Search Results for author: Michail Tarasiou

Found 9 papers, 5 papers with code

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.

Rethinking the Domain Gap in Near-infrared Face Recognition

no code implementations1 Dec 2023 Michail Tarasiou, Jiankang Deng, Stefanos Zafeiriou

Heterogeneous face recognition (HFR) involves the intricate task of matching face images across the visual domains of visible (VIS) and near-infrared (NIR).

Face Recognition Heterogeneous Face Recognition

ViTs for SITS: Vision Transformers for Satellite Image Time Series

2 code implementations CVPR 2023 Michail Tarasiou, Erik Chavez, Stefanos Zafeiriou

In this paper we introduce the Temporo-Spatial Vision Transformer (TSViT), a fully-attentional model for general Satellite Image Time Series (SITS) processing based on the Vision Transformer (ViT).

Semantic Segmentation Time Series +1

Embedding Earth: Self-supervised contrastive pre-training for dense land cover classification

1 code implementation11 Mar 2022 Michail Tarasiou, Stefanos Zafeiriou

In training machