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Sobre
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Sobre

Filipe Neves dos Santos nasceu em São Paio de Oleiros, em Portugal, em 1979. Doutorado em engenharia eletrotécnica e computadores (2014) pela Faculdade de Engenharia da Universidade do Porto (FEUP), Mestrado em engenharia eletrotécnica e computadores – automação e robótica (2007) pelo Instituto Superior Técnico (IST) da Universidade Técnica de Lisboa, licenciado em engenharia eletrotécnica e computadores (2003) pelo Instituto Superior de Engenharia do Porto (ISEP). Profissionalmente é apaixonado pela investigação e desenvolvimento de soluções robóticas e automatização que permitam resolver problemas reais, desejos e necessidades da nossa sociedade e contribuir para a autossustentabilidade e justiça da economia global. Neste momento a sua principal linha de investigação centra-se no desenvolvimento de soluções robotizadas para o setor agrícola e florestal, onde é necessária uma maior eficiência para a nossa autossustentabilidade mundial. Em 2013, considerando a realidade de Portugal e os principais roteiros de inovação, estruturou um roteiro de investigação centrado no desenvolvimento de robótica e sistemas inteligentes para o contexto agrícola e florestal. Nomeadamente, em contextos de declive acentuado e sem acesso a GPS/GNSS, onde são requeridas a execução de tarefas tais como: monitorização (por terra), pulverização de precisão, logística, poda e colheita seletiva. A execução eficiente destas tarefas depende em grande parte da robustez dos sistemas robóticos específicos, tais como:  Perceção visual;- Navegação (localização, mapeamento e planeamento de caminhos seguros); e  Manipulação e ferramentas especificas. A sua formação em engenharia MSc (fusão sensorial e GPS/GNSS), PhD (mapeamento e localização semântica), experiência de 4 anos como empreendedor (startup tecnológica), participação e coordenação de projetos de investigação na área da robótica durante mais de 12 anos, 5 anos de experiência em tarefas de contabilidade e gestão (empresa familiar), e 6 anos como técnico de eletrónica fornecerão o saber saber e saber fazer para que possa contribuir para o sucesso do futuro da robótica agrícola.

Tópicos
de interesse
Detalhes

Detalhes

017
Publicações

2019

Online object trajectory classification using FPGA-SoC devices

Autores
Shinde, P; Machado, P; Santos, FN; McGinnity, TM;

Publicação
Advances in Intelligent Systems and Computing

Abstract
Real time classification of objects using computer vision techniques are becoming relevant with emergence of advanced perceptions systems required by, surveillance systems, industry 4.0 robotics and agricultural robots. Conventional video surveillance basically detects and tracks moving object whereas there is no indication of whether the object is approaching or receding the camera (looming). Looming detection and classification of object movements aids in knowing the position of the object and plays a crucial role in military, vehicle traffic management, robotics, etc. To accomplish real-time object trajectory classification, a contour tracking algorithm is necessary. In this paper, an application is made to perform looming detection and to detect imminent collision on a system-on-chip field-programmable gate array (SoC- FPGA) hardware. The work presented in this paper was designed for running in Robotic platforms, Unmanned Aerial Vehicles, Advanced Driver Assistance System, etc. Due to several advantages of SoC-FPGA the proposed work is performed on the hardware. The proposed work focusses on capturing images, processing, classifying the movements of the object and issues an imminent collision warning on-the-fly. This paper details the proposed software algorithm used for the classification of the movement of the object, simulation of the results and future work. © Springer Nature Switzerland AG 2019.

2019

Localization Based on Natural Features Detector for Steep Slope Vineyards

Autores
Mendes, JM; dos Santos, FN; Ferraz, NA; do Couto, PM; dos Santos, RM;

Publicação
Journal of Intelligent and Robotic Systems: Theory and Applications

Abstract
Placing ground robots to work in steep slope vineyards is a complex challenge. The Global Positioning System (GPS) signal is not always available and accurate. A reliable localization approach to detect natural features for this environment is required. This paper presents an improved version of a visual detector for Vineyards Trunks and Masts (ViTruDe) and, a robot able to cope pruning actions in steep slope vineyards (AgRob V16). In addition, it presents an augmented data-set for other localization and mapping algorithm benchmarks. ViTruDe accuracy is higher than 95% under our experiments. Under a simulated runtime test, the accuracy lies between 27% - 96% depending on ViTrude parametrization. This approach can feed a localization system to solve a GPS signal absence. The ViTruDe detector also considers economic constraints and allows to develop cost-effective robots. The augmented training and datasets are publicly available for future research work. © 2018 Springer Science+Business Media B.V., part of Springer Nature

