نتایج جستجو برای: detector size

تعداد نتایج: 610639  

2008
Zong Tian Montasir Abbas

in length and width than their actual size. The perceived larger vehicle size can also result in various occlusion scenarios (5–7). Occlusion of a detector can result in increased detector occupancy and false detections when no vehicles actually exist at the detector location. Occlusion of a following vehicle can also result in missing detections. Several studies have been conducted regarding v...

ژورنال: :بیولوژی کاربردی 0

شهین مرادنسب بدرآبادی 1، داریوش سرداری2، میترا اطهری2آشکارسازهای ذرات یا پرتو ابزاری هستند که با آن ها ذرات پرانرژی را آشکار، ردیابی یا شناسایی می کنند. یکی از این آشکارسازها گالیم آرسناید (gaas) می باشد. مشکلات در تولید لایه های ضخیم با دوپینگ (ناخالص سازی یا تغلیظ) به اندازه کافی کم نیاز به عمق های تهی سازی کافی (بیشتر از 100 میکرومتر) داشت، در حالی که مانع توسعه بیشتر می شدند. سپس، علاقه جدی...

Journal: :CoRR 2013
Firas A. Jassim

This paper proposes a novel method which combines both median filter and simple standard deviation to accomplish an excellent edge detector for image processing. First of all, a denoising process must be applied on the grey scale image using median filter to identify pixels which are likely to be contaminated by noise. The benefit of this step is to smooth the image and get rid of the noisy pix...

Journal: :Applied optics 1997
J R Mourant T Fuselier J Boyer T M Johnson I J Bigio

Predictions from Mie theory regarding the wavelength dependence of scattering in tissue from the near UV to the near IR are discussed and compared with experiments on tissue phantoms. For large fiber separations it is shown that rapid, simultaneous measurements of the elastic scatter signal for several fiber separations can yield the absorption coefficient and reduced scattering coefficient. Wi...

Journal: :Computer Vision, Graphics, and Image Processing 1989
Lucas J. van Vliet Ian T. Young Guus L. Beckers

An edge detection scheme is developed robust enough to perform well over a wide range of signal-to-noise ratios. It is based upon the detection of zero crossings in the output image of a nonlinear Laplace filter. Specific characterizations of the nonlinear Laplacian are its adaptive orientation to the direction of the gradient and its inherent masks which permit the develop ment of approximatel...

2001
Jungwon Kim Peter J. Bentley

This paper explores the use of an artificial immune system (AIS) for network intrusion detection. As one significant component for a complete AIS, static clonal selection with a negative selection operator is developed and the system is described in detail. Two important factors, the detector sample size and the antigen sample size, are investigated in order to generate an appropriate mixture o...

2001
A. Donini D. Meloni

We upgrade the study of the physical reach of a Neutrino Factory in the Four Family Neutrino Mixing scenario taking into account the latest LSND results that points out how the 3+1 scheme cannot be completely ruled out within the present experimental data (although the 2+2 scheme is still the preferred choice when four neutrinos are considered). A detailed comparison of the physical reach of th...

Journal: :Journal of synchrotron radiation 2015
Yakov I Nesterets Timur E Gureyev Sheridan C Mayo Andrew W Stevenson Darren Thompson Jeremy M C Brown Marcus J Kitchen Konstantin M Pavlov Darren Lockie Francesco Brun Giuliana Tromba

Results are presented of a recent experiment at the Imaging and Medical beamline of the Australian Synchrotron intended to contribute to the implementation of low-dose high-sensitivity three-dimensional mammographic phase-contrast imaging, initially at synchrotrons and subsequently in hospitals and medical imaging clinics. The effect of such imaging parameters as X-ray energy, source size, dete...

2009
Albert Bifet Geoff Holmes Bernhard Pfahringer Ricard Gavaldà

We propose two new improvements for bagging methods on evolving data streams. Recently, two new variants of Bagging were proposed: ADWIN Bagging and Adaptive-Size Hoeffding Tree (ASHT) Bagging. ASHT Bagging uses trees of different sizes, and ADWIN Bagging uses ADWIN as a change detector to decide when to discard underperforming ensemble members. We improve ADWIN Bagging using Hoeffding Adaptive...

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