@article{filntisis2022visual,title={Visual Speech-Aware Perceptual 3D Facial Expression Reconstruction from Videos},author={Filntisis, Panagiotis P. and Retsinas, George and Paraperas-Papantoniou, Foivos and Katsamanis, Athanasios and Roussos, Anastasios and Maragos, Petros},journal={arXiv preprint arXiv:2207.11094},publisher={arXiv},year={2022},}
Neural Emotion Director: Speech-preserving semantic control of facial expressions in "in-the-wild" videos
Foivos Paraperas Papantoniou, Panagiotis P. Filntisis, Petros Maragos, and Anastasios Roussos
In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (Oral - Best Paper Finalist) 2022
@inproceedings{paraperas2022ned,title={Neural Emotion Director: Speech-preserving semantic control of facial expressions in "in-the-wild" videos},author={Paraperas Papantoniou, Foivos and Filntisis, Panagiotis P. and Maragos, Petros and Roussos, Anastasios},booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (Oral - Best Paper Finalist)},year={2022},}
Childbot: Multi-robot perception and interaction with children
Niki Efthymiou, Panagiotis P. Filntisis, Petros Koutras, Antigoni Tsiami, Jack Hadfield, Gerasimos Potamianos, and Petros Maragos
@article{efthymiou2022childbot,title={Childbot: Multi-robot perception and interaction with children},author={Efthymiou, Niki and Filntisis, Panagiotis P. and Koutras, Petros and Tsiami, Antigoni and Hadfield, Jack and Potamianos, Gerasimos and Maragos, Petros},journal={Robotics and Autonomous Systems},volume={150},pages={103975},year={2022},publisher={North-Holland},}
Towards unsupervised subject-independent speech-based relapse detection in patients with psychosis using variational autoencoders
Christos Garoufis, Athanasia Zlatintsi, Panagiotis P. Filntisis, Niki Efthymiou, Emmanouil Kalisperakis, Vassiliki Garyfalli, Marina Lazaridi, Nikolaos Smyrnis, and Petros Maragos
In European Signal Processing Conference (EUSIPCO) 2022
@inproceedings{garoufis2022towards,author={Garoufis, Christos and Zlatintsi, Athanasia and Filntisis, Panagiotis P. and Efthymiou, Niki and Kalisperakis, Emmanouil and Garyfalli, Vassiliki and Lazaridi, Marina and Smyrnis, Nikolaos and Maragos, Petros},booktitle={European Signal Processing Conference (EUSIPCO)},pages={To Appear},year={2022},organization={IEEE},}
A comparative study of autoencoder architectures for mental health analysis using wearable sensors data
Maria Panagiotou, Athanasia Zlatintsi, Panagiotis P. Filntisis, Argyris Roumeliotis, Niki Efthymiou, and Petros Maragos
In European Signal Processing Conference (EUSIPCO) 2022
@inproceedings{panagiotou2022,author={Panagiotou, Maria and Zlatintsi, Athanasia and Filntisis, Panagiotis P. and Roumeliotis, Argyris and Efthymiou, Niki and Maragos, Petros},booktitle={European Signal Processing Conference (EUSIPCO)},pages={To Appear},year={2022},organization={IEEE},}
Cartoonized Anonymization of Sign Language Videos
Christina Ourania Tze, Panagiotis P. Filntisis, Anastasios Roussos, and Petros Maragos
In Image, Video, and Multidimensional Signal Processing Workshop (IVMSP) 2022
@inproceedings{tze2022cartoon,title={Cartoonized Anonymization of Sign Language Videos},author={Tze, Christina Ourania and Filntisis, Panagiotis P. and Roussos, Anastasios and Maragos, Petros},booktitle={Image, Video, and Multidimensional Signal Processing Workshop (IVMSP)},pages={To Appear},year={2022},organization={IEEE},}
Attribute-based Gesture Recognition: Generalization to Unseen Classes
Georgios Retsinas, Panagiotis P. Filntisis, Nikolaos Kardaris, and Petros Maragos
In Image, Video, and Multidimensional Signal Processing Workshop (IVMSP) 2022
@inproceedings{retsinas2022attr,title={Attribute-based Gesture Recognition: Generalization to Unseen Classes},author={Retsinas, Georgios and Filntisis, Panagiotis P. and Kardaris, Nikolaos and Maragos, Petros},booktitle={Image, Video, and Multidimensional Signal Processing Workshop (IVMSP)},pages={To Appear},year={2022},organization={IEEE},}
2021
An Audiovisual Child Emotion Recognition System for Child-Robot Interaction Applications
Panagiotis P. Filntisis, Niki Efthymiou, Gerasimos Potamianos, and Petros Maragos
In European Signal Processing Conference (EUSIPCO) 2021
