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- Title
Segmentation of Pipe Images for Crack Detection in Buried Sewers.
- Authors
Iyer, Shivprakash; Sinha, Sunil K.
- Abstract
Assessing the condition of underground pipelines such as water lines, sewer pipes, and telecommunication conduits in an automated and reliable manner is vital to the safety and maintenance of buried public infrastructure. To fully automate condition assessment, it is necessary to develop robust data analysis and interpretation systems for defects in buried pipes. This article presents the development of an automated data analysis system for detecting defects in sanitary sewer pipelines. We propose a three-step method to identify and extract cracks from contrast enhanced pipe images. This method is based on mathematical morphology and curvature evaluation that detects crack-like patterns in a noisy pipe camera scanned image. As cracks are the most common defects in pipes and are indicative of the residual structural strength of the pipe, they are the focus of this study. This article discusses its implementation on 225 pipe images taken from different cities in North America and shows that the system performs very well under a variety of pipe conditions.
- Subjects
NORTH America; CONCRETE sewers; UNDERGROUND pipelines; DATA analysis; PIPELINE maintenance &; repair; SEWERAGE
- Publication
Computer-Aided Civil & Infrastructure Engineering, 2006, Vol 21, Issue 6, p395
- ISSN
1093-9687
- Publication type
Article
- DOI
10.1111/j.1467-8667.2006.00445.x