Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/86483
Type: Artigo
Title: Detection of tooth fractures in CBCT images using attention index estimation
Title Alternative: 
Author: Souza, Andre
Falcão, Alexandre
Ray, Lawrence
Abstract: The attention index (φ) is a number from zero to one that indicates a possible fracture is detected inside a selected tooth. The higher the φ number, the greater the likelihood for needed attention in the visual examination. The method developed for the φ estimation extracts a connected component with image properties that are similar to those of a typical tooth fracture. That is, in cone-beam computed tomography (CBCT) images, a fracture appears as a dark canyon inside the tooth. In order to start the visual examination process, the method provides a plane across the geometric center of the suspicious fracture component, which maximizes the number of pixels from that component inside the plane. During visual examination, the user (doctor) can change plane orientations and locations, by manipulating the mouse toward different graphical elements that represent the plane on a 3-D rendition of the tooth, while the corresponding image of the plane is shown at its side. The visual examination aims at confirming or disproving the fracture-detection event. We have designed and implemented these algorithms using the image-foresting transform methodology. © 2014 SPIE.
The attention index (φ) is a number from zero to one that indicates a possible fracture is detected inside a selected tooth. The higher the φ number, the greater the likelihood for needed attention in the visual examination. The method developed for the
Subject: Aprendizado de máquina
Reconhecimento de padrões
Processamento de imagens
Inteligência artificial
Segmentação de imagens
Country: Estados Unidos
Editor: International Society for Optical Engineering
Citation: Progress In Biomedical Optics And Imaging - Proceedings Of Spie. Spie, v. 9036, n. , p. - , 2014.
Rights: fechado
Fechado
Identifier DOI: 10.1117/12.2041708
Address: https://spie.org/Publications/Proceedings/Paper/10.1117/12.2041708
Date Issue: 2014
Appears in Collections:IC - Artigos e Outros Documentos

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