Christos Tzelepis

Senior Research Scientist, Generative AI // Computer Vision // Machine Learning
Samsung AI Center, Cambridge

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I am a Senior Research Scientist at Samsung AI Center, Cambridge working with Dr. Georgios (Yorgos) Tzimiropoulos. Prior to that, I was a Lecturer in Computer Science at City, University of London (2023-2024) and a post-doctoral researcher at Queen Mary University of London (2018-2023) working with Prof. Ioannis (Yiannis) Patras. I received the Diploma degree in Electrical and Computer Engineering from Aristotle University of Thessaloniki, Greece (2011), and the Ph.D. degree in Machine Learning and Computer Vision from Queen Mary University of London (2018).

news

Jul 9, 2024 One paper accepted at MICCAI 2024.
Jun 1, 2024 One paper accepted at TPAMI (if=20.8)
Jan 26, 2024 One paper accepted at IJCV (if=19.5)
Nov 3, 2023 One paper accepted at WACV 2024
Sep 22, 2023 One paper accepted at NeurIPS 2023

selected publications

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    Bilinear Models of Parts and Appearances in Generative Adversarial Networks
    James Oldfield, Christos Tzelepis, Yannis Panagakis, and 2 more authors
    IEEE Transactions on Pattern Analysis and Machine Intelligence (T-PAMI), 2024
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    One-shot Neural Face Reenactment via Finding Directions in GAN’s Latent Space
    Stella Bounareli, Christos Tzelepis, Vasileios Argyriou, and 2 more authors
    International Journal of Computer Vision (IJCV), 2024
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    Parts of Speech-Grounded Subspaces in Vision-Language Models
    James Oldfield, Christos Tzelepis, Yannis Panagakis, and 2 more authors
    In Advances in Neural Information Processing Systems (NeurIPS), 2023
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    HyperReenact: One-Shot Reenactment via Jointly Learning to Refine and Retarget Faces
    Stella Bounareli, Christos Tzelepis, Vasileios Argyriou, and 2 more authors
    2023 IEEE/CVF International Conference on Computer Vision (ICCV), 2023
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    Attribute-preserving Face Dataset Anonymization via Latent Code Optimization
    Simone Barattin*, Christos Tzelepis*, Ioannis Patras, and 1 more author
    In IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) [* denotes co-first authorship], 2023
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    PandA: Unsupervised Learning of Parts and Appearances in the Feature Maps of GANs
    James Oldfield, Christos Tzelepis, Yannis Panagakis, and 2 more authors
    In The Eleventh International Conference on Learning Representations , 2023
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    DnS: Distill-and-Select for Efficient and Accurate Video Indexing and Retrieval
    Giorgos Kordopatis-Zilos, Christos Tzelepis, Symeon Papadopoulos, and 2 more authors
    International Journal of Computer Vision (IJCV), 2022
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    WarpedGANSpace: Finding non-linear RBF paths in GAN latent space
    Christos Tzelepis, Georgios Tzimiropoulos, and I. Patras
    2021 IEEE/CVF International Conference on Computer Vision (ICCV), 2021
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    Linear Maximum Margin Classifier for Learning from Uncertain Data
    Christos Tzelepis, Vasileios Mezaris, and Ioannis Patras
    IEEE Transactions on Pattern Analysis and Machine Intelligence (T-PAMI), 2018