Stereo Reconstruction of a Submerged Scene. - Ricardo Ferreira 002; João Paulo Costeira; João A. Santos (IbPRIA (1), 2005)

Optimal Multi-frame Correspondence with Assignment Tensors. - Raphael Oliveira; Ricardo Ferreira 002; João Paulo Costeira (ECCV (3), 2006)

Newton Method for Riemannian Centroid Computation in Naturally Reductive Homogeneous Spaces. - Ricardo Ferreira 002; João Manuel Freitas Xavier; João Paulo Costeira; Victor A. N. Barroso (ICASSP (3), 2006)

Shape From Motion of Nonrigid Objects: The Case of Isometrically Deformable Flat Surfaces. - Ricardo Ferreira 002; João Manuel Freitas Xavier; João Paulo Costeira (BMVC, 2009)

Reconstruction of isometrically deformable flat surfaces in 3D from multiple camera images. - Ricardo Ferreira 002; João Manuel Freitas Xavier; João Paulo Costeira (ICASSP, 2009)

Analysis of Inverse Reinforcement Learning with Perturbed Demonstrations. - Francisco S. Melo; Manuel Lopes 001; Ricardo Ferreira 002 (ECAI, 2010)

A measure of good motor actions for active visual perception. - Jonas Ruesch; Ricardo Ferreira 002; Alexandre Bernardino (ICDL-EPIROB, 2011)

An expected perception architecture using visual 3D reconstruction for a humanoid robot. - Nuno Moutinho; Nino Cauli; Egidio Falotico; Ricardo Ferreira 002; José António Gaspar; Alexandre Bernardino; José Santos-Victor; Paolo Dario; Cecilia Laschi (IROS, 2011)

An Approach toward Self-organization of Artificial Visual Sensorimotor Structures. - Jonas Ruesch; Ricardo Ferreira 002; Alexandre Bernardino (BICA, 2012)

Online calibration of a humanoid robot head from relative encoders, IMU readings and visual data. - Nuno Moutinho; Martim Brandao; Ricardo Ferreira 002; José António Gaspar; Alexandre Bernardino; Atsuo Takanishi; José Santos-Victor (IROS, 2012)

Self-organization of Visual Sensor Topologies Based on Spatiotemporal Cross-Correlation. - Jonas Ruesch; Ricardo Ferreira 002; Alexandre Bernardino (SAB, 2012)

Predicting Visual Stimuli From Self-Induced Actions: An Adaptive Model of a Corollary Discharge Circuit. - Jonas Ruesch; Ricardo Ferreira 002; Alexandre Bernardino (IEEE Trans. Auton. Ment. Dev., 2012)

Estimation of camera calibration uncertainty using LIDAR data. - Agustin Alberto Ortega Jimenez; Ricardo Galego; Ricardo Ferreira 002; Alexandre Bernardino; José António Gaspar; Juan Andrade-Cetto (ECMR, 2013)

Topological Auto-Calibration of Central Imaging Sensors. - Ricardo Galego; Ricardo Ferreira 002; Alexandre Bernardino; Etienne Grossmann; José António Gaspar (IbPRIA, 2013)

Integrating the whole cost-curve of stereo into occupancy grids. - Martim Brandao; Ricardo Ferreira 002; Kenji Hashimoto; José Santos-Victor; Atsuo Takanishi (IROS, 2013)

A computational approach on the co-development of artificial visual sensorimotor. - Jonas Ruesch; Ricardo Ferreira 002; Alexandre Bernardino (Adapt. Behav., 2013)

Newton Algorithms for Riemannian Distance Related Problems on Connected Locally Symmetric Manifolds. - Ricardo Ferreira 002; João Manuel Freitas Xavier; João Paulo Costeira; Victor A. N. Barroso (IEEE J. Sel. Top. Signal Process., 2013)

Markerless online stereo calibration for a humanoid robot. - Nuno Moutinho; Ricardo Ferreira 002; José António Gaspar; Alexandre Bernardino; José Santos-Victor (ICDL-EPIROB, 2014)

Sensori-motor networks vs neural networks for visual stimulus prediction. - Ricardo Santos 003; Ricardo Ferreira 002; Ângelo Cardoso; Alexandre Bernardino (ICDL-EPIROB, 2014)

Eye-hand online adaptation during reaching tasks in a humanoid robot. - Pedro Vicente; Ricardo Ferreira 002; Lorenzo Jamone; Alexandre Bernardino (ICDL-EPIROB, 2014)

