Results 91 to 100 of about 3,517 (112)
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Journal of the Optical Society of America A, 2012
Photon-counting integral imaging has been introduced recently, and its applications in three-dimensional (3D) object sensing, visualization, recognition, and classification under photon-starved conditions have been demonstrated. This paper sheds light on the underlying information-theoretic foundation behind the ability of photon-counting integral ...
Hayat, Majeed M. +3 more
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Photon-counting integral imaging has been introduced recently, and its applications in three-dimensional (3D) object sensing, visualization, recognition, and classification under photon-starved conditions have been demonstrated. This paper sheds light on the underlying information-theoretic foundation behind the ability of photon-counting integral ...
Hayat, Majeed M. +3 more
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Optics Communications, 2020
Abstract Single photon counting compressive imaging, a very efficient implementation of compressed sensing theory in photon counting imaging, offers the advantages of low cost and ultra-high sensitivity. However, when performing high-resolution imaging, single photon counting compressive imaging needs a long imaging time due to a lot of measurements ...
Yanqiu Guan +5 more
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Abstract Single photon counting compressive imaging, a very efficient implementation of compressed sensing theory in photon counting imaging, offers the advantages of low cost and ultra-high sensitivity. However, when performing high-resolution imaging, single photon counting compressive imaging needs a long imaging time due to a lot of measurements ...
Yanqiu Guan +5 more
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Three dimensional photon counting integral imaging based on Bayesian adaptive reconstruction
Tenth International Conference on Digital Image Processing (ICDIP 2018), 2018Aiming at the problem of three dimensional reconstruction of photon-limited objects, a new method of Bayesian adaptive estimation is proposed based on the photon counting integral imaging (II) system to improve the quality of reconstructed depth slice images.
Qian Chen +5 more
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IEEE Transactions on Nuclear Science, 2015
Sphinx1 is a novel pixel architecture adapted for X-ray imaging that can detect radiation by photon counting and by charge integration. In photon counting mode, each photon is compensated by one or more counter-charge packets which can be dimensioned at a level as low as 100 electrons and the number of injected counter-charge packets indicates the ...
Habib, A. +6 more
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Sphinx1 is a novel pixel architecture adapted for X-ray imaging that can detect radiation by photon counting and by charge integration. In photon counting mode, each photon is compensated by one or more counter-charge packets which can be dimensioned at a level as low as 100 electrons and the number of injected counter-charge packets indicates the ...
Habib, A. +6 more
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Compression and reconstruction of photon counting integral imaging
Journal of Applied Optics, 2023CUI Yumin +4 more
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SPIE Proceedings, 2010
The author presents the maximum a posteriori (MAP) estimation method to estimate irradiance elemental images and reconstruct 3D images using photon-counting integral imaging. Elemental images are captured using the synthetic aperture integral imaging (SAII) technique. Photon-counting elemental images are generated using the Poisson distribution. The
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The author presents the maximum a posteriori (MAP) estimation method to estimate irradiance elemental images and reconstruct 3D images using photon-counting integral imaging. Elemental images are captured using the synthetic aperture integral imaging (SAII) technique. Photon-counting elemental images are generated using the Poisson distribution. The
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Photon-counting CT versus Energy-integrating Detector CT in Imaging Lung Cancer
RadiologyCompared with energy-integrating detector CT, photon-counting CT with a low radiation dose and reduced contrast agent protocol reduced the incidence of contrast-induced nephropathy and improved diagnostic confidence in patients with lung cancer.
Xiaofei Yang +10 more
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Distortion-tolerant object classification using photon counting three-dimensional integral imaging
SPIE Proceedings, 2007In this paper, we address distortion-tolerant object recognition using photon-counting three-dimensional (3D) integral imaging (II). A photon-counting linear discriminant analysis (LDA) is reviewed for classification of out-of-plane rotated objects. We also investigate the effect of a large number of photons and the irradiance change in training and ...
Seokwon Yeom +2 more
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3D Visualization at Low Light Levels Using Multispectral Photon Counting Integral Imaging
Journal of Display Technology, 2013Recently, three-dimensional (3D) object reconstruction using photon counting integral imaging (PCII) based on grayscale elemental images has been reported. In this paper, we present a multispectral PCII system using Bayer elemental images for multispectral visualization of photon limited 3D scenes.
null Inkyu Moon, I. Muniraj, B. Javidi
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3D object recognition with photon-counting integral imaging using independent component analysis
SPIE Proceedings, 2010The author presents an overview of 3D object recognition with photon-counting integral imaging using Independent Component Analysis (ICA). High resolution elemental images of 3D objects are captured at different angles to allow object recognition at different orientations using synthetic aperture integral imaging (SAII).
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