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ORCIDHelder Araújo
Helder J. Araújo – Hélder Araújo
Person information
- affiliation: University of Coimbra, Institute for Systems and Robotics, Department of Electrical and Computer Engineering, Portugal
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2020 – today
- 2025
[j48]Gopi Krishna Erabati
, Helder Araújo:
RetSeg3D: Retention-based 3D semantic segmentation for autonomous driving. Comput. Vis. Image Underst. 250: 104231 (2025)- 2024
- [j47]Gopi Krishna Erabati, Helder Araújo:
SRFDet3D: Sparse Region Fusion based 3D Object Detection. Neurocomputing 593: 127814 (2024) - [j46]Gopi Krishna Erabati, Helder Araújo:
DeLiVoTr: Deep and light-weight voxel transformer for 3D object detection. Intell. Syst. Appl. 22: 200361 (2024) - [c72]Gopi Krishna Erabati, Helder Araújo:
DAFDeTr: Deformable Attention Fusion Based 3D Detection Transformer. ROBOVIS 2024: 293-315 - [i15]Teresa Salazar, João Gama, Helder Araújo, Pedro Henriques Abreu:
Unveiling Group-Specific Distributed Concept Drift: A Fairness Imperative in Federated Learning. CoRR abs/2402.07586 (2024) - [i14]Teresa Salazar, Helder Araújo, Alberto Cano, Pedro Henriques Abreu:
A Survey on Group Fairness in Federated Learning: Challenges, Taxonomy of Solutions and Directions for Future Research. CoRR abs/2410.03855 (2024) - 2023
- [c71]Marina Oliveira, Hélder Araújo:
Local Forward-Motion Panoramic Views for Localization and Lesion Detection for Multi-Camera Wireless Capsule Endoscopy Videos. BIOINFORMATICS 2023: 41-50 - [c70]Oscar Ferraz, Helder Araújo, Vítor Silva, Gabriel Falcão Paiva Fernandes:
Benchmarking Convolutional Neural Network Inference on Low-Power Edge Devices. ICASSP 2023: 1-5 - [c69]Teresa Salazar, Miguel Fernandes, Helder Araújo, Pedro Henriques Abreu:
FAIR-FATE: Fair Federated Learning with Momentum. ICCS (1) 2023: 524-538 - [c68]Vamshi Kodipaka, Lino Marques, Rui Cortesão, Hélder Araújo:
APH-YOLOv7t: A YOLO Attention Prediction Head for Search and Rescue with Drones. ROBOT (2) 2023: 256-268 - [c67]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: 387-399 - [c66]Gopi Krishna Erabati, Helder Araújo:
Li3DeTr: A LiDAR based 3D Detection Transformer. WACV 2023: 4239-4248 - 2022
- [j45]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): 7378 (2022) - [c65]Ignacio Cuiral-Zueco, Gonzalo López-Nicolás, Helder Araújo:
Gripper positioning for object deformation tasks. ICRA 2022: 963-969 - [i13]Teresa Salazar, Miguel Fernandes, Helder Araújo, Pedro Henriques Abreu:
FAIR-FATE: Fair Federated Learning with Momentum. CoRR abs/2209.13678 (2022) - [i12]Gopi Krishna Erabati, Helder Araújo:
MSF3DDETR: Multi-Sensor Fusion 3D Detection Transformer for Autonomous Driving. CoRR abs/2210.15316 (2022) - [i11]Gopi Krishna Erabati, Helder Araújo:
Li3DeTr: A LiDAR based 3D Detection Transformer. CoRR abs/2210.15365 (2022) - 2021
- [j44]Teresa Salazar, Miriam Seoane Santos, Helder Araújo, Pedro Henriques Abreu:
FAWOS: Fairness-Aware Oversampling Algorithm Based on Distributions of Sensitive Attributes. IEEE Access 9: 81370-81379 (2021) - [j43]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: 119533-119545 (2021) - [j42]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: 102058 (2021) - [c64]Francisco Lourenço, Helder Araújo:
Intel RealSense SR305, D415 and L515: Experimental Evaluation and Comparison of Depth Estimation. VISIGRAPP (4: VISAPP) 2021: 362-369 - [c63]Eva Curto, Helder Araújo:
