Fuzzy Segmentation
Mostrando 13-22 de 22 artigos, teses e dissertações.
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13. Análise orientada a objeto aplicada ao mapeamento de unidades geomorfológicas a partir de dados ASTER/TERRA / Object-Oriented Analysis Applied to the mapping of geomorphological units based on ASTER/TERRA data
O objetivo desta pesquisa foi desenvolver uma metodologia semi-automatizada de mapeamento geomorfológico, utilizando análise orientada a objeto (AOO). A área de estudo foi o município de São José dos Campos (SP). Com esse intuito, utilizaram-se redes semânticas hierárquicas (formalismo oriundo da AOO) para armazenamento e replicação do conhecimento
Publicado em: 2008
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14. Segmentação fuzzy de imagens e vídeos
Image segmentation is the process of subdiving an image into constituent regions or objects that have similar features. In video segmentation, more than subdividing the frames in object that have similar features, there is a consistency requirement among segmentations of successive frames of the video. Fuzzy segmentation is a region growing technique that as
Publicado em: 2007
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15. Zona de empate : o elo entre transformadas de watershed e conexidade nebulosa / Tie-zone : the bridge between watershed transforms and fuzzy connectedness
This thesis introduces the new concept of tie-zone transform that unifies the multiple solutions of a watershed transform, by conserving only the common parts among them such that the differing parts constitute the tie zone. The tie zone applied to the watershed via image-foresting transform (TZ-IFTWT) proves to be a link between watershed transforms based o
Publicado em: 2007
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16. SiMCaPe - Sistema para a montagem de cariótipo de peixe baseado em conjuntos difusos
The karyotype study of several organisms has a its objective to observe numerical variations, for detecting specific characteristics and to study the evolution of the species. Manual assembling of karyotype is a repetitive, subjective and time consuming task. This project describes the SiMCaPe, an interactive system for assisting the assembling of fish karyo
Publicado em: 2006
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17. Hybrid and incremental fuzzy learning to classify pixels by colors. / Aprendizado nebuloso híbrido e incremental para classificar pixels por cores.
Image segmentation is a very important process, which aims at subdividing an image in parts that correspond to objects of interest in the application domain. Objects may depict few colors that are represented in an image by a set of pixels presenting a very large range of chromatic values. A relatively small number of human-defined linguistic labels can be a
Publicado em: 2005
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18. Zoneamento geoambiental com auxílio de lógica fuzzy e proposta de um geoindicador para caracterização do meio físico da Bacia do Rio do Peixe / Geoenvironmental zoning using fuzzy logic and proposal of a geoindicador to characterize Rio do Peixe basin environment
This study presents a methodological technique to characterize environmental restrictions and aptitudes considering continuous variation in the attributes and gradation in contato between units. Fuzzy logic procedures were used to generate representation of contact gradation for rocky substratum and unconsolidated materials maps. Continuous attribute variati
Publicado em: 2005
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19. PATTERN RECOGNITION APPLIED IN FINE ART AUTHENTICATION / RECONHECIMENTO DE PADRÕES APLICADO NA AUTENTICAÇÃO DE QUADROS DE ARTE
Signatures and hand writings were used during decades as a unique characteristic to recognize an individual. Methods to recognize these characteristics were base don the fact that each individual has an unique way to move his hand while writing. Taking that into account, it is reasonable to think that each painter has an unique way to strike the painting boa
Publicado em: 2002
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20. Projeto de operadores de processamento e analise de imagens baseados na transformada imagem-floresta
t: In image processing and analysis, many problems can be thought of as an optimal image partition problem based on seed pixels, where each seed defines an influence zone composed by its "closest" pixels. The image foresting transform (1FT) is a unified and efficient approach to solve these problems, by reducing them into a shortest-path forest problem in
Publicado em: 2001
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21. MINERAÇÃO DE DADOS APLICADA NA SOLUÇÃO DE PROBLEMAS DE MARKETING DIRETO E SEGMENTAÇÃO DE MERCADO / MINERACIÓN DE DATOS PARA LA SOLUCIÓN DE PROBLEMAS DE MARKETING DIRECTO Y SEGMENTACIÓN DE MERCADO / DATA MINING APPLIED TO DIRECT MARKETING AND MARKET SEGMENTATION
Devido à quantidade cada vez maior de dados armazenada pelas instituições, a área de mineração de dados tem se tornado cada vez mais relevante e vários métodos e métodos têm sido propostos de maneira a aumentar sua aplicabilidade e desempenho. Esta dissertação investiga o uso de diversos métodos e técnicas de mineração de dados na modelagem e
Publicado em: 2001
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22. Treatment response assessment of breast masses on dynamic contrast-enhanced magnetic resonance scans using fuzzy c-means clustering and level set segmentation
The goal of this study was to develop an automated method to segment breast masses on dynamic contrast-enhanced (DCE) magnetic resonance (MR) scans and to evaluate its potential for estimating tumor volume on pre- and postchemotherapy images and tumor change in response to treatment. A radiologist experienced in interpreting breast MR scans defined a cuboid
American Association of Physicists in Medicine.