Helder Araújo

ORCID

Publication Activity (10 Years)

Years Active: 1991-2024
Publications (10 Years): 53

Top Venues

Publications

Gopi Krishna Erabati, Helder Araújo
SRFDet3D: Sparse Region Fusion based 3D Object Detection. Neurocomputing 593 (2024)
Gopi Krishna Erabati, Helder Araújo
DeLiVoTr: Deep and light-weight voxel transformer for 3D object detection. Intell. Syst. Appl. 22 (2024)
Gopi Krishna Erabati, Helder Araújo
DAFDeTr: Deformable Attention Fusion Based 3D Detection Transformer. ROBOVIS (2024)
Teresa Salazar, João Gama, Helder Araújo, Pedro Henriques Abreu
Unveiling Group-Specific Distributed Concept Drift: A Fairness Imperative in Federated Learning. CoRR (2024)
Gopi Krishna Erabati, Helder Araújo
Li3DeTr: A LiDAR based 3D Detection Transformer. WACV (2023)
Eva Curto, Helder Araújo
3D Motion Estimation of Volumetric Deformable Objects from RGB-D Images Synthetically Generated by a Multi-camera System. ROBOT (1) (2023)
Teresa Salazar, Miguel Fernandes, Helder Araújo, Pedro Henriques Abreu
FAIR-FATE: Fair Federated Learning with Momentum. ICCS (1) (2023)
Gopi Krishna Erabati, Helder Araújo
MSF3DDETR: Multi-Sensor Fusion 3D Detection Transformer for Autonomous Driving. CoRR (2022)
Teresa Salazar, Miguel Fernandes, Helder Araújo, Pedro Henriques Abreu
FAIR-FATE: Fair Federated Learning with Momentum. CoRR (2022)
Gopi Krishna Erabati, Helder Araújo
Li3DeTr: A LiDAR based 3D Detection Transformer. CoRR (2022)
Ignacio Cuiral-Zueco, Gonzalo López-Nicolás, Helder Araújo
Gripper positioning for object deformation tasks. ICRA (2022)
Eva Curto, Helder Araújo
An Experimental Assessment of Depth Estimation in Transparent and Translucent Scenes for Intel RealSense D415, SR305 and L515. Sensors 22 (19) (2022)
Teresa Salazar, Miriam Seoane Santos, Helder Araújo, Pedro Henriques Abreu
FAWOS: Fairness-Aware Oversampling Algorithm Based on Distributions of Sensitive Attributes. IEEE Access 9 (2021)
Marina Oliveira, Helder Araújo, Isabel N. Figueiredo, Luís Pinto, Eva Curto, Luis Perdigoto
Registration of Consecutive Frames From Wireless Capsule Endoscopy for 3D Motion Estimation. IEEE Access 9 (2021)
Francisco Lourenço, Helder Araújo
Intel RealSense SR305, D415 and L515: Experimental Evaluation and Comparison of Depth Estimation. VISIGRAPP (4: VISAPP) (2021)
Eva Curto, Helder Araújo
3D Reconstruction of Deformable Objects from RGB-D Cameras: An Omnidirectional Inward-facing Multi-camera System. VISIGRAPP (4: VISAPP) (2021)
Kutsev Bengisu Ozyoruk, Guliz Irem Gokceler, Taylor L. Bobrow, Gulfize Coskun, Kagan Incetan, Yasin Almalioglu, Faisal Mahmood, Eva Curto, Luis Perdigoto, Marina Oliveira, Hasan Sahin, Helder Araújo, Henrique Alexandrino, Nicholas J. Durr, Hunter B. Gilbert, Mehmet Turan
EndoSLAM dataset and an unsupervised monocular visual odometry and depth estimation approach for endoscopic videos. Medical Image Anal. 71 (2021)
Kutsev Bengisu Ozyoruk, Kagan Incetan, Gulfize Coskun, Guliz Irem Gokceler, Yasin Almalioglu, Faisal Mahmood, Nicholas J. Durr, Eva Curto, Luis Perdigoto, Marina Oliveira, Helder Araújo, Henrique Alexandrino, Hunter B. Gilbert, Mehmet Turan
Quantitative Evaluation of Endoscopic SLAM Methods: EndoSLAM Dataset. CoRR (2020)