3D Reconstruction of Deformable Objects from RGB-D Cameras: An Omnidirectional Inward-facing Multi-camera System. VISIGRAPP (4: VISAPP) 2021: 544-551 - 2020
- [c62]Gopi Krishna Erabati, Helder Araújo:
SL3D - Single Look 3D Object Detection based on RGB-D Images. DICTA 2020: 1-8 - [i10]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 abs/2006.16670 (2020)
2010 – 2019
- 2019
- [j41]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): 3075-3082 (2019) - [j40]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: 17-28 (2019) - [c61]Gopi Krishna Erabati, Hélder Araújo:
Dynamic Obstacle Detection in Traffic Environments. ICDSC 2019: 32:1-32:2 - [d1]Ivo Frazão, Pedro H. Abreu, Tiago Cruz, Helder Araújo, Paulo Simões:
Cyber-security Modbus ICS dataset. IEEE DataPort, 2019
- 2018
- [j39]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): 459-476 (2018) - [j38]Miriam Seoane Santos, Jastin Pompeu Soares, Pedro Henriques Abreu, Hélder Araújo, João A. M. Santos:
Cross-Validation for Imbalanced Datasets: Avoiding Overoptimistic and Overfitting Approaches [Research Frontier]. IEEE Comput. Intell. Mag. 13(4): 59-76 (2018) - [j37]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: 1861-1870 (2018) - [j36]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): 345-359 (2018) - [j35]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): 60-71 (2018) - [j34]Yizhen Lao, Omar Ait-Aider, Helder Araújo:
Robustified Structure from Motion with rolling-shutter camera using straightness constraint. Pattern Recognit. Lett. 111: 1-8 (2018) - [c60]Ivo Frazão, Pedro Henriques Abreu, Tiago Cruz, Hélder Araújo, Paulo Simões:
Denial of Service Attacks: Detecting the Frailties of Machine Learning Algorithms in the Classification Process. CRITIS 2018: 230-235 - [c59]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: 1-8 - [c58]Jastin Pompeu Soares, Miriam Seoane Santos, Pedro Henriques Abreu, Hélder Araújo, João A. M. Santos:
Exploring the Effects of Data Distribution in Missing Data Imputation. IDA 2018: 251-263 - [c57]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: 1283-1289 - [i9]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 abs/1803.01048 (2018) - 2017
- [j33]S. Jafar Hosseini, Helder Araújo:
SDP-based approach to monocular reconstruction of inextensible surfaces. IET Comput. Vis. 11(1): 43-49 (2017) - [j32]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): 399-409 (2017) - [j31]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): 442-450 (2017) - [j30]S. Jafar Hosseini, Helder Araújo:
Patch-based reconstruction of surfaces undergoing different types of deformations. Signal Image Video Process. 11(7): 1229-1236 (2017) - [c56]Miriam Seoane Santos, Jastin Pompeu Soares, Pedro Henriques Abreu, Hélder Araújo, João A. M. Santos:
Influence of Data Distribution in Missing Data Imputation. AIME 2017: 285-294 - [c55]Rui Figueiredo, Atabak Dehban, Alexandre Bernardino, José Santos-Victor, Helder Araújo:
Shape-based attention for identification and localization of cylindrical objects. ICDL-EPIROB 2017: 98-103 - [c54]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: 300-307 - [i8]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 abs/1705.05444 (2017) - [i7]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 abs/1705.06196 (2017) - [i6]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 abs/1705.06524 (2017) - [i5]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 abs/1708.06822 (2017) - [i4]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 abs/1708.09740 (2017) - [i3]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 abs/1709.03401 (2017) - [i2]Tiago J. Dias, Helder Araújo, Pedro Miraldo:
