Search results for "event-based vision"

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

Taking Advantage of Selective Change Driven Processing for 3D Scanning

2013

This article deals with the application of the principles of SCD (Selective Change Driven) vision to 3D laser scanning. Two experimental sets have been implemented: one with a classical CMOS (Complementary Metal-Oxide Semiconductor) sensor, and the other one with a recently developed CMOS SCD sensor for comparative purposes, both using the technique known as Active Triangulation. An SCD sensor only delivers the pixels that have changed most, ordered by the magnitude of their change since their last readout. The 3D scanning method is based on the systematic search through the entire image to detect pixels that exceed a certain threshold, showing the SCD approach to be ideal for this applicat…

Event-based visionLaser scanningComputer scienceTransducers3d scanninglcsh:Chemical technologySensitivity and SpecificityBiochemistryArticleAnalytical Chemistrylaw.inventionPhotometryPhotometry (optics)Imaging Three-DimensionallawInformàticaNyquist–Shannon sampling theoremComputer visionlcsh:TP1-11853D scanningElectrical and Electronic Engineeringhigh-speed visual acquisitionInstrumentationPixelbusiness.industryLasers3D reconstructionReproducibility of ResultsSignal Processing Computer-AssistedEquipment DesignImage EnhancementLaserAtomic and Molecular Physics and OpticsEquipment Failure AnalysisTransducerSemiconductorsCMOSArtificial intelligencebusinessHigh-speed visual acquisitionevent-based visionSensors
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