@inproceedings{filntisis2021audiovisual,title={An Audiovisual Child Emotion Recognition System for Child-Robot Interaction Applications},author={Filntisis, Panagiotis P. and Efthymiou, Niki and Potamianos, Gerasimos and Maragos, Petros},booktitle={European Signal Processing Conference (EUSIPCO)},pages={791--795},year={2021},organization={IEEE},}
Leveraging semantic scene characteristics and multi-stream convolutional architectures in a contextual approach for video-based visual emotion recognition in the wild
Ioannis Pikoulis, Panagiotis P. Filntisis, and Petros Maragos
In IEEE International Conference on Automatic Face and Gesture Recognition (FG 2021) 2021
@inproceedings{pikoulis2021leveraging,title={Leveraging semantic scene characteristics and multi-stream convolutional architectures in a contextual approach for video-based visual emotion recognition in the wild},author={Pikoulis, Ioannis and Filntisis, Panagiotis P. and Maragos, Petros},booktitle={IEEE International Conference on Automatic Face and Gesture Recognition (FG 2021)},pages={01--08},year={2021},organization={IEEE},}
Exploiting emotional dependencies with graph convolutional networks for facial expression recognition
Panagiotis Antoniadis, Panagiotis P. Filntisis, and Petros Maragos
In IEEE International Conference on Automatic Face and Gesture Recognition (FG 2021) 2021
@inproceedings{antoniadis2021exploiting,title={Exploiting emotional dependencies with graph convolutional networks for facial expression recognition},author={Antoniadis, Panagiotis and Filntisis, Panagiotis P. and Maragos, Petros},booktitle={IEEE International Conference on Automatic Face and Gesture Recognition (FG 2021)},pages={1--8},year={2021},organization={IEEE},}
A robotic edutainment framework for designing child-robot interaction scenarios
Niki Efthymiou, Panagiotis P. Filntisis, Gerasimos Potamianos, and Petros Maragos
In PErvasive Technologies Related to Assistive Environments Conference (PETRA) 2021
@inproceedings{efthymiou2021robotic,title={A robotic edutainment framework for designing child-robot interaction scenarios},author={Efthymiou, Niki and Filntisis, Panagiotis P. and Potamianos, Gerasimos and Maragos, Petros},booktitle={PErvasive Technologies Related to Assistive Environments Conference (PETRA)},pages={160--166},year={2021},}
An audiovisual and contextual approach for categorical and continuous emotion recognition in-the-wild
Panagiotis Antoniadis, Ioannis Pikoulis, Panagiotis P. Filntisis, and Petros Maragos
In Proceedings of the IEEE/CVF International Conference on Computer Vision Workshops (CVPRW) 2021
@inproceedings{antoniadis2021audiovisual,title={An audiovisual and contextual approach for categorical and continuous emotion recognition in-the-wild},author={Antoniadis, Panagiotis and Pikoulis, Ioannis and Filntisis, Panagiotis P. and Maragos, Petros},booktitle={Proceedings of the IEEE/CVF International Conference on Computer Vision Workshops (CVPRW)},pages={3645--3651},year={2021},}
An Unsupervised Learning Approach for Detecting Relapses from Spontaneous Speech in Patients with Psychosis
C Garoufis, A Zlatintsi, PP Filntisis, N Efthymiou, E Kalisperakis, V Garyfalli, T Karantinos, L Mantonakis, N Smyrnis, and P Maragos
In IEEE EMBS International Conference on Biomedical and Health Informatics (BHI) 2021
@inproceedings{garoufis2021unsupervised,title={An Unsupervised Learning Approach for Detecting Relapses from Spontaneous Speech in Patients with Psychosis},author={Garoufis, C and Zlatintsi, A and Filntisis, PP and Efthymiou, N and Kalisperakis, E and Garyfalli, V and Karantinos, T and Mantonakis, L and Smyrnis, N and Maragos, P},booktitle={IEEE EMBS International Conference on Biomedical and Health Informatics (BHI)},pages={1--5},year={2021},organization={IEEE},}
Visual Robotic Perception System with Incremental Learning for Child–Robot Interaction Scenarios
Niki Efthymiou, Panagiotis P. Filntisis, Gerasimos Potamianos, and Petros Maragos
@article{efthymiou2021visual,title={Visual Robotic Perception System with Incremental Learning for Child--Robot Interaction Scenarios},author={Efthymiou, Niki and Filntisis, Panagiotis P. and Potamianos, Gerasimos and Maragos, Petros},journal={Technologies},volume={9},number={4},pages={86},year={2021},publisher={Multidisciplinary Digital Publishing Institute},}
2020
Emotion understanding in videos through body, context, and visual-semantic embedding loss