3D Reconstruction with Low Resolution, Small Baseline and High Radial Distortion Stereo Images. CoRR abs/1709.06451 (2017) - 2016
- [j29]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: 15 (2016) - [j28]Luis Perdigoto, Helder Araújo:
Estimation of mirror shape and extrinsic parameters in axial non-central catadioptric systems. Image Vis. Comput. 54: 45-59 (2016) - [c53]S. Jafar Hosseini, Helder Araújo:
3D Estimation of Extensible Surfaces Through a Local Monocular Reconstruction Technique. ACCV Workshops (2) 2016: 114-123 - [c52]Tiago J. Dias, Helder Araújo, Pedro Miraldo:
3D Reconstruction with Low Resolution, Small Baseline and High Radial Distortion Stereo Images. ICDSC 2016: 98-103 - [c51]João R. Cardoso, Pedro Miraldo, Helder Araújo:
Plücker correction problem: Analysis and improvements in efficiency. ICPR 2016: 2795-2800 - [i1]João R. Cardoso, Pedro Miraldo, Helder Araújo:
Plücker Correction Problem: Analysis and Improvements in Efficiency. CoRR abs/1602.05990 (2016) - 2015
- [j27]Pedro Miraldo, Helder Araújo:
Generalized essential matrix: Properties of the singular value decomposition. Image Vis. Comput. 34: 45-50 (2015) - [j26]Rudi Penne, Carolina Raposo, Luc Mertens, Bart Ribbens, Helder Araújo:
Investigating new calibration methods without feature detection for TOF cameras. Image Vis. Comput. 43: 50-62 (2015) - [j25]Pedro Miraldo, Helder Araújo:
Pose Estimation for Non-Central Cameras Using Planes. J. Intell. Robotic Syst. 80(3-4): 595-608 (2015) - [j24]Pedro Miraldo, Helder Araújo:
Direct Solution to the Minimal Generalized Pose. IEEE Trans. Cybern. 45(3): 418-429 (2015) - [j23]Pedro Miraldo, Helder Araújo, Nuno Gonçalves:
Pose Estimation for General Cameras Using Lines. IEEE Trans. Cybern. 45(10): 2156-2164 (2015) - 2014
- [j22]Hadi Aliakbarpour, Omar Tahri, Helder Araújo:
Visual servoing of mobile robots using non-central catadioptric cameras. Robotics Auton. Syst. 62(11): 1613-1622 (2014) - [j21]Omar Tahri, Helder Araújo, Youcef Mezouar, François Chaumette:
Efficient Iterative Pose Estimation Using an Invariant to Rotations. IEEE Trans. Cybern. 44(2): 199-207 (2014) - [c50]Leo Baudouin, Youcef Mezouar, Omar Ait-Aider, Helder Araújo:
Multi-modal Sensors Path Merging. IAS 2014: 191-201 - [c49]Pedro Miraldo, Helder Araújo:
Pose estimation for non-central cameras using planes. ICARSC 2014: 104-109 - [c48]S. Jafar Hosseini, Helder Araújo:
A ToF-Aided Approach to 3D Mesh-Based Reconstruction of Isometric Surfaces. ICPRAM (Selected Papers) 2014: 146-161 - [c47]S. Jafar Hosseini, Helder Araújo:
Structure from Motion - ToF-aided 3D Reconstruction of Isometric Surfaces. ICPRAM 2014: 544-552 - [c46]Pedro Miraldo, Helder Araújo:
A simple and robust solution to the minimal general pose estimation. ICRA 2014: 2119-2125 - [c45]Pedro Miraldo, Helder Araújo:
Planar pose estimation for general cameras using known 3D lines. IROS 2014: 4234-4240 - [c44]S. Jafar Hosseini, Helder Araújo:
3D Estimation of Isometric Surfaces Using a ToF-Based Approach. ISVC (2) 2014: 129-140 - 2013
- [j20]Luis Perdigoto, Helder Araújo:
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems. Comput. Vis. Image Underst. 117(8): 909-921 (2013) - [j19]Pedro Miraldo, Helder Araújo:
