An up-to-date list of publications can be found at: Google Scholar Profile
For the pdfs of most of my recent publications, you can visit my Queen Mary University publications webpage
Journals
Y Tao, Z Ling, I Patras, “Universal Foreground Segmentation Based on Deep Feature Fusion Network for Multi-Scene Videos”, IEEE Access 7, 158326-158337, 2019
M Bishay, P Palasek, S Priebe, I Patras, “SchiNet: Automatic Estimation of Symptoms of Schizophrenia from Facial Behaviour Analysis”, IEEE Transactions on Affective Computing, 2019
Y Jang, H Gunes, I Patras, “Registration-free Face-SSD: Single shot analysis of smiles, facial attributes, and affect in the wild”, Computer Vision and Image Understanding, 2019
G Kordopatis-Zilos, S Papadopoulos, I Patras, I Kompatsiaris, “FIVR: Fine-grained Incident Video Retrieval”, IEEE Transactions on Multimedia, 2019
Wenxuan Mou, Hatice Gunes and Ioannis Patras, “Alone vs in-a-group: A Multi-modal Framework for Automatic Affect Recognition”, ACM Transactions on Multimedia Computing, Communications and Applications, 2019
Wenxuan Mou, Christos Tzelepis, Hatice Gunes, Vassilis Mezaris and Ioannis Patras, “A Deep Generic to Specific Recognition Model for Group Membership Analysis using Non-verbal Cues”, Image and Vision Computing, 2018
Juan Abdon Miranda-Correa, Mojtaba Khomami Abadi, Nicu Sebe, and Ioannis Patras “Amigos: A Database of Neuro-physiological Signals for Affect, Personality and Mood Research for Individuals and Groups”, IEEE Trans. Affective Computing, 2018
Foteini Markatopoulou, Vasileios Mezaris, Senior Member, IEEE, and Ioannis Patras “Implicit and Explicit Concept Relations in Deep Neural Networks for Multi-Label Video/Image Annotation”, IEEE Trans. Circuits and Systems for Video Technology, 2018
C. Tzelepis, V. Mezaris, I. Patras, "Linear Maximum Margin Classifier for Learning from Uncertain Data", IEEE Transactions on Pattern Analysis and Machine Intelligence, 2018
S Vrochidis, I Patras, I Kompatsiaris, Gaze movement-driven random forests for query clustering in automatic video annotation, Multimedia Tools and Applications 76 (2), 2861-2889, 2017
Daria Stefic, Ioannis Patras, “Action recognition using saliency learned from recorded human gaze”, Image and Vision Computing, 2016.
F. Markatopoulou, V. Mezaris, N. Pittaras, I. Patras, ”Local Features and a Two-layer Stacking Architecture for Semantic Concept Detection in Video”, in IEEE Transactions on Emerging Topics in Computing, 2016.
Christos Tzelepis, Damianos Galanopoulos, Vasileios Mezaris, Ioannis Patras, Learning to detect video events from zero or very few video examples, Image and Vision Computing, 2016 (accepted)
Heng Yang, X. Jia, I. Patras and K.P. Chan, ”Random subspace supervised descent method in computer vision”, IEEE Signal Processing Letters, Volume 22, Issue: 10, 2015.
Mojtaba Khomami Abadi, Ramanathan Subramanian, Seyed Mostafa Kia, Paolo Avesani, Ioannis Patras, Nicu Sebe,“DECAF: MEG-based Multimodal Database for Decoding Affective Physiological Responses”. IEEE Trans. Affective Computing, p. 209-222, vol. 6, n. 3, 2015.
H. Yang, X. He, X. Jia and I. Patras, “Robust face alignment under occlusion via regional predictive power estimation”. IEEE Trans. Image Processing, Volume: 24, Issue: 8, 2015. https://doi.org/10.1109/TIP.2015.2421438
Heng Yang and Ioannis Patras, "Fine-tuning regression forests votes for object alignment in the wild.". IEEE Trans. Image Processing, Volume: 24, Issue: 2, 2015. https://doi.org/10.1109/TIP.2014.2383325
H. Yang and I. Patras, “Privileged Information-based Conditional Regression Forest for Facial Feature Detection”, IEEE Trans. Circuits and Systems for Video Technology, Volume: 25, Issue: 9, 2015.
H. Yang, C. Zou and I. Patras, “Face sketch landmarks localization in the wild.”. IEEE Signal Processing Letters, 21(11): 1321-1325 Nov. 2014.
H. Yang, C. Zou and I. Patras, “Cascade of forests for face alignment”. IET Computer Vision, July 2014.
Kaymak, S., Patras, I.: Multimodal random forest based tensor regression. IET Computer Vision, 2014
O. Rudovic, M. Pantic and I. Patras,“Coupled Gaussian Processes for Pose-Invariant Facial Expression Recognition”. IEEE Trans. Pattern Analysis and Machine Intelligence, 35(6):1357-1369 Jun 2013.
Sander Koelstra, Ioannis Patras, "Fusion of facial expressions and EEG for implicit affective tagging" . Image and Vision Computing, Vol. 31, Issue 2, pp. 164-174, Feb 2012.
