no code implementations • 3 Apr 2024 • Jiali Zheng, Rolandos Alexandros Potamias, Stefanos Zafeiriou
In recent years, there has been a significant shift in the field of digital avatar research, towards modeling, animating and reconstructing clothed human representations, as a key step towards creating realistic avatars.
no code implementations • 28 Mar 2024 • Rolandos Alexandros Potamias, Michail Tarasiou, Stylianos Ploumpis, Stefanos Zafeiriou
In the realm of 3D computer vision, parametric models have emerged as a ground-breaking methodology for the creation of realistic and expressive 3D avatars.
no code implementations • 25 Mar 2024 • Dimitrios Gerogiannis, Foivos Paraperas Papantoniou, Rolandos Alexandros Potamias, Alexandros Lattas, Stylianos Moschoglou, Stylianos Ploumpis, Stefanos Zafeiriou
Recent advances in diffusion models have notably enhanced the capabilities of generative models in 2D animation.
1 code implementation • 5 Jan 2024 • Michail Tarasiou, Rolandos Alexandros Potamias, Eimear O'Sullivan, Stylianos Ploumpis, Stefanos Zafeiriou
We present the Locally Adaptive Morphable Model (LAMM), a highly flexible Auto-Encoder (AE) framework for learning to generate and manipulate 3D meshes.
no code implementations • 5 Dec 2023 • Vasileios Baltatzis, Rolandos Alexandros Potamias, Evangelos Ververas, Guanxiong Sun, Jiankang Deng, Stefanos Zafeiriou
Sign Languages (SL) serve as the primary mode of communication for the Deaf and Hard of Hearing communities.
no code implementations • 6 Oct 2023 • Jiali Zheng, Youngkyoon Jang, Athanasios Papaioannou, Christos Kampouris, Rolandos Alexandros Potamias, Foivos Paraperas Papantoniou, Efstathios Galanakis, Ales Leonardis, Stefanos Zafeiriou
This paper introduces the Imperial Light-Stage Head (ILSH) dataset, a novel light-stage-captured human head dataset designed to support view synthesis academic challenges for human heads.
1 code implementation • 10 Jul 2023 • Kyriaki-Margarita Bintsi, Vasileios Baltatzis, Rolandos Alexandros Potamias, Alexander Hammers, Daniel Rueckert
We further show that the assigned attention scores indicate that there are both imaging and non-imaging phenotypes that are informative for brain age estimation and are in agreement with the relevant literature.
1 code implementation • CVPR 2023 • Rolandos Alexandros Potamias, Stylianos Ploumpis, Stylianos Moschoglou, Vasileios Triantafyllou, Stefanos Zafeiriou
Currently, most of the state-of-the-art reconstruction and pose estimation methods rely on the low polygon MANO model.
no code implementations • 30 May 2022 • Rolandos Alexandros Potamias, Alexandros Neofytou, Kyriaki-Margarita Bintsi, Stefanos Zafeiriou
To address such limitations and alleviate the computational burden, we propose a learnable network to approximate geodesic paths.
no code implementations • CVPR 2022 • Rolandos Alexandros Potamias, Stylianos Ploumpis, Stefanos Zafeiriou
Then, we train a sparse attention network to propose candidate triangles based on the edge connectivity of the sampled vertices.
no code implementations • 30 Sep 2021 • Rolandos Alexandros Potamias, Giorgos Bouritsas, Stefanos Zafeiriou
In an attempt to alleviate this computational burden, we propose a fast point cloud simplification method by learning to sample salient points.
no code implementations • 9 Jul 2021 • Rolandos Alexandros Potamias, Georgios Siolas, Andreas - Georgios Stafylopatis
Recognition and classification of Figurative Language (FL) is an open problem of Sentiment Analysis in the broader field of Natural Language Processing (NLP) due to the contradictory meaning contained in phrases with metaphorical content.
no code implementations • ECCV 2020 • Rolandos Alexandros Potamias, Jiali Zheng, Stylianos Ploumpis, Giorgos Bouritsas, Evangelos Ververas, Stefanos Zafeiriou
To this end, in this study we employ a deep mesh encoder-decoder like architecture to synthesize realistic high resolution facial expressions by using a single neutral frame along with an expression identification.
1 code implementation • 23 Nov 2019 • Rolandos Alexandros Potamias, Georgios Siolas, Andreas - Georgios Stafylopatis
Figurative Language (FL) seems ubiquitous in all social-media discussion forums and chats, posing extra challenges to sentiment analysis endeavors.