Calibration of Smooth Camera Models. IEEE Trans. Pattern Anal. Mach. Intell. 35(9): 2091-2103 (2013) - [j18]Omar Tahri, Helder Araújo, François Chaumette, Youcef Mezouar:
Robust image-based visual servoing using invariant visual information. Robotics Auton. Syst. 61(12): 1588-1600 (2013) - [c43]Omar Tahri, Helder Araújo, Youcef Mezouar, François Chaumette:
Efficient decoupled pose estimation from a set of points. IROS 2013: 1608-1613 - [c42]Hadi Aliakbarpour, Omar Tahri, Helder Araújo:
Image-based servoing of non-holonomic vehicles using non-central catadioptric cameras. RoMoCo 2013: 54-59 - 2012
- [j17]David Palma, Helder Araújo, Marília Curado:
Link quality estimation in wireless multi-hop networks using Kernel based methods. Comput. Networks 56(16): 3629-3638 (2012) - [c41]Luis Perdigoto, Helder Araújo:
Reconstruction of 3D lines from a single axial catadioptric image using cross-ratio. ICPR 2012: 857-860 - [c40]Omar Tahri, Helder Araújo:
Non-central catadioptric cameras visual servoing for mobile robots using a radial camera model. IROS 2012: 1683-1688 - 2011
- [c39]Pedro Miraldo, Helder Araújo, Joao Queiro:
Point-based calibration using a parametric representation of the general imaging model. ICCV 2011: 2304-2311 - 2010
- [j16]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): 442-457 (2010) - [c38]Fernanda da C. e C. Faria, Jorge P. Batista, Helder Araújo:
Bio-inspired Binocular Disparity with Position-Shift Receptive Field. DoCEIS 2010: 351-358 - [e14]Alpesh Ranchordas, João Madeiras Pereira, Helder Araújo, João Manuel R. S. Tavares:
Computer Vision, Imaging and Computer Graphics. Theory and Applications - International Joint Conference, VISIGRAPP 2009, Lisboa, Portugal, February 5-8, 2009. Revised Selected Papers. Communications in Computer and Information Science 68, Springer 2010, ISBN 978-3-642-11839-5 [contents]
2000 – 2009
- 2009
- [j15]Nuno Gonçalves, Helder Araújo:
Estimating parameters of noncentral catadioptric systems using bundle adjustment. Comput. Vis. Image Underst. 113(1): 11-28 (2009) - [c37]Luis Perdigoto, João Pedro Barreto, Rui Caseiro, Helder Araújo:
Active stereo tracking of multiple free-moving targets. CVPR 2009: 1494-1501 - [c36]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: 429-435 - [e13]Helder Araújo, Ana Maria Mendonça, Armando J. Pinho, M. Inés Torres:
Pattern Recognition and Image Analysis, 4th Iberian Conference, IbPRIA 2009, Póvoa de Varzim, Portugal, June 10-12, 2009, Proceedings. Lecture Notes in Computer Science 5524, Springer 2009, ISBN 978-3-642-02171-8 [contents] - [e12]Alpesh Ranchordas, Helder Araújo, João Madeiras Pereira, José Braz:
Computer Vision and Computer Graphics. Theory and Applications - International Conference, VISIGRAPP 2008, Funchal-Madeira, Portugal, January 22-25, 2008. Revised Selected Papers. Communications in Computer and Information Science 24, Springer 2009, ISBN 978-3-642-10225-7 [contents] - [e11]Alpesh Ranchordas, Helder Araújo:
VISAPP 2009 - Proceedings of the Fourth International Conference on Computer Vision Theory and Applications, Lisboa, Portugal, February 5-8, 2009 - Volume 1. INSTICC Press 2009, ISBN 978-989-8111-69-2 [contents] - [e10]Alpesh Ranchordas, Helder Araújo:
VISAPP 2009 - Proceedings of the Fourth International Conference on Computer Vision Theory and Applications, Lisboa, Portugal, February 5-8, 2009 - Volume 2. INSTICC Press 2009 [contents] - 2008
- [c35]Nuno Martins, Helder Araújo:
