Search Results for author: Rolandos Alexandros Potamias

Found 14 papers, 4 papers with code

Design2Cloth: 3D Cloth Generation from 2D Masks

no code implementations3 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.

ShapeFusion: A 3D diffusion model for localized shape editing

no code implementations28 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.

Locally Adaptive Neural 3D Morphable Models

1 code implementation5 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.

ILSH: The Imperial Light-Stage Head Dataset for Human Head View Synthesis

no code implementations6 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.

4k Neural Rendering

Multimodal brain age estimation using interpretable adaptive population-graph learning

1 code implementation10 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.

Age Estimation graph construction +1

GraphWalks: Efficient Shape Agnostic Geodesic Shortest Path Estimation

no code implementations30 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.

Neural Mesh Simplification

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.

Revisiting Point Cloud Simplification: A Learnable Feature Preserving Approach

no code implementations30 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.

A Robust Deep Ensemble Classifier for Figurative Language Detection

no code implementations9 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.

Sentiment Analysis

Learning to Generate Customized Dynamic 3D Facial Expressions

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.

A Transformer-based approach to Irony and Sarcasm detection

1 code implementation23 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.

Sarcasm Detection Sentiment Analysis

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