Publications listed by year
Publications listed by type
C. Raposo and J. P. Barreto, “πMatch: Monocular vSLAM and Piecewise Planar Reconstruction using Fast Plane Correspondences,” ECCV'2016: European Conference in Computer Vision, Amsterdam, October 2016 (pdf).
C. Raposo and J. P. Barreto, “Theory and Practice of Structure-from-Motion using Affine Correspondences,” CVPR'2016: IEEE Int. Conf. on Computer Vision and Pattern Recognition, Las Vegas, June 2016 (pdf) (spotlight presentation).
R. Ralha, G. Falcao, J. Amaro, V. Mota, M. Antunes, J. Barreto, and U. Nunes, “Parallel refinement of slanted 3D reconstruction using dense stereo induced from symmetry,” Journal of Real-Time Image Processing, 2016.
M. Antunes, J. P. Barreto, and U. Nunes, “Piecewise-planar reconstruction using two views,” Image and Vision Computing, vol. 46, pp. 47–63, 2016. (pdf)
M. Lourenco, D. Stoyanov, and J. P. Barreto, "Keypoint Detection, Tracking and Matching for Medical Endoscopy: Evaluating the Impact of Radial Distortion in Structure-from-Motion Accuracy", in CARS2015: Computer Assisted Radiology and Surgery, Barcelona, June 2015. (pdf)
P. Rodrigues and J. P. Barreto, “Single-Image Estimation of the Camera Response Function in Near-Lighting,” IEEE Int. Conf. Computer Vision and Pattern Recognition, June 2015 (pdf)
T. Matias, F. Souza, R. Araujo, N. Gonçalves, and J. P. Barreto, “On-line sequential extreme learning machine based on recursive partial least squares,” Journal of Process Control, vol. 27, pp. 15–21, Mar. 2015.
N. Gonçalves, D. Roxo, J. P. Barreto, and P. Rodrigues, "Perspective shape from shading for wide-FOV near-lighting endoscopes", Neurocomputing, Vol. 150 pp 136-146, January 2015. (pdf)
C. Raposo, M. Antunes, and J. P. Barreto, "Piecewise-Planar StereoScan: Structure and Motion from Plane Primitives", European Conference in Computer Vision, Zurich, September 2014 (acceptance ratio: 25%) (pdf) (video)
M. Lourenco, J. P. Barreto, F. Fonseca, R. Duarte, and J. Correia-Pinto, "Continuous Zoom Calibration by Tracking Salient Points in Endoscopic Video," MICCAI' 2014: Medical Imaging Computing and Computer Assisted Intervention, Boston, September 2014. (acceptance ratio oral: 10%) (pdf)
M. Lourenco, D. Stoyanov, and J. P. Barreto, "Visual Odometry in Stereo Endoscopy by using PEaRL to handle Partial Scene Deformation," Int. Workshop in Augmented Environments for Computer Assisted Intervention (in conjunction with MICCAI'2014), Boston, September 2014. (pdf)(video)
Michel Antunes and Joao P. Barreto, "SymStereo: Stereo Matching using Induced Symmetry", International Journal of Computer Vision, May, 2014. (author version pdf)
C. Raposo, C. H. Antunes, and J. P. Barreto, "Automatic Clustering using a Genetic Algorithm with New Solution Encoding and Operators," International Conference in Computational Science and its Applications, Braga, Portugal, June 2014. (pdf)
V. Mota, G. Falcao, M. Antunes, J. P. Barreto, and U. Nunes, "Using the GPU for fast symmetry-based dense stereo matching in high resolution images", ICASSP'2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, Florence May 2014. (pdf)
R. Melo, M. Antunes, J. P. Barreto, G. Falcao, and N. Goncalves, "Unsupervised intrinsic calibration from a single frame using a 'plumb-line' approach," IEEE International Conference in Computer Vision, Sydney, December, 2013.(acceptance ratio: 27%) (pdf)
S. F. Silva, I. Otel, S. Gouveia, L. Gomes, L. Negrao, M. J. Quadro, N. Goncalves, J. P. Barreto, and A. M. Morgado, " Corneal Nerve Morphometry for Diabetic Peripheral Neuropathy Assessment, " The International Conference on Health Informatics, Algarve, November 2013.