Calibration and Pose Estimation of a Pox-slits Camera from a Single Image. ISVC (2) 2008: 460-469 - [c34]João Xavier, Helder Araújo:
The Experimental Robotics Framework. SIMPAR 2008: 207-221 - [e9]José Braz, Alpesh Ranchordas, Helder J. Araújo, João Madeiras Pereira:
Computer Vision and Computer Graphics. Theory and Applications - International Conference VISIGRAPP 2007, Barcelona, Spain, March 8-11, 2007. Revised Selected Papers. Communications in Computer and Information Science 21, Springer 2008, ISBN 978-3-540-89681-4 [contents] - [e8]Alpesh Ranchordas, Helder Araújo:
VISAPP 2008: Proceedings of the Third International Conference on Computer Vision Theory and Applications, Funchal, Madeira, Portugal, January 22-25, 2008 - Volume 1. INSTICC - Institute for Systems and Technologies of Information, Control and Communication 2008, ISBN 978-989-8111-21-0 [contents] - [e7]Alpesh Ranchordas, Helder Araújo:
VISAPP 2008: Proceedings of the Third International Conference on Computer Vision Theory and Applications, Funchal, Madeira, Portugal, January 22-25, 2008 - Volume 2. INSTICC - Institute for Systems and Technologies of Information, Control and Communication 2008 [contents] - 2007
- [c33]Nuno Gonçalves, Helder Araújo:
Linear solution for the pose estimation of noncentral catadioptric systems. ICCV 2007: 1-7 - [e6]José Braz, Alpesh Ranchordas, Helder Araújo, Joaquim A. Jorge:
Advances in Computer Graphics and Computer Vision - International Conferences VISAPP and GRAPP 2006, Setúbal, Portugal, February 25-28, 2006, Revised Selected Papers. Communications in Computer and Information Science 4, Springer 2007, ISBN 978-3-540-75272-1 [contents] - [e5]Alpesh Ranchordas, Helder Araújo, Jordi Vitrià:
VISAPP 2007: Proceedings of the Second International Conference on Computer Vision Theory and Applications, Barcelona, Spain, March 8-11, 2007 - Volume 1. INSTICC - Institute for Systems and Technologies of Information, Control and Communication 2007, ISBN 978-972-8865-73-3 [contents] - [e4]Alpesh Ranchordas, Helder Araújo, Jordi Vitrià:
VISAPP 2007: Proceedings of the Second International Conference on Computer Vision Theory and Applications, Barcelona, Spain, March 8-11, 2007 - Volume 2. INSTICC - Institute for Systems and Technologies of Information, Control and Communication 2007, ISBN 978-972-8865-74-0 [contents] - [e3]Alpesh Ranchordas, Helder Araújo, Jordi Vitrià:
VISAPP 2007: Proceedings of the Second International Conference on Computer Vision Theory and Applications, Barcelona, Spain, March 8-11, 2007 - Volume Special Sessions. INSTICC - Institute for Systems and Technologies of Information, Control and Communication 2007, ISBN 978-972-8865-75-7 [contents] - 2006
- [j14]João Pedro Barreto, Helder Araújo:
Fitting conics to paracatadioptric projections of lines. Comput. Vis. Image Underst. 101(3): 151-165 (2006) - [c32]Helder Araújo:
Active vision systems and catadioptric vision systems for robotic applications. CompIMAGE 2006: 3-8 - [e2]Alpesh Ranchordas, Helder Araújo, Bruno Encarnação:
VISAPP 2006: Proceedings of the First International Conference on Computer Vision Theory and Applications, Volume 1, Setúbal, Portugal, February 25-28, 2006. INSTICC - Institute for Systems and Technologies of Information, Control and Communication 2006, ISBN 972-8865-40-6 [contents] - 2005
- [j13]Qian Yu, Helder Araújo, Hong Wang:
A Stereovision Method for Obstacle Detection and Tracking in Non-Flat Urban Environments. Auton. Robots 19(2): 141-157 (2005) - [j12]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): 1327-1333 (2005) - [c31]Nuno Martins, Helder Araújo:
