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detection of floating mines in rivers

  • Using optical flow for the detection of floating mines in

    Our main concern is the detection of floating mines, which proved a real threat to shipping in confined waterways during the first Gulf War, but applications include salvaging, search-and-rescue

  • Matched filter based detection of floating mines in IR

    Ship-based automatic detection of small floating objects on an agitated sea surface remains a hard problem. Our main concern is the detection of floating mines, which proved a real threat to shipping in confined waterways during the first Gulf War, but applications include salvaging,search-and-rescue and perimeter or harbour defense. IR video was chosen for its day-and-night imaging capability

  • Author: Alexander Borghgraef, Fabian Lapierre, Wilfried Philips, Marc Acheroy
  • Using optical flow for the detection of floating mines in

    Sep 01, 2006· In the first Gulf War, unmoored floating mines proved to be a real hazard for shipping traffic. An automated system capable of detecting these and other free-floating small objects, using readily available sensors such as infra-red cameras, would prove to be a valuable mine-warfare asset, and could double as a collision avoidance mechanism, and a search-and-rescue aid.

  • Cited by: 2
  • Matched filter based detection of floating mines in IR

    Ship-based automatic detection of small floating objects on an agitated sea surface remains a hard problem. Our main concern is the detection of floating mines, which proved a real threat to shipping in confined waterways during the first Gulf War, but applications include salvaging,search-and-rescue and perimeter or harbour defense.

  • Author: Alexander Borghgraef, Fabian Lapierre, Wilfried Philips, Marc Acheroy
  • Relational Abstract Domains for the Detection of Floating

    Floating-PointIntervalAnalysis.Interval analysis is a non-relational Ab-stractInterpretation-basedanalysiswhere,ateachprogrampointandforeach variable, the set of its possible values during all executionsreaching this point is over-approximated by an interval. An abstract environment ‰] is a func-tion mapping each variable v 2Vf to an element

  • We floated one of the rivers Pebble Mine would permanently

    Good fishing is well-guarded, and rightfully so. But the secret of Bristol Bay’s Koktuli River is out of the bag for one reason: the Koktuli stands to be fully altered from its natural state by the proposed Pebble Mine, whose operation would remove thousands of gallons of water from the small salmon spawning stream each and every day, replacing it with waste water and, ultimately, leave

  • Detection of floating mines in infrared sequences by

    May 10, 2012· Automatic detection of oating mines by passive sensing is of major interest, yet remains a hard problem. In this paper, we propose an algorithm to detect them in infrared sequences, based on their geometry, provided by spatial derivatives.

  • CiteSeerX — Detection of floating mines in infrared

    BibTeX @MISC{A_detectionof, author = {Dominique Florins A and Antoine Manzanera A}, title = {Detection of floating mines in infrared sequences by multiscale}, year = {}}

  • Detection of floating mines in infrared sequences by

    Automatic detection of oating mines by passive sensing is of major interest, yet remains a hard problem. In this paper, we propose an algorithm to detect them in infrared sequences, based on their geometry, provided by spatial derivatives. In infrared images, oating mines contrast with the sea due to the dierence of emissivity at low incidence angles: they form bright elliptical areas.

  • Matched filter based detection of floating mines in IR

    Ship-based automatic detection of small floating objects on an agitated sea surface remains a hard problem. Our main concern is the detection of floating mines, which proved a real threat to shipping in confined waterways during the first Gulf War, but applications include salvaging,search-and-rescue and perimeter or harbour defense. IR video was chosen for its day-and-night imaging capability

  • Using optical flow for the detection of floating mines in

    In the first Gulf War, unmoored floating mines proved to be a real hazard for shipping traffic. An automated system capable of detecting these and other free-floating small objects, using readily available sensors such as infra-red cameras, would prove to be a valuable mine-warfare asset, and could double as a collision avoidance mechanism, and a search-and-rescue aid.

  • State signs off on copper mine near Smith River

    Apr 10, 2020· “You have thousands of people who float the Smith River every year, that provides hundreds of jobs. We would hate to see that risked.” The mine, about 17 miles north of White Sulphur Springs, would be underground, accessed by a 5,000-foot tunnel that

  • Detection of floating mines in infrared sequences by

    International audienceAutomatic detection of floating mines by passive sensing is of major interest, yet remains a hard problem. In this paper, we propose an algorithm to detect them in infrared sequences, based on their geometry, provided by spatial derivatives. In infrared images, floating mines contrast with the sea due to the difference of

  • History and Technology Mine Warfare NavWeaps

    The environment of rivers is not an easy one for either offensive or defensive mine warfare operations. The combination of fast-flowing waters and silt-covered beds makes conventional mining activities very difficult. Usually resort is made to floating mines which are dropped in upstream of the target and allowed to run down into the target.

  • Hydrometry: measuring the flow rate of a river, why and

    The Amazon is an extremely regular river. On the other hand, an African river like the Chari has an average flow of 1197 m 3 /s at its outlet in Lake Chad. Within the same year, the variation in flow between two extreme months is a factor of 20 (150 to 3000 m 3 /s).

  • Sea-Mines: The Most Lethal Naval Weapon on the Planet

    Sep 01, 2016· The AQS-24B towed mine hunting sensor is already being used by the U.S. Navy. According to Northrop, the AQS-24 features the world's only high speed synthetic aperture sonar for mine detection

  • Floating houses: an adaptation strategy for flood

    examples of floating buildings all over the world (fig. 3). Figure 3: Seoul, floating amusement park opened 2011, Hangang river at night. 2.2 Examples in Germany The following figures represent examples of buildings in Germany floating on lakes of former opencast mines. Figure 4: Floating houses type “Ar-che” in the Lusatian landscape.

