Encontrados 17 documentos, a visualizar página 1 de 2
Assessing the Quality of Visualizations Produced Using Volume Rendering: Experi...
Beatriz Sousa Santos; José Nunes; Carlos Coimbra; Carlos Ferreira; Ana Maria Tomé; Nuno LauA set of parameters to assess the objective quality of visualizations of a voxel based data set, produced using a ray caster, is proposed as a first step toward the evaluation of the overall quality of these visualizations.Results obtained using synthetic data and a simple implementation of a ray caster are presented. The final goal of this evaluation will be the computation of “c...
Circuitos Virtuais Baseados em Reprogramação e Reconfiguração Dinâmica
Valery Sklyarov; Andreia Melo; Arnaldo Oliveira; Nuno Lau; Ricardo Sal MonteiroThis paper discusses dynamically reconfigurable field programmable gate arrays (FPGA) and their use for different practical applications. The technique considered presents different ways that might be used in order to design virtual logic schemes, which have acquired such properties as flexibility, extensibility and reusability. Since objectorientedtechnology allows to design software s...
D. Dinis: um Robô com Sentido de Orientação
Luís Seabra Lopes; José Nuno Lau; Luís Paulo Reis; Neste artigo descreve-se o D. Dinis, o robô que, além deter ficado classificado em 2º lugar, ganhou o PrémioInovação no Micro-Rato’99. A principal inovação desterobô é a utilização de uma bússola digital para orientaçãoe cálculo da posição. O artigo descreve resumidamente ohardware...
The Base Station Application of the CAMBADA Robotic Soccer Team
Nuno Figueiredo; António Neves; Nuno Lau; José Azevedo; Artur Pereira; Gustavo CorrenteThe base station is the software application responsible to provide automatic processing of soccer game refereeing events and to allow high level monitoring and control of the robots internal states. This paper presents the base station developed for CAMBADA, the robotic soccer team of the University of Aveiro. It describes the main requirements and specifications of the base station and presents the architectu...
FC Portugal Rescue: High Level Coordination in the RoboCup Rescue Simulation
Nuno Lau; Luis Paulo Reis; João CertoThis paper presents an overview of the RoboCup Rescue Simulation League and the rescue team FC Portugal.RoboCup Rescue Simulation is an international joint projectthat promotes research on distributed artificial intelligenceand intelligent robotics. It offers a comprehensive urbandisaster simulator, forums for technical discussions andcompetitive evaluation for researchers and practitioners. Thispaper explains ...
Localization techniques for autonomous mobile robots
João Silva; Nuno Lau; António J. R. NevesMobile autonomous robotics is nowadays an area of study much addressed by research teams worldwide. One of the main challenges to create robots that can be really autonomous is the self-localization problem. For a robot to be able to plan a motion and move in a useful way, it should know where it is in the environment. Otherwise, it would just move randomly, probably not being useful at all. Then, there is also...
Simulator of a Flow Cytometer: A Prototype
Luis Silva; Rui Alves; Beatriz Sousa Santos; Nuno Lau; Joaquim Sousa Pinto; Filipe SansonettyThe difficulty in learning how to use flow cytometry, the high costs of flow cytometers and the geographical dispersion of users and training centres, make training in this area very expensive. Thus, a simulator for training in flow cytometry would be very interesting. In this paper we present a prototype of such a tool, which is under development for Windows platforms and it is me...
Uma Introdução aos Processadores de Arquitectura Configurável
Orlando Moreira; Nuno Lau; António FerrariConfigurable Architecture Processors are computational systems where programmable logic is inserted within the architecture of a traditional microprocessor core in order to combine the versatility of software and the high performance of hardware. This paper gives an overview of this kind of systems, discussing implementation factors and showing examples of proposed architectures. ;...
Um Simulador para o Processador de Arquitectura Configurável ConCISe
Orlando Moreira; Bernardo Kastrup; Nuno Lau; António FerrariConCise is a Philips research project on Configurable Architecture Processors, which is expected to make this kind of systems cost-effective for large scale production in the near future. This article starts by presenting the ConCISe architecture. Then it describes the development of a simulator for a ConCISe processor and discusses some of the simulation results. The analysis of t...
Ciber-Rato: Um Ambiente de Simulação de Robots Móveis e Autónomos
Nuno Lau; Artur Pereira; Andreia Melo; António Neves; João FigueiredoCiber-Rato is a modality included in the Micro-Rato competition, directed to teams interested in the algorithmic issues and software control of mobile autonomous robots. This modality is supported by a software environment, which simulates both robots and a labirinth.This paper gives an overview of the simulation environment and presents the results and experiences gathered from the two...
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