Encontrados 15 documentos, a visualizar página 1 de 2

Ordenado por Data

The influence of muscles activation on the dynamical behaviour of the tympano-o...

Fernanda Gentil; Marco Parente; Pedro Martins; Carolina Garbe; João Paço; A.J.M. Ferreira; João Manuel R. S. Tavares; Renato Natal Jorge

The human ear is a complex biomechanical system and is divided into three parts: outer, middle and inner ear. The middle ear is formed by ossicles (malleus, incus and stapes), ligaments, muscles and tendons, that transfer sound vibrations from the eardrum to the inner ear, linking with mastoid and Eustachian tube. In this work, a finite element modelling of the tympano-ossicular system of the middle ear was dev...



A level set based algorithm to reconstruct the urinary bladder from multiple views

Zhen Ma; Renato Natal Jorge; T. Mascarenhas; João Manuel R. S. Tavares

The urinary bladder can be visualized from different views by imaging facilities such as Computerized Tomography and Magnetic Resonance Imaging. Multi-view imaging can present more details of this pelvic organ and contribute to a more reliable reconstruction. Based on the information from multi-view planes, a level set based algorithm is proposed to reconstruct the 3D shape of the bladder using the cross-sectio...



Stapedotomy-hough technique to correct otosclerosis

Fernanda Gentil; Marco Parente; Pedro Martins; Carolina Garbe; Eurico Almeida; João Manuel R. S. Tavares; Renato Natal Jorge


A Comparison between Segmentation Algorithms for Urinary Bladder on T2-weighted...

Zhen Ma; Renato Natal Jorge; João Manuel R. S.Tavares

The urinary bladder on T2-weighted MR images has a high signal intensity appearance, which can be clearly identified from the neighboring structures. However, due to the complex imaging background, the appearance of the bladder is frequently influenced by noise and partial volume effect. Different algorithms have been proposed to segment the bladder. Nevertheless, these algorithms are at their beginning phases,...


Novel Approach to Segment the Inner and Outer Boundaries of the Bladder Wall in...

Zhen Ma; Renato Natal Jorge; T. Mascarenhas; João Manuel R. S. Tavares

Diagnosis of bladder-related conditions needs critical measurements which require the segmentation of the inner and outer boundaries of the bladder wall. In T2-weighted MR images, the low-signal-intensity bladder wall can be identified due to the large contrast with the high-signal-intensity urine and perivesical fat. In this paper, two deformable models are proposed to segment the bladder wall. Based on the im...


Segmentation of Organs and Structures in Female Pelvic Cavity

Zhen Ma; Renato Natal Jorge; João Manuel R. S. Tavares


A Review of Algorithms for Medical Image Segmentation and their Applications to...

Zhen Ma; João Manuel R. S.Tavares; Renato Natal Jorge; T. Mascarenhas

This paper aims to make a review on the current segmentation algorithms used for medical images. Algorithms are classified according to their principal methodologies, namely the ones based on thresholds, the ones based on clustering techniques and the ones based on deformable models. The last type is focused due to the intensive investigations on the deformable models that have been done in the last few decades...


Segmentation of Structures in 2D Medical Images

João Manuel R. S. Tavares; Renato Natal Jorge


15 Resultados

Texto Pesquisado

Refinar resultados

Autor











Data









Tipo de Documento



Recurso


Assunto













    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia