5 documents found, page 1 of 1
Sort and Deep-SORT Based Multi-Object Tracking for Mobile Robotics: Evaluation ...
Pereira, Ricardo; Carvalho, Guilherme; Garrote, Luís; Nunes, Urbano J.Multi-Object Tracking (MOT) techniques have been under continuous research and increasingly applied in a diverse range of tasks. One area in particular concerns its application in navigation tasks of assistive mobile robots, with the aim to increase the mobility and autonomy of people suffering from mobility decay, or severe motor impairments, due to muscular, neurological, or osteoarticular decay. Therefore, i...
A Reinforcement Learning Assisted Eye-Driven Computer Game Employing a Decision...
Perdiz, João; Garrote, Luís; Pires, Gabriel Pereira; Nunes, Urbano J.Human-Machine Interfaces employing biosignal-based inputs are hard to translate to real-life applications, in part because of the difficulty of developing generalized models to classify physiological events representing a user's actions. In the proposed framework, an Electrooculography (EOG)-based game is operated through a pipeline of decision methods. These include a user-independent classification model of e...
A Self-Paced BCI With a Collaborative Controller for Highly Reliable Wheelchair...
Cruz, Aniana; Pires, Gabriel; Lopes, Ana; Carona, Carlos; Nunes, Urbano J.Brain-controlled wheelchairs (BCWs) are a promising solution for people with severe motor disabilities, who cannot use conventional interfaces. However, the low reliability of electroencephalographic signal decoding and the high user’s workload imposed by continuous control of a wheelchair requires effective approaches. In this article, we propose a self-paced P300-based brain–computer interface (BCI) combined ...
Weighted Euclidean Steiner Trees for Disaster-Aware Network Design
Garrote, Luís; Martins, Lúcia; Nunes, Urbano J.; Zachariasen, MartinWe consider the problem of constructing a Euclidean Steiner tree in a setting where the plane has been divided into polygonal regions, each with an associated weight. Given a set of points (terminals), the task is to construct a shortest interconnection of the points, where the cost of a line segment in a region is the Euclidean distance multiplied by the weight of the region. The problem is a natural generaliz...
Cooperative GNSS positioning aided by road-features measurements
Conde Bento, Luis; Bonnifait, Philippe; Nunes, Urbano J.Cooperation between road users through V2X communication is a way to improve GNSS localization accuracy. When vehicles localization systems involve standalone GNSS receivers, the resulting accuracy can be affected by satellite-specific errors of several meters. This paper studies how road-features like lane marking detected by on-board cameras can be exploited to reduce absolute position errors of cooperative v...