Gopi Krishna Erabati, Helder Araújo
SL3D - Single Look 3D Object Detection based on RGB-D Images. DICTA (2020)
Rui Figueiredo, Atabak Dehban, Plinio Moreno, Alexandre Bernardino, José Santos-Victor, Helder Araújo
A robust and efficient framework for fast cylinder detection. Robotics Auton. Syst. 117 (2019)
Mehmet Turan, Yasin Almalioglu, Hunter B. Gilbert, Faisal Mahmood, Nicholas J. Durr, Helder Araújo, Alp Eren Sari, Anurag Ajay, Metin Sitti
Learning to Navigate Endoscopic Capsule Robots. IEEE Robotics Autom. Lett. 4 (3) (2019)
Fernanda da C. e C. Faria, Jorge Batista, Helder Araújo
Biologically inspired computational modeling of motion based on middle temporal area. Paladyn J. Behav. Robotics 9 (1) (2018)
Mehmet Turan, Yasin Almalioglu, Evin Pinar Örnek, Helder Araújo, Mehmet Fatih Yanik, Metin Sitti
Magnetic-Visual Sensor Fusion-based Dense 3D Reconstruction and Localization for Endoscopic Capsule Robots. CoRR (2018)
Mehmet Turan, Yasin Almalioglu, Helder Araújo, Ender Konukoglu, Metin Sitti
Deep EndoVO: A recurrent convolutional neural network (RCNN) based visual odometry approach for endoscopic capsule robots. Neurocomputing 275 (2018)
Mehmet Turan, Yusuf Yigit Pilavci, Ipek Ganiyusufoglu, Helder Araújo, Ender Konukoglu, Metin Sitti
Sparse-then-dense alignment-based 3D map reconstruction method for endoscopic capsule robots. Mach. Vis. Appl. 29 (2) (2018)
Mehmet Turan, Yasin Almalioglu, Evin Pinar Örnek, Helder Araújo, Mehmet Fatih Yanik, Metin Sitti
Magnetic- Visual Sensor Fusion-based Dense 3D Reconstruction and Localization for Endoscopic Capsule Robots. IROS (2018)
Rui Pimentel de Figueiredo, Alexandre Bernardino, José Santos-Victor, Helder Araújo
On the advantages of foveal mechanisms for active stereo systems in visual search tasks. Auton. Robots 42 (2) (2018)
Mehmet Turan, Yasin Almalioglu, Hunter Gilbert, Helder Araújo, A. Taylan Cemgil, Metin Sitti
EndoSensorFusion: Particle Filtering-Based Multi-Sensory Data Fusion with Switching State-Space Model for Endoscopic Capsule Robots. ICRA (2018)
Yizhen Lao, Omar Ait-Aider, Helder Araújo
Robustified Structure from Motion with rolling-shutter camera using straightness constraint. Pattern Recognit. Lett. 111 (2018)
Mehmet Turan, Yasin Almalioglu, Helder Araújo, Ender Konukoglu, Metin Sitti
Deep EndoVO: A Recurrent Convolutional Neural Network (RCNN) based Visual Odometry Approach for Endoscopic Capsule Robots. CoRR (2017)
Mehmet Turan, Abdullah Abdullah, Redhwan Jamiruddin, Helder Araújo, Ender Konukoglu, Metin Sitti
Six Degree-of-Freedom Localization of Endoscopic Capsule Robots using Recurrent Neural Networks embedded into a Convolutional Neural Network. CoRR (2017)
S. Jafar Hosseini, Helder Araújo
Patch-based reconstruction of surfaces undergoing different types of deformations. Signal Image Video Process. 11 (7) (2017)
Rui Figueiredo, João Avelino, Atabak Dehban, Alexandre Bernardino, Pedro U. Lima, Helder Araújo
Efficient Resource Allocation for Sparse Multiple Object Tracking. VISIGRAPP (6: VISAPP) (2017)
Rui Figueiredo, Atabak Dehban, Alexandre Bernardino, José Santos-Victor, Helder Araújo
Shape-based attention for identification and localization of cylindrical objects. ICDL-EPIROB (2017)