Rui Melo and Joao P. Barreto, " Camera Calibration and Real-time Image Distortion Correction in Medical Endoscopy Using Exchangeable Optics," 3rd Joint Workshop on New Technologies for Computer/Robot Assisted Surgery, Verona, September 2013.
Francisco Vasconcelos and Joao P. Barreto, " Towards a minimal solution for the relative pose between axial cameras," British Machine Vision Conference, Bristol, September 2013.(acceptance ratio: 34%) (pdf)
C. Raposo, M. Lourenco, M. Antunes, and J. P. Barreto, "Plane-based Odometry using an RGB-D Camera," British Machine Vision Conference, Bristol, September 2013. (acceptance ratio: 34%) (pdf) (code: Matlab Implementation)
Michel Antunes and Joao P. Barreto, "A Global Approach for the Detection of Vanishing Points and Mutually Orthogonal Vanishing Directions," IEEE Int Conf in Computer Vision and Pattern Recognition, Portland, June 2013.(acceptance ratio: 25%) (pdf)
C. Raposo, J. P. Barreto, and U. Nunes, "Fast and Accurate Calibration of a KinectSensor," International Conference on 3D Vision, Seattle, June 2013. (pdf) (code: EasyKinCal toolbox)
J. Andrade, G. Falcao, V. Silva, J. P. Barreto, N. Goncalves, and V. Savin, "Near-LSPA Performance at MSA Complexity " IEEE Int. Conf. on Communications. Budapest, May 2013.(pdf)
D. Roxo, N. Goncalves, and J. P. Barreto, "Perspective Shape from Shading forWide-FOV Near-Lighting Endoscopes," Iberian Conference in Pattern Recognition and Image Analysis, Funchal, May 2013. (pdf)
Michel Antunes and Joao P. Barreto, "Efficient Stereo Matching using Histogram Aggregation with Multiple Slant Hypothesis," Iberian Conference in Pattern Recognition and Image Analysis, Funchal, May 2013. (pdf)
A. Malti and J. P. Barreto, " Hand-eye and radial distortion calibration for rigid endoscopes ", Int Journal of Medical Robotics and Computer Assisted Surgery, December 2013.(pdf)
R. Melo, G. Falcao, and J. P. Barreto, "Real-time HD image distortion correction in heterogeneous parallel computing systems using efficient memory access patterns," Journal of Real-Time Image Processing, December 2012.
Francisco Vasconcelos, Joao P. Barreto, and Urbano Nunes. " A Minimal Solution for the Extrinsic Calibration of a Camera and a Laser-Rangefinder.", IEEE Trans. in Pattern Analysis and Machine Intelligence. November 2012. (pdf) (code: LaserCamCalib toolbox)
Francisco Vasconcelos, Joao P. Barreto, and Edmond Boyer " A minimal solution for camera calibration using independent pairwise correspondences ". European Conference on Computer Vision. Florence, October 2012. (acceptance ratio: around 25%) (pdf)
Miguel Lourenco and Joao P. Barreto " Tracking feature points in uncalibrated images with radial distortion". European Conference on Computer Vision. Florence, October 2012. (acceptance ratio: around 25%) (pdf)
M. Antunes, J. P. Barreto, C. Premebida and U. Antunes. "Can Stereo Vision Replace Laser-Rangefinder?". IEEE Int. Conf. in Intelligent Robots and Systems Algarve, Portugal, October 2012. (pdf)
S. Couceiro, J. P. Barreto, P. Figueiredo and P. Freire. "Description and Classification of Confocal Endomicroscopic Images for the Automatic Diagnosis of Inflammatory Bowel Disease". MICCAi Workshop in Machine Learning for Medical Imaging. Nice, October 2012. (oral) (pdf)
Miguel Lourenco, Joao P. Barreto, and Francisco Vasconcelos. "sRD-SIFT: Keypoint Detection and Matching in Images With Radial Distortion.", IEEE Trans. in Robotics. 2012. (pdf) (code: sRD-SIFT)
