Encontrados 114 documentos, a visualizar página 1 de 12
Segmentação de Imagens de Ultra-sonografia Intracoronária
Jorge Patrão; Pedro Fernandes; Augusto SilvaThis paper presents two methods to perform an automatic identification of the three major structures of the coronary artery - lumen, internal and external laminae - in images obtained by intracoronary ultrasound: Region Growing and Active Contours or Snakes, with special relevance to the later. ; Neste artigo é abordada a segmentação de imagens obtidas por ult...
Reconstrução e Visualização 3D dos Hipocampos Cerebrais a partir de Imagens de ...
Luís Coelho; Paulo Dias; Augusto SilvaThe Visualization of medical images is fundamental for the identification of structures and organs of interest. The hippocampus is a cerebral structure with functional impact at the memory level. Magnetic Ressonance Imaging has been enabling several types of hippocampus visualizations This paper describes a simple visualization system, which was designed to view the 3D representation and morphology of...
Visualização dos ventrículos cerebrais a partir de Imagens de Ressonância Magné...
Inês Carbone; Paulo Dias; Augusto SilvaMagnetic Resonance is a technique that can be used for the acquisition of images of the brain. The acquisition of several images in different slices can lead to visualization in a three-dimensional space. This article describes an application developed in VTK for the visualization of cerebral images in three dimensions. It is focused on the visualization of the brain ventricles pre...
Integração da disciplina de Sistemas Digitais na plataforma PmatE
Sérgio Barbosa; Alexandre Moreira; Manuel Bernardo Cunha; Augusto SilvaThis article approaches the process of integration of a Digital Systems course in the Mathematical Education Project platform, developed to support computer aided education.The paper describes how the project appeared and its scope,identifies the needed requirements needed before actualcontent production, describes the intrinsic procedures of theorganization, development areas, used technologies and alsosome of...
Transmissão de imagens Médicas através de WebServices
Sérgio Lima; Natércia Sousa; Carlos Costa; Augusto Silva; Jacek KustraThis paper presents the advantages of using WebServices in medical images transmission, how it works, and the method used for the development of this work.It starts with an approach to the protocols used in this kind of services, and a brief explanation on the tools that where used, followed by the work method used during this project. ; O presente artigo apresenta as vantagens da utilização de W...
Ferramentas de suporte ao estudo da Disciplina de Sistemas Digitais: Mapas de K...
Sérgio Barbosa; Manuel Bernardo Cunha; Augusto SilvaThis article intends to reveal a tool for Boolean functions simplification, developed in the scope of the DigitalSystems program, part of the Mathematical EducationProject.The document begins by showing some work examples,describes the technology used in the project, it enunciates and describes (with examples) all the steps of the algorithm and finishes by illustrating graphically the results gathered inlaborat...
Ferramentas de suporte ao estudo da Disciplina de Sistemas Digitais: Carta de I...
Sérgio Barbosa; Manuel Bernardo Cunha; Augusto SilvaThe Implication Chart is an algorithm used to simplify Finite State Machines which is a lectured part of the Digital Systems course, under the Engineering Electronics, Telecommunication and Informatics Department responsibility.The result of all the work presented here is an efficient toolused at the project stage of sequential components and useful in the learning support.Developed for Microsoft platforms, it ...
A Vocal Tract Segmentation and Analysis over a European Portuguese MRI Database
Inês Carbone; Paula Martins; António Teixeira; Augusto SilvaKnowledge of the speech production mechanism is essential for the development of speech production models and theories. Magnetic Resonance Imaging delivers high quality imaging of soft tissue. To our knowledge, there are no complete systematic Magnetic Resonance Imaging studies ofEuropean Portuguese production. With this work, we intendto create a database of Magnetic Resonance Imaging imagesof European Portugu...
Medical Imaging Markup Environment
Pedro Lopes; Augusto SilvaA new world of digital diagnostic capabilities has been made possible with the recent advances in medical imaging technology. These advances promoted communication and cooperation between several distinct entities to create standards and models that can be used in the entire industry to improve the quality of the service offered to users. Despite the growing quality in digital images, they are not enough alone....
Anonymization of burned-in annotations in ultrasound imaging
Mário Antunes; Ricardo Machado; Augusto SilvaMost of the medical imaging modalities compliant with the Digital Imaging and Communication in Medicine (DICOM) standard are currently conveying patient information and other study related information as visual overlay objects on top of the proper imaging contents. Making these image data publicly available for teaching platforms, clinical trials or maintenance support requires some degree of anonymization. In ...
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