S. Nikolopoulos, S. Zafeiriou, I. Patras and Y. Kompatsiaris, “High Order pLSA for Indexing Tagged Images”, Signal Processing Elsevier, Special Issue on Indexing of Large-Scale Multimedia Signals, DOI: 10.1016/j.sigpro.2012.08.004
Irene Kotsia, Weiwei Guo, Ioannis Patras. "Higher rank Support Tensor Machines for visual recognition". Pattern Recognition 45(12): 4192-4203, 2012
B.G. Vijay Kumar, Irene Kotsia, Ioannis Patras, “Max-margin Non-negative Matrix Factorization”, in Image and Vision Computing, Volume 30, Issues 4–5, May 2012, Pages 279–291, http://dx.doi.org/10.1016/j.imavis.2012.02.010
Sander Koelstra, Christian Muhl, Mohammad Soleymani, Jong-Seok Lee, Ashkan Yazdani, Touradj Ebrahimi, Thierry Pun, Anton Nijholt and Ioannis Patras, "DEAP: A Database for Emotion Analysis using Physiological Signals" , Special Issue on Naturalistic Affect Resources for System Building and Evaluation of the IEEE Trans. on Affective Computing. Volume: 3 , Issue: 1, pp 18-31, 2012
E. Chatzilari, S. Nikolopoulos, I. Patras, I. Kompatsiaris, “Leveraging social media for scalable object detection”, in Pattern Recognition, 45 (2012), pp. Pattern Recognition, vol. 45, no 8, pp. 2962–2979, Aug. 2012
Farid Oveisi, Shahrzad Oveisi, Abbas Erfanian and Ioannis Patras, "Tree-Structured Feature Extraction Using Mutual Information", in IEEE Trans. on Neural Networks and Learning Systems, pp. 127-137, Jan. 2012. bibtex
Weiwei Guo, Irene Kotsia and Ioannis Patras, "Tensor Learning for Regression", in IEEE Trans. on Image Processing, pp. 816-827, Feb. 2012. bibtex, code
S. Nikolopoulos, G. Th. Papadopoulos, I. Kompatsiaris and I. Patras “ Evidence driven image interpretation using ontologies and bayesian networks”. IEEE Trans. Systems, Man, and Cybernetics, Part B, vol.41. no. 5, pp 1366 - 1381, 2011. ) .
S. Vrochidis, I. Kompatsiaris and I. Patras, “Utilizing Implicit User Feedback to Improve Interactive Video Retrieval”. In Advances in Multimedia, Hindawi, 2011
A. Oikonomopoulos, I. Patras and M. Pantic, "Spatiotemporal Localization and Categorization of Human Actions in Unsegmented Image Sequences" . IEEE Trans. Image Processing, vol. 20, no. 4, pp. 1126-1140, Mar. 2011. DOI 10.1109/TIP.2010.2076821
I. Patras and E.R. Hancock, "Coupled prediction-classification for robust visual tracking". IEEE Trans. Pattern Analysis and Machine Intelligence, Sept. 2010 vol. 32 no. 9, pp. 1553-1567 DOI: 10.1109/TPAMI.2009.175
S. Koelstra, M. Pantic and I. Patras, "A Dynamic Texture based Approach to Recognition of Facial Actions and their Temporal Models". IEEE Trans. Pattern Analysis and Machine Intelligence, Nov. 2010, vol. 32 no. 11, pp. 1940-1954 DOI: 10.1109/TPAMI.2010.50
A. Oikonomopoulos, M. Pantic and I. Patras, "Sparse B-spline Polynomial Descriptors for Human Activity Recognition". Image and Vision Computing Journal, Special Issue on Spontaneous Behaviour, vol. 27, no. 12, pp. 1814-1825, Dec. 2009
G. Passino, I. Patras, E. Izquierdo, "Aspect Coherence for Graph-Based Semantic Image Labelling", IET; Computer Vision Journal.
Y. Andreopoulos and I. Patras, "Incremental Refinement of Image Salient Point Detection". IEEE Trans. Image Processing, Vol. 17, No. 9, pp. 1685-1699, Sep. 2008.
I. Patras, E.A. Hendriks and R.L. Lagendijk, "Probabilistic Confidence Measures for Block-based Motion Estimation". IEEE Trans. Circuits and Systems for Video Technology Vol. 17, No 8, pp. 988-995, Aug. 2007.
A. Oikonomopoulos, I. Patras and M. Pantic, "Spatiotemporal Salient Points for Visual Recognition of Human Actions". IEEE Trans. Systems, Man, and Cybernetics, Part B, Vol. 36, No. 3, pp. 710-719, Jun. 2006.
M. Pantic and I. Patras, Dynamics of Facial Expression: Recognition of Facial Actions and their Temporal Segments from Face Profile Image Sequences. IEEE Trans. Systems, Man, and Cybernetics, Part B, Vol.36, No. 2, pp 433-449, Apr. 2006.
A. Diplaros, T. Gevers and Ioannis Patras, "Combining Color and Shape Information for Illumination-Viewpoint Invariant Object Recognition" . IEEE Trans. Image Processing, Vol. 15, No. 1, pp 1-11, Jan. 2006.
I. Patras, M. Worring and R. van den Boomgaard, Dense motion estimation using regularization constraints on local parametric models. IEEE Trans. Image Processing, pp. 1432-1443, Vol. 13, No. 11, Nov. 2004.