Miguel Lourenco, Vitor Pedro, and Joao P. Barreto. "Localization in indoor environments by querying omnidirectional visual maps using perspective images". IEEE Int. Conf. in Robotics and Automation Minneapolis, May 2012. (pdf)
Michel Antunes and Joao P. Barreto. "Stereo Estimation of Depth along Virtual Cut Planes". CVVT'2011 Computer Vision in Vehicle Technology: from Earth to Mars (in conjuction with ICCV) Barcelona, November 2011. (pdf)
M. Antunes, J. P. Barreto, and X. Zabulis. "Plane Surface Detection and Reconstruction using Induced Stereo Symmetry". British Machine Vision Conference Dundee, August 2011. (acceptance ratio: around 32%) (pdf)
J. P. Barreto, R. Melo, M. Antunes, M. Lourenco, and F. Vasconcelos. "ArthroNav: Computer Assisted Navigation System in Orthopedic Surgery using Endoscopic Images". 1st Portuguese Conference in Biomedical Engineering Lisbon, March 2011. (pdf)
F. Vasconcelos, C. H. Antunes, and J. P. Barreto "Adaptive and Hybrid Genetic Approaches for Estimating the Camera Motion from Image Point Correspondences.". GECCO'2011: ACM Conf. in Genetic and Evolutionary Computing Conference. Dublin, July 2011. (pdf)
L. Puig, Y. Bastanlar, P Sturm, J Guerrero, and J. P. Barreto. "Calibration of Central Catadioptric Cameras Using a DLT-Like Approach.", Int. Journal of Computer Vision, 93(1), pp. 442--457. May, 2011.
Peter Sturm, Srikumar Ramalingam, Jean-Philippe Tardif, Simone Gasparini, and Joao Barreto. ''Camera Models and Fundamental Concepts Used in Geometric Computer Vision''. Foundations and Trends(R) in Computer Graphics and Vision. NOW Publisher, 2011. (pdf)
Rui Rodrigues, Joao P. Barreto, and Urbano Nunes. "Camera Pose Estimation uisng Images of Planar Mirror Reflections" European Conference on Computer Vision. Heraklion, September 2010. (acceptance ratio: around 25%) (pdf) (code: Matlab Implementation)
Joao P. Barreto, Luis Perdigoto, Rui Caseiro, and Helder Araujo. "Active Stereo Tracking of N<3 Targets Using Line Scan Cameras", IEEE Trans. on Robotics, 26(3), pp. 442--457. June, 2010. (pdf)
Miguel Lourenco, Joao P. Barreto, and Abed Matly. "Feature Detection and Matching in Images with Radial Distortion ". IEEE Int. Conf. on Robotics and Automation. Anchorage, May 2010. (finalist of the Best Student Paper Award) (pdf)
Abed Malti and Joao P. Barreto. "Robust Hand-Eye Calibration for
Computer Aided Medical Endsocopy ". IEEE Int. Conf. on
Robotics and Automation. Anchorage, May 2010. (pdf)
S. Gasparini, P. Sturm, and J. P. Barreto. "Plane-based Calibration of Central Catadiotpric Cameras". IEEE Int. Conf. on Computer Vision. Kyoto, September 2009. (acceptance ratio: around 20%)
L. Perdigoto, J. P. Barreto, R. Caseiro and H. Araujo. "Active Stereo Tracking of Multiple Free Moving Targets". IEEE Int. Conf. on Computer Vision and Pattern Recognition. Miami, June 2009. (acceptance ratio: 26.1%) (pdf) (video)
J. P. Barreto, J. M. Santos, P. Menezes and F. Fonseca. "Ray-Based Calibration of Medical Endoscopes". Int. Work. on Omnidirectional Vision, Camera Networks and Non-Classical Cameras.. Marseille, October 2008. (pdf)
Y. Bastanlar, L. Puig, P. Sturm, J. J. Guerrero and J. P. Barreto. "DLT-like Calibration of Central Catadioptric Cameras". Int. Work. on Omnidirectional Vision, Camera Networks and Non-Classical Cameras.. Marseille, October 2008.
