Encontrados 10 documentos, a visualizar página 1 de 1
A biological and real-time framework for hand gestures and head poses
Saleiro, Mário; Farrajota, Miguel; Terzic, Kasim; Rodrigues, J. M. F.; du Buf, J. M. H.Human-robot interaction is an interdisciplinary research area that aims at the development of social robots. Since social robots are expected to interact with humans and understand their behavior through gestures and body movements, cognitive psychology and robot technology must be integrated. In this paper we present a biological and real-time framework for detecting and tracking hands and heads. This framewor...
A low-cost classroom-oriented educational robotics system
Saleiro, Mário; Carmo, Bruna; Rodrigues, J. M. F.; du Buf, J. M. H.Over the past few years, there has been a growing interest in using robots in education. The use of these tangible devices in combination with problem-based learning activities results in more motivated students, higher grades and a growing interest in the STEM areas. However, most educational robotics systems still have some restrictions like high cost, long setup time, need of installing software in children'...
Biological models for active vision: towards a unified architecture
Terzic, Kasim; Lobato, David; Saleiro, Mário; Martins, Jaime A.; Farrajota, Miguel; Rodrigues, J. M. F.; du Buf, J. M. H.Building a general-purpose, real-time active vision system completely based on biological models is a great challenge. We apply a number of biologically plausible algorithms which address different aspects of vision, such as edge and keypoint detection, feature extraction,optical flow and disparity, shape detection, object recognition and scene modelling into a complete system. We present some of the experiment...
Minimalistic vision-based cognitive SLAM
Saleiro, Mário; Rodrigues, J. M. F.; du Buf, J. M. H.The interest in cognitive robotics is still increasing, a major goal being to create a system which can adapt to dynamic environments and which can learn from its own experiences. We present a new cognitive SLAM architecture, but one which is minimalistic in terms of sensors and memory. It employs only one camera with pan and tilt control and three memories, without additional sensors nor any odometry. Short-te...
Multi-scale cortical keypoints for realtime hand tracking and gesture recognition
Farrajota, Miguel; Saleiro, Mário; Tersic, K.; Rodrigues, J. M. F.; du Buf, J. M. H.Human-robot interaction is an interdisciplinary research area which aims at integrating human factors, cognitive psychology and robot technology. The ultimate goal is the development of social robots. These robots are expected to work in human environments, and to understand behavior of persons through gestures and body movements. In this paper we present a biological and realtime framework for detecting and tr...
The SmartVision Navigation Prototype for Blind Users
du Buf, J. M. H.; Barroso, João; Rodrigues, J. M. F.; Paredes, Hugo; Farrajota, Miguel; Fernandes, Hugo; José, João; Teixeira, Victor; Saleiro, MárioThe goal of the Portuguese project "SmartVision: active vision for the blind" is to develop a small, portable and cheap yet intelligent and reliable system for assisting the blind and visually impaired while navigating autonomously, both in- and outdoor. In this article we present an overview of the prototype, design issues, and its different modules which integrate GPS and Wi-Fi localisation with a GIS, passiv...
Visão activa para robô cognitivo
Saleiro, MárioDissertação de mest., Engenharia Eléctrica e Electrónica (Tecnologias de Informação e Telecomunicações), Instituto Superior de Engenharia, Univ. do Algarve, 2011
Cognitive robotics: a new approach to simultaneous localisation and mapping
Saleiro, Mário; Rodrigues, J. M. F.; du Buf, J. M. H.Most simultaneous localisation and mapping (SLAM) solutions were developed for navigation of non-cognitive robots. By using a variety of sensors, the distances to walls and other objects are determined, which are then used to generate a map of the environment and to update the robot’s position. When developing a cognitive robot, such a solution is not appropriate since it requires accurate sensors and precise o...
The SmartVision navigation prototype for the blind
du Buf, J. M. H.; Barroso, João; Rodrigues, J. M. F.; Paredes, Hugo; Farrajota, Miguel; Fernandes, Hugo; José, João; Teixeira, Victor; Saleiro, MárioThe goal of the project "SmartVision: active vision for the blind" is to develop a small and portable but intelligent and reliable system for assisting the blind and visually impaired while navigating autonomously, both outdoor and indoor. In this paper we present an overview of the prototype, design issues, and its different modules which integrate a GIS with GPS, Wi-Fi, RFID tags and computer vision. The prot...
Automatic hand or head gesture interface for individuals with motor impairments...
Saleiro, Mário; Rodrigues, J. M. F.; du Buf, J. M. H.Senior citizens, very young children and users with different kinds of impairments are often prevented from enjoying the benefits of latest technologies for assistance, accessibility and usability, often due to unfriendly or expensive interfaces. We present a friendly and inexpensive system that allows one to interact with a computer, using only a few distinct but intuitive gestures which are translated into mo...
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