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Microprocessor and Interface Lab
Swiss Federal Institute of Technology



DeTeC - Demining Technology Center at the EPFL

(Nov. 1995 - Dec. 1997)


Last completed activity: EUDEM2 Survey


Humanitarian Demining activities at LAMI started in 1994 on a mine detection robot. They then concentrated within the DeTeC project (1995-1997) on the development of a sensor suite for Antipersonnel Mine Detection; DeTeC also actively supported the exchange of information on demining technologies. Activities then continued at the EPFL-LAP by Claudio Bruschini working on his PhD thesis (metal detectors) and on the EUDEM2 Survey, in cooperation with VUB (Brussels), and independently by Frédéric Guerne (mechanical systems). Human demining related activities at the EPFL-LAP officially terminated at the end of 2004.

* Description * Team * Manifesto * Projects and Doc

Information on DeTeC

* GPR:
Hardware
* GPR
Software/Data
* Metal
Detectors
* Other
Sensors
* Robots

Technical Material

* Publications * Conferences * Links (QuickRef) * Links (ExtendedRef)

General Information and Bookmarks


DeTeC Description

The Demining Technology Center has been supported in 1996-97 by the Foundation Pro Victimis in Geneva, by the Swiss Departments of Foreign and of Military Affairs, and by the EPFL. This activity was triggered in 1994 by John Walker (http://www.fourmilab.ch/minerats/), who encouraged and supported the development of the Pemex robot, built by Ph. Maechler. Initial survey activities were carried out, a number of conferences attended and the WAPM'95 workshop organised in Lausanne during the summer of 1995. DeTeC, a part of the Microprocessors and Interfaces Lab (LAMI), was then born at the end of 1995. It has been staffed with 5 engineers until the end of 1997 (plus the support of the LAMI) and had three main objectives:

*To evaluate by the end of 1997 a Ground Penetrating Radar (GPR) sensor by doing extensive data acquisition on real fields, in order to better understand how to develop a system that reduces significantly the false alarm rate, through the combination of sensors, at least a metal detector (MD) and a GPR. To investigate the possibility of extracting additional information on the objects under analysis from metal detector data.
*To participate in long term research projects at the international level to develop better demining technologies (bio-sensors, low cost GPR, image processing, sensor fusion, robots, navigation sensors, etc.).
*To encourage information exchange on demining technologies, through the Web and related scientific conferences. To document research projects, to promote good ideas and help to field test and manufacture them.

DeTeC Team

The team consisted in 1996-97 of the following engineers:

* Claudio Bruschini:
MD, contacts, Web administrator
* Bertrand Gros:
GPR and processor interfaces
* Marc Schreiber:
System and human interface
* Frederic Guerne:
Mechanics, MD, robot, position sensors
* Pierre-Yves Piece:
Image processing
(part-time)
* Olivier Carmona:
Image processing
(part-time)

Other strongly concerned persons were:

*Prof Jean-Daniel Nicoud: Coordination

* Philippe Maechler:
Sensor fusion
* André Guignard:
Mechanics

DeTeC Manifesto

Engineers and other scientists can and should help in accelerating the speed of demining, lowering its cost and reducing the deminers' risks, by providing adequate - i.e. really usable in the field and cost-effective - tools, sensors and platforms. The problem is complex, involving not only the detection of individual mines and pieces of Unexploded Ordnance (UXO), but also the decision to declare a given area mine free or the delimitation of its real extension in case it is mined. And all this often in a number of very different scenarios.
Short to medium term "evolutionary" progress can come for example from improvements to: metal detectors, which give too many false alarms but indeed still represent a very valuable tool in most situations; prodders; the utilisation of dogs; protective equipment; remote detection of tripwires and stake/bounding mines; mechanical system, for example to remove the vegetation, and probably many more similar items.
Medium to long term improvements are expected on the sensor side for example from Ground Penetrating Radar and other microwave sensors; infrared imaging; sensors capable of detecting the explosive itself, i.e. trace explosive and odor detection systems (as an evolution of dogs' capabilities) or bulk explosive detection systems, etc. Great hope is also placed in multisensor devices and data fusion research, as well as remote (airborne) minefield detection.
Research on enhanced or new sensors and systems for the detection (and destruction) of landmines and Unexploded Ordnance (UXO) is urgent and important. Include this topic in your research priorities, but do not forget to stay in contact with deminers and pay a visit to a real minefield.