Panagiotis P. Filntisis, Niki Efthymiou, Gerasimos Potamianos, and Petros Maragos
In European Conference on Computer Vision Workshops (ECCVW) 2020
@inproceedings{filntisis2020emotion,title={Emotion understanding in videos through body, context, and visual-semantic embedding loss},author={Filntisis, Panagiotis P. and Efthymiou, Niki and Potamianos, Gerasimos and Maragos, Petros},booktitle={European Conference on Computer Vision Workshops (ECCVW)},pages={747--755},year={2020},organization={Springer, Cham},note={Challenge Winner!}}
Person identification using deep convolutional neural networks on short-term signals from wearable sensors
George Retsinas, Panagiotis P. Filntisis, Niki Efthymiou, Emmanouil Theodosis, Athanasia Zlatintsi, and Petros Maragos
In IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020
@inproceedings{retsinas2020person,title={Person identification using deep convolutional neural networks on short-term signals from wearable sensors},author={Retsinas, George and Filntisis, Panagiotis P. and Efthymiou, Niki and Theodosis, Emmanouil and Zlatintsi, Athanasia and Maragos, Petros},booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},pages={3657--3661},year={2020},organization={IEEE},}
An intelligent cloud-based platform for effective monitoring of patients with psychotic disorders
Ilias Maglogiannis, Athanasia Zlatintsi, Andreas Menychtas, Dennis Papadimatos, Panagiotis P. Filntisis, Niki Efthymiou, George Retsinas, Panayiotis Tsanakas, and Petros Maragos
In IFIP International Conference on Artificial Intelligence Applications and Innovations 2020
@inproceedings{maglogiannis2020intelligent,title={An intelligent cloud-based platform for effective monitoring of patients with psychotic disorders},author={Maglogiannis, Ilias and Zlatintsi, Athanasia and Menychtas, Andreas and Papadimatos, Dennis and Filntisis, Panagiotis P. and Efthymiou, Niki and Retsinas, George and Tsanakas, Panayiotis and Maragos, Petros},booktitle={IFIP International Conference on Artificial Intelligence Applications and Innovations},pages={293--307},year={2020},organization={Springer, Cham},}
Identifying differences in physical activity and autonomic function patterns between psychotic patients and controls over a long period of continuous monitoring using wearable sensors
Panagiotis P. Filntisis, Athanasia Zlatintsi, Niki Efthymiou, Emmanouil Kalisperakis, Thomas Karantinos, Marina Lazaridi, Nikolaos Smyrnis, and Petros Maragos
@article{filntisis2020identifying,title={Identifying differences in physical activity and autonomic function patterns between psychotic patients and controls over a long period of continuous monitoring using wearable sensors},author={Filntisis, Panagiotis P. and Zlatintsi, Athanasia and Efthymiou, Niki and Kalisperakis, Emmanouil and Karantinos, Thomas and Lazaridi, Marina and Smyrnis, Nikolaos and Maragos, Petros},journal={arXiv preprint arXiv:2011.02285},year={2020},}
2019
Fusing body posture with facial expressions for joint recognition of affect in child–robot interaction
Panagiotis P. Filntisis, Niki Efthymiou, Petros Koutras, Gerasimos Potamianos, and Petros Maragos
@article{filntisis2019fusing,title={Fusing body posture with facial expressions for joint recognition of affect in child--robot interaction},author={Filntisis, Panagiotis P. and Efthymiou, Niki and Koutras, Petros and Potamianos, Gerasimos and Maragos, Petros},journal={IEEE Robotics and Automation Letters},volume={4},number={4},pages={4011--4018},year={2019},publisher={IEEE},}
An environment for gestural interaction with 3d virtual musical instruments as an educational tool
Christos Garoufis, Athanasia Zlatintsi, Kosmas Kritsis, Panagiotis P. Filntisis, Vassilis Katsouros, and Petros Maragos
In European Signal Processing Conference (EUSIPCO) 2019
@inproceedings{garoufis2019environment,title={An environment for gestural interaction with 3d virtual musical instruments as an educational tool},author={Garoufis, Christos and Zlatintsi, Athanasia and Kritsis, Kosmas and Filntisis, Panagiotis P. and Katsouros, Vassilis and Maragos, Petros},booktitle={European Signal Processing Conference (EUSIPCO)},pages={1--5},year={2019},organization={IEEE},}
2018
Far-field audio-visual scene perception of multi-party human-robot interaction for children and adults
