IDEAS home Printed from https://ideas.repec.org/a/hin/jnlmpe/101837.html
   My bibliography  Save this article

Automated Visual Inspection of Ship Hull Surfaces Using the Wavelet Transform

Author

Listed:
  • Carlos Fernández-Isla
  • Pedro J. Navarro
  • Pedro María Alcover

Abstract

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.

Suggested Citation

  • Carlos Fernández-Isla & Pedro J. Navarro & Pedro María Alcover, 2013. "Automated Visual Inspection of Ship Hull Surfaces Using the Wavelet Transform," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-12, May.
    • Handle: RePEc:hin:jnlmpe:101837
    DOI: 10.1155/2013/101837
    as

    Download full text from publisher

    File URL: http://downloads.hindawi.com/journals/MPE/2013/101837.pdf
    Download Restriction: no
    File URL: http://downloads.hindawi.com/journals/MPE/2013/101837.xml
    Download Restriction: no
    File URL: https://libkey.io/10.1155/2013/101837?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Tomaszewski, Michał & Ruszczak, Bogdan & Michalski, Paweł & Zator, Sławomir, 2019. "The study of weather conditions favourable to the accretion of icing that pose a threat to transmission power lines," International Journal of Critical Infrastructure Protection, Elsevier, vol. 25(C), pages 139-151.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:hin:jnlmpe:101837. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Mohamed Abdelhakeem (email available below). General contact details of provider: https://www.hindawi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.