EPFL
 Biomedical Imaging GroupSTI
EPFL
  Publications
English only   BIG > Publications > Flow Measurements


 CONTENTS
 Home Page
 News & Events
 People
 Publications
 Tutorials and Reviews
 Research
 Demos
 Download Algorithms

 DOWNLOAD
 PDF
 Postscript
 All BibTeX References

Flow Measurements in Sewer Systems Based on Image Analysis: Automatic Flow Velocity Algorithm

D. Jeanbourquin, D. Sage, L. Nguyen, B. Schaeli, S. Kayal, D.A. Barry, L. Rossi

Proceedings of the Seventh International Conference on Sustainable Techniques and Strategies in Urban Water Management (NOVATECH'10), Lyon, French Republic, June 27-July 1, 2010, pp. 180-189.



Discharges of combined sewer overflows (CSOs) and stormwater are recognized as an important source of environmental contamination. However, the harsh sewer environment and particular hydraulic conditions during rain events reduce the reliability of traditional flow measurement probes. An in situ system for sewer water flow monitoring based on video images was evaluated. Algorithm to determine water velocities was developed based on image-processing techniques. The image-based water velocity algorithm identifies surface features and measures their positions with respect to real world coordinates. A web-based user interface and a three-tier system architecture enable remote configuration of the cameras and the image-processing algorithms in order to calculate automatically flow velocity on-line. Results of investigations conducted in a CSO were presented. The system was found to measure reliably water velocities, thereby providing the means to understand particular hydraulic behaviors.


@INPROCEEDINGS(http://bigwww.epfl.ch/publications/jeanbourquin1001.html,
AUTHOR="Jeanbourquin, D. and Sage, D. and Nguyen, L. and Schaeli, B. and
        Kayal, S. and Barry, D.A. and Rossi, L.",
TITLE="Flow Measurements in Sewer Systems Based on Image Analysis:
        {A}utomatic Flow Velocity Algorithm",
BOOKTITLE="Proceedings of the Seventh International Conference on
        Sustainable Techniques and Strategies in Urban Water Management
        ({NOVATECH'10})",
YEAR="2010",
editor="",
volume="",
series="",
pages="180--189",
address="Lyon, French Republic",
month="June 27-July1,",
organization="",
publisher="",
note="")

© 2010 GRAIE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from GRAIE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.