Antigoni Tsiami, Panagiotis P. Filntisis, Niki Efthymiou, Petros Koutras, Gerasimos Potamianos, and Petros Maragos
In IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2018
@inproceedings{tsiami2018far,title={Far-field audio-visual scene perception of multi-party human-robot interaction for children and adults},author={Tsiami, Antigoni and Filntisis, Panagiotis P. and Efthymiou, Niki and Koutras, Petros and Potamianos, Gerasimos and Maragos, Petros},booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},pages={6568--6572},year={2018},organization={IEEE},}
Multi-view fusion for action recognition in child-robot interaction
Niki Efthymiou, Petros Koutras, Panagiotis P. Filntisis, Gerasimos Potamianos, and Petros Maragos
In IEEE International Conference on Image Processing (ICIP) 2018
@inproceedings{efthymiou2018multi,title={Multi-view fusion for action recognition in child-robot interaction},author={Efthymiou, Niki and Koutras, Petros and Filntisis, Panagiotis P. and Potamianos, Gerasimos and Maragos, Petros},booktitle={IEEE International Conference on Image Processing (ICIP)},pages={455--459},year={2018},organization={IEEE},}
Multi3: Multi-sensory perception system for multi-modal child interaction with multiple robots
Antigoni Tsiami, Petros Koutras, Niki Efthymiou, Panagiotis P. Filntisis, Gerasimos Potamianos, and Petros Maragos
In IEEE International Conference on Robotics and Automation (ICRA) 2018
@inproceedings{tsiami2018multi3,title={Multi3: Multi-sensory perception system for multi-modal child interaction with multiple robots},author={Tsiami, Antigoni and Koutras, Petros and Efthymiou, Niki and Filntisis, Panagiotis P. and Potamianos, Gerasimos and Maragos, Petros},booktitle={IEEE International Conference on Robotics and Automation (ICRA)},pages={4585--4592},year={2018},organization={IEEE},}
A web-based real-time kinect application for gestural interaction with virtual musical instruments
Athanasia Zlatintsi, Panagiotis P. Filntisis, Christos Garoufis, Antigoni Tsiami, Kosmas Kritsis, Maximos A Kaliakatsos-Papakostas, Aggelos Gkiokas, Vassilis Katsouros, and Petros Maragos
@incollection{zlatintsi2018web,title={A web-based real-time kinect application for gestural interaction with virtual musical instruments},author={Zlatintsi, Athanasia and Filntisis, Panagiotis P. and Garoufis, Christos and Tsiami, Antigoni and Kritsis, Kosmas and Kaliakatsos-Papakostas, Maximos A and Gkiokas, Aggelos and Katsouros, Vassilis and Maragos, Petros},booktitle={Proceedings of the Audio Mostly 2018 on Sound in Immersion and Emotion},pages={1--6},year={2018},}
2017
Video-realistic expressive audio-visual speech synthesis for the Greek language
Panagiotis P. Filntisis, Athanasios Katsamanis, Pirros Tsiakoulis, and Petros Maragos
@article{filntisis2017video,title={Video-realistic expressive audio-visual speech synthesis for the Greek language},author={Filntisis, Panagiotis P. and Katsamanis, Athanasios and Tsiakoulis, Pirros and Maragos, Petros},journal={Speech Communication},volume={95},pages={137--152},year={2017},publisher={North-Holland},}
Photorealistic adaptation and interpolation of facial expressions using HMMS and AAMS for audio-visual speech synthesis
Panagiotis P. Filntisis, Athanasios Katsamanis, and Petros Maragos
In IEEE International Conference on Image Processing (ICIP) 2017
@inproceedings{filntisis2017photorealistic,title={Photorealistic adaptation and interpolation of facial expressions using HMMS and AAMS for audio-visual speech synthesis},author={Filntisis, Panagiotis P. and Katsamanis, Athanasios and Maragos, Petros},booktitle={IEEE International Conference on Image Processing (ICIP)},pages={2941--2945},year={2017},organization={IEEE},}
Demonstration of an HMM-based photorealistic expressive audio-visual speech synthesis system
Panagiotis P. Filntisis, Athanasios Katsamanis, and Petros Maragos
In IEEE International Conference on Image Processing (ICIP) 2017
@inproceedings{filntisis2017demonstration,title={Demonstration of an HMM-based photorealistic expressive audio-visual speech synthesis system},author={Filntisis, Panagiotis P. and Katsamanis, Athanasios and Maragos, Petros},booktitle={IEEE International Conference on Image Processing (ICIP)},pages={4588--4588},year={2017},organization={IEEE},}