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Proceedings Paper

Image mosaicking of a section of a tunnel lining and the detection of cracks through the frequency histogram of connected elements concept
Author(s): Abhijeet Mohanty; Tai Tien Wang
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Paper Abstract

This study aims to further the image mosaic technology, which helps to assemble the images obtained from a digital camera and eventually obtain a layout image of the lining surface. With the extensive use of mathematical correlations for distortions produced due to perspective, the errors and use of other machines has significantly reduced. The layout of the lining surface obtained from successive mosaic of partially overlapping images, which are represented as 2D orthographic-like and are rectified to form the 3D tunnel-lining surface. A test was carried out in the experimental tunnel to validate the proposed method and to examine its practicability. The anomalies on the tunnel-lining surface are usually cracks or a water leakage at any point, neither of which were identifiable through edge detection. Through the application of a slightly modified Frequency Histogram of Connected Elements method, the resultant image successfully identified the anomalies on the tunnel lining.

Paper Details

Date Published: 15 November 2011
PDF: 9 pages
Proc. SPIE 8335, 2012 International Workshop on Image Processing and Optical Engineering, 83351P (15 November 2011); doi: 10.1117/12.917800
Show Author Affiliations
Abhijeet Mohanty, Indian Institute of Technology (India)
Tai Tien Wang, National Taipei Univ. of Technology (Taiwan)

Published in SPIE Proceedings Vol. 8335:
2012 International Workshop on Image Processing and Optical Engineering
Hai Guo; Qun Ding, Editor(s)

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