Color Segmentation
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. 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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2. 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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3. Mature pomegranate recognition methods in natural environments using machine vision
RESUMO: O uso de máquina para reconhecer romãs maduras em ambientes naturais é de grande importância para melhorar a aplicabilidade e a eficiência do trabalho de robôs de colheita. Ao analisar as características de cor das imagens coloridas de romãs maduras sob diferentes condições de iluminação, a viabilidade do modelo de cores YCbCr para o rec
Cienc. Rural. Publicado em: 02/09/2019
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4. Quantificação do colágeno dérmico equino por duas técnicas morfométricas: contagem de pontos e segmentação de cor
RESUMO Os colágenos tipos I e III apresentam diferentes tonalidades de birrefringência em cortes histológicos corados com Picrosirius red e analisados em microscópio sob luz polarizada. Com base nessa propriedade, os colágenos podem ser quantificados por histomorfometria. Entretanto, são muitas as variáveis que podem afetar a distribuição das cores
Arq. Bras. Med. Vet. Zootec.. Publicado em: 14/06/2019
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5. Automatic identification of tuberculosis mycobacterium
Introduction According to the Global TB control report of 2013, “Tuberculosis (TB) remains a major global health problem. In 2012, an estimated 8.6 million people developed TB and 1.3 million died from the disease. Two main sputum smear microscopy techniques are used for TB diagnosis: Fluorescence microscopy and conventional microscopy. Fluorescence micro
Res. Biomed. Eng.. Publicado em: 2015-03
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6. Segmentação de pessoas em imagens estáticas baseada em esqueleto
The segmentation of people (automatic or semi-automatic) in still images is a very challenging task, mainly due to several factors in the real world, such as those related to the lighting of the scene where the image was captured, shadows, image noise, occlusions, high similarity of the object of interest with the background of the scene and the lack of info
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
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7. Relações entre os desempenhos em nomeação rápida, consciência fonêmica, conhecimento de letras e leitura escrita em 1° e 2° ano do Ensino Fundamental / Relations between the performance in rapid naming, phonemic awareness and letter knowledge in 1st and 2nd fundamental scholar degree
The aim of this study was to describe and compare the performance of students from 1st and 2nd fundamental scholar degree in tasks of phonemic awareness, rapid naming, letter knowledge, reading and writing and to verify the association between the results from the tasks. Participated from the study 60 children aged from 5:9 to 7:5 years-old from municipal sc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2011
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8. Diagnóstico da sífilis auxiliado por computador: proposta de um método híbrido fuzzy neural para análise de imagem de fluorescência. / Diagnosis of syphilis computer aided: proposal of a fuzzy neural hybrid method for image analysis of fluorescence.
In this work we have developed a prototype to analyze fluorescence microscopy images obtained from the FTA-ABS. This test is used as confirmation of the diagnosis of syphilis by identifying the bacteria causing the disease. A considerable problem in the analysis of such images is the subjectivity in the interpretation of fluorescence intensity shown, because
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/08/2011
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9. Detecção de faces humanas em imagens coloridas utilizando redes neurais artificiais / Detection of human faces in color images using artificial neural networks
The task of finding faces in images is extremely complex, as there is variation in brightness, backgrounds and highly complex objects that may overlap partially in the face to be found, among other problems. With the advancement in the field of computer vision techniques latest image processing and artificial intelligence have been combined to develop more e
Publicado em: 2010
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10. Mistura de cores: uma nova abordagem para processamento de cores e sua aplicação na segmentação de imagens / Colors mixture: a new approach for color processing and its application in image segmentation
Inspired on the techniques used by painters to overlap layers of various hues of paint to create oil paintings, and also on observations of the distribution of cones in human retina for the interpretation of these colors, this thesis proposes an image processing technique based on color mixing. This is a static color quantization method that expresses the mi
Publicado em: 2009
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11. Sistema visual de segmentação de objetos robusto à iluminação para monitoramento automático de tráfego de veículos terrestres
This study presents a proposal for a moving object segmentation system that is resistant to changes in lighting conditions and can detect and suppress moving shadows. The technique of background subtraction using mixtures of gaussians provided a basis for this study. To better deal with illumination changes, that technique was adapted to use the HSV color sp
Publicado em: 2009
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12. Segmentation-free template matching in digital images invariant to similarity transformations. / Casamento de padrões em imagens digitais livre de segmentação e invariante sob transformações de similaridade.
Reconhecimento de padrões em imagens é um problema clássico da área de visão computacional e consiste em detectar um padrão ou objeto de referência (template) em uma imagem digital. A maioria dos métodos para esta finalidade propostos na literatura simplifica as imagens por meio de operações como binarização, segmentação e detecção de bordas
Publicado em: 2009