Digital Image
Mostrando 13-24 de 811 artigos, teses e dissertações.
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13. 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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14. Wide area digital dermoscopy applied to basal cell carcinoma,
Abstract In situations in when a dermoscopic record of a large lesion is desirable, the resulting images are usually restricted to a small field of view due to the limited diameter of dermatoscope lenses. This limitation often produces several photographs separately, thus losing the possibility of a single-image global evaluation. In these case reports, we s
An. Bras. Dermatol.. Publicado em: 2020-06
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15. Avaliação do ângulo de Southwick em duzentos quadris de crianças e adolescentes assintomáticos
Resumo Objetivos Medir o valor médio do ângulo de Southwick utilizando dois métodos diferentes, manual (1) e digital (2), e estabelecer um valor de normalidade. Métodos Estudo primariamente descritivo, realizado com 100 crianças e adolescentes. Foram excluídos indivíduos que apresentavam queixa ortopédica nos quadris e/ou joelhos, ou alterações d
Rev. bras. ortop.. Publicado em: 2020-06
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16. MULTIVARIATE ANALYSIS OF DIGITAL IMAGES AS AN ALTERNATIVE TO MONITOR DYE DEGRADATION BY THE FENTON PROCESS
The present work proposed the application of a multivariate regression model based on image data to monitor the decolorization process. Thus, a PLS regression based on the color histogram was applied to monitor the methylene blue degradation by the Fenton reaction. The results obtained by the digital imaging and UV-Vis methods were compared and the initial (
Quím. Nova. Publicado em: 2020-05
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17. 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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18. Classificando cédulas brasileiras (R$) usando análise de imagem por smartphone
A new method to identify the authenticity of Brazilian banknotes (R$) is proposed using digital image analysis by a smartphone application, Photometrix®, associated with chemometric tools. Authentic banknotes (n = 4) obtained in local bank and falsified (n = 12) by the author himself by means of three printers (laser-Deskjet®, wax-Color Qube® and inkjet-D
Quím. Nova. Publicado em: 2020-04
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19. Confiabilidade intra e interobservador do teste de tração modificado para avaliar a tensão da pálpebra inferior baseado em imagens digitais
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: 2020-04
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20. 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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21. Standardization of organoid culture for evaluation of melanogenesis induced by UVB, UVA and visible light,
Abstract Background: Organoid cultures are primary cultures that maintain architectural characteristics and the relationships between cells, as well as the extracellular matrix. They are alternatives for pathophysiological or therapeutic investigation rather than animal and in vitro tests. Objective: Development of a cutaneous organoid culture model, aimin
An. Bras. Dermatol.. Publicado em: 2020-02
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22. ESTIMATION OF MAIZE BIOMASS USING UNMANNED AERIAL VEHICLES
ABSTRACT Unmanned aerial vehicles (UAVs) are a promising tool for technology development and transfer and for the economic success of the agricultural sector. The objective of this study is to assess the validity of biomass estimation in a commercial maize plantation using aerial images obtained by a UAV. The proposed methodology involved analyzing images ac
Eng. Agríc.. Publicado em: 09/12/2019
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23. Glyphosate as Growth Regulator for Bahiagrass and Broadleaf Carpetgrass
RESUMO: Objetivou-se neste trabalho avaliar o efeito do uso do herbicida glyphosate como regulador de crescimento em grama Batatais e São Carlos. Os experimentos foram conduzidos em casa de vegetação no delineamento inteiramente casualizado com dez doses de glyphosate: 0; 5,625; 11,25; 22,5; 45; 90; 180; 360; 720; e 1.440 g a.e. ha-1 e quatro repetições
Planta daninha. Publicado em: 02/12/2019
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24. 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