fernández-Isla, Carlos
Navarro, Pedro J.
Alcover, Pedro María
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-05-27
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
A new online visual inspection technique is proposed, based on a wavelet reconstruction scheme over images obtained from the hull.
This type of visual inspection to detect defects in hull surfaces is commonly carried out at shipyards by human inspectors before the hull repair task starts.
We propose the use of Shannon entropy for automatic selection of the band for image reconstruction which provides a low decomposition level, thus avoiding excessive degradation of the image, allowing more precise defect segmentation.
The proposed method here is capable of on-line assisting to a robotic system to perform grit blasting operations over damage areas of ship hulls.
This solution allows a reliable and cost-effective operation for hull grit spot blasting.
A prototype of the automated blasting system has been developed and tested in the Spanish NAVANTIA shipyards.
American Psychological Association (APA)
Fernández-Isla, Carlos& Navarro, Pedro J.& Alcover, Pedro María. 2013. Automated Visual Inspection of Ship Hull Surfaces Using the Wavelet Transform. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-1008443
Modern Language Association (MLA)
Fernández-Isla, Carlos…[et al.]. Automated Visual Inspection of Ship Hull Surfaces Using the Wavelet Transform. Mathematical Problems in Engineering No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-1008443
American Medical Association (AMA)
Fernández-Isla, Carlos& Navarro, Pedro J.& Alcover, Pedro María. Automated Visual Inspection of Ship Hull Surfaces Using the Wavelet Transform. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-1008443
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1008443