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Publications |
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1.
Jacinto C. Nascimento, Miguel
Barão, Jorge S. Marques, João M. Lemos, Information Geometric Algorithm for
Estimating Switching Probabilities in Space-Varying HMM, IEEE Transactions
Image Processing, Vol. 23, no 12, 5263-5273, 2014. 2.
J. C. Nascimento,
J. G. Silva, J. S. Marques, J. M. Lemos, Manifold
Learning for Object Tracking with Multiple Nonlinear Models, IEEE
Transactions on Image Processing, accepted, Vol. 23, 1593-1605, 2014. 3.
A. Portelo,
M. A. T. Figueiredo, J. M. Lemos,
J. S. Lemos, Moving Horizon Estimation of Pedestrian Interactions using Multiple
Velocity Fields, Signal, Image and Video Processing, 2014. 4.
M. V. Afonso,
J. C. Nascimento, J. S. Marques, Automatic
Estimation of Multiple Motion Fields from Video Sequences Using a Region
Matching based Approach”, IEEE Transactions on Multimedia, 1-14,
January 2014. 5. J. C. Nascimento, M. A. T. Figueiredo, J. S. Marques, "Activity recognition
using mixture of vector fields", IEEE Transactions on Image Processing,
Vol. 22, 1712-1725, May 2013. [pdf] 6. J. C. Nascimento, J. M. Lemos,
J. S. Marques, Modeling and classifying human activities from trajectories
using a class of space-varying parametric motion fields, IEEE Transactions on
Image Processing, Vol. 22, 244-254, May 2013. [pdf] 7. J. S. Marques, M. Barão, J. M. Lemos, Alignment of velocity fields for video
surveillance, Pattern Recognition Letters, Elsevier, Vol. 33, 1632-1637,
2012. (alignment of velocity
fields) [pdf] 8. J. C. Nascimento, M. A. T. Figueiredo, J. S. Marques, Trajectory Classification Using Switched Dynamical Hidden Markov
Models, IEEE Transactions on Image Processing, vol. 19, no. 5, pp.
1338-1348, 2010. (simpler switched model) [pdf] Book chapters 9.
J. S. Marques, J. C. Nascimento, C. Santiago, Robust Deformable Models for 2D
and 3D Shape Estimation, in Deformation Models, M. González, A. Mir,
J. Varona, eds., chapter, Springer, LNCVB-7, 2013. [pdf] International Conferences 10. Ana Portelo, Sandra
Pacheco, Mario A. T. Figueiredo, João M. Lemos, Jorge S. Marques,
Moving Horizon Estimation of Pedestrian Interactions Based on Multiple
Velocity Fields, International Symposium on Visual Computing, Crete, July
2013. 11.
Ricardo A. Ribeiro,
João M. Lemos,
Jorge S. Marques, A Multiple Velocity Fields Approach to the Detection of
Pedestrians Interactions using HMM and Data Association Filters,
International Symposium on Visual Computing, Crete, July 2013. 12.
A. Portelo,
R. Ribeiro, M. Figueiredo,
J. M. Lemos, J. S. Marques, A velocity field
approach to the detection of pedestrian interactions, Mediterranean
Conference on Control and Automation, Creta, June
2013 13.
Jacinto C. Nascimento,
Miguel Barão, João
M. Lemos, Jorge S. Marques, Efficient Optimization
Algorithm for Space-Variant Switching of Vector Fields, Iberian Conference on
Pattern Recognition and Image Analysis, June 2013. 14. Jacinto C. Nascimento, Jorge S. Marques, João M. Lemos, A Class
of Parametric Vector Fields for Human Activity Recognition, IEEE
International Conference on Image Processing, Orlando, October 2012. [pdf] 15. T. Simão, M. Barão,
J. S. Marques, Recursive Bayesian Identification of Nonlinear Autonomous
Systems, IEEE Mediterranean Conference on Control and Automation, Barcelona, Julho 2012. (on-line learning of the
model) [pdf] 16. M. V. Afonso, J. S. Marques, J. C. Nascimento, Automatic Estimation of Multiple Motion Fields Using Object Trajectories and Optical Flow, International Conference on Pattern Recognition Applications and Methods, February 2012. (alternative input from optical flow) [pdf] 17. P. Rosa, T. Simão, J. M. Lemos, Carlos Silvestre. Multiple-Model Adaptive Control of an Air Heating Fan using Set-Valued Observers, IEEE Mediterranean Conference on Control and Automation, Barcelona, Julho 2012. [pdf] 18. J. S. Marques, M. A. T. Figueiredo, Image
Super-segmentation: Segmentation with Multiple Labels from Shuffled
Observations, IEEE International Conference on Image Processing, Brussels,
2011. (supersegmentation) [pdf] 19.
