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Publications

Publications by João Barroso

2007

Motivation inherent in the adoption of technologies and information systems in major Portuguese companies

Authors
Varajao, JE; Ribeiro, AT; Figueiredo, NP; Barroso, JM;

Publication
CISCI 2007: 6TA CONFERENCIA IBEROAMERICANA EN SISTEMAS, CIBERNETICA E INFORMATICA, MEMORIAS, VOL I

Abstract

2009

Web platform architecture to support the Geographic Information System of the University of Tras-os-Montes and Alto Douro Campus

Authors
Almeida, J; Fernandes, H; Filipe, V; Barroso, J;

Publication
2009 INTERNATIONAL CONFERENCE ON NEW TRENDS IN INFORMATION AND SERVICE SCIENCE (NISS 2009), VOLS 1 AND 2

Abstract
The spread of the Internet throughout society has sparked a revolution in the way many areas of knowledge are promoted. Geographic Information Systems (GIS) are, potentially, such an area. By distributing geospatial information and ways to manipulate it across the Web, a universal broadcast service is achieved, allowing users to access data anywhere. Geographic Information (GI) is usually the realm of specialized companies, and the client's role is often limited to consuming such information. This project aims to conceive a prototype of an architecture that allows the visualization of the Geographic Information System of University of Tras-os-Montes and Alto Douro. This prototype will also be used to feed other systems, also being developed, like navigation systems based on GPS to help people with disabilities, namely, blind users.

2009

Intelligent management system of collection of used vegetable oil [Sistema inteligente de gestão de recolha de óleo vegetal usado]

Authors
Sousa, A; Faria, J; Barbosa, M; Filipe, V; Reis, A; Barroso, J;

Publication
Actas da 4a Conferencia Iberica de Sistemas e Tecnologias de Informacao, CISTI 2009

Abstract

2012

Blind navigation support system based on Microsoft Kinect

Authors
Filipe, V; Fernandes, F; Fernandes, H; Sousa, A; Paredes, H; Barroso, J;

Publication
PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON SOFTWARE DEVELOPMENT FOR ENHANCING ACCESSIBILITY AND FIGHTING INFO-EXCLUSION (DSAI 2012)

Abstract
This paper presents a system which extends the use of the traditional white cane by the blind for navigation purposes in indoor environments. Depth data of the scene in front of the user is acquired using the Microsoft Kinect sensor which is then mapped into a pattern representation. Using neural networks, the proposed system uses this information to extract relevant features from the scene, enabling the detection of possible obstacles along the way. The results show that the neural network is able to correctly classify the type of pattern presented as input.

2008

Automatic reading of attendance in the classroom: Integration with the information system for teaching support [Leitura automática de presenças em sala de aula: Integração com o sistema de informação de apoio ao ensino]

Authors
Barbosa, L; Filipe, V; Bulas Cruz, J; Barroso, J;

Publication
CISCI 2008 - Septima Conferencia Iberoamericana en Sistema, Cibernetica e Informatica 5to SIECI 2008, 3er Simposium Internacional en Comunicacion del Conocimiento y Conferencias, CCC 2008 - Memorias

Abstract

2010

Stereo vision in blind navigation assistance

Authors
Fernandes, H; Costa, P; Filipe, V; Hadjileontiadis, L; Barroso, J;

Publication
2010 World Automation Congress, WAC 2010

Abstract
Visual impairment and blindness caused by infectious diseases has been greatly reduced, but increasing numbers of people are at risk of age-related visual impairment. Visual information is the basis for most navigational tasks, so visually impaired individuals are at disadvantage because appropriate information about the surrounding environment is not available. With the recent advances in inclusive technology it is possible to extend the support given to people with visual impairment during their mobility. In this context we propose a system, named SmartVision, whose global objective is to give blind users the ability to move around in unfamiliar environments, whether indoor or outdoor, through a user friendly interface. This paper is focused mainly in the development of the computer vision module of the SmartVision system.

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