2019

Monocular Visual Odometry Benchmarking and Turn Performance Optimization

Autores
Aguiar, A; Sousa, A; dos Santos, FN; Oliveira, M;

Publicação
19th IEEE International Conference on Autonomous Robot Systems and Competitions, ICARSC 2019

Abstract
Developing ground robots for crop monitoring and harvesting in steep slope vineyards is a complex challenge due to two main reasons: harsh condition of the terrain and unstable localization accuracy obtained with Global Navigation Satellite System. In this context, a reliable localization system requires an accurate and redundant information to Global Navigation Satellite System and wheel odometry based system. To pursue this goal we benchmark 3 well known Visual Odometry methods with 2 datasets. Two of these are feature-based Visual Odometry algorithms: Libviso2 and SVO 2.0. The third is an appearance-based Visual Odometry algorithm called DSO. In monocular Visual Odometry, two main problems appear: pure rotations and scale estimation. In this paper, we focus on the first issue. To do so, we propose a Kalman Filter to fuse a single gyroscope with the output pose of monocular Visual Odometry, while estimating gyroscope's bias continuously. In this approach we propose a non-linear noise variation that ensures that bias estimation is not affected by Visual Odometry resultant rotations. We compare and discuss the three unchanged methods and the three methods with the proposed additional Kalman Filter. For tests, two public datasets are used: the Kitti dataset and another built in-house. Results show that our additional Kalman Filter highly improves Visual Odometry performance in rotation movements. © 2019 IEEE.

2019

Parallelization of a Vine Trunk Detection Algorithm for a Real Time Robot Localization System

Autores
Azevedo, F; Shinde, P; Santos, L; Mendes, J; Santos, FN; Mendonca, H;

Publicação
19th IEEE International Conference on Autonomous Robot Systems and Competitions, ICARSC 2019

Abstract
Developing ground robots for crop monitoring and harvesting in steep slope vineyards is a complex challenge due to two main reasons: harsh condition of the terrain and unstable localization accuracy obtained with Global Navigation Satellite System (GNSS). In this context, a reliable localization system requires an accurate detector for high density of natural/artificial features. In previous works, we presented a novel visual detector for Vineyards Trunks and Masts (ViTruDe) with high levels of detection accuracy. However, its implementation on the most common processing units - central processing units (CPU), using a standard programming language (C/C++), is unable to reach the processing efficiency requirements for real time operation. In this work, we explored parallelization capabilities of processing units, such as graphics processing units (GPU), in order to accelerate the processing time of ViTruDe. This work gives a general perspective on how to parallelize a generic problem in a GPU based solution, while exploring its efficiency when applied to the problem at hands. The ViTruDe detector for GPU was developed considering the constraints of a cost-effective robot to carry-out crop monitoring tasks in steep slope vineyard environments. We compared the proposed ViTruDe implementation on GPU using Compute Unified Compute Unified Device Architecture(CUDA) and CPU, and the achieved solution is over eighty times faster than its CPU counterpart. The training and test data are made public for future research work. This approach is a contribution for an accurate and reliable localization system that is GNSS-free. © 2019 IEEE.

2019

Path Planning approach with the extraction of Topological Maps from Occupancy Grid Maps in steep slope vineyards

Autores
Santos, L; Santos, FN; Magalhaes, S; Costa, P; Reis, R;

Publicação
19th IEEE International Conference on Autonomous Robot Systems and Competitions, ICARSC 2019

Abstract
Robotic platforms are being developed for precision agriculture, to execute repetitive and long term tasks. Autonomous monitoring, pruning, spraying and harvesting are some of these agricultural tasks, which requires an advanced path planning system aware of maximum robot capabilities (mobile platform and arms), terrain slopes and plant/fruits position. The state of the art path planning systems have two limitations: are not optimized for large regions and the path planning is not aware of agricultural tasks requirements. This work presents two solutions to overcome these limitations. It considers the VGR2TO (Vineyard Grid Map to Topological) approach to extract from a 2D grid map a topological map, to reduce the total amount of memory needed by the path planning algorithm and to reduce path search space. Besides, introduces an extension to the chosen algorithm, the Astar algorithm, to ensure a safe path and a maximum distance from the vine trees to enable robotic operations on the tree and its fruits. © 2019 IEEE.

Teses
supervisionadas

2016

Sistema integrado, adaptativo e inteligente para a gestão energética de robôs

Autor
Nuno André Ferreira Ferraz

Instituição
UTAD