Segmentation By Region
Mostrando 13-24 de 70 artigos, teses e dissertações.
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13. Cobertura vegetal do Parque Estadual Pantanal do Rio Negro (PEPRN) - MS.
Este trabalho tem por objetivo a elaboração do mapa da cobertura vegetal na escala de 1:50.000 do Parque Estadual Pantanal do Rio Negro, MS, para fins de plano de manejo. A legenda do mapeamento da cobertura vegetal foi baseada no sistema fisionômico-ecológico do IBGE, seguida das denominações regionais. A seguinte seqüência metodológica foi seguida
SIMPÓSIO DE GEOTECNOLOGIAS NO PANTANAL. Publicado em: 2011
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14. Memória social e ecologia histórica: a agricultura de coivara das populações quilombolas do vale do Ribeira e sua relação com a formação da mata atlântica local / Social memory and historical ecology:slash and burn agriculture in the formation of an Atlantic rainforest area inhabited by quilombola communities, Ribeira Valley, Brazil
The Atlantic Rainforest is one of the worlds most diverse and threatened biomes. The majority of its remnants are located at the Ribeira Valley (SP) where several of the States quilombola populations remain. The Valleys quilombos originated from a population of freed, abandoned or refugee slaves brought to the region in the beginning of the European coloniza
Publicado em: 2010
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15. SEGMENTAÇÃO MULTICRITÉRIO PARA DETECÇÃO DE NÓDULOS PULMONARES EM IMAGENS DE TOMOGRAFIA COMPUTADORIZADA / MULTICRITERION SEGMENTATION FOR LUNG NODULE DETECTION IN COMPUTED TOMOGRAPHY
This study proposes a novel segmentation algorithm for lung nodules detection in thorax computed tomography (CT). In order to decide, at each iteration, whether two adjacent objects should be merged or not, a region growing procedure calculates a heterogeneity growth based on multiple criteria. However, segmentation algorithm depends on some parameters which
Publicado em: 2009
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16. Análise de imagens do satélite ALOS PALSAR (Banda L, modo polarimétrico) para discriminação de coberturas de terras no Distrito Federal
Land cover maps are important source of data for environmental monitoring, biodiversity conservation, social, economic and environmental zonning, and local and global climatic changes, among other activities. In the Federal District of Brazil (FD), land cover mappings have been obtained from optical images. However, radar data are valuable alternative for th
Publicado em: 2009
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17. Análise dos dados ALOS/PALSAR (modo de imageamento FBD) para identificação dos tipos de cobertura da terra na região norte do estado do Mato Grosso / Analysis of ALOS/PALSAR data (FDB mode) to identification land cover types in north region of Mato Grosso State
The Amazon forest is the largest rainforest of the planet and concentrates great biodiversity and natural resources. The continuous human impacts are occurring due to the occupation and exploitation of the region, then becoming essential to understand and to monitor the land cover changes. The intense cloud coverage in this region makes the use of optical im
Publicado em: 2009
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18. Digital video transmission rates reduction by object segmentation applied to bees study. / Redução da taxa de transmissão de vídeo digital por meio da aplicação de segmentação de objetos aplicado ao estudo de abelhas.
The use of videos in web based laboratories over computer networks, known as weblabs, is being conducted for bee research as part of the ViNCES (Virtual Network Center of Ecosystem Services) project, a research consortium composed by: LAA (Laboratório de Automação Agrícola da Escola Politécnica) and the Laboratório de Abelhas of the Ecology Department
Publicado em: 2008
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19. Utilização de imagens Landsat - 5 / TM e SRTM para reconhecimento e análise das mudanças na paisagem da Serra de Pacaraima, Roraima, Brasil
This work aimed at to recognize and to analyze the changes in the landscape of the Pacaraima Mountain that is located in the extreme north of the Roraima State, Brazil. For that, four images of the satellite LANDSAT-5/TM were used referring the dates of covering 17/02/1990, 04/04/1995, 17/05/1999 and 06/05/2004, on which was determined a study area, and one
Publicado em: 2008
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20. Métodos para aproximação poligonal e o desenvolvimento de extratores de características de forma a partir da função tangencial
Whereas manually drawn contours could contain artifacts related to hand tremor, automatically detected contours could contain noise and inaccuracies due to limitations or errors in the procedures for the detection and segmentation of the related regions. To improve the further step of description, modeling procedures are desired to eliminate the artifacts in
Publicado em: 2008
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21. 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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22. "Tectônica rúptil mesozóico-cenozóica na região da Serra dos Órgãos, RJ" / "Mesozoic-Cenozoic brittle tectonics of the Serra dos Órgãos range, RJ"
Mezosoic-Cenozoic brittle tectonics of the Serra dos Órgãos range in the Rio de Janeiro State, southeastern Brazil, was investigated using morphostructural analysis and field surveys. The study area is a sector of the Serra do Mar coastal range, with summits over 2.200 m a.s.l., and is included in the central segment of the Neoproterozoic-Cambrian Ribeira
Publicado em: 2006
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23. SegmentaÃÃo de imagens de radar de abertura sintÃtica por crescimento e fusÃo estatÃstica de regiÃes / Segmentation of synthetic aperture radar images by growth and statistical fusion of the regions
A cobertura regular de quase todo o planeta por sistemas de radar de abertura sintÃtica (synthetic aperture radar - SAR) orbitais e o uso de sistemas aerotransportados tÃm propiciado novos meios para obter informaÃÃes atravÃs do sensoriamento remoto de vÃrias regiÃes de nosso planeta, muitas delas inacessÃveis. Este trabalho trata do processamento de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/05/2005
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24. SEISMIC PATTERN RECOGNITION USING TIME-FREQUENCY ANALYSES / RECONHECIMENTO DE PADRÕES SÍSMICOS UTILIZANDO ANÁLISES TEMPO-FREQÜÊNCIA
Independent of the adopted methodology to perform the seismic facies analysis, the geological oriented spatial and temporal segmentation of the reservoir region should be carefully done. Depending on the complexity of the reservoir system, seismic data quality, and the experience of the interpreter, the level of confidence in an interpretation can vary from
Publicado em: 2004