Autor(es):
Ferreira, Ana ; Gentil, Fernanda ; Tavares, João Manuel R. S.
Data: 2014
Identificador Persistente: http://hdl.handle.net/10400.22/13969
Origem: Repositório Científico do Instituto Politécnico do Porto
Projeto/bolsa:
info:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FEEA-CRO%2F103320%2F2008/PT;
info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FSAU-BEB%2F104992%2F2008/PT;
Assunto(s): Biomechanical Phenomena; Ear; Finite Element Analysis; Humans; Magnetic Resonance Imaging; Tomography, X-Ray Computed; Algorithms; Models, Anatomic
Descrição
In recent years, the segmentation, i.e. the identification, of ear structures in video-otoscopy, computerised tomography (CT) and magnetic resonance (MR) image data, has gained significant importance in the medical imaging area, particularly those in CT and MR imaging. Segmentation is the fundamental step of any automated technique for supporting the medical diagnosis and, in particular, in biomechanics studies, for building realistic geometric models of ear structures. In this paper, a review of the algorithms used in ear segmentation is presented. The review includes an introduction to the usually biomechanical modelling approaches and also to the common imaging modalities. Afterwards, several segmentation algorithms for ear image data are described, and their specificities and difficulties as well as their advantages and disadvantages are identified and analysed using experimental examples. Finally, the conclusions are presented as well as a discussion about possible trends for future research concerning the ear segmentation.