I. Patras,E.A. Hendriks and R.L. Lagendijk, Semi-automatic Object-based Video Segmentation with Labeling of Color Segments, Signal Processing: Image Communications, vol.18. no. 1, pp. 51-65, Jan. 2003.
I. Patras, E. A. Hendriks and R. L. Lagendijk, Video Segmentation by MAP Labeling of Watershed Segments, in IEEE Trans. Pattern Analysis and Machine Intelligence 23(3): 326-332, Mar. 2001. (An extended version appears as a technical report.)
"Robust Region Merging for Motion Based Segmentation Using the Kolmogorov-Smirnov Test". Image Processing and Communications, Vol. 6, No. 3-4, pp. 27-34, 2001.
Conference proceedings
E. Batziou, P. Alvanitopoulos, K. Ioannidis, I. Patras, S. Vrochidis, I. Kompatsiaris, “Cycle-Consistent Adversarial Networks and Fast Adaptive Bi-dimensional Empirical Mode Decomposition for Style Transfer.”, in 25th ICPR international conference on pattern recognition January 2021, Milan, Italy. IEEE.
E. Apostolidis, E. Adamantidou, A. Metsai, V. Mezaris, I. Patras, "Unsupervised Video Summarization via Attention-Driven Adversarial Learning", Proc. 26th Int. Conf. on Multimedia Modeling (MMM2020), Daejeon, Korea, Jan. 2020 (accepted for oral presentation).
E. Apostolidis, A. Metsai, E. Adamantidou, V. Mezaris, I. Patras, "A Stepwise, Label-based Approach for Improving the Adversarial Training in Unsupervised Video Summarization", Proc. 1st Int. Workshop on AI for Smart TV Content Production, Access and Delivery (AI4TV'19) at ACM Multimedia 2019, Nice, France, October 2019.
G Kordopatis-Zilos, S Papadopoulos, I Patras, I Kompatsiaris, “ViSiL: Fine-grained Spatio-Temporal Video Similarity Learning”, Int’l Conf. Computer Vision, 2019 (oral)
M Bishay, G Zoumpourlis, I Patras, “TARN: Temporal Attentive Relation Network for Few-Shot and Zero-Shot Action Recognition”, British Machine Vision Conference, Sept. 2019.
Bishay, Mina, Stefan Priebe, and Ioannis Patras. "Can Automatic Facial Expression Analysis Be Used for Treatment Outcome Estimation in Schizophrenia?." IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2019.
T Xie, X Yang, T Zhang, C Xu, I Patras. “Exploring Feature Representation and Training Strategies in Temporal Action Localization”. IEEE International Conference on Image Processing (ICIP). IEEE, 2019.
M. Zampoglou, F. Markatopoulou, G. Mercier, D. Touska, E. Apostolidis, S. Papadopoulos, R. Cozien, I. Patras, V. Mezaris, I. Kompatsiaris, "Detecting tampered videos with multimedia forensics and deep learning", Proc. 25th Int. Conf. on Multimedia Modeling (MMM2019), Thessaloniki, Greece, Springer LNCS vol. 11295, pp. 374-386, Jan. 2019.
L. Nixon, E. Apostolidis, F. Markatopoulou, I. Patras, V. Mezaris, "Multimodal Video Annotation for Retrieval and Discovery of Newsworthy Video in a News Verification Scenario", Proc. 25th Int. Conf. on Multimedia Modeling (MMM2019), Thessaloniki, Greece, Springer LNCS vol. 11295, pp. 143-155, Jan. 2019.
I. Marras, P. Palasek and I. Patras, “Deep mixture of MRFs for human pose estimation”, Asian Conference on Computer Vision, Dec. 2018
Aria Ahmadi, I. Marras and I. Patras, “LikeNet: A Siamese Motion Estimation Network Trained in an Unsupervised Way”, British Machine Vision Conference, Sept. 2018 (oral)
Juan Abdon Miranda Correa and Ioannis Patras, “A Multi-task Cascaded Network for Prediction of Affect, Personality, Mood and Social Context Using EEG Signals”, Face and Gesture Recognition, May 2018
Ioannis Marras, Petar Palasek, Ioannis Patras. "Deep Globally Constrained MRFs for Human Pose Estimation." IEEE International Conference on Computer Vision, 2017.
G Kordopatis-Zilos, S Papadopoulos, I Patras, Y Kompatsiaris, "Near-Duplicate Video Retrieval with Deep Metric Learning", Int'l Conf. Computer Vision Workshops, 2017
G Kordopatis-Zilos, S Papadopoulos, I Patras, Y Kompatsiaris, "Near-Duplicate Video Retrieval by Aggregating Intermediate CNN Layers", Int'l Conf. Multimedia Modeling, 251-263, 2017
Jang, Y., Gunes, H. and Patras, I., 2017, October. SmileNet: Registration-Free Smiling Face Detection In The Wild. In workshops IEEE International Conference on Computer Vision, 2017
Ioannis Marras, Petar Palasek, Ioannis Patras. "Deep Refinement Convolutional Networks for Human Pose Estimation." IEEE Int'l conf Automatic Face & Gesture Recognition, 2017
Bishay, Mina, and Ioannis Patras. "Fusing Multilabel Deep Networks for Facial Action Unit Detection." IEEE Int'l conf Automatic Face & Gesture Recognition, 2017.
