Analysis And Digital Image Processing
Mostrando 1-12 de 102 artigos, teses e dissertações.
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1. RAPID DETECTION OF VITAMIN C CONTENT IN FRUITS AND VEGETABLES USING A DIGITAL CAMERA AND COLOR REACTION
In this study, we propose a novel method to determine the vitamin C content in fruits and vegetables. The proposed method exploits the image and data processing abilities of computers by coupling a digital camera and a color reaction. An image acquisition device was developed to collect the image information of the solution to be measured after the color rea
Quím. Nova. Publicado em: 2020-12
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2. Analysis of cracks and coating in iron ore pellets by digital image processing
Abstract The pelletizing process agglomerates ore fines previously considered as tailings and makes its application possible in the form of pellets. During the process, the pellets are subjected to various compressive forces and temperature changes, which cause ruptures in their surface. These ruptures (cracks) impair the performance of the pellets in the re
REM, Int. Eng. J.. Publicado em: 2020-09
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3. Detection of foliar diseases using image processing techniques
ABSTRACT This paper presents the development of a methodology to detect the percentage of affected area of Phytophthora infestans disease in tomato plants, using digital image processing techniques to extract the regions of interest with color analysis, where the YIQ and TSL models for the detection of the disease. The method consists of solving one of the m
Rev. Ceres. Publicado em: 2020-04
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4. Methods for and pigments extration and determination of color in tomato for processing cultivars
Abstract The aim of this research was compare methods for pigments extraction and color determination in different tomato for processing cultivars, and choose the most promising materials for the industry. The tomatoes for processing studied were of the IT761, H9992, H9553, AP533, Advance, N901, BRSena, U2006, HY26, HY37 and HY68 cultivars. The extraction y
Food Sci. Technol. Publicado em: 2020-03
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5. 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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6. Methods for and pigments extration and determination of color in tomato for processing cultivars
Abstract The aim of this research was compare methods for pigments extraction and color determination in different tomato for processing cultivars, and choose the most promising materials for the industry. The tomatoes for processing studied were of the IT761, H9992, H9553, AP533, Advance, N901, BRSena, U2006, HY26, HY37 and HY68 cultivars. The extraction y
Food Sci. Technol. Publicado em: 20/12/2018
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7. Metodología ad hoc para la observación de superficies de desgaste y fractura
ABSTRACT In the present work, a methodology of microscopic analysis and measurement of wear surfaces is presented, based on images made using digital processing techniques such as stitching and stac-king. The images are obtained from an ad-hoc and low-cost microscopic observation system, consisting of sample positioning and focus-elevation modules with micro
Matéria (Rio J.). Publicado em: 19/07/2018
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8. Model-assisted phenotyping by digital images in papaya breeding program
ABSTRACT Manual phenotyping for papaya Carica papaya (L) breeding purposes limits the evaluation of a great number of plants and hampers selection of superior genotypes. This study aimed to validate two methodologies for the phenotyping of morpho-agronomic plant traits using image analysis and fruit traits through image processing. In plants of the ‘THB’
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-08
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9. Recuperação de vídeos comprimidos por conteúdo / Content-based retrieval of compressed videos
Recent advances in the technology have enabled the increase of the availability of video data, creating large digital video collections. This has spurred great interest in systems that are able to manage those data in a efficient way. Making efficient use of video information requires the development of powerful tools to extract high-level semantics from low
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/11/2011
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10. Análise morfológica de imagens e classificação de aberrações cromossômicass por meio de lógica fuzzy / Morphological images analysis and chromosomic aberrations classification based on Fuzzy Logic
Este trabalho desenvolve uma metodologia para a automação da análise morfológica de imagens de cromossomos humanos irradiados no reator nuclear IEA-R1 (localizado no Instituto de Pesquisas Energéticas e Nucleares, IPEN, em São Paulo, Brasil) e, portanto, sujeitos a aberrações morfológicas. Esta metodologia se propõe a auxiliar na identificação, c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/10/2011
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11. Extensiometria óptica por Moiré geométrico digital para anãlise de tensões no plano / Optical extensometry by digital geometric Moiré for in-plane stress analysis
The study of the behavior of building structures pass through the determination of the strain and stresses to evaluate the level of local and global security against the active actions. In the last years in Brazil, the extensometers have been commonly used to measure the strain at a specific single point. The optical extensometry presents itself as an altern
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/06/2011
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12. Caracterização metalúrgica de juntas de aço inoxidável superduplex soldadas por processo TIG autógeno / Characterization of metallurgical stell joints welded stainles superduplex autogenous TIG process
Os aços inoxidáveis do tipo duplex possuem grande importância na indústria, principalmente na do petróleo e gás natural, por apresentarem elevada resistência mecânica e excelente resistência à corrosão. Caracterizam-se por apresentar estrutura bifásica, constituída de proporções praticamente iguais de ferrita e austenita. O presente trabalho c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/03/2011