Any mine clearing method which is better than children's feet should be used until replaced by a better one - Prof S.H.Salter, Univ. Edinburgh (1996)


Projects and Documentation (DeTeC and following activities)

Activities/Projects:

*The Pemex Robot (1994-1995):
We quickly realized at the beginning of the project that the basic problem in humanitarian demining are still the sensors, possibly with the exception of specialized applications. In addition, the use of the Pemex robot (external Portrait Gallery) looks difficult to be generalized at the current cost level, since deminers are not paid much more than 1000-2000 US$ per year in countries such as Angola and Cambodia. Developments on the Pemex itself were therefore effectively frozen.
*Test System (1996):
A sand box with a Cartesian mechanism (gantry) for moving the sensor over the buried objects was built in early 1996 and extensively used to test different sensors, for data acquisition and software development under different conditions. See also the Current Status section below.
*Field Visits (1996, 1997):
Cambodia, November 1996; Croatia, Summer 1997; Cambodia, November 1997 (see also the LAMI Documentation below).
*Workshops organized (1995, 1997):
1995 WAPM Workshop at the EPFL.
SusDem97 Workshop in Zagreb. Proceedings/Book available from James Madison University (maic@jmu.edu).
*GPR Developments (1996-1997):
The initial goal was to effectively integrate a Ground Penetrating Radar with a metal detector. Over time we concentrated our efforts on a more realistic, albeit more limited, scenario (given the deminers' requirements, the time frame and the resources involved) in which a GPR is used by itself on alarms previously identified by a standard metal detector, and the radar data is made widely available. In parallel some activities were ongoing on the evaluation of metal detector data.
A trip to Cambodia, November 1996, has allowed to see the conditions on the field and prepare the data acquisition campaign carried out in November 1997. Note that we switched from a fully manual system (Detec-1) in mid 1997 to a final mechanically assisted manual version (Detec-2) after the tests in Croatia.
The raw data files taken in our sandbox as well as on the field are available on this site and on CD-ROM for those of you interested in developing radar data (image) processing and recognition algorithms.
*Post-DeTeC Status and Web Info (1998):
The projects we have co-submitted in 1996-97 to the European Commission were not accepted, and the DeTeC team does not exist any more. Activities might nevertheless continue on a small scale, especially where the accumulated experience can be best reused.
The DeTeC activities have been documented as much as possible (see below), and the same goes true for the material we acquired during the project (documentation, links to other Web sites, etc. - see all the links at the top). This site is still fully functional, containing amongst other things an extensive list of links and a large collection of GPR data. Parts of it has been taken care of by Claudio Bruschini within the framework of a VUB-EPFL collaboration.
The test system and the sensors have been transferred to the Free University of Brussels (VUB, see also http://www.minedet.etro.vub.ac.be/), where they will used in ongoing activities on the same subject and will be available to those interested as it happened when the equipment was installed at the EPFL.
*The EUDEM survey (1999) and EUDEM2 Support Measure (2001-2004):
The EUDEM survey project (The European Union in Humanitarian Demining) has been carried out as a VUB-EPFL collaboration. It was followed by the EUDEM2 three year EC sponsored support measure - please go directly to the EUDEM2 main page (http://www.eudem.vub.ac.be/) where the freeely accessible EUDEM2 DATABASE itself is actually stored, together with all the project's results.