W. Mou, C. Tzelepis, V. Mezaris, H. Gunes, I. Patras, "Generic to Specific Recognition Models for Membership Analysis in Group Videos", IEEE Int'l conf Automatic Face & Gesture Recognition, 2017.
Mou, W., Gunes, H. and Patras, I., Automatic Analysis of Affect and Membership in Group Settings. IEEE Int'l Conf Automatic Face & Gesture Recognition, 2017.
Ye Tao, Petar Palasek, Zhihao Ling, Ioannis Patras. "Background modelling based on generative unet." In 14th IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS), 2017
A Moumtzidou, T Mironidis, F Markatopoulou, S Andreadis, ..., I. Patras, "VERGE in VBS 2017", Int'l Conf. on Multimedia Modeling, 486-492, 2017
Markatopoulou, F., Galanopoulos, D., Mezaris, V. and Patras, I., Query and Keyframe Representations for Ad-hoc Video Search. In Proceedings of the 2017 ACM on International Conference on Multimedia Retrieval, Jun. 2017
C. Collyda, E. Apostolidis, A. Pournaras, F. Markatopoulou, V. Mezaris, I. Patras, "VideoAnalysis4ALL: An on-line tool for the automatic fragmentation and concept-based annotation, and the interactive exploration of videos", Proc. ACM ICMR 2017, Bucharest, Romania, June 2017.
N Pittaras, F Markatopoulou, V Mezaris, I Patras, "Comparison of Fine-Tuning and Extension Strategies for Deep Convolutional Neural Networks", International Conference on Multimedia Modeling, 102-114, 2016
W Mou, H Gunes, I Patras, "Alone versus In-a-group: A Comparative Analysis of Facial Affect Recognition", ACM Multimedia, 521-525, 2016
Foteini Markatopoulou, Vasileios Mezaris, Ioannis Patras, "Deep Multi-task Learning with Label Correlation Constraint for Video Concept Detection", ACM Multimedia, Amsterdam, Oct. 2016
Aria Ahmadi, Ioannis Patras, "Unsupervised convolutional neural networks for motion estimation", Int' Conf. Image Processing, Sept. 2016
Foteini Markatopoulou, Vasileios Mezaris, Ioannis Patras, "Online multi-task learning for semantic concept detection in video", Int' Conf. Image Processing, Sept. 2016
Christos Tzelepis Eftichia Mavridaki Vasileios Mezaris Ioannis Patras, "Video aesthetic quality assessment using kernel support vector machine with isotropic gaussian sample uncertainty (KSVM-IGSU)", Int' Conf. Image Processing, Sept. 2016
Petar Palasek, Ioannis Patras, "Action Recognition Using Convolutional Restricted Boltzmann Machines", Proceedings of the 1st International Workshop on Multimedia Analysis and Retrieval for Multimodal Interaction (MARMI '16), pages 3-8, New York, NY, USA, 2016. ACM Multimedia
F. Markatopoulou, V. Mezaris, I. Patras, "Ordering of Visual Descriptors in a Classifier Cascade Towards Improved Video Concept Detection", Proc. 22nd Int. Conf. on MultiMedia Modeling (MMM'16), Miami, FL, USA, Jan. 2016.
A. Moumtzidou, T. Mironidis, E. Apostolidis, F. Markatopoulou, A. Ioannidou, I. Gialampoukidis, K. Avgerinakis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, I. Patras, "VERGE: A Multimodal Interactive Search Engine for Video Browsing and Retrieval", Proc. Video Browser Showdown (VBS) at the 22nd Int. Conf. on MultiMedia Modeling (MMM'16), Miami, FL, USA, Springer LNCS vol. 9517, pp. 394-399, Jan. 2016.
Christos Tzelepis, Vasileios Mezaris, Ioannis Patras, “Video Event Detection using Kernel Support Vector Machine with Isotropic Gaussian Sample Uncertainty (KSVM-iGSU)”, In MultiMedia Modeling (MMM), Jan. 2016
F. Markatopoulou, V. Mezaris, I. Patras, "Ordering of Visual Descriptors in a Classifier Cascade Towards Improved Video Concept Detection", Proc. 22nd Int. Conf. on MultiMedia Modeling (MMM'16), Miami, FL, USA, Jan. 2016.
H. Yang, W. Mou, Y. Zhang, I. Patras, H. Gunes, P. Robinson, ``Face Alignment Assisted by Head Pose Estimation'', British Machine Vision Conference (BMVC), Sept. 2015
F. Markatopoulou, V. Mezaris, I. Patras, "Cascade of classifiers based on Binary, Non-binary and Deep Convolutional Network descriptors for video concept detection", Proc. IEEE Int. Conf. on Image Processing (ICIP 2015), Quebec City, Canada, Sept. 2015.
G. Kalpakis, T. Tsikrika, F. Markatopoulou, N. Pittaras, S. Vrochidis, V. Mezaris, I. Patras, I. Kompatsiaris, "Concept Detection on Multimedia Web Resources about Home Made Explosives", Proc. Int. Workshop on Multimedia Forensics and Security (MFSec), held in conjunction with the 10th Int. Conf. on Availability, Reliability and Security (ARES), Toulouse, France, Aug. 2015.
