Browsing Department of Physics by Title

Browsing Department of Physics by Title

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  • Vehicle Counting and Classification from a Traffic Scene 
    Pancharatnam, M.; Sonnadara, D.U.J. (2008)
    This work was carried out to determine the performance of image processing techniques in classifying and counting moving vehicles in video streams of traffic scenes recorded by stationary cameras. The detection and tracking ...
  • Vehicle Identification and Tracking using Images Sequence 
    Wimalaratna, L.G.C; Sonnadara, D.U.J. (2007)
    The real time measurement and analysis of various traffic parameters such as speed and number of vehicles are increasingly required in traffic control and management. Image processing techniques are now considered as an ...
  • Versatile multispectral microscope based on light emitting diodes 
    Brydegaard, Mikkel; Merdasa, Aboma; Hiran H. E. Jayaweera; Ålebring, Jens; Svanberg, Sune (2011)
    We describe the development of a novel multiculturalism microscope, based on light-emitting diodes,capable of acquiring megapixel images in thirteen spectral bands from the ultraviolet to the near infrared. The system ...
  • The very forward CASTOR calorimeter of the CMS experiment 
    Jayananda, M.K.; Sonnadara, D.U.J.; Wickramaratne, D.D.C. (IOP Publishing for Sissa Medialab, 2021)
    Abstract: The physics motivation, detector design, triggers, calibration, alignment, simulation, and overall performance of the very forward CASTOR calorimeter of the CMS experiment are reviewed. The CASTOR Cherenkov ...
  • Vibration Effects in Vehicular Road Transportation 
    Ranathunga, C. L.; Hiran H. E. Jayaweera; Suraweera, S. K. K.; Wattage, S. C.; Ruvinda, K. K. D. L.; Ariyaratne, T. R. (2010)
    This study focuses to certain elements of th e Road-Vehicle-Load system which are responsible for the inflicted damage to consignment during road transportation. Bruising injury depends on the energy absorbed by the ...
  • Virtual Instrumentation: A way to Build Low Cost Laboratory Instruments 
    Fernando, H.T.T.M.; Sonnadara, D.U.J. (1998)
    A detailed study on building virtual instruments using Personal Computers equipped with Sound Blaster cards was carried out. A computer with a Sound Blaster card can be used to create virtual instruments with a 44.1 KHz ...
  • Vitual Robot Arm Control Model 
    Kottege, D.N.D.; Sonnadara, D.U.J. (2004)
    A Six-axis Virtual Robot arm (SVR) was designed with adjustable kinematic parameters to mimic a 6-axis articulate robotic manipulator with revolute joints having 6 degrees of freedom. The screen based interface was ...
  • Wind Field Analysis using Optical Flow and Fuzzy Logic 
    Fernando, N.; Sonnadara, D.U.J. (Institute of Physics, Sri Lanka, 2013)
    Wind field analysis using optical flow is presented. The method is demonstrated for infrared images of clouds over the Indian Ocean region captured by the geostationary meteorological satellite METEOSAT-7 during one year ...
  • X-ray spectroscopic investigations of fluids in the hydrothermal diamond anvil cell: The hydration structure of aqueous La3+ up to 300 ∞C and 1600 bars 
    Anderson, J.; Jayanetti, J. K. D. S.; Mayanovic, Robert A.; Bassett, William A.; Chou, I-Ming (2002)
    The first direct measurements are reported for the structure of the hydrated La3+ ion in an aqueous solution (containing 0.007 m La) over a range of temperatures from 25 to 300 ∞C and pressures up to 1600 bars. The radial ...

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