Results 31 to 40 of about 272,180 (347)
Diffractive triangulation of radiative point sources [PDF]
, 2016 We describe a general method to determine the location of a point source of waves relative to a two-dimensional active pixel detector. Based on the inherent structural sensitivity of crystalline sensor materials, characteristic detector diffraction ...
Maneuski, Dzmitry +4 more
core +6 more sources
Linear-Logarithmic CMOS Image Sensor with Reduced FPN Using Photogate and Cascode MOSFET
Proceedings, 2017 We propose a linear-logarithmic CMOS image sensor with reduced fixed pattern noise (FPN). The proposed linear-logarithmic pixel based on a conventional 3-transistor active pixel sensor (APS) structure has additional circuits in which a photogate and a ...
Myunghan Bae +6 more
doaj +1 more source
Programmable active pixel sensor to investigate neural interactions within the retina [PDF]
, 2009 Detection of the visual scene by the eye and the resultant neural interactions of the retina-brain system give us our perception of sight. We have developed an Active Pixel Sensor (APS) to be used as a tool for both furthering understanding of these ...
Hart MD +5 more
core +1 more source
IEEE Journal of the Electron Devices Society, 2020 In optical sensors and imagers, high gain that leads to high sensitivity and high signal to noise ratio (SNR) is often desirable. One popular approach is avalanche photomultiplication initiated by impact ionization in an avalanche photodiode or similar ...
Kai Wang +6 more
doaj +1 more source
Modeling the Performance of Single-Bit and Multi-Bit Quanta Image Sensors
IEEE Journal of the Electron Devices Society, 2013 Imaging performance metrics of single-bit and multi-bit photo-electron-counting quanta image sensors (QIS) are analyzed using Poisson arrival statistics. Signal and noise as a function of exposure are determined.
Eric R. Fossum
doaj +1 more source
Fire, 2020 The fire radiative power (FRP) of active fires (AFs) is routinely assessed with spaceborne sensors. MODIS is commonly used, and its 1 km nadir pixel size provides a minimum per-pixel FRP detection limit of ~5–8 MW, leading to undercounting of AF pixels ...
Samuel Sperling +2 more
doaj +1 more source
First bent wafer-scale sensor in truly-cylindrical geometry for the ALICE ITS3 detector [PDF]
EPJ Web of Conferences, 2022 An upgrade of the three innermost layers of the ALICE ITS, intended to be installed during the LHC Long Shutdown 3, is under development. The detector concept foresees the usage of curved, wafer-scale Monolithic Active Pixel Sensors.
Torres Ramos Arianna G.
doaj +1 more source
RTS noise reduction of CMOS image sensors using amplifier-selection pixels [PDF]
, 2013 This paper describes a RTS (random telegraph signal) noise reduction technique for an active pixel CMOS image sensor (CIS) with in-pixel selectable dual source-follower amplifiers.
Kagawa, Kiichiro +4 more
core +1 more source
CMOS Image Sensors for High Speed Applications
Sensors, 2009 Recent advances in deep submicron CMOS technologies and improved pixel designs have enabled CMOS-based imagers to surpass charge-coupled devices (CCD) imaging technology for mainstream applications.
M. Jamal Deen +5 more
doaj +1 more source
Performance of a Full-Scale Upstream MAPS-Based Verification Device for Radiotherapy
Sensors, 2023 Intensity-modulated radiotherapy is a widely used technique for accurately targeting cancerous tumours in difficult locations using dynamically shaped beams. This is ideally accompanied by real-time independent verification.
Jaap Velthuis +5 more
doaj +1 more source