Mehmet Turan, Yusuf Yigit Pilavci, Redhwan Jamiruddin, Helder Araújo, Ender Konukoglu, Metin Sitti
A fully dense and globally consistent 3D map reconstruction approach for GI tract to enhance therapeutic relevance of the endoscopic capsule robot. CoRR (2017)
Mehmet Turan, Jahanzaib Shabbir, Helder Araújo, Ender Konukoglu, Metin Sitti
A deep learning based fusion of RGB camera information and magnetic localization information for endoscopic capsule robots. Int. J. Intell. Robotics Appl. 1 (4) (2017)
Mehmet Turan, Yasin Almalioglu, Helder Araújo, Ender Konukoglu, Metin Sitti
A Non-Rigid Map Fusion-Based RGB-Depth SLAM Method for Endoscopic Capsule Robots. CoRR (2017)
Mehmet Turan, Yasin Almalioglu, Hunter Gilbert, Helder Araújo, A. Taylan Cemgil, Metin Sitti
EndoSensorFusion: Particle Filtering-Based Multi-sensory Data Fusion with Switching State-Space Model for Endoscopic Capsule Robots. CoRR (2017)
Tiago J. Dias, Helder Araújo, Pedro Miraldo
3D Reconstruction with Low Resolution, Small Baseline and High Radial Distortion Stereo Images. CoRR (2017)
Mehmet Turan, Yasin Almalioglu, Helder Araújo, Ender Konukoglu, Metin Sitti
A non-rigid map fusion-based direct SLAM method for endoscopic capsule robots. Int. J. Intell. Robotics Appl. 1 (4) (2017)
S. Jafar Hosseini, Helder Araújo
SDP-based approach to monocular reconstruction of inextensible surfaces. IET Comput. Vis. 11 (1) (2017)
Mehmet Turan, Yusuf Yigit Pilavci, Ipek Ganiyusufoglu, Helder Araújo, Ender Konukoglu, Metin Sitti
Sparse-then-Dense Alignment based 3D Map Reconstruction Method for Endoscopic Capsule Robots. CoRR (2017)
Tiago J. Dias, Helder Araújo, Pedro Miraldo
3D Reconstruction with Low Resolution, Small Baseline and High Radial Distortion Stereo Images. ICDSC (2016)
S. Jafar Hosseini, Helder Araújo
From D-RGB-based reconstruction toward a mesh deformation model for monocular reconstruction of isometric surfaces. EURASIP J. Image Video Process. 2016 (2016)
João R. Cardoso, Pedro Miraldo, Helder Araújo
Plücker Correction Problem: Analysis and Improvements in Efficiency. CoRR (2016)
Luis Perdigoto, Helder Araújo
Estimation of mirror shape and extrinsic parameters in axial non-central catadioptric systems. Image Vis. Comput. 54 (2016)
João R. Cardoso, Pedro Miraldo, Helder Araújo
Plücker correction problem: Analysis and improvements in efficiency. ICPR (2016)
S. Jafar Hosseini, Helder Araújo
3D Estimation of Extensible Surfaces Through a Local Monocular Reconstruction Technique. ACCV Workshops (2) (2016)
Pedro Miraldo, Helder Araújo
Direct Solution to the Minimal Generalized Pose. IEEE Trans. Cybern. 45 (3) (2015)
Pedro Miraldo, Helder Araújo
Generalized essential matrix: Properties of the singular value decomposition. Image Vis. Comput. 34 (2015)
Rudi Penne, Carolina Raposo, Luc Mertens, Bart Ribbens, Helder Araújo
Investigating new calibration methods without feature detection for TOF cameras. Image Vis. Comput. 43 (2015)
Pedro Miraldo, Helder Araújo, Nuno Gonçalves
Pose Estimation for General Cameras Using Lines. IEEE Trans. Cybern. 45 (10) (2015)
Pedro Miraldo, Helder Araújo
Pose Estimation for Non-Central Cameras Using Planes. J. Intell. Robotic Syst. 80 (3-4) (2015)
S. Jafar Hosseini, Helder Araújo