P. Palasek*, H. Yang*, Z. Xu, N. Hajimirza, E. Izquierdo, I. Patras. "A Flexible Calibration Method of Multiple Kinects for 3D Human Reconstruction", ICME-EU Projects workshop. (* equal contribution), July, 2015.
Heng Yang, Ioannis Patras, ``Mirror, mirror on the wall, tell me, is the error small?'', IEEE Conf. Computer Vision and Pattern Recognition (CVPR) , June. 2015
Mojtaba Khomami Abadi, Juan Abdon Miranda Correa, Julia Wache, Heng Yang, Nicu Sebe, Ioannis Patras, ``Inference of Personality Traits and Affect Schedule by Analysis of Spontaneous Reactions to Affective Videos'', Int'l Conf Automatic Face and Gesture Recognition, Apr. 2015
F. Markatopoulou, N. Pittaras, O. Papadopoulou, V. Mezaris, I. Patras, "A Study on the Use of a Binary Local Descriptor and Color Extensions of Local Descriptors for Video Concept Detection", Proc. 21st Int. Conf. on MultiMedia Modeling (MMM'15), Sydney, Australia, Jan. 2015.
A. Moumtzidou, K. Avgerinakis, E. Apostolidis, F. Markatopoulou, K. Apostolidis, T. Mironidis, S. Vrochidis, V. Mezaris, Y. Kompatsiaris, I. Patras, "VERGE: A Multimodal Interactive Video Search Engine", Proc. 21st Int. Conf. on MultiMedia Modeling (MMM'15), Sydney, Australia, Jan. 2015.
N. Gkalelis, F. Markatopoulou, A. Moumtzidou, D. Galanopoulos, K. Avgerinakis, N. Pittaras, S. Vrochidis, V. Mezaris, I. Kompatsiaris, I. Patras, "ITI-CERTH participation to TRECVID 2014", Proc. TRECVID 2014 Workshop, Orlando, FL, USA, November 2014.
Daria Stefic and Ioannis Patras, "Learning visual saliency using topographic independent component analysis", Int'l Conf Image Processing, Paris, France, Oct. 2014.
X. Jia, H. Yang, K. Chan and I. Patras, ``Structured semi-supervised learning for facial landmarks localization with face mask reasoning''. British Machine Vision Confernce, Nottingham, UK, Sept. 2014.
Heng Yang, Ioannis Patras, "Sieving regression forests votes for facial feature detection in the wild", Int'l Conf Computer Vision, Sydney, Australia, Dec. 2013.
W. W. Guo, W. Hu, N. V. Boulgouris, and I. Patras, “Semi-Supervised Visual Recognition With Constrained Graph Regularized Non Negative Matrix Factorization”, IEEE Int'l Conf. Image Processing, Melbourne, Australia, Sep. 2013.
Vijay Kumar and Ioannis Patras, ``Supervised Dictionary Learning for Action Localization'', IEEE Int'l Conf. Automatic Face and Gesture Recognition (FG), Shanghai, China, Apr. 2013
Heng Yang and Ioannis Patras, "Privileged information-based Conditional Regression Forests for Facial Feature Detection", IEEE Int'l Conf. Automatic Face and Gesture Recognition (FG), Shanghai, China, Apr. 2013
Heng Yang and Ioannis Patras, ``Face Parts Localization Using Structured-output Regression Forests'', Asian Conf. Computer Vision, Korea, Nov. 2012
Irene Kotsia and Ioannis Patras, ``Exploring the similarities of neighboring spatiotemporal points for action pair matching'', Asian Conf. Computer Vision, Korea, Nov. 2012
Sertan Kaymak and Ioannis Patras, ``Exploiting Depth and Intensity Information for Head Pose Estimation with Random Forests and Tensor Models'', Asian Conf. Computer Vision (workshops), Korea, Nov. 2012
I.Kotsia and I. Patras, 'Support Tensor Action Spotting', Int'l Conference on Image Processing, Disney's Coronado Springs Resort, Orlando, Florida, Oct. 2012.
Heng Yang, Xiaolin Liu, Ioannis Patras, ``A Simple and Effective Extrinsic Calibration Method of a Camera and a Single Line Scanning Lidar''. Int'l Conf. Pattern Recognition, 2012.
Heng Yang, Yueqiang Zhang, Xiaolin Liu, Ioannis Patras, ``Coupled 3D Tracking and Pose Optimization of Rigid Objects Using Particle Filter''. Int'l Conf. Pattern Recognition, 2012.
Vijay Kumar and I. Patras, ``Learning Codebook Weights for Action Detection '', IEEE Conf. Computer Vision and Pattern Recognition (workshops), Jun. 2012.
I. Kotsia, W. Guo and I. Patras, 'Higher Rank Support Tensor Machines', Int'l Symposium on Visual Computing, Rethymnon, Crete, Greece, Jul. 2012.
S. Vrochidis, I. Patras and I. Kompatsiaris. ``Exploiting Gaze Movements for Automatic Video Annotation'', WIAMIS, 13th Int'l Workshop on Image Analysis for Multimedia Interactive Services, Dublin, Ireland, May 2012.
