Encontrados 10 documentos, a visualizar página 1 de 1
Evaluation of distinct input methods of an intelligent wheelchair in simulated ...
Faria, Brígida Mónica; Vasconcelos, Sérgio; Reis, Luís Paulo; Lau, NunoThis paper focuses on evaluating the usability of an Intelligent Wheelchair (IW) in both real and simulated environments. The wheelchair is controlled at a high-level by a flexible multimodal interface, using voice commands, facial expressions, head movements and joystick as its main inputs. A Quasi-experimental design was applied including a deterministic sample with a questionnaire that enabled to apply the S...
A comparative study of different image features for hand gesture machine learning
Trigueiros, Paulo; Ribeiro, António Fernando; Reis, Luis PauloVision-based hand gesture interfaces require fast and extremely robust hand detection, and gesture recognition. Hand gesture recognition for human computer interaction is an area of active research in computer vision and machine learning. The primary goal of gesture recognition research is to create a system, which can identify specific human gestures and use them to convey information or for device control. In...
Vision-based gesture recognition system for human-computer interaction
Trigueiros, Paulo; Ribeiro, António Fernando; Reis, Luis PauloHand gesture recognition, being a natural way of human computer interaction, is an area of active research in computer vision and machine learning. This is an area with many different possible applications, giving users a simpler and more natural way to communicate with robots/systems interfaces, without the need for extra devices. So, the primary goal of gesture recognition research is to create systems, which...
Vision based referee sign language recognition system for the RoboCup MSL league
Trigueiros, Paulo; Ribeiro, António Fernando; Reis, Luis PauloIn RoboCup Middle Size league (MSL) the main referee uses assisting technology, controlled by a second referee, to support him, in particular for conveying referee decisions for robot players with the help of a wireless communication system. In this paper a vision-based system is introduced, able to interpret dynamic and static gestures of the referee, thus eliminating the need for a second one. The referee's g...
Sistema integrado de detecção e seguimento de contornos
Reis, Luís Paulo Gonçalves dosDissertação apresentada para obtenção do grau de Mestre em Engenharia Electrotécnica e de Computadores, na Faculdade de Engenharia da Universidade do Porto, sob a orientação dos Prof. Doutor Joaquim Pontes Marques de Sá e António Miguel Pontes Pimenta Monteiro
Extração de informação de texto formal para a modelação expedita de edifícios m...
Baptista, Ricardo; Reis, Luís Paulo; Magalhães, Luís; Rodrigues, Roberto; Coelho, António; Sousa, AugustoA extração de informação a partir de descrições textuais para a modelação procedimental de ambientes urbanos é apresentada com solução para os edifícios antigos. No entanto, este tipo de edifício carece de maior cuidado com os detalhes de alto nível. Este artigo descreve uma plataforma para a geração expedita de modelos 3D de edifícios monumentais, cuja arquitetura é modular. O primeiro módulo permite a extraçã...
A comparison of machine learning algorithms applied to hand gesture recognition
Trigueiros, Paulo; Ribeiro, António Fernando; Reis, Luis PauloHand gesture recognition for human computer interaction is an area of active research in computer vision and machine learning. The primary goal of gesture recognition research is to create a system, which can identify specific human gestures and use them to convey information or for device control. This paper presents a comparative study of four classification algorithms for static hand gesture classification u...
Coordenação em sistemas multi-Agente : Aplicações na gestão universitária e fut...
Reis, Luís Paulo Gonçalves dosTese de doutoramento. Engenharia Electrotécnica e de Computadores. Faculdade de Engenharia. Universidade do Porto. 2003
Prática de Ensino Supervisionada em Ensino do 1.º e do 2.º Ciclo do Ensino Básico
Reis, Luís Paulo Fernandes dosO presente Relatório Final foi elaborado como parte integrante da Unidade Curricular Prática de Ensino Supervisionada do Mestrado em Ensino do 1.º e 2.º Ciclo do Ensino Básico da Escola Superior de Educação de Bragança. Pretende reflectir o percurso formativo seguido pelo professor-estagiário, abordando os desafios, aprendizagens, experiências, dificuldades e êxitos ocorridos ao longo do quotidiano profissional...
IBT: A Real-Time Tempo And Beat Tracking System
Oliveira, João Lobato; Gouyon, Fabien; Martins, Luís Gustavo; Reis, Luís PauloThis paper describes a tempo induction and beat tracking system based on the efficient strategy (initially introduced in the BeatRoot system [Dixon S., “Automatic extraction of tempo and beat from expressive performances.” Journal of New Music Research, 30(1):39-58, 2001]) of competing agents processing musical input sequentially and considering parallel hypotheses regarding tempo and beats. In this paper, we p...
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