Search results for "CMOS image sensor"

showing 3 items of 3 documents

A Selective Change Driven System for High-Speed Motion Analysis.

2016

Vision-based sensing algorithms are computationally-demanding tasks due to the large amount of data acquired and processed. Visual sensors deliver much information, even if data are redundant, and do not give any additional information. A Selective Change Driven (SCD) sensing system is based on a sensor that delivers, ordered by the magnitude of its change, only those pixels that have changed most since the last read-out. This allows the information stream to be adjusted to the computation capabilities. Following this strategy, a new SCD processing architecture for high-speed motion analysis, based on processing pixels instead of full frames, has been developed and implemented into a Field …

Data streamMotion analysisLaser scanningComputer scienceReal-time computing02 engineering and technologylcsh:Chemical technology01 natural sciencesBiochemistryArticleAnalytical ChemistryInformàtica0202 electrical engineering electronic engineering information engineeringlcsh:TP1-1185data-flow architectureElectrical and Electronic EngineeringImage sensorhigh-speed visual acquisitionField-programmable gate arrayInstrumentationDataflow architecturePixellaser scanning020208 electrical & electronic engineering010401 analytical chemistryFrame (networking)Arquitectura d'ordinadorsAtomic and Molecular Physics and Optics0104 chemical sciencesCMOS image sensor; event-based vision; high-speed visual acquisition; data-flow architecture; FPGA system; laser scanningCMOS image sensorevent-based visionFPGA systemSensors (Basel, Switzerland)
researchProduct

Gamma-ray irradiation tests of CMOS sensors used in imaging techniques

2014

Technologically-enhanced electronic image sensors are used in various fields as diagnostic techniques in medicine or space applications. In the latter case the devices can be exposed to intense radiation fluxes over time which may impair the functioning of the same equipment. In this paper we report the results of gamma-ray irradiation tests on CMOS image sensors simulating the space radiation over a long time period. Gamma-ray irradiation tests were car ried out by means of IGS-3 gamma irradiation facility of Palermo Uni ver sity, based on 60Co sources with dif fer ent ac tiv i ties. To re duce the dose rate and re al ize a nar row gamma-ray beam, a lead-collimation sys tem was pur posely …

Materials scienceimaging technique CMOS image sensor gamma irradiationPixelSettore ING-IND/20 - Misure E Strumentazione Nuclearibusiness.industryImage qualityRadiationimaging techniqueSettore ING-INF/01 - Elettronicagamma irradiationBackground noiseNuclear Energy and EngineeringCMOSCMOS image sensorAbsorbed doseOptoelectronicslcsh:QC770-798lcsh:Nuclear and particle physics. Atomic energy. RadioactivityIrradiationImage sensorSafety Risk Reliability and QualitybusinessNuclear Technology and Radiation Protection
researchProduct

Selective Change Driven Imaging: A Biomimetic Visual Sensing Strategy

2011

Selective Change Driven (SCD) Vision is a biologically inspired strategy for acquiring, transmitting and processing images that significantly speeds up image sensing. SCD vision is based on a new CMOS image sensor which delivers, ordered by the absolute magnitude of its change, the pixels that have changed after the last time they were read out. Moreover, the traditional full frame processing hardware and programming methodology has to be changed, as a part of this biomimetic approach, to a new processing paradigm based on pixel processing in a data flow manner, instead of full frame image processing.

Motion analysisComputer scienceComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONImage processinglcsh:Chemical technologyBiochemistryArticleAnalytical ChemistryMotionArtificial IntelligenceDigital image processingImage Processing Computer-AssistedComputer SimulationComputer visionlcsh:TP1-1185biomimeticsElectrical and Electronic EngineeringImage sensorInstrumentationPixelbusiness.industrymotion analysisFrame (networking)Atomic and Molecular Physics and OpticsCMOS image sensorArtificial intelligencebusinessAlgorithmsevent-based visionSensors
researchProduct