Image Sensors
Mostrando 1-12 de 57 artigos, teses e dissertações.
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1. COMPARING A SINGLE-SENSOR CAMERA WITH A MULTISENSOR CAMERA FOR MONITORING COFFEE CROP USING UNMANNED AERIAL VEHICLES
ABSTRACT There exist two options for digital cameras that can capture the near-infrared (NIR) band. Conventional red–green–blue (RGB, visible bands) cameras with a single sensor provide NIR band visibility based on the removal of the internal NIR-blocking filter. Alternatively, multisensor cameras exist that have a specific sensor for each band. The modi
Eng. Agríc.. Publicado em: 2021-02
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2. Desenvolvimentos mecânicos e computacionais de suporte às medidas com sensores termoelásticos
The hydrostatic pressure inside the cell or simply cell turgor is an important component of texture in vegetables and is directly related to firmness. The decrease in cell turgor of plant organs is also an indicator of loss of tissue water. This effect can be perceived visually by wilting accompanied by a dry appearance with the loss of brightness and color
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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3. Desenvolvimento de sistema eletrônico para tomografia de indução magnética / Electronic system development for magnetic induction tomography
Magnetic induction tomography is a contactless conductivity imaging technique. This technique uses a magnetic field generator (usually a coil) to induce Eddy currents in the target object and several magnetic sensors (usually coils as well) that capture the magnetic field generated by these induced currents. The measurements obtained by these sensors can be
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/08/2011
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4. On-line SLAM using clustered landmarks with omnidirectional vision
The problem of SLAM (simultaneous localization and mapping) is a fundamental problem in autonomous robotics. It arises when a robot must create a map of the regions it has navigated while localizing itself on it, using results from one step to increase precision in another by eliminating errors inherent to the sensors. One common solution consists of establi
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12
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5. A conceptual image-based data glove for computer-human interaction
Data gloves are devices equipped with sensors that capture the movements of the hand of the user in order to select or manipulate objects in a virtual world. Data gloves were introduced three decades ago and since then have been used in many 3D interaction techniques. However, good data gloves are too expensive and only a few of them can perceive the full se
Publicado em: 2010
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6. O uso de imagens do Sensor Aster no mapeamento de unidades vulcano-sedimentares do Platô da Ramada, Vila Nova do Sul, RS
The remote sensing products which are generated by orbitals sensors of middle spatial and spectral resolution and the development of new technique of digital image processing has been a auxiliary tool in the basic geological surveys. In this work was utilized images obtained from the ASTER sensor (Advanced Spaceborne Thermal Emission and Reflection Radiomete
Publicado em: 2010
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7. A mobile robot autonomous navigation integrated system / Um sistema integrado para navegação autônoma de robôs móveis
Environment mapping has been a great challenge for many researchers in the autonomous navigation area. There are two important paradigms for mapping, metric and topological mapping. Several mapping methods that combine the advantages of each paradigm have been proposed. This project consists to the adaptation and extension of a mobile robots autonomous navig
Publicado em: 2010
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8. Robô autômato para monitoramento de rebanho e medição da forragem do pasto / Automated robot for monitoring and measuring livestock grazing
The growth of the cattle is following the global population growth and has put strong pressure on pastures. A pasture overloaded initially reduces the productivity of pastures without due care end up becoming great deserts. This project is inserted into this context and aims to develop a robot automaton able to get around in the pasture, monitor the catle an
Publicado em: 2010
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9. Tomografia de impulso para estimativa da densidade da madeira / Impulse tomography for wood density estimate
There are several techniques which use the passage of waves through wood to obtain information. Among them the tomography of trees is emphasized, reconstructing cross sections of trunk and branches. The impulse tomography is based on the timing of mechanical sound wave travelling between sensors attached to a cross section of the tree, to compute wave speed
Publicado em: 2010
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10. Effect of facial vertical pattern on mastication and its parameters / Influencia do padrão facial vertical sobre a mastigação e seus parametros
Craniofacial vertical morphology may influence the disposition of masticatory muscles, affecting some functions of stomatognathic system. Thus, the aims of this study were to evaluate, in subjects with different facial vertical pattern, the quality of mastication and the following masticatory parameters: occlusal contact area, muscles activities, muscle effo
Publicado em: 2010
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11. Utilização de imagens de alta resolução para gerenciamento de zonas de proteção de aeródromos
In recent years, large cities have experienced disordered growth, resulting in many problems of infrastructure that reached the airports neighborhoods, causing many obstacles that affect the safety of aircrafts, passengers and people living near the airports. An other result is the airport¿s restriction, in such a way to affect the socio-economic developmen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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12. Fabricação e caracterização de sensor de pixel ativo com tecnologia NMOS de porta metalica / Fabrication and characterization of active pixel sensors using metal gate NMOS technology
Active Pixel Sensors (APS) based on a simple nMOS technology with high aspect ratio may present good sensitivity to photodetection and offer a low cost option for image sensing circuits. This work presents the layout, fabrication and characterization of photodiodes, transistors and APSs built at the Center for Semiconductor Components (CCS). All the process
Publicado em: 2009