Selected Documentation:

2001-2004

*EUDEM2 Reports
See directly the EUDEM2 Website.
*Bruschini04
C. Bruschini "On the Low Frequency EMI Response of Coincident Loops over a Conductive and Permeable Soil and Corresponding Background Reduction Schemes", IEEE Geoscience and Remote Sensing, vol. 42, No. 8, Aug. 2004, pp. 1706-1719.
*BruschiniPhD
C. Bruschini, ‘A Multidisciplinary Analysis of Frequency Domain Metal Detectors for Humanitarian Demining’. PhD Thesis, Vrije Universiteit Brussel (VUB, Belgium), Faculty of Applied Sciences, Sept. 2002, 230 pp., ISBN 3-89825-853-X.
Available online from http://www.eudem.vub.ac.be/ and http://www.dissertation.de/.
*Bruschini01
C. Bruschini "Commercial Systems for the Direct Detection of Explosives (for Explosive Ordnance Disposal Tasks)" (ExploStudy, Final Report). EPFL-DI-LAP Internal Note, Feb. 2001, 68 pp. See also a list of related links.
PDF copy (246 kB), compressed (zipped) PostScript version (451 kB).
(2 pages per sheet: PDF copy (246 kB), compressed (zipped) PostScript version (450 kB).)
.

2000

*Bruschini00c
C. Bruschini, H. Sahli "Phase angle based clutter reduction and 2D Imaging using data from a commercial differential two frequency EMI system", Proc. Euro EM 2000 (EuroElectromagnetics), Edinburgh, Scotland, 30 May - 2 June 2000.
(PDF copy of Extended abstract).
Copy of the slides are also available (565 kB) (PDF with images not downsampled (better quality, 950 kB))
.
*Cattin00
V. Cattin, C. Bruschini, A. Guiga, J.M. Ittel, J.M. Léger, J.C. Vidal "Landmine Detection System with NMR Gradiometer", Proc. Euro EM 2000 (EuroElectromagnetics), Edinburgh, Scotland, 30 May - 2 June 2000.
(PDF copy of Extended abstract).
Copy of the slides are also available (click on the individual images to enlarge). Contact Point: Viviane Cattin, CEA-LETI.
*Bruschini00b
C. Bruschini, H. Sahli "Phase angle based EMI object discrimination and analysis of data from a commercial differential two frequency system", SPIE AeroSense2000, Detection and Remediation Technologies for Mines and Minelike Targets V, SPIE Proceedings Vol. 4038, 24-28 April 2000, Orlando, FLA, USA.
PDF version (763 kB) and PDF with images not downsampled (better quality, 1.34 MB).
(A PDF copy in A4 format of the corresponding poster (421 kB) is also available (PDF with images not downsampled (better quality, 1.03 MB)).
*Bruschini00a
C. Bruschini "Metal Detectors in Civil Engineering and Humanitarian Demining: Overview and Tests of a Commercial Visualizing System", INSIGHT - Non-Destructive Testing and Condition Monitoring 42(2), pp. 89-97, February 2000.
(PDF version (400 kB) and PDF with images not downsampled (better quality, 2.2 MB). Published version of [Bruschini98b].)

1999

*Bruschini99b
C. Bruschini "Metal Detectors for Humanitarian Demining: from Basic Principles to Modern Tools and Advanced Developments", Invited Paper, MINE'99 (Mine Identification Novelties Euroconference), Florence (Italy), October 1-3, pp. 24-30.
(PDF version (168 kB) and PDF with images not downsampled (better quality, 498 kB))
Copy of the slides are also available (213 kB) (also page 12 in higher resolution).
*Bruschini99a
C. Bruschini "Improvements in a "mature" technology: Metal Detectors", Presentation (slides) at the "Intelligent Sensors and Data Fusion for Humanitarian De-mining" IST Consultation Meeting, 22/9/1999 (within the framework of the preparation of the IST Workplan 2000).
*EUDEM
C. Bruschini, K. de Bruyn, H. Sahli, J. Cornelis, J.-D. Nicoud "EUDEM: The EU in Humanitarian DEMining - Final Report (Study on the State of the Art in the EU related to humanitarian demining technology, products and practice)", EPFL-LAMI and VUB-ETRO, 30/07/1999 (628 kB).
Smaller PDF files are also available: Header & Document Structure - Introduction; Methods; The EUDEM Database (Ch. 1-3) - The State of the Art in Europe (Ch. 4) - ...; Conclusions and Discussions; ... (Ch. 5-8) - Annex 1-6 - Annex 7

Published in reduced form as: K. de Bruyn, C. Bruschini, H. Sahli, J. Cornelis, "EUDEM: The European Union in Humanitarian Demining", the Journal of Mine Action, Mine Action Information Center at James Madison University, Issue 4.1, Spring 2000, pp. 4-7,73.

