Teresa C. S. Azevedo

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Three-dimensional (3D) objects reconstruction using just bi-dimensional (2D) images has been a major research topic in Computer Vision. However, it is still a hard problem to address, when automation, speed and precision are required and/or the objects have complex shapes or image properties. In this paper, we compare two Active Computer Vision methods(More)
Several experimental brain oedema models are currently available, but most of them are very different from what happens in clinical practice. As it is simple and seems to replicate the range of injuries seen in man we decided to evaluate Marmarou's model of head injury in order to test physiopathogenic and therapeutic hypotheses. Three groups of Wistar rats(More)
Three-dimensional (3D) human body reconstruction and modeling from multiple two-dimensional (2D) images is a topic of great interest and research but still remains a difficult problem. Volu-metric based methods are commonly used to solve this type of problem. With those methods, from a turntable image sequence of an object, a 3D model can be built. The(More)
Three-dimensional (3D) object reconstruction using only bi-dimensional (2D) images has been a major research topic in Computer Vision. However, it is still a complex problem to solve, when automation, speed and precision are required. In the work presented in this paper, we developed a computational platform with the main purpose of building 3D geometric(More)
In this paper we describe the development of a Computer Platform, whose goal is to recover the three-dimensional (3D) structure of a scene or the shape of an object, using Structure From Motion (SFM) techniques. SFM is an Active Computer Vision technique, which doesn't need contact or energy projection. The main objective of this project is to recover the(More)
Three-dimensional (3D) reconstruction of objects from 2D images has been a major research topic in Computer Vision in the last decades. However, it is still a complex problem to solve, when automation, speed and precision are required or when the objects involved present complex topologies or severe photo characteristics. Methods for 3D reconstruction of(More)
This paper presents a volumetric approach for three-dimensional (3D) object reconstruction. Building 3D models of objects from 2D images is still a very difficult task. However, the built 3D models can have different applications in many areas, such as in industrial inspection, virtual reality, and medicine, among others. In our work, an uncalibrated(More)
RESUMO Neste artigo pretende-se descrever uma plataforma computacional, que se encontra em fase de desenvolvimento, para reconstruir e caracterizar a forma 3D de objectos usando técnicas de Visão Activa. INTRODUÇÃO Visão Computacional é a área da ciência que se dedica a desenvolver teorias e métodos de extracção automática de informações úteis a partir de(More)