Results 1 to 10 of about 177,954 (177)

Photon statistics without counting photons [PDF]

open access: yesPhysical Review A, 2004
We show how to obtain the photon distribution of a single-mode field using only avalanche photodetectors. The method is based on measuring the field at different quantum efficiencies and then inferring the photon distribution by maximum-likelihood ...
Olivares, Stefano   +2 more
core   +2 more sources

Experimental reconstruction of photon statistics without photon counting [PDF]

open access: yesPhysical Review Letters, 2005
Experimental reconstructions of photon number distributions of both continuous-wave and pulsed light beams are reported. Our scheme is based on on/off avalanche photodetection assisted by maximum-likelihood estimation and does not involve photon counting.
Andreoni, A.   +7 more
core   +6 more sources

Photon counting compressive depth mapping [PDF]

open access: yesOptics Express, 2013
We demonstrate a compressed sensing, photon counting lidar system based on the single-pixel camera. Our technique recovers both depth and intensity maps from a single under-sampled set of incoherent, linear projections of a scene of interest at ultra-low
Howell, John C.   +3 more
core   +6 more sources

Lensless Three-Dimensional Imaging under Photon-Starved Conditions

open access: yesSensors, 2023
In this paper, we propose a lensless three-dimensional (3D) imaging under photon-starved conditions using diffraction grating and computational photon counting method.
Jae-Young Jang, Myungjin Cho
doaj   +1 more source

Photon-counting statistics-based support vector machine with multi-mode photon illumination for quantum imaging

open access: yesScientific Reports, 2022
We propose a photon-counting-statistics-based imaging process for quantum imaging where background photon noise can be distinguished and eliminated by photon mode estimation from the multi-mode Bose–Einstein distribution.
Jin-Woo Kim   +5 more
doaj   +1 more source

Photon-counting CT review [PDF]

open access: yesPhysica Medica, 2020
Photon-counting detectors are a promising new technology for computed tomography (CT) systems. They provide energy-resolved CT data at very high spatial resolution without electronic noise and with improved tissue contrasts. This review article gives an overview of the principles of photon-counting detector CT, of potential clinical benefits and ...
Thomas Flohr   +5 more
openaire   +2 more sources

Investigation on X-ray Photocurrent Response of CdZnTe Photon Counting Detectors

open access: yesSensors, 2020
Counting rate is an important factor for CdZnTe photon counting detectors as high-flux devices. Until recently, there has been a lack of knowledge on the relationship between X-ray photocurrent response and the photon counting performance of CdZnTe ...
Yingrui Li   +5 more
doaj   +1 more source

Development and Challenge of Large Container Photon-counting Imaging Technology

open access: yesJournal of Isotopes, 2023
The photon-counting detectors with great application potential, have brought technological innovation to radiation imaging fields. With energy resolving capability, photon-counting detectors will help to enhance radiation image quality, lower radiation ...
ZHANG Huaxia;WU Zhifang
doaj   +1 more source

Spectral Photon-Counting Computed Tomography: A Review on Technical Principles and Clinical Applications

open access: yesJournal of Imaging, 2022
Photon-counting computed tomography (CT) is a technology that has attracted increasing interest in recent years since, thanks to new-generation detectors, it holds the promise to radically change the clinical use of CT imaging.
Mario Tortora   +5 more
doaj   +1 more source

Simulation of Target Tracking based on Photon-counting Laser Ranging System

open access: yesGuangtongxin yanjiu, 2022
As the single photon detection greatly improves the sensitivity of a traditional detector, it has enormous potentiality in distance measuring. Photon-counting laser ranging is able to extract the target's trajectory from large amounts of echo information
JIANG Yan   +5 more
doaj   +3 more sources

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