1998

*Bruschini98b
C. Bruschini "Metal Detectors in Civil Engineering and Humanitarian Demining: Overview and Tests of a Commercial Visualizing System". LAMI-EPFL Internal Note, Nov. 1998.
(PDF version (397 kB) and PDF with images not downsampled (better quality, 2.59 MB))
Published in INSIGHT - Non-Destructive Testing and Condition Monitoring 42(2), pp. 89-97, February 2000. See [Bruschini00a].
*Bruschini98a
C. Bruschini, B. Gros, F. Guerne, P.-Y. Pièce, O. Carmona, "Ground Penetrating Radar and Induction Coil Sensor Imaging for Antipersonnel Mines Detection", Journal of Applied Geophysics 40 (1998) 59-71. Special Issue: GPR'96, ed. by M. Sato and R. Versteeg.
Published version of the GPR'96 presentation, see [Bruschini96a].
*Brooks98
J. Brooks, J.D. Nicoud "Applications of GPR Technology to Humanitarian Demining Operations in Cambodia: Some Lessons Learned", Third Annual Symposium on Technology and the Mine Problem, Mine Warfare Association, Monterey, CA, USA, 6-9.4.1998. Proceedings published on CD-ROM.
(PDF version (761 kB), compressed (gzip) PostScript Level 2 version (741 kB), compressed (gzip) PostScript Level 1 version (1.54 MB), Abstract only).
*Nicoud98a
J.D. Nicoud, F. Guerne, J. Brooks "Report on the DeTec-2 Testing in Cambodia, November 18-21 1998", The Journal of Humanitarian Demining, Issue 2.2, June 1998. Available online at http://maic.jmu.edu/journal/2.2/features/nicoud.htm.

1997

*Bruschini97c
C. Bruschini "Visualizing Metal Detector for Humanitarian Demining?", a one-page flyer produced for the LAMI-Mantra Day, EPFL-LAMI, December 5th, 1997
(PDF version (34 kB) and PDF with images not downsampled (better quality, 1.19 MB))
A PDF copy in A4 format of the corresponding poster (355 kB) is also available (PDF with images not downsampled (better quality, 2.8 MB)).
*Guerne97a
F. Guerne, B. Gros, M. Schreiber, J.D. Nicoud "DETEC-1 and DETEC-2: GPR Mine Sensors for Data Acquisition in the Field", SusDem'97, Zagreb (Croatia), 29 September-1 October 1997, pp. 5.34/5.39.
(PDF version (297 kB) and PDF with images not downsampled (better quality, 1.72 MB))
*Guerne97b
F. Guerne, "Building a Sandbox with a Cartesian Gantry for Sensor Testing", SusDem'97, Zagreb (Croatia), 29 September-1 October 1997, pp. 5.29/5.33.
(PDF version (351 kB) and PDF with images not downsampled (better quality, 2.92 MB))
*Nicoud97b
J.D. Nicoud, "Sensing TNT odors in the middle of a minefield", SusDem'97, Zagreb (Croatia), 29 September-1 October 1997, pp. 6.38/6.40.
*Bruschini97a
C. Bruschini, B. Gros, "A Survey of Current Sensor Technology Research for the Detection of Landmines", SusDem'97, Zagreb (Croatia), 29 September-1 October 1997, pp. 6.18/6.27.
(PDF version (430 kB) and PDF with images not downsampled (better quality, 2.1 MB)).
*Bruschini97b
C. Bruschini "Evaluation of a Commercial Visualizing Metal Detector for UXO/Mine Detection: the HILTI Ferroscan System ", SusDem'97, Zagreb (Croatia), 29 September-1 October 1997 (presented as poster, not included in the Proceedings).
(PDF version (348 kB) and PDF with images not downsampled (better quality, 1.74 MB))
*Nicoud97a
J.D. Nicoud, "Vehicles and Robots for Humanitarian Demining", Industrial Robot Journal, Vol 14 (2), 1997, pp. 164-168.

