Volumetric Reconstruction
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Volumetric reconstruction and determination of minimum crosssectional area of the pharynx in patients with cleft lip and palate: comparison between two different softwares
Abstract Objective: The aim of this study was to assess the accuracy of volumetric reconstruction of the pharynx by comparing the volume and minimum crosssectional area (mCSA) determined with open-source applications (ITK-Snap, www.itksnap.org ; SlicerCMF) and commercial software (Dolphin3D, 11.8, Dolphin Imaging & Management Solutions, Chatsworth, CA, USA)
J. Appl. Oral Sci.. Publicado em: 04/10/2018
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2. Clear cell odontogenic carcinoma of the mandible: a treatment strategy
Abstract Clear cell odontogenic carcinoma (CCOC) is a rare odontogenic tumor of the jaws, histologically characterized by the presence of agglomerates of cells with eosinophilic cytoplasm. The patient, a 62-year-old Caucasian woman, presented an intraosseous lesion in the mandibular symphysis. A clinical examination revealed a discrete volumetric increase wi
J. Appl. Oral Sci.. Publicado em: 15/01/2018
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3. Volumetric T1 and T2 magnetic resonance brain toolkit for relaxometry mapping simulation
Abstract Introduction Relaxometry images are an important magnetic resonance imaging (MRI) technique in the clinical routine. Many diagnoses are based on the relaxometry maps to infer abnormal state in the tissue characteristic relaxation constant. In order to study the performance of these image processing approaches, a controlled simulated environment is
Res. Biomed. Eng.. Publicado em: 10/10/2016
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4. Comparison between 3D volumetric rendering and multiplanar slices on the reliability of linear measurements on CBCT images: an in vitro study
OBJECTIVE: The purpose of this study was to determine the accuracy and reliability of two methods of measurements of linear distances (multiplanar 2D and tridimensional reconstruction 3D) obtained from cone-beam computed tomography (CBCT) with different voxel sizes. MATERIAL AND METHODS: Ten dry human mandibles were scanned at voxel sizes of 0.2 and 0.4 mm.
J. Appl. Oral Sci.. Publicado em: 04/07/2014
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5. Structural alterations of foreskin caused by chronic smoking may explain high levels of urethral reconstruction failure using foreskin flaps
OBJECTIVES: The aim of the present study was to perform a stereological and biochemical analysis of the foreskin of smoker subjects. MATERIALS AND METHODS: Foreskin samples were obtained from 20 young adults (mean = 27.2 years old) submitted to circumcision. Of the patients analyzed, one group (n = 10) had previous history of chronic smoking (a half pack to
Int. braz j urol.. Publicado em: 2012-08
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6. Validity and reproducibility of cephalometric measurements obtained from 2D and 3D cone beam computed tomography images reconstructed / Validade e reprodutibilidade de medidas cefalométricas derivadas da reconstrução de imagens em 2D e 3D de tomografias computadorizadas de feixe cônico
The lateral cephalometric radiography is used as the standard and essential tool for assessing maxillofacial morphology. The main of this study was to test the validity and reproducibility of angular cephalometric measurements of images derived from 2D and 3D reconstruction of cone beam computed tomography, and compared them with measurements obtained in con
Publicado em: 2011
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7. Processing, radiometric correction, autofocus and polarimetric classification of circular SAR data.
The demand for high resolution SAR systems and also for imaging techniques to retrieve scene information on the third dimension have stimulated the development of new acquisition modes and processing approaches. This work studies one of the newest SAR acquisition modes being used, namely the Circular SAR, in which the platform follows a non-linear circular t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/10/2010
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8. Processing, radiometric correction, autofocus and polarimetric classification of circular SAR data.
The demand for high resolution SAR systems and also for imaging techniques to retrieve scene information on the third dimension have stimulated the development of new acquisition modes and processing approaches. This work studies one of the newest SAR acquisition modes being used, namely the Circular SAR, in which the platform follows a non-linear circular t
Publicado em: 2010
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9. Least squares and point-based surfaces: new perspectives and Applications / Minimos-quadrados e aproximação de superfície de pontos: novas perspectivas e aplicações
Surface reconstruction from unorganized points has been one of the most promising scientific research areas in Computer Graphics. In addition, it has been used successfully for the definition of fluid interface in numerical simulation of fluid flow. There are several reasons to that fact: for instance, considering Computer Graphics, we have the handling of o
Publicado em: 2008
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10. Análise de imagens tomográficas da Ciência do Solo em ambiente de realidade virtual
This work presents a Virtual Reality environment dedicated to the analysis of tomographic images of Soil Science. Its architecture uses models proceeding from a volumetric (3-D) reconstruction algorithm, summed with several graphics processes of manipulation and visualization, in a way to provide immersion and interaction of the user with the virtual scene.
Publicado em: 2008
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11. Alo-transplante parcial de bexiga em cães (Canis familiaris): avaliação clínica, histológica e imunoistoquímica
The hypothesis that the bladder partially allotransplantation in dogs, develop the structural and functional capacity of this organ was tested. Twenty healthy dogs (10 of male gender and 10 of female) were submitted to an experimental cystectomy, with a withdrawal between 70 and 80% of the organ and preservation of the vesical trigone. The fresh alotransplan
Publicado em: 2007
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12. RECONSTRUCTION OF SCENES FROM IMAGES BY COARSE-TO-FINE SPACE CARVING / RECONSTRUÇÃO DE CENAS A PARTIR DE IMAGENS ATRAVÉS DE ESCULTURA DO ESPAÇO POR REFINAMENTO ADAPTATIVO
The reconstruction of scenes from imagens has received special attention from researchers of the areas of computer vision, computer graphics and geometric modeling. As examples of application we can mention image-based scene reconstruction, modeling of complex as-built objects, construction of virtual environments and telepresence. Among the most successful
Publicado em: 2003