A Calibration Algorithm for POX-Slits Camera. IbPRIA (1) 2005: 168-175 - 2004
- [j11]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): 23-47 (2004) - [c30]Nuno Gonçalves, Helder Araújo:
Projection Model, 3D Reconstruction and Rigid Motion Estimation from Non-Central Catadioptric Images. 3DPVT 2004: 325-332 - [c29]Nuno Gonçalves, Helder Araújo:
Rigid Motion Estimation from Non-Central Catadioptric Images. ICPR (4) 2004: 268-271 - [e1]Helder Araújo, Alves Vieira, José Braz, Bruno Encarnação, Marina Carvalho:
ICINCO 2004, Proceedings of the First International Conference on Informatics in Control, Automation and Robotics, Setúbal, Portugal, August 25-28, 2004. INSTICC Press 2004, ISBN 972-8865-12-0 [contents] - 2003
- [j10]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): 2927-2944 (2003) - [j9]Nuno Gonçalves, Helder Araújo:
Analysis and comparison of two methods for the estimation of 3D motion parameters. Robotics Auton. Syst. 45(1): 23-49 (2003) - [c28]Nuno Gonçalves, Helder Araújo:
Mirror shape recovery from image curves and intrinsic parameters: Rotationally symmetric and conic mirrors. CVPR Workshops 2003: 69 - [c27]João Pedro Barreto, Helder Araújo:
Direct Least Square Fitting of Paracatadioptric Line Images. CVPR Workshops 2003: 78 - [c26]João Pedro Barreto, Helder Araújo:
Paracatadioptric Camera Calibration Using Lines. ICCV 2003: 1359-1365 - 2002
- [c25]João Pedro Barreto, Helder Araújo:
Geometric Properties of Central Catadioptric Line Images. ECCV (4) 2002: 237-251 - [c24]Nuno Gonçalves, Helder Araújo:
Estimation of 3D Motion from Stereo Images- Differential and Discrete Formulations. ICPR (1) 2002: 335-338 - [c23]Xavier Armangué, Helder Araújo, Joaquim Salvi:
Differential Epipolar Constraint in Mobile Robot Egomotion Estimation. ICPR (3) 2002: 599-602 - [c22]António Paulino, Helder Araújo:
Pose Estimation for Central Catadioptric Systems: An Analytical Approach. ICPR (3) 2002: 696-699 - [c21]Nuno Gonçalves, Helder Araújo:
Estimation of 3D motion from stereo images-uncertainty analysis and experimental results. IROS 2002: 7-12 - 2001
- [j8]António Paulino, Jorge P. Batista, Helder Araújo:
Maintaining the relative positions and orientations of multiple robots using vision. Pattern Recognit. Lett. 22(12): 1331-1335 (2001) - [j7]Helder Araújo, Jorge Dias:
Intelligent Robotic Systems - SIRS'99. Robotics Auton. Syst. 35(3-4): 127-130 (2001) - [j6]Paulo Peixoto, Jorge P. Batista, Helder Araújo:
Real-time human activity monitoring exploring multiple vision sensors. Robotics Auton. Syst. 35(3-4): 221-228 (2001) - [c20]João Pedro Barreto, Helder Araújo:
Issues on the Geometry of Central Catadioptric Image Formation. CVPR (2) 2001: 422-427 - 2000
- [j5]Paulo Peixoto, Jorge P. Batista, Helder Araújo:
Integration of information from several vision systems for a common task of surveillance. Robotics Auton. Syst. 31(1-2): 99-108 (2000) - [c19]Jorge Batista, Paulo Peixoto, Helder Araújo:
Binocular Tracking and Accommodation Controlled by Retinal Motion Flow. ICPR 2000: 1171-1174 - [c18]Paulo Peixoto, João Gonçalves, Hugo Antunes, Jorge Batista, Helder Araújo:
A Surveillance System Integrating Visual Telepresence. ICPR 2000: 4098-4101 - [c17]João Pedro Barreto, Jorge Batista, Helder Araújo:
Model Predictive Control to Improve Visual Control of Motion: Applications in Active Tracking of Moving Targets. ICPR 2000: 4732-4735 - [c16]Jorge Batista, Paulo Peixoto, Helder Araújo:
