Results 21 to 30 of about 899,092 (345)
Polynomial Distributions and Transformations
Mathematics, 2023 Polynomials are common algebraic structures, which are often used to approximate functions, such as probability distributions. This paper proposes to directly define polynomial distributions in order to describe stochastic properties of systems rather ...
Yue Yu, Pavel Loskot
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Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose Treatment planning for head‐and‐neck (H&N) cancer, in particular oropharynx, nasopharynx, and paranasal sinus cases, at our center requires noncoplanar proton beams due to the complexity of the anatomy and target location. Targeting accuracy for all beams is carefully evaluated by using image guidance before delivering proton beam ...
Nrusingh C. Biswal +5 more
wiley +1 more source
Image Analysis and Stereology, 2011 The role of DNA content as a prognostic factor in colorectal cancer (CRC) is highly controversial. Some of these controversies are due to purely technical reasons, e.g.
Abdelbaset Buhmeida +3 more
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Dependence Representation Learning with Convolutional Neural Networks and 2D Histograms
Applied Sciences, 2020 Researchers frequently use visualizations such as scatter plots when trying to understand how random variables are related to each other, because a single image represents numerous pieces of information.
Taejun Kim, Han-joon Kim
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Distinguish of Arabic symbols printed using Cohen's neural network based on the histogram [PDF]
مجلة التربية والعلم, 2006 In this research histogram technique used lo extract the characteristic for. the images of Arabic characters, and evaluate their histogram values which used with Kohonen neural network as input, for recognizing the Arabic characters using intelligence ...
Najlaa Isaac +2 more
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Contour Extraction Based on Adaptive Thresholding in Sonar Images
Information, 2021 A common problem in underwater side-scan sonar images is the acoustic shadow generated by the beam. Apart from that, there are a number of reasons impairing image quality.
Antonios Andreatos, Apostolos Leros
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Color histogram specification by histogram warping [PDF]
SPIE Proceedings, 2005 Histogram warping is a novel histogram specification technique for use in color image processing. As a general purpose tool for color correction, our technique constructs a global color mapping function in order to transform the colors of a source image to match a target color distribution to any desired degree of accuracy.
Mark Grundland, Neil A. Dodgson
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Statistical process control to monitor use of a web‐based autoplanning tool
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose To investigate the use of statistical process control (SPC) for quality assurance of an integrated web‐based autoplanning tool, Radiation Planning Assistant (RPA). Methods Automatically generated plans were downloaded and imported into two treatment planning systems (TPSs), RayStation and Eclipse, in which they were recalculated using ...
Hunter Mehrens +5 more
wiley +1 more source
Treatment planning with a 2.5 MV photon beam for radiation therapy
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi +5 more
wiley +1 more source