  • Mine Warfare in the Civil War The Campaign for the

    Before departing Vicksburg, Rains left behind a few shells buried in the river bank that were found and disabled when the Confederate forces surrendered the city. Other mines placed along two roads leading out of the town slowed the Union approach to Jackson, the state capital.

  • A novel ocean color index to detect floating algae in the

    Oct 01, 2009· Various types of floating algae have been reported in open oceans and coastal waters, yet accurate and timely detection of these relatively small surface features using traditional satellite data and algorithms has been difficult or even impossible due to lack of spatial resolution, coverage, revisit frequency, or due to inherent algorithm limitations.

  • Mines Federation of American Scientists

    Mine warfare began in 1776 when David Bushnell invented the "Bushnell's Keg." This primitive mine was composed of a watertight keg filled with black powder and a flintlock detonator which was suspended from a float. These kegs were placed in the Delaware River so that, it was hoped, they would float into British ships downriver.

  • CiteSeerX — Detection of floating mines in infrared

    BibTeX @MISC{A_detectionof, author = {Dominique Florins A and Antoine Manzanera A}, title = {Detection of floating mines in infrared sequences by multiscale}, year = {}}

  • Matched filter based detection of floating mines in IR

    Ship-based automatic detection of small floating objects on an agitated sea surface remains a hard problem. Our main concern is the detection of floating mines, which proved a real threat to shipping in confined waterways during the first Gulf War, but applications include salvaging,search-and-rescue and perimeter or harbour defense. IR video was chosen for its day-and-night imaging capability

  • Detection of floating mines in infrared sequences by

    International audienceAutomatic detection of floating mines by passive sensing is of major interest, yet remains a hard problem. In this paper, we propose an algorithm to detect them in infrared sequences, based on their geometry, provided by spatial derivatives. In infrared images, floating mines contrast with the sea due to the difference of

  • Hydrometry: measuring the flow rate of a river, why and

    The Amazon is an extremely regular river. On the other hand, an African river like the Chari has an average flow of 1197 m 3 /s at its outlet in Lake Chad. Within the same year, the variation in flow between two extreme months is a factor of 20 (150 to 3000 m 3 /s).

  • History and Technology Mine Warfare NavWeaps

    The environment of rivers is not an easy one for either offensive or defensive mine warfare operations. The combination of fast-flowing waters and silt-covered beds makes conventional mining activities very difficult. Usually resort is made to floating mines which are dropped in upstream of the target and allowed to run down into the target.

  • Mines Federation of American Scientists

    Mine warfare began in 1776 when David Bushnell invented the "Bushnell's Keg." This primitive mine was composed of a watertight keg filled with black powder and a flintlock detonator which was suspended from a float. These kegs were placed in the Delaware River so that, it was hoped, they would float into British ships downriver.

  • A novel ocean color index to detect floating algae in the

    Oct 01, 2009· Various types of floating algae have been reported in open oceans and coastal waters, yet accurate and timely detection of these relatively small surface features using traditional satellite data and algorithms has been difficult or even impossible due to lack of spatial resolution, coverage, revisit frequency, or due to inherent algorithm limitations.

  • Sea-Mines: The Most Lethal Naval Weapon on the Planet

    Sep 01, 2016· The AQS-24B towed mine hunting sensor is already being used by the U.S. Navy. According to Northrop, the AQS-24 features the world's only high speed synthetic aperture sonar for mine detection

  • Mine Warfare in the Civil War The Campaign for the

    Before departing Vicksburg, Rains left behind a few shells buried in the river bank that were found and disabled when the Confederate forces surrendered the city. Other mines placed along two roads leading out of the town slowed the Union approach to Jackson, the state capital.

  • Mines of the United States of America NavWeaps

    Used a protruding float made of cork, 3 feet (0.91 m) long, for inertia ignition contact with a ship made the mine rotate relative to the float. Launched from trolley rails. Production started around 1915 and by 1917 the Portsmouth Navy Yard was manufacturing 140 of these per week with plans to ramp up production to 500 per week.

  • 6 Arizona Rivers where you Can Successfully Find Gold

    Mar 20, 2017· Gold was contained in old river gravels resting on the conglomerate in some of the curves. The Smuggler placer mine was at a bend in the San Francisco River. The gravels in this area contained much fine gold. 5. Santa Maria River . North of Hillside Station near the Santa Maria River was the Mammoth or Hubbard Mine, which produced some lode

  • MINISTRY OF NATURAL RESOURCES AND ENVIRONMENT

    river bank erosion, river bed degradation, river buffer zone encroachment and deterioration of river water quality. Very often, over-mining occurs which jeopardises the health of the river and the environment in general. There is a need for the Department of Irrigation and Drainage (DID) to be equipped with the

  • Arkansas River Gold Prospecting Locations

    Mar 25, 2017· Early Gold Mining on the Arkansas River . Gold was first discovered on the river in the 1540s by Spanish prospectors. Most of the early mining was small operations by Spanish miners. Today these old mines are simply known as the Old Spanish Diggings. These was relatively small mining

  • Impacts of Copper on Aquatic Ecosystems and Human Health

    mines to surface water and groundwater. Frances Solomon is an Adjunct Professor at the Norman B. Keevil Institute of Mining Engineering, University of British Columbia, Vancouver, B.C. For further information on the toxic effects of copper and other metals that are mined or emitted as by-products of mining, register for the online EduMine course

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