A Focusing-by-Vergence System Controlled by Retinal Motion Disparity. ICRA 2000: 3209-3214
1990 – 1999
- 1999
- [j4]Jorge P. Batista, Helder Araújo, Anibal T. de Almeida:
Iterative multistep explicit camera calibration. IEEE Trans. Robotics Autom. 15(5): 897-917 (1999) - [c15]João Pedro Barreto, Paulo Peixoto, Jorge Batista, Helder Araújo:
Improving 3D Active Visual Tracking. ICVS 1999: 412-431 - [c14]João Pedro Barreto, Paulo Peixoto, Jorge Batista, Helder Araújo:
Tracking multiple objects in 3D. IROS 1999: 210-215 - [c13]Paulo Peixoto, Jorge Batista, Helder Araújo, Anibal T. de Almeida:
Combination of Several Vision Sensors for Interpretation of Human Actions. ISER 1999: 519-528 - 1998
- [j3]Helder Araújo, Rodrigo L. Carceroni, Christopher M. Brown:
A Fully Projective Formulation to Improve the Accuracy of Lowe's Pose-Estimation Algorithm. Comput. Vis. Image Underst. 70(2): 227-238 (1998) - [j2]Jorge Dias, Carlos Paredes, Inácio Fonseca, Helder Araújo, Jorge P. Batista, Anibal T. de Almeida:
Simulating pursuit with machine experiments with robots and artificial vision. IEEE Trans. Robotics Autom. 14(1): 1-18 (1998) - [c12]Jorge Batista, Helder Araújo, Anibal T. de Almeida:
Iterative Multi-Step Explicit Camera Calibration. ICCV 1998: 709-714 - [c11]Paulo Peixoto, Jorge Batista, Helder Araújo:
A surveillance system combining peripheral and foveated motion tracking. ICPR 1998: 574-577 - [c10]João Pedro Barreto, Paulo Peixoto, Jorge Batista, Helder Araújo:
Control performance issues in a binocular active vision system. IROS 1998: 886-891 - 1997
- [j1]Jorge Dias, Helder Araújo, Carlos Paredes, Jorge Batista:
Optical Normal Flow Estimation on Log-polar Images. A Solution for Real-Time Binocular Vision. Real Time Imaging 3(3): 213-228 (1997) - [c9]Jorge Batista, Paulo Peixoto, Helder Araújo:
Real-time visual behaviors with a binocular active vision system. ICRA 1997: 3391-3396 - [c8]Jorge Batista, Paulo Peixoto, Helder Araújo:
Real-time vergence and binocular gaze control. IROS 1997: 1348-1354 - 1996
- [c7]Jorge Batista, Helder Araújo, Anibal T. de Almeida:
Pose view stability analysis for camera look angles computation. ICPR 1996: 171-175 - [c6]Helder Araújo, Jorge Batista, Paulo Peixoto, Jorge Dias:
Pursuit control in a binocular active vision system using optical flow. ICPR 1996: 313-317 - 1995
- [c5]Jorge Dias, Carlos Paredes, Inácio Fonseca, Helder Araújo, Jorge P. Batista, Anibal T. de Almeida:
Simulating Pursuit with Machines Experiments with Robots and Artificial Vision. ICRA 1995: 472-477 - [c4]Paulo Menezes, Jorge Dias, Helder Araújo, Anibal T. de Almeida:
Low Cost Sensor Based Obstacle Deteciton and Description: Experiments with Mobile Robots using Grid Representation. ISER 1995: 231-237 - 1993
- [c3]Jorge Batista, Jorge Dias, Helder Araújo, Anibal Traça-de-Almeida:
Monoplanar Camera Calibration. BMVC 1993: 1-10 - 1991
- [c2]Jorge Dias, Anibal T. de Almeida, Helder Araújo:
Depth recovery using active focus in robotics [vision]. IROS 1991: 249-255 - [c1]Jorge Dias, Anibal T. de Almeida, Helder Araújo, Jorge Batista:
Improving camera calibration by using multiple frames in hand-eye robotic systems. IROS 1991: 285-291
1980 – 1989
- 1989
- [b1]Helder Araújo:
Metodologias para a análise de texturas baseadas no conceito de memória associativa. University of Coimbra, Portugal, 1989
Coauthor Index
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