Search results for "Arrays"

showing 10 items of 122 documents

A hardware skin-segmentation IP for vision based smart ADAS through an FPGA prototyping

2017

International audience; In this paper we presents a platform based design approach for fast HW/SW embedded smart Advanced Driver Assistant System (ADAS) design and prototyping. Then, we share our experience in designing and prototyping a HW/SW vision based smart embedded system as an ADAS that helps to increase the safety of car's drivers. We present a physical prototype of the vision ADAS based on a Zynq FPGA. The system detects the fatigue state of the driver by monitoring the eyes closure and generates a real-time alert. A new HW/SW codesign skin segmentation step to locate the eyes/face is proposed. Our presented new approach migrates the skin segmentation step from processing system (S…

car driver safetyComputer scienceautomotive electronicsFPGA Prototyping02 engineering and technology01 natural sciencesIP networkshardware skin segmentation IPhardware-software vision based smart embedded system[SPI]Engineering Sciences [physics]HardwareHigh-level synthesis0202 electrical engineering electronic engineering information engineeringSegmentationField-programmable gate arrayimage segmentationSkinfield programmable gate arraysVision basedbusiness.industry010401 analytical chemistryVehiclesobject detectionplatform based design0104 chemical sciences[SPI.TRON]Engineering Sciences [physics]/ElectronicsProgrammable logic devicedriver information systemsimage recognitionStreaming mediaembedded smart advanced driver assistant systemEmbedded systemFacefatigue state detectionPlatform-based design020201 artificial intelligence & image processingembedded systemsState (computer science)vision based smart ADASbusinesshardware-software codesignroad safetyComputer hardwareSoftwareFPGA prototype
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Estuio y caracterización de un perfil de miRNAs en el líquido peritoneal de pacientes con endometriosis para su posterior validación como herramienta…

2023

Se trata de un estudio retrospectivo, donde hemos descrito el contenido de miRNAs del líquido peritoneal de una cohorte de pacientes, por medio de dos procedimientos. Por una parte se han realizado arras de expresión para hacer un estudio previo y determinar que miRNAs se encontraban diferentemente expresados en el líquido peritoneal de las pacientes respecto de las controles. Posteriormente se ha llevado a cabo la segunda parte del estudio, validando por medio de la técnica RT-PCR aquellos micros diferentemente expresados. Hemos seleccionado los miRNAs que presentaban un particular interés en la etiopatogenia de la endometriosis. Así mismo también se han medido el contenido de diversos met…

endometriosisbiologia molecularminasUNESCO::CIENCIAS MÉDICASarraysfertilidadinterleuquinasginecologia
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FLUMO: FLexible Underwater MOdem

2019

The last years have seen a growing interest in underwater acoustic communications because of its applications in marine research, oceanography, marine commercial operations, the offshore oil industry and defense. High-speed communication in the underwater acoustic channel has been challenging because of limited bandwidth, extended multipath, refractive properties of the medium, severe fading, rapid time variation and large Doppler shifts. In this paper, we show an implementation of a flexible Software-Defined Acoustic (SDA) underwater modem, where modulation parameters are completely tunable to optimize performance. In particular, we develop the system architecture following two key ideas. …

extended multipathSDAOrthogonal frequency-division multiplexingComputer sciencemarine commercial operationsUnderwater; acoustic ; software defined ; modem; JANUS; SDA; FSK; RedPitaya; WatermarkSettore ING-INF/01 - ElettronicaacousticFSKmodulate signalsDemodulationcontrolled testbedsUnderwaterunderwater acoustic channelOFDMFrequency-shift keyingFLUMOunderwater acoustic communicationsBandwidth (signal processing)Frequency shift keyingflexible Software-Definedoffshore oil industrysoftware definedRedPitayaflexible underwater MOdemmodulated signalsmodulation parameterstunable systemrefractive propertiesMultipath propagationStandardssystem architectureDoppler shiftsunderwater acoustic communicationhigh-speed communicationflexible systemElectronic engineeringDoppler shiftFadingoceanographymodemSettore ING-INF/03 - Telecomunicazionirapid time variationField programmable gate arraysmarine researchmodemsJANUSWatermarkSystems architectureUnderwater
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Rare variant analyses across multiethnic cohorts identify novel genes for refractive error

2023

Refractive error, measured here as mean spherical equivalent (SER), is a complex eye condition caused by both genetic and environmental factors. Individuals with strong positive or negative values of SER require spectacles or other approaches for vision correction. Common genetic risk factors have been identified by genome-wide association studies (GWAS), but a great part of the refractive error heritability is still missing. Some of this heritability may be explained by rare variants (minor allele frequency [MAF] ≤ 0.01.). We performed multiple gene-based association tests of mean Spherical Equivalent with rare variants in exome array data from the Consortium for Refractive Error and Myopi…

genetic predisposition to diseaseperinnölliset tauditympäristötekijättaittovirheetperinnöllisyyslääketiederiskitekijätquantitative traitperiytyvyysgenome-wide association studiesquantitative trait lociperimäsilmätauditmicroarraysperinnöllisyys
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Estudio de la adaptación a estrés por etanol en cepas de Saccharomyces cerevisiae

2016

Los mecanismos de tolerancia a etanol han sido ampliamente estudiados en la levadura Saccharomyces cerevisiae debido a su importancia en el sector industrial de bebidas fermentadas y obtención de biocombustibles, siendo las cepas de laboratorio las más utilizadas en los estudios experimentales. A pesar del gran número de estudios llevados a cabo, nuestra comprensión de la respuesta transcripcional y fisiológica al etanol continúa siendo limitada debido al uso de cepas no adecuadas para este fin y la gran disparidad en las condiciones utilizadas. Además se ha dejado de lado el estudio de ciertas rutas de respuesta a estrés en levaduras, como la respuesta a proteínas desplegadas (UPR), cuya a…

levadurasSaccharomycesetanolUNESCO::CIENCIAS DE LA VIDAUPRmicroarrays:CIENCIAS DE LA VIDA [UNESCO]
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High Dynamic Range Spectral Imaging Pipeline For Multispectral Filter Array Cameras