Joao P. Barreto. "Lifted Fundamental Matrices for Mixtures of Central Systems". In RobotMat 2007 - Workshop on Robotics and Mathematics. Coimbra, Portugal, September 2007.
Joao P. Barreto, Rahul Swaminathan and Jose Roquette. "Non Parametric Distorion Correction in Endoscopic Medical Images". 3DTV-CON The True Vision, Capture, Transmission and Display of 3D Video. Kos, Greece, May 2007. (pdf)
Joao P. Barreto. "A Unifying Geometric Representation for Central Projection Systems", Computer Vision and Image Understanding, 103(3), pp. 207--217. September, 2006. (pdf)
Joao P. Barreto and Kostas Daniilidis. ''Epipolar Geometry of Central Projection Systems using Veronese Maps''. IEEE Int. Conf. on Computer Vision and Pattern Recognition. New York, June 2006. (acceptance ratio: 28%) (pdf)
Joao P. Barreto and Helder Araujo. ''Fitting Conics to Paracatadioptric Projection of Lines'', Computer Vision and Image Understanding, 101(3), pp. 151--165. March, 2006. (pdf) (code)
Joao P. Barreto and Kostas Daniilidis. ''Fundamental Matrix for Cameras with Radial Distortion''. IEEE Int. Conf. on Computer Vision. Beijing, October 2005. (acceptance ratio: 20%) (pdf)
Joao P. Barreto. ''Unifying Image Plane Liftings for Central Catadioptric and Dioptric Cameras''. Imaging Beyond the Pin-hole. K Daniilidis and A. Leonardis (Ed.). Kluwer Academic Publisher, 2005. (pdf)
Joao P. Barreto and Helder Araujo. ''Geometric Properties of
Central Catadioptric Line Images and Their Application in
Calibration''. IEEE Trans. On Pattern Analysis and Machine
Intelligence, 27(8), pp. 1237--1333. August 2005. (pdf)
(code:
CatPack toolbox)
Joao P. Barreto and Kostas Daniilidis. ''Unifying Image Plane Liftings for Central Catadioptric and Dioptric Cameras''. Int. Work. on Omnidirectional Vision, Camera Networks and Non-Classical Cameras. Prague, May 2004. (pdf)
Joao P. Barreto and Kostas Daniilidis. ''Wide Area Multiple
Camera Calibration and Estimation of Radial Distortion''.