I. Kotsia, I. Patras and S. Fotopoulos, "Affective gaming: beyond using sensors", 5th Int'l Symposium on Communications, Control and Signal Processing, Rome, Italy, May 2012
I. Kotsia and I. Patras, “Human action localization with support tensor machines’, HICSS - 45, Grand Wailea, Maui, Jan. 2012
Heng Yang and Ioannis Patras, "Face Parts Localization Using Structured-output Regression Forests" , Asian Conf. Computer Vision, Korea, Nov. 2012
Irene Kotsia and Ioannis Patras, "Exploring the similarities of neighboring spatiotemporal points for action pair matching", Asian Conf. Computer Vision, Korea, Nov. 2012
Sertan Kaymak and Ioannis Patras, Exploiting Depth and Intensity Information for Head Pose Estimation with Random Forests and Tensor Models Asian Conf. Computer Vision (workshops), Korea, Nov. 2012
I.Kotsia and I. Patras, ’Support Tensor Action Spotting’, Int’l Conference on Image Processing, Orlando, Florida, Oct. 2012.
Heng Yang, Xiaolin Liu, Ioannis Patras, “A Simple and Effective Extrinsic Calibration Method of a Camera and a Single Line Scanning Lidar”. Int’l Conf. Pattern Recognition, 2012.
Heng Yang, Yueqiang Zhang, Xiaolin Liu, Ioannis Patras, “Coupled 3D Tracking and Pose Optimization of Rigid Objects Using Particle Filter”. Int’l Conf. Pattern Recognition, 2012.
B. G. Vijay Kumar, Ioannis Patras. Learning codebook weights for action detection. CVPR (Workshops) Jun. 2012
Irene Kotsia, Weiwei Guo, Ioannis Patras. Higher Rank Support Tensor Machines. ISVC (2) Jul. 2012
Spiros Nikolopoulos, Georgios Th. Papadopoulos, Ioannis Kompatsiaris, Ioannis Patras: Image Interpretation by Combining Ontologies and Bayesian Networks. SETN 2012: 307-314
S. Vrochidis, I. Patras and I. Kompatsiaris. “Exploiting Gaze Movements for Automatic Video Annotation”, WIAMIS, 13th Int’l Workshop on Image Analysis for Multimedia Interactive Services, Dublin, Ireland, May 2012.
I. Kotsia, I. Patras and S. Fotopoulos, Afective gaming: beyond using sensors, 5th Int’l Symposium on Communications, Control and Signal Processing, Rome, Italy, May 2012.
I. Kotsia and I. Patras, Human action localization with support tensor machines, HICSS - 45, Grand Wailea, Maui, Jan. 2012
Vijay Kumar, Irene Kotsia and Ioannis Patras, Max-Margin Semi-NMF, in British Machine Vision Conference, Dundee, UK, Aug. 2011 bibtex
I. Kotsia and I. Patras, "Support Tucker Machines" , Int'l Conf. Computer Vision and Pattern Recognition, Jun. 2011, Colorado, USA.
S. Vrochidis, I. Patras and I. Kompatsiaris. "An Eye-tracking-based Approach to Facilitate Interactive Video Search", ACM Int'l Conf. Multimedia Information Retrieval, Apr. 2011, Trento, Italy
Mohammad Soleymani, Sander Koelstra, Ioannis Patras and Thierry Pun, "Continuous emotion detection in response to music videos". Face and Gesture Recognition, Sante Barbara, USA, Apr. 2011.
S. Koelstra, A. Yazdani, M. Soleymani, C. Muehl, J.-S. Lee, A. Nijholt, T. Pun, T. Ebrahimi, I. Patras, Single Trial Classification of EEG and Peripheral Physiological Signals for Recognition of Emotions Induced by Music Videos , Conf. Brain Informatics, August 2010, Toronto, Canada.
A. Oikonomopoulos, I. Patras and M. Pantic, "Discriminative Space-time Voting for Joint Recognition and Localization of Actions", ACM Int’l Workshop on Social Signal Processing (SSPW’10), Firenze, Italy, Oct. 2010
O. Rudovic, I. Patras and M. Pantic, "Coupled Gaussian Process Regression for pose-invariant facial expression recognition", European Conf. Computer Vision (ECCV’10), pp. 350-363, Heraklion, Crete, Greece, Sept. 2010 (ORAL)
I. Kotsia and I. Patras, "Multiplicative Update rules for Multilinear Support Vector Machines" , in Int'l Conf. Pattern Recognition 2010, Aug., Istanbul, Turkey, 2010.
G. Passino, I. Patras and E. Izquierdo, "Pyramidal Model for Image Semantic Segmentation", in Int'l Conf. Pattern Recognition 2010, Aug., Istanbul, Turkey, 2010.
O. Rudovic, I. Patras and M. Pantic, "Regression-based multi-view facial expression recognition", Proc. Int’l Conf. Pattern Recognition (ICPR’10), pp. 4121-4124, Istanbul, Turkey, Aug. 2010.