2017

Spectral filter arrays imaging exhibits a strong similarity with color filter arrays. This permits us to embed this technology in practical vision systems with little adaptation of the existing solutions. In this communication, we define an imaging pipeline that permits high dynamic range (HDR)-spectral imaging, which is extended from color filter arrays. We propose an implementation of this pipeline on a prototype sensor and evaluate the quality of our implementation results on real data with objective metrics and visual examples. We demonstrate that we reduce noise, and, in particular we solve the problem of noise generated by the lack of energy balance. Data are provided to the community…

medicine.medical_specialtySimilarity (geometry)Computer sciencePipeline (computing)Multispectral imageComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONspectral imaging02 engineering and technology[ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processinglcsh:Chemical technology01 natural sciencesBiochemistryArticleAnalytical Chemistry010309 optics[SPI]Engineering Sciences [physics]Color gel0103 physical sciences[ INFO.INFO-TI ] Computer Science [cs]/Image Processing0202 electrical engineering electronic engineering information engineeringmedicine[ SPI ] Engineering Sciences [physics]Computer visionlcsh:TP1-1185Electrical and Electronic EngineeringInstrumentationHigh dynamic rangeComputingMilieux_MISCELLANEOUSbusiness.industryhigh dynamic rangespectral filter arraysAtomic and Molecular Physics and Opticsspectral imaging; spectral filter arrays; high dynamic range; image databaseSpectral imagingNoiseFilter (video)[INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV]020201 artificial intelligence & image processingArtificial intelligencebusiness[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processingimage database
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Implicación de los microARNs en la hipertensión pulmonar idiopática. Regulación farmacológica

2014

La hipertensión pulmonar (HP) es un desorden complejo que se caracteriza por un aumento progresivo de la presión arterial pulmonar, ocasionado por el remodelado de las arterias pulmonares de pequeño calibre, que origina un aumento de resistencias pulmonares y como consecuencia sobrecarga y fallo del ventrículo derecho que puede llevar al fallecimiento del paciente. La Organización mundial de la salud la clasifica en 5 grupos, en nuestro estudio nos hemos centrado en el grupo I, que se caracteriza por la afección de los vasos pulmonares de pequeño calibre, con una presión arterial pulmonar (PAP) media de ≥ 25 mmHg y ausencia de causas secundarias, este así mismo se subdivide en hipertensión …

mir-23a:CIENCIAS TECNOLÓGICAS [UNESCO]PPARyPGC-1αhipertensión pulmonar idiopáticaHPAIUNESCO::CIENCIAS TECNOLÓGICASTGFß1ciglitazonamicroarnsET1microarrayshipertensión pulmonar
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Sensors based on MultiSpectral Filter Arrays

2014

International audience; Spectral Filter arrays (SFA) is an emerging technology for multispectral image acquisition. SFAs make possible the use of a compact multispectral sensor to acquire still images or video. One part of this talk will present and compare typical multispectral and color image acquisition systems in order to clearly identify differences underlying SFA technologies. The other part of this talk will show the difficulties and advances that we have made at the University of Bourgogne in the building of such sensors from the design of filters to data processing, such as demosaicing.

multispectral acquisition[ INFO.INFO-TS ] Computer Science [cs]/Signal and Image Processing[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing[INFO.INFO-TS] Computer Science [cs]/Signal and Image ProcessingComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONMultispectral filter arrays[ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processingdemosaicing[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing[SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing
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Integración de la genómica en la modelización de los tumores neuroblásticos = Integration of genomics in neuroblastic tumors modeling

2015

*Introducción: El neuroblastoma es un tumor maligno embrionario del sistema nervioso simpático con una gran heterogeneidad en la presentación clínica, morfológica y genética y en otras características biológicas. La estratificación de grupos de riesgo pretratamiento se basa en los siguientes factores: edad, estadio, histopatológica del tumor, estado del oncogén MYCN, integridad del brazo cromosómico 11q y ploidía. Por otra parte, los cambios numéricos y estructurales detectados en el perfil genético se han incluido recientemente en la estratificación terapéutica de los pacientes con bajo riesgo a recaer o morir. El amplio espectro clínico de la enfermedad va desde pacientes con neuroblastom…

neuroblastomaSNP arraysFISHMYCN geneintratumoral heterogeneityUNESCO::CIENCIAS MÉDICAS11q deletion:CIENCIAS MÉDICAS [UNESCO]
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Phase-delayed laser diode array allows ultrasonic guided wave mode selection and tuning

2013

Selecting and tuning modes are useful in ultrasonic guided wave non-destructive testing (NDT) since certain modes at various center frequencies are sensitive to specific types of defects. Ideally one should be able to select both the mode and the center frequency of the launched waves. We demonstrated that an affordable laser diode array can selectively launch either the S0 or A0 ultrasonic wave mode at a chosen center frequency into a polymer plate. A fiber-coupled diode array (4 elements) illuminated a 2 mm thick acrylic plate. A predetermined time delay matching the selected mode and frequency was employed between the output of the elements. The generated ultrasound was detected by a 215…

nondestructive testingplates (structures)delayssemiconductor laser arraysacoustic receiversoptical fibre couplersacoustic waveguidesultrasonic wavespolymeeritlaser modeslaser tuning
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