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Inferring the most probable maps of underground utilities using Bayesian mapping model

Bilal, M, Khan, W, Muggleton, J, Rustighi, E, Jenks, H, Pennock, SR, Atkins, PR and Cohn, A (2018) Inferring the most probable maps of underground utilities using Bayesian mapping model. Journal of Applied Geophysics, 150. pp. 52-66. ISSN 0926-9851

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Abstract

Mapping the Underworld (MTU), a major initiative in the UK, is focused on addressing social, environmental and economic consequences raised from the inability to locate buried underground utilities (such as pipes and cables) by developing a multi-sensor mobile device. The aim of MTU device is to locate different types of buried assets in real time with the use of automated data processing techniques and statutory records. The statutory records, even though typically being inaccurate and incomplete, provide useful prior information on what is buried under the ground and where. However, the integration of information from multiple sensors (raw data) with these qualitative maps and their visualization is challenging and requires the implementation of robust machine learning/data fusion approaches. An approach for automated creation of revised maps was developed as a Bayesian Mapping model in this paper by integrating the knowledge extracted from sensors raw data and available statutory records. The combination of statutory records with the hypotheses from sensors was for initial estimation of what might be found underground and roughly where. The maps were (re)constructed using automated image segmentation techniques for hypotheses extraction and Bayesian classification techniques for segment-manhole connections. The model consisting of image segmentation algorithm and various Bayesian classification techniques (segment recognition and expectation maximization (EM) algorithm) provided robust performance on various simulated as well as real sites in terms of predicting linear/non-linear segments and constructing refined 2D/3D maps.

Item Type: Article
Uncontrolled Keywords: 0404 Geophysics, 0909 Geomatic Engineering
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
Divisions: Computer Science
Publisher: Elsevier
Date Deposited: 13 Nov 2019 10:09
Last Modified: 13 Nov 2019 10:09
DOI or Identification number: 10.1016/j.jappgeo.2018.01.006
URI: http://researchonline.ljmu.ac.uk/id/eprint/9918

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