Int. Work. on Omnidirectional Vision, Camera Networks and
Non-Classical Cameras. Prague, May 2004. (pdf)
(code:
EasyCal toolbox)
Joao P. Barreto and Helder Araujo. "General Framework for Selecting World Coordinate Systems in Perspective and Catadioptric Imaging Applications''. International Journal on Computer Vision, 57(1). April 2004. (pdf)
Joao P. Barreto and Helder Araujo. ''Paracatadioptric Camera Calibration Using Lines''. IEEE Int. Conf. on Computer Vision. Nice, October 2003. (acceptance ratio: 20.6%) (pdf) (code: CatPack toolbox)
Joao P. Barreto and Helder Araujo. ''Direct Least Square Fitting of Paracatadioptric Line Images''. Int. Work. on Omnidirectional Vision, Camera Networks and Non-Classical Cameras. Madison, Wisconsin, June 2003. (pdf)
Joao P. Barreto, F. Martin and R. Horaud. ''Visual Servoing/Tracking Using Central Catadioptric Images''. Experimental Robotics VIII. B. Siciliano and P.Dario (Ed). Springer Verlag, 2003 (pdf)
Joao P. Barreto and Helder Araujo. ''Geometric Properties of Central Catadioptric Line Images''. European Conf. on Computer Vision. Copenhagen, May 2002. (acceptance ratio: 37.7%) (pdf)
Joao P. Barreto, Jorge Batista, Paulo Peixoto and Helder Araujo. "Integrating Vision and Control to Achieve High Perfomance Active Tracking", Technical Report TR-BAR-0202, ISR/DEEC - U. of Coimbra, February, 2002 (pdf)
Joao P. Barreto and Helder Araujo. ''Issues on the Geometry of Central Catadioptric Imaging''. IEEE Int. Conf. on Computer Vision and Pattern Recognition. Hawaii, USA, December 2001. (acceptance ratio: 29.1%) (pdf)
S. Chroust, J. P. Barreto, H. Araujo and M. Vincze. ''Comparison of Control Structures for Visual Servoing''. IEEE Int. Conf. on Advanced Robotics. Budapest, August 2001. (pdf)
Joao P. Barreto, "Relatorio de uma Aula Pratica de Visao por Computador Sobre Geometria Epipolar", Universidade de Coimbra - Novembro de 2000. (pdf)
J. P. Barreto, J. Batista and H. Araujo. ''Model Predictive Control to Improve Visual Control of Motion: Applications in Active Tracking of Moving Targets''. IEEE Int. Conf. on Pattern Recognition. Barcelona, September 2000 (pdf)
J. P. Barreto, P. Peixoto, J. Batista and H. Araujo. ''Evaluation of the Robustness of Visual Behaviors through Performance Characterization''. Robust Vision for Robust Vision Based Control of Motion (Chapter 12).M. Vincze and G. Hager (Ed). IEEE Press, 2000 (pdf)
J. P. Barreto, P. Peixoto, J. Batista and H. Araujo. ''Mathematical Analysis for Visual Tracking Assuming Perspective Projection''. Int. Symposium on Intelligent Robots and Systems. Reading, July 2000 (pdf)
J. P. Barreto, J. Batista and H. Araujo. ''Solutions for Visual Control of Motion. Active Tracking Applications''. IEEE Mediterranean Conference on Control and Automation. Patra, Greece, July 2000 (pdf)
J. P. Barreto, J. Batista and H. Araujo. ''Control Issues to Improve Visual Control of Motion: Application in Active Tracking of Moving Targets'', 11th Portuguese Conference on Pattern Recognition, Porto 2000.
J. P. Barreto, P. Peixoto, J. Batista and H. Araujo. ''Tracking Multiple Targets in 3D''. IEEE Int. Conf. on Intelligent Robots and Systems. Korea, October 1999 (pdf)
J. P. Barreto, P. Peixoto, J. Batista and H. Araujo. ''Improving 3D Active Visual Tracking''. Computer Vision Systems. H. Christensen, Henrik I. (Ed). Lecture Notes in Computer Science, Vol. 1542, Springer Verlag, 1999. (pdf)
J. P. Barreto, P. Peixoto, J. Batista and H. Araujo. ''Control Performance Issues in a Binocular Active Vision System''. IEEE Int. Conf. on Intelligent Robots and Systems. Victoria, Canada, October 1998. (pdf)
J. P. Barreto, P. Peixoto, J. Batista and H. Araujo. ''Performance Characterization of Visual Behaviors in Active Vision Systems''. Int. Symposium on Intelligent Robots and Systems. Edinburgh, July 1998. (pdf)
J. P. Barreto, A. Trigo, P. Menezes, J. Dias and A. T. de Almeida. ''FBD - Free Body Diagram Method. Kinematic and Dynamic Modeling of a Six Legged Robot''. IEEE Int. Work. on Advanced Motion Control. Coimbra, Portugal. July 1998 (pdf)