J. C. Nascimento,
J. S. Marques, J. M. Lemos, Flexible trajectory
modeling using a mixture of parametric motion fields for video surveillance,
IEEE International Conference on Image Processing, Brussels, 2011.(parametric
models) [pdf] 20. J. S. Marques, Mário A. T. Figueiredo, Fast Estimation of Multiple Vector Fields: Application to Video Surveillance, IEEE International Symposium on Image and Signal Processing and Analysis, Dubrovnik, September 2011. (fast suboptimal learning) 21. J. S. Marques, J. M. Lemos, Mário A. T. Figueiredo,
M. Barão, J. C. Nascimento,
Trajectory Analysis Using Switched Motion Fields: a Parametric Approach,
Iberian Conference on Pattern Recognition and Image Analysis, Las Palmas,
June 2011. (parametric models) [pdf] 22. M. Barão, J. S. Marques, Offline
Bayesian Identification of Jump Markov Nonlinear Systems, IFAC World
Congress, 2011. (non-regular grids and
higher dimentsions) [pdf] 23. J. Nascimento, J. S. Marques, Mário Figueiredo, Discriminative Model Selection Using a Modified Bayesian Criterion: Application to Trajectory Modeling, IEEE International Conference on Image Processing, Brussels, 2011. (model selection) [pdf] 24. J. Nascimento, J. S.
Marques, Mário Figueiredo, J. Nascimento, J. S. Marques, Mário
Figueiredo, Discriminative model selection for object motion recognition,
IEEE International Conference on Image Processing, Hong Kong, 2010. (model
selection) [pdf] 25. M. Barão, J. S. Marques, J. M. Lemos, An Improved EM-method for the Estimation of
Transition Probabilities in Multiple Model Switching Systems, 8th IFAC
Symposium on Nonlinear Control Systems, Bolonha,
September 2010. (non-regular grids and
higher dimentsions) [pdf] 26. J. Nascimento, J. S.
Marques, Mário Figueiredo, Classification of Complex Pedestrian
Activities from Trajectories, IEEE International Conference on Image
Processing, Hong Kong, 2010. (activity recognition) [pdf] Thesis 27. S. Copeto,
Detecção de Objectos Activos em Ambientes Dinâmicos, MSc
thesis, IST, 2012. [pdf] 28. T. Simão, Multiple Model
Identification in Systems with Variable Dynamics, MSc thesis, IST, 2011. [pdf] 29. J. P. Fernandes,
Análise de Actividades Humanas: Interacção entre
Pessoas, MSc thesis, April 2011. [pdf] Previous relevant work: 30. J. C. Nascimento, Mário
A. T. Figueiredo, J. S. Marques, Trajectory
Analysis in Natural Images Using Mixtures of Vector Fields, IEEE
International Conference on Image Processing, Cairo, October 2009. [pdf] 31. J. C. Nascimento, Mário
A. T. Figueiredo, J. S. Marques, Trajectory
Modeling Using Mixtures of Vector Fields, Iberian Conference on Pattern
Recognition and Image Analysis, Springer, LNCS, June 2009. [pdf] 32. J. C. Nascimento, Mário
A. T. Figueiredo, J. S. Marques, Recognition of
Human Activities Using Space Dependent Switched Dynamical Models, IEEE
International Conference on Image Processing, 852-855, Genoa, September 2005.
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