Digital Image Correlation
Mostrando 1-12 de 51 artigos, teses e dissertações.
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1. Strain analysis in diametral compression test through digital image correlation
Abstract In the search for alternatives to obtain more information from rock tests and to make them more accessible, this study applies the Digital Image Correlation technique (DIC 2D) in a diametral compression test called Brazilian Test, comparing the result measured by an extensometer with the result obtained by DIC. Rock tests provide information about r
REM - International Engineering Journal. Publicado em: 2022
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2. 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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3. Intra- and interobserver reliability of a modified distraction test based on digital images to assess lower eyelid horizontal tension
RESUMO Objetivo: A frouxidão palpebral inferior é avaliada classicamente por meio de testes de “snap-back” e “distraction test”. O objetivo deste estudo foi avaliar a reprodutibilidade da técnica utilizada para quantificar indiretamente a tensão horizontal nas pálpebras inferiores através do processamento digital de imagens. Métodos: Este es
Arq. Bras. Oftalmol.. Publicado em: 25/11/2019
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4. Vigor of maize seeds determined by a free image analysis system
RESUMO Novas e refinadas tecnologias, baseadas em procedimentos computadorizados, criam potencial para automatização de avaliações laboratoriais, alternativa para a redução de custos e aumento da capacidade de tomada de decisão quanto ao destino de lotes de sementes. O presente trabalho teve como objetivo avaliar a eficiência do software de processam
Rev. Ciênc. Agron.. Publicado em: 04/11/2019
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5. Influence of coupling agents on the adhesion force of dissimilar overmolded polymers: a digital image correlation analysis
ABSTRACT The increase in the technical and functional requirements of plastic items has led the development of multimaterials. To achieve a good performance in the adhesion of dissimilar materials, in this case, polypropylene and coconut fiber composites, it is fundamental to understand the phenomena related to the specific interface. This work aims to evalu
Matéria (Rio J.). Publicado em: 16/09/2019
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6. Energy absorption of aluminum panels subjected to gelatin projectile impact
Abstract Digital image correlation (DIC) method has been widely used on dynamical experiments. This full-field and real-time method can fill in the gap of traditional point-based measurements of typical structures subjected to soft body impact such as bird strike. In order to get further understandings of soft body impact process, the present study analyzed
Lat. Am. j. solids struct.. Publicado em: 29/07/2019
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7. Severidade da disfunção temporomandibular e sua relação com a postura corporal
RESUMO O objetivo deste estudo foi identificar se existe correlação entre a severidade da disfunção temporomandibular (DTM) e postura corporal, bem como evidenciar as diferenças existentes na postura corporal nos diferentes graus de severidade. Foram avaliadas 71 mulheres de 18 a 35 anos quanto à severidade da DTM e à postura corporal, sendo divididas
Fisioter. Pesqui.. Publicado em: 18/07/2019
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8. Reading of the Mitsuda test: comparison between diameter and total area by means of a computerized method
ABSTRACT The Mitsuda test is a skin test based on the individual’s immune response through late and highly specific hypersensitivity reaction to the Mycobacterium leprae bacillus. A negative reaction identifies individuals who present a higher risk of becoming ill if exposed to M. leprae and, if they become ill, to develop the virchowian form of disease. T
Rev. Inst. Med. trop. S. Paulo. Publicado em: 14/02/2019
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9. Métodos temporales para determinar deformaciones límite en chapas metálicas
ABSTRACT The forming limit diagram (FLD) –broadly used to characterize sheet-metal formability– is made by means of strain measurement over the surface of stretched samples and the subsequent determination of limit-strain values associated with the onset of necking. Currently, researchers can make strain measurements with digital image-correlation analys
Matéria (Rio J.). Publicado em: 19/07/2018
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10. Accuracy of visual and image-based ICDAS criteria compared with a micro-CT gold standard for caries detection on occlusal surfaces
Abstract The aim of this study was to check the in vitro accuracy of ICDAS criteria on digital images compared to visual examination for the diagnosis of occlusal caries against a micro-CT gold standard. ICDAS was scored in 40 extracted permanent molars by means of visual inspection and stereomicroscopic images. Visual examinations were performed in duplicat
Braz. oral res.. Publicado em: 10/07/2018
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11. Experimental and Numerical Investigation of the Dynamic Behavior of Clamped Thin Panel Subjected to Underwater Impulsive Loading
Abstract The dynamic response and failure mechanism of clamped thin aluminum alloy plates subjected to underwater impulsive loading are investigated by laboratory experiments and finite element (FE) simulations. The effects of plate thickness, impulsive loading and fluid-structure interaction on failure modes in clamped thin aluminum plates are comprehensive
Lat. Am. j. solids struct.. Publicado em: 2017-06
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12. Dermal type I collagen assessment by digital image analysis
AbstractType I collagen is the main dermal component, and its evaluation is relevant to quantitative studies in dermatopathology. However, visual gradation (0 to 4+) has low precision and high subjectivity levels. This study aimed to develop and validate a digital morphometric analysis technique to estimate type I collagen levels in the papillary dermis. Fou
An. Bras. Dermatol.. Publicado em: 2015-10