Review of Quanta Image Sensors for Ultralow-Light Imaging
Jiaju Ma, Stanley H. Chan, Eric R. Fossum
Abstract
The quanta image sensor (QIS) is a photon-counting image sensor that has been implemented using different electron devices, including impact ionization-gain devices, such as the single-photon avalanche detectors (SPADs), and low-capacitance, high conversion-gain devices, such as modified CMOS image sensors (CIS) with deep subelectron read noise and/or low noise readout signal chains. This article primarily focuses on CIS QIS, but recent progress of both types is addressed. Signal processing progress, such as denoising, critical to improving apparent signal-to-noise ratio, is also reviewed as an enabling coinnovation.
Topics & Concepts
Image sensorNoise (video)SIGNAL (programming language)Photon countingCapacitanceOptoelectronicsCMOSDetectorNoise reductionPhotonPhysicsOpticsElectrical engineeringElectronic engineeringMaterials scienceComputer scienceImage (mathematics)EngineeringAcousticsArtificial intelligenceElectrodeProgramming languageQuantum mechanicsCCD and CMOS Imaging SensorsAdvanced Optical Sensing TechnologiesAdvanced Fluorescence Microscopy Techniques