I. Kotsia and I. Patras, "Relative Margin Support Tensor Machines for gait and action recognition," in Int'l Conf. Image and Video Retrieval 2010, 5-7 July, Xi'an, China, 2010. (ORAL)
S. Vrochidis, I. Kompatsiaris and I. Patras, "Optimizing Visual Search with Implicit User Feedback in Interactive Video Retrieval", in Proc. ACM International Conference on Image and Video Retrieval (CIVR 2010), pp 274-281, Xi'an, China, 5-7 July 2010.
S. Vrochidis, I. Kompatsiaris and I. Patras, "Exploiting Implicit User Feedback in Interactive Video Retrieval", in Proc. 11th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2010), Desenzano del Garda, Italy, April 2010.
Weiwei Guo and I. Patras, "Discriminative 3D Human Pose estimation from Monocular Images via Topological Preserving Hierarchical Affinity Clustering", Int'l Conf. Computer Vision (Workshops), Tokyo, Japan, Sep. 2009.
G. Passino, I. Patras, E. Izquierdo, "Latent Semantics Local Distribution for CRF-based Image Semantic Segmentation", British Machine Vision Conference, Sep. 2009.
A. Oikonomopoulos, M. Pantic and I. Patras, An Implicit Spatiotemporal Shape Model for Human Activity Localization and Recognition. IEEE Conf. Computer Vision and Pattern Recognition, (Workshops), Miami, USA, Jun. 2009
S. Koelstra, C. Muehl and I. Patras, "EEG analysis for implicit tagging of video data" , Workshop on Affective Brain-Computer Interfaces, Proc. ACII, pages 27-32, August 2009, Amsterdam, The Netherlands.
S. Nikolopoulos, G. Th. Papadopoulos, I. Kompatsiaris and I. Patras, "An evidence-driven probabilistic inference framework for semantic image understanding ". Int'l Conference on Machine Learning and Data Mining, Leipzig, Germany, Jul. 2009
S. Koelstra and I. Patras, "The FAST-3D spatio-temporal interest region detector" , Int'l Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), London, UK, May 2009.
G. Passino, I. Patras, E. Izquierdo, "Image semantic labelling via heterogeneous low-level descriptors integration in a conditional random field", Int'l Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), London, UK, May 2009.
G. Passino, I. Patras, E. Izquierdo, "On the Role of Structure in Part-based Object Detection", IEEE Int'l Conf. Image Processing, San Diego, USA, Oct. 2008.
A. Oikonomopoulos, M. Pantic and I. Patras, "Human Gesture Recognition using Sparse B-spline Polynomial Representations". Belgian-Netherlands Conference on Artificial Intelligence, Oct. 2008
G. Passino, I. Patras, E. Izquierdo, "Aspect Coherence for Graph-Based Image Labelling", IET Int'l Conf. Visual Information Engineering (VIE), Xi'an, China, Jul. 2008
A. Oikonomopoulos, M. Pantic and I. Patras, "B-spline polynomial descriptors for human activity recognition". IEEE Int'l Conf. Computer Vision and Pattern Recognition (Workshops), Jun. 2008.
I. Patras and Y. Andreopoulos, Incremental Salient Point Detection, Int'l Conf. Acoustics Speech and Signal Processing, Las Vegas, USA, April 2008.
I. Patras and E. R. Hancock, Regression tracking with data relevance determination IEEE Conf. Computer Vision and Pattern Recognition, Minneapolis, Minessota, Jun. 2007. (See suplementary videos)
I. Patras and E. R. Hancock, "Regression-Based Template Tracking in Presence of Occlusions", International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), Santorini, Greece, Jun. 2007.
A. Oikonomopoulos, I. Patras, M. Pantic and N.Paragios, 'Trajectory-based Representation of Human Actions', Int'l Joint Conf. Artificial Intelligence (IJCAI'07), Workshop on AI for Human Computing (AI4HC'07), pp. 31-38, Hyderabad, India, January 2007.
E. Pogalin, A. Redert, I. Patras and E.A. Hendriks, Gaze Tracking by Using Factorized Likelihoods Particle Filtering and Stereo Vision. In International Symposium on 3D Data Processing, Visualization and Transmission, North Carolina, USA, Jun. 2006.
A. Oikonomopoulos, I. Patras and M. Pantic, Kernel-based Recognition of Human Actions Using Spatiotemporal Salient Points, In proceedings of IEEE International Conference on Computer Vision and Pattern Recognition. Workshop on Vision for HCI, New York, USA, Jun. 2006.
I. Patras and M. Pantic, Tracking deformable motion, in Proc. IEEE Int'l Conf. on Systems, Man and Cybernetics (SMC '05), In Waikoloa, Hawaii, October 2005.
M. Pantic, I. Patras and M.F. Valstar, 'Learning spatiotemporal models of facial expressions', in Proc. Int'l Conf. Measuring Behaviour (MB'05), Wageningen, The Netherlands, September 2005.
M. Pantic and I. Patras, 'Detecting facial actions and their temporal segments in nearly frontal-view face image sequences', in Proc. IEEE Int'l Conf. on Systems, Man and Cybernetics (SMC '05), Waikoloa, Hawaii, October 2005.
A. Oikonomopoulos, I. Patras and M. Pantic, 'Spatiotemporal saliency for human action recognition', in Proc. IEEE Int'l Conf. on Multimedia and Expo (ICME '05), Amsterdam, The Netherlands, July 2005.
