Results 281 to 290 of about 1,428,219 (313)
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2004 IEEE International Conference on Systems, Man and Cybernetics (IEEE Cat. No.04CH37583), 2005
In this paper, we present a real-time face detector using a hybrid template that characterizes face-like shapes and face texture patterns. The face detector consists of two main stages: (1) face shape detection based on a modified fast ellipse detection algorithm and (2) face candidate verification in which we define a set of face texture patterns and ...
null Si-Cheng Zhang, null Zhi-Qiang Liu
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In this paper, we present a real-time face detector using a hybrid template that characterizes face-like shapes and face texture patterns. The face detector consists of two main stages: (1) face shape detection based on a modified fast ellipse detection algorithm and (2) face candidate verification in which we define a set of face texture patterns and ...
null Si-Cheng Zhang, null Zhi-Qiang Liu
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Timing property of BGO-detector
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1993Abstract The timing property of the BGO-detector for time-of-flight capture cross-section measurement was investigated. Several methods were applied to determine the number η of photoelectrons per energy unit. The time response functions of the BGO-detector were measured and calculated.
N.V. Kornilov, N.N. Semenova
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Timing response of CdTe detectors
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1993Abstract Semiconductor CdTe detectors are gaining wide acceptance in many applications where X- and γ-ray measurements are necessary, such as in astrophysical research, medical imaging and industrial radiography. Good timing response is critical both in applications like positron emission tomography, where fast coincidence capabilities are required ...
Baldazzi G. +8 more
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Detector dead time in particle counting detectors
SPIE Proceedings, 2010Dead time in detectors limits the capability of the detector to work at high counting rates. A correction for dead time can be used to estimate the particle flux from a measurement. A motivation for operating detectors at high counting rates is to get the best statistical accuracy.
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Real-Time Population Health Detector
2004Abstract : The objective of the Bio-ALIRT is to evaluate the utility of non-traditional data sources to enable early detection of potential bio-terrorist attacks. Early detection will permit prompt intervention and appropriate treatment, potentially saving large numbers of lives and avoiding widespread infection among military and civilian populations.
Mark Musen, Gene McClellan
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Real-time Detectors for Muography
2023Different types of detectors can be used for muon radiography. Common to all detectors is the ability to track the direction of the incoming muon. Emulsion detectors have very high resolution and no need for electric power, but cannot give real-time information and cannot be used in all environmental conditions.
Ambrosino F., Saracino G.
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Timing Performance of TlBr Detectors
IEEE Transactions on Nuclear Science, 2013The timing performance of TlBr detectors was evaluated at room temperature (22 °C). 0.5-mm-thick planar TlBr detectors with Tl circular electrodes with a diameter of 3 mm were fabricated from TlBr crystals grown by the traveling molten zone method using a zone-purified material.
Keitaro Hitomi +6 more
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Detectors, reference frames, and time
2022This thesis is divided into three parts. Part I investigates the behaviour of Unruh-DeWitt detectors on curved spacetimes admitting a Wightman function and the associated measurement model is identified. These detectors are used to probe the vacuum state of a scalar field on Minkowski space, topological identifications of Minkowski space, the (2+1 ...
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Blind space-time multiuser detector
2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353), 2003Space-time transmission diversity schemes have been known to provide considerable spectral efficiency as compared to other prevalent schemes. Space-time codes are also essential to exploit the full potential in a multiple antenna system. We propose a new blind signal detection of a user in a multiple user case where each of the users has multiple ...
MISHRA, AKSHAY +2 more
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ALFA detector: timing and trigger
SPIE Proceedings, 2013ABSTRACT ATLAS is one of the four experiments at the LHC pp collider at CERN, Geneva. The experiment, designed to investigate wide range of physics processes, requires precise measurement RIDFFHOHUDWRU¶VOXPLQRVLW\WRpredict rates of processes with small cross sections (e.g. production of Higgs boson).
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