A ToF-Aided Approach to 3D Mesh-Based Reconstruction of Isometric Surfaces. ICPRAM (Selected Papers) (2014)
Hadi Aliakbarpour, Omar Tahri, Helder Araújo
Visual servoing of mobile robots using non-central catadioptric cameras. Robotics Auton. Syst. 62 (11) (2014)
S. Jafar Hosseini, Helder Araújo
Structure from Motion - ToF-aided 3D Reconstruction of Isometric Surfaces. ICPRAM (2014)
Omar Tahri, Helder Araújo, Youcef Mezouar, François Chaumette
Efficient Iterative Pose Estimation Using an Invariant to Rotations. IEEE Trans. Cybern. 44 (2) (2014)
S. Jafar Hosseini, Helder Araújo
3D Estimation of Isometric Surfaces Using a ToF-Based Approach. ISVC (2) (2014)
Pedro Miraldo, Helder Araújo
Planar pose estimation for general cameras using known 3D lines. IROS (2014)
Leo Baudouin, Youcef Mezouar, Omar Ait-Aider, Helder Araújo
Multi-modal Sensors Path Merging. IAS (2014)
Pedro Miraldo, Helder Araújo
A simple and robust solution to the minimal general pose estimation. ICRA (2014)
Pedro Miraldo, Helder Araújo
Pose estimation for non-central cameras using planes. ICARSC (2014)
Pedro Miraldo, Helder Araújo
Calibration of Smooth Camera Models. IEEE Trans. Pattern Anal. Mach. Intell. 35 (9) (2013)
Luis Perdigoto, Helder Araújo
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems. Comput. Vis. Image Underst. 117 (8) (2013)
Hadi Aliakbarpour, Omar Tahri, Helder Araújo
Image-based servoing of non-holonomic vehicles using non-central catadioptric cameras. RoMoCo (2013)
Omar Tahri, Helder Araújo, Youcef Mezouar, François Chaumette
Efficient decoupled pose estimation from a set of points. IROS (2013)
Omar Tahri, Helder Araújo, François Chaumette, Youcef Mezouar
Robust image-based visual servoing using invariant visual information. Robotics Auton. Syst. 61 (12) (2013)
Omar Tahri, Helder Araújo
Non-central catadioptric cameras visual servoing for mobile robots using a radial camera model. IROS (2012)
David Palma, Helder Araújo, Marília Curado
Link quality estimation in wireless multi-hop networks using Kernel based methods. Comput. Networks 56 (16) (2012)
Luis Perdigoto, Helder Araújo
Reconstruction of 3D lines from a single axial catadioptric image using cross-ratio. ICPR (2012)
Pedro Miraldo, Helder Araújo, Joao Queiro
Point-based calibration using a parametric representation of the general imaging model. ICCV (2011)
Fernanda da C. e C. Faria, Jorge P. Batista, Helder Araújo
Bio-inspired Binocular Disparity with Position-Shift Receptive Field. DoCEIS (2010)
João Pedro Barreto, Luis Perdigoto, Rui Caseiro, Helder Araújo
Active Stereo Tracking of Nle 3 Targets Using Line Scan Cameras. IEEE Trans. Robotics 26 (3) (2010)
Nuno Gonçalves, Helder Araújo
Estimating parameters of noncentral catadioptric systems using bundle adjustment. Comput. Vis. Image Underst. 113 (1) (2009)
Niklas Wilming, Felix Wolfsteller, Peter König, Rui Caseiro, João Xavier, Helder Araújo
Attention Models for Vergence Movements based on the JAMF Framework and the POPEYE Robot. VISAPP (2) (2009)
Luis Perdigoto, João Pedro Barreto, Rui Caseiro, Helder Araújo
Active stereo tracking of multiple free-moving targets. CVPR (2009)
João Xavier, Helder Araújo
The Experimental Robotics Framework. SIMPAR (2008)