M.F. Valstar, I. Patras and M. Pantic, 'Facial Action Unit Detection using Probabilistic Actively Learned Support Vector Machines on Tracked Facial Point Data', in Proc. IEEE Int'l Conf. on Computer Vision and Pattern Recognition (CVPR'05), Workshop on Vision for Human-Computer Interaction, San Diego, USA, June 2005.
F.F.J. Winkelman and I. Patras, "Online globally consistent mosaicing using an efficient representation". In IEEE International Conference on Systems, Man and Cybernetics, Den Haag, The Netherlands, Oct. 2004.
M. Valstar, M. Pantic and I. Patras, "Multilevel Motion History for Facial Action Detection from Face Video". In IEEE International Conference on Systems, Man and Cybernetics, Den Haag, The Netherlands, Oct. 2004.
M. Pantic and I. Patras, "Temporal Modeling of Facial Actions from Face Profile Image Sequences". In IEEE International Conference on Multimedia and Expo, Taipei, Taiwan, Jul. 2004.
I. Patras and M. Pantic, "Particle Filtering with Factorized Likelihoods for Tracking Facial Features". In IEEE International Conference on Face and Gesture Recognition, Seoul, South Korea, May 2004.
A. Diplaros, T. Gevers and I. Patras, "Combining Color and Shape Information for Content-Based Image Retrieval on the Internet". In SPIE conference on Internet Imaging, San Hose, California, USA, Jan. 2004.
A. Diplaros, T. Gevers and I. Patras, "Color-Shape Context for Object Recognition". IEEE Workshop on Color and Photometric Methods in Computer Vision. Nice, Oct. 2003.
J. Vendrig, J. den Hartog, D. van Leeuwen, I. Patras, S. Raaijmakers, J. van Rest, C. Snoek and M. Worring, "TREC Feature Extraction by Active Learning". In 11th Text Retrieval Conference (TREC), Gaithersburg, MD, November 2002.
I. Patras, E.A. Hendriks and R.L. Lagendijk, ``Confidence Measures for Block Matching Motion Estimation'', in IEEE International Conference on Image Processing, Sep. 2002, Rochester, NY, USA.
M. Pantic, I. Patras and L. Rothkrantz, ``Facial Action Recognition in Face Profile Image Sequences'', in IEEE International Conference on Multimedia and Expo, Aug. 2002, Laussane.
I. Patras and M. Worring, ``Regularized Patch Motion Estimation'', in 16th IAPR International Conference on Pattern Recognition, Aug. 2002, Quebec City, Canada.
J. Baan, A. van Ballegooij, J-M. Geusebroek, D. Hiemstra J. den Hartog, J. List, C. Snoek, I. Patras, S. Raaijmakers, L. Todoran, J. Vendrig, A. de Vries, T. Westerveld, and M. Worring, ``Lazy users and automatic video retrieval tools in (the) lowlands''. In Proceedings of the 10th Text Retrieval Conference (TREC), NIST, 2001.
I. Patras, E.A. Hendriks and R.L. Lagendijk, "A Semi-Automatic Method for Segmentation of Image Sequences with Local Region-based Classification" . In International Conference on Signal and Image Processing, Nov. 2000, Las Vegas, USA.
M. Broekhoven, T. Hupkens, E.A. Hendriks and I. Patras, ``Segmentation of Image Sequences using the Kolmogorov-Smirnov test''. In International Conference on Signal Processing and Communications, pages 420-425, Sep. 2000, Marbella, Spain.
I. Patras, E.A. Hendriks and R.L. Lagendijk, ``Segmentation of Image Sequences with Local Region-based Classification''. In Annual Conference of Advanced School for Computing and Imaging, pages 314-318, Jun. 2000, Lommel, Belgium.
T.M. Hupkens, M. de Vos, I. Patras and E.A. Hendriks, ``Segmentation based on Successive Robust Motion Estimates''. In Annual Conference of Advanced School for Computing and Imaging, pages 237-244, Jun. 2000, Lommel, Belgium.
I. Patras, E.A. Hendriks and R.L. Lagendijk, ``Segmentation of Image Sequences by merging Watershed Segments''. In IEEE Int. Conf. on Image Processing, Vol.2, pages 642-646, Oct. 1998. Chicago, USA.
I. Patras, E.A. Hendriks and R.L. Lagendijk, ``Merging of Spatial Watershed Segments using a Spatio-Temporal Markov Random Field Label Model and Motion Information''. In IEEE IMDSP Workshop, Jul. 1998, Alpbach, Austria.
I. Patras, E.A. Hendriks and R.L. Lagendijk, ``Segmentation of Image sequences Applying MRF on Watershed Segments''. In IEEE Benelux Signal Processing Symposium, pages 147-150, Leuven, Belgium, Mar. 1998.
I. Patras, E. Hendriks and G. Tziritas, ``Construction of multiple views using jointly estimated motion and disparity fields'', in SPIE Visual Communications and Image processing, Feb. 1997, San Jose, California.
I. Patras, N. Alvertos and G. Tziritas, ``Joint Disparity and Motion Field Estimation in Stereoscopic Imagefs Sequences'', In 13th IAPR International Conference on Pattern Recognition, pp.359-362, Aug. 1996, Vienna, Austria.