4 documents found, page 1 of 1
Visual Cortical Plasticity: Molecular Mechanisms as Revealed by Induction Parad...
Ribeiro, Francisco M.; Castelo-Branco, Miguel; Gonçalves, Joana; Martins, JoãoAssessing the molecular mechanism of synaptic plasticity in the cortex is vital for identifying potential targets in conditions marked by defective plasticity. In plasticity research, the visual cortex represents a target model for intense investigation, partly due to the availability of different in vivo plasticity-induction protocols. Here, we review two major protocols: ocular-dominance (OD) and cross-modal ...
FLOOR - Forklift laser omnidirectional robot
Pinto, Vítor H.; Ribeiro, Francisco M.; Brito, Thadeu; Pereira, Ana I.; Lima, José; Costa, Paulo Gomes daThe robot presented in this paper was developed with the main focus on participating in robotic competitions. Therefore, the subsystems here presented were developed taking into account performance criteria instead of simplicity. Nonetheless, this paper also presents background knowledge in some basic concepts regarding robot localization, navigation, color identification and control, all of which are key for a...
Deep convolutional neural networks applied to hand keypoints estimation
Santos, Bruno M.; Pais, Pedro; Ribeiro, Francisco M.; Lima, José; Goncalves, Gil; Pinto, Vítor H.Accurate estimation of hand shape and position is an important task in various applications, such as human-computer interaction, human-robot interaction, and virtual and augmented reality. In this paper, it is proposed a method to estimate the hand keypoints from single and colored images utilizing the pre-trained deep convolutional neural networks VGG-16 and VGG-19. The method is evaluated on the FreiHAND data...
Modeling and realistic simulation of a dexterous robotic hand: SVH hand use-case
Ribeiro, Francisco M.; Correia, Tiago; Lima, José; Goncalves, Gil; Pinto, Vítor H.Recent developments in dexterous robotic manipulation technologies allowed for the design of very compact, yet capable, multi-fingered robotic hands. These can be designed to emulate the human touch and feel, reducing the aforementioned need for human expertise in highly detailed tasks. The presented work focused on the application of two simulation platforms Gazebo and MuJoCo - to a use-case of a Schunk Five F...