Thierry Pinheiro Moreira

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In today's world, WWW as a platform to deliver instruction enables e-learning systems to manage a large quantity of different digital content. Teachers contribute their expert knowledge and students contribute their investigation works, tasks, etc. As a consequence of this, the content repository grows with a lot of information. Then, an urgent need exists(More)
Although several methods for action recognition have been proposed in the literature, many of them have limitations in terms of applicability in real-life situations. Despite satisfactory accuracy rates achieved by a number of methods, an effective action recognition system requires workability in real time. However, this feature usually comes along with(More)
Video analysis technology has become less expensive and more powerful in terms of storage resources and resolution capacity, promoting progress in a wide range of applications. Video-based human action detection has been used for several tasks in surveillance environments, such as forensic investigation, patient monitoring, medical training, accident(More)
This paper presents a new proposal to provide electronic health care for riverine communities through Vehicular Ad Hoc Networks (VANETs), using boats as data mules. The focus of this project is based in specific scenarios without telecommunications infrastructure, like Marajó Archipelago, located in north of Brazil, at Amazon Forest.
First-person action recognition is a recent problem in computer vision, where an observer wears body cameras to understand and recognize actions from the captured video sequences. Technological advances have made it possible to offer small wearable cameras that can be attached onto bike helmets, belts, animal halters, among other accessories. Examples of(More)
Cerebral angiography is nowadays a standard test in neurosurgical treatment. The coupling between such a diagnostic technique and neurosurgical practices is the outcome of a complex story. This paper explores that complexity. It does so by exploring the continuities and discontinuities between the multiple definitions and uses of angiography in the first 20(More)