Nuno Martins, Helder Araújo
Calibration and Pose Estimation of a Pox-slits Camera from a Single Image. ISVC (2) (2008)
Nuno Gonçalves, Helder Araújo
Linear solution for the pose estimation of noncentral catadioptric systems. ICCV (2007)
João Pedro Barreto, Helder Araújo
Fitting conics to paracatadioptric projections of lines. Comput. Vis. Image Underst. 101 (3) (2006)
Helder Araújo
Active vision systems and catadioptric vision systems for robotic applications. CompIMAGE (2006)
Qian Yu, Helder Araújo, Hong Wang
A Stereovision Method for Obstacle Detection and Tracking in Non-Flat Urban Environments. Auton. Robots 19 (2) (2005)
Nuno Martins, Helder Araújo
A Calibration Algorithm for POX-Slits Camera. IbPRIA (1) (2005)
João Pedro Barreto, Helder Araújo
Geometric Properties of Central Catadioptric Line Images and Their Application in Calibration. IEEE Trans. Pattern Anal. Mach. Intell. 27 (8) (2005)
João Pedro Barreto, Helder Araújo
A General Framework for the Selection of World Coordinate Systems in Perspective and Catadioptric Imaging Applications. Int. J. Comput. Vis. 57 (1) (2004)
Nuno Gonçalves, Helder Araújo
Projection Model, 3D Reconstruction and Rigid Motion Estimation from Non-Central Catadioptric Images. 3DPVT (2004)
Nuno Gonçalves, Helder Araújo
Rigid Motion Estimation from Non-Central Catadioptric Images. ICPR (4) (2004)
João Pedro Barreto, Helder Araújo
Direct Least Square Fitting of Paracatadioptric Line Images. CVPR Workshops (2003)
Xavier Armangué, Helder Araújo, Joaquim Salvi
A review on egomotion by means of differential epipolar geometry applied to the movement of a mobile robot. Pattern Recognit. 36 (12) (2003)
João Pedro Barreto, Helder Araújo
Paracatadioptric Camera Calibration Using Lines. ICCV (2003)
Nuno Gonçalves, Helder Araújo
Analysis and comparison of two methods for the estimation of 3D motion parameters. Robotics Auton. Syst. 45 (1) (2003)
Nuno Gonçalves, Helder Araújo
Mirror shape recovery from image curves and intrinsic parameters: Rotationally symmetric and conic mirrors. CVPR Workshops (2003)
António Paulino, Helder Araújo
Pose Estimation for Central Catadioptric Systems: An Analytical Approach. ICPR (3) (2002)
Nuno Gonçalves, Helder Araújo
Estimation of 3D Motion from Stereo Images- Differential and Discrete Formulations. ICPR (1) (2002)
João Pedro Barreto, Helder Araújo
Geometric Properties of Central Catadioptric Line Images. ECCV (4) (2002)
Xavier Armangué, Helder Araújo, Joaquim Salvi
Differential Epipolar Constraint in Mobile Robot Egomotion Estimation. ICPR (3) (2002)
Nuno Gonçalves, Helder Araújo
Estimation of 3D motion from stereo images-uncertainty analysis and experimental results. IROS (2002)
António Paulino, Jorge P. Batista, Helder Araújo
Maintaining the relative positions and orientations of multiple robots using vision. Pattern Recognit. Lett. 22 (12) (2001)
João Pedro Barreto, Helder Araújo
Issues on the Geometry of Central Catadioptric Image Formation. CVPR (2) (2001)
Helder Araújo, Jorge Dias
Intelligent Robotic Systems - SIRS'99. Robotics Auton. Syst. 35 (3-4) (2001)

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Publication Activity (10 Years)

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Helder Araújo