On the formulation, performance and design choices of Cost-Curve Occupancy Grids for stereo-vision based 3D reconstruction. - Martim Brandao; Ricardo Ferreira 002; Kenji Hashimoto; José Santos-Victor; Atsuo Takanishi (IROS, 2014)

Calibration of an Outdoor Distributed Camera Network with a 3D Point Cloud. - Agustin Alberto Ortega Jimenez; Manuel Silva; Ernesto Homar Teniente Avilés; Ricardo Ferreira 002; Alexandre Bernardino; José António Gaspar; Juan Andrade-Cetto (Sensors, 2014)

Visualization of Passively Extracted HL7 Production Metrics. - Ricardo Ferreira 002; Manuel Eduardo Correia; Francisco Nuno Rocha Goncalves; Ricardo João Cruz Correia (HEALTHINF, 2015)

GPU-Enabled Particle Based Optimization for Robotic-Hand Pose Estimation and Self-Calibration. - Pedro Vicente; Ricardo Ferreira 002; Lorenzo Jamone; Alexandre Bernardino (ICARSC, 2015)

Low-rank forward models: A path to the self-organization of visuo-motor systems. - Ângelo Cardoso; Ricardo Ferreira 002; Ricardo Santos 003; Alexandre Bernardino (IROS, 2015)

Vizzy: A Humanoid on Wheels for Assistive Robotics. - Plinio Moreno; Ricardo Rodrigues Nunes; Rui Pimentel de Figueiredo; Ricardo Ferreira 002; Alexandre Bernardino; José Santos-Victor; Ricardo Beira; Luís Vargas; Duarte Aragão; Miguel Aragão (ROBOT (1), 2015)

Uncertainty analysis of the DLT-Lines calibration algorithm for cameras with radial distortion. - Ricardo Galego; Agustin Alberto Ortega Jimenez; Ricardo Ferreira 002; Alexandre Bernardino; Juan Andrade-Cetto; José António Gaspar (Comput. Vis. Image Underst., 2015)

Open-Source Based Integration Solution for Hospitals. - Raphael Oliveira; Duarte Ferreira; Ricardo Ferreira 002; Ricardo Cruz-Correia (CBMS, 2016)

On Stereo Confidence Measures for Global Methods: Evaluation, New Model and Integration into Occupancy Grids. - Martim Brandao; Ricardo Ferreira 002; Kenji Hashimoto; Atsuo Takanishi; José Santos-Victor (IEEE Trans. Pattern Anal. Mach. Intell., 2016)

SNet: Co-Developing Artificial Retinas and Predictive Internal Models for Real Robots. - Ricardo Santos 003; Ricardo Ferreira 002; Ângelo Cardoso; Alexandre Bernardino (IEEE Trans. Cogn. Dev. Syst., 2017)

RANSIP : From noisy point clouds to complete ear models, unsupervised. - Filipa Valdeira; Ricardo Ferreira 002; Alessandra Micheletti; Cláudia Soares (CoRR, 2020)

From Noisy Point Clouds to Complete Ear Shapes: Unsupervised Pipeline. - Filipa Valdeira; Ricardo Ferreira 002; Alessandra Micheletti; Cláudia Soares (IEEE Access, 2021)

Probabilistic Registration for Gaussian Process 3D shape modelling in the presence of extensive missing data. - Filipa Valdeira; Ricardo Ferreira 002; Alessandra Micheletti; Cláudia Soares (CoRR, 2022)

Probability of Collision of satellites and space debris for short-term encounters: Rederivation and fast-to-compute upper and lower bounds. - Ricardo Ferreira 002; Cláudia Soares; Marta Guimarães (CoRR, 2023)

One-Shot Initial Orbit Determination in Low-Earth Orbit. - Ricardo Ferreira 002; Marta Guimarães; Filipa Valdeira; Cláudia Soares (CoRR, 2023)

Probabilistic Registration for Gaussian Process Three-Dimensional Shape Modelling in the Presence of Extensive Missing Data. - Filipa Valdeira; Ricardo Ferreira 002; Alessandra Micheletti; Cláudia Soares (SIAM J. Math. Data Sci., 2023)

Satellite Safe Margin: Fast solutions for Conjunction Analysis. - Ricardo Ferreira 002; Marta Guimarães; Cláudia Soares (CoRR, 2024)

Generalizing Trilateration: Approximate Maximum Likelihood Estimator for Initial Orbit Determination in Low Earth Orbit. - Ricardo Ferreira 002; Filipa Valdeira; Marta Guimarães; Cláudia Soares (IEEE Trans. Aerosp. Electron. Syst., 2025)