1996

*Bruschini96b
C. Bruschini "Overview of DeTeC Activities and AP Mine Detection "State of the Art"", Invited Presentation (slides) at the Brussels ERM (Ecole Royale Militaire) Workshop, 5/12/1996 (within the framework of the start of the Belgian HUDEM project on humanitarin demining).
*Nicoud96d
J.D. Nicoud, "GPR and Metal Detector Portable System", Technology and the Mine Problem Symposium, Monterey, CA, 18-21.11.1996, pp. 4.63-4.66.
*Nicoud96c
J.D. Nicoud, "Cooperation in Europe for Humanitarian Demining", Technology and the Mine Problem Symposium, Monterey, CA, 18-21.11.1996, pp. 4.57-4.61.
*Bruschini96a
C. Bruschini, B. Gros, F. Guerne, P.-Y. Pièce, O. Carmona, "Ground Penetrating Radar and Induction Coil Sensor Imaging for Antipersonnel Mines Detection", GPR'96, Sendai (Japan), 30 September-3 October 1996, pp. 211-216.
(PDF version (304 kB); PostScript compressed (1.16 MB) as gzip or pkunzip)
Published as "Ground penetrating radar and imaging metal detector for antipersonnel mine detection" in Journal of Applied Geophysics 40 (1998) 59-71. Special Issue: GPR'96, ed. by M. Sato and R. Versteeg.
*Gros96
B. Gros, C. Bruschini, "Sensor Technologies for the Detection of Antipersonnel mines. A survey of current research and system developments", ISMCR'96, Bruxelles, May 1996, pp. 564-569.
(PDF version, PostScript version: plain (655 kB) or compressed (168 kB))
*Nicoud96b
J.D. Nicoud, "Mine Clearance: not only a problem for the military any more", ISMCR'96, Bruxelles, May 1996, pp. 6-10.
*Nicoud96a
J.D. Nicoud, Ph. Maechler, "Robots for Anti-Personnel Mine Search", Control Engineering Practice, 4(4), April 1996.
*Perrig96
A. Perrig, et al., "Finding Anti-Personnel Mines in a GPR created image", Project of 7th Semester, LAMI, EPFL Lausanne, February 8th, 1996.

1995

*Nicoud95k
J.D. Nicoud, "L'Heritage du 20e siecle", SIA, Ingenieurs et Architectes suisses, No 23, 25 octobre 1995, pp. 446-453.
*Nicoud95g
J.D. Nicoud, M.K. Habib, "The Pemex-B Autonomous Demining Robots: Perception and Navigation Strategies", IROS'95, Pittsburg, August 5-9, 1995, pp. 419-424.
*Nicoud95f
J.D. Nicoud (ed.) Proceedings of the Workshop on Anti-Personnel Mine Detection and Removal, WAPM'95 Lausanne, 30.6-1.7 1995, 74 pages.
*Nicoud95e
J.D. Nicoud, Ph. Maechler, "Pemex-B a Low Cost Robot for Searching Anti-Personnel Mines", Proceedings of WAPM, Lausanne, June 30, July 1st, 1995, pp. 26-29.
*Nicoud95d
J.D. Nicoud, Ph. Maechler, Robots for Antipersonnel Mine Search, IAV'95, Espoo Finland, June 12-14 1995, pp 309-313.
*Nicoud95a
J.D. Nicoud et Ph. Maechler, Demining Robots, Proceedings of IAS-4 Conference, Karlsruhe, 27-30 March 95, pp 615-620.
*Maechler95a
Ph. Maechler, "Detection Technologies for Anti-Personnel Mines", Symposium on Autonomous Vehicles in Mine Countermeasures, Monterey, CA, 4-6.4.1995, pp. 6.150-6.154.
(PDF version, Compressed (gzip) PostScript version (1.22 MB). Attention: displaying OK, but there might be printing problems!)
*Nicoud95a
J.D. Nicoud, "Light weight demining robots", Symposium on Autonomous Vehicles in Mine Countermeasures, Monterey, CA, 4-6.4.1995, pp. 8.81-8.85.

http://diwww.epfl.ch/lami/detec/detec.html | Last modified by CB 20.12.2004.

Current Status of activities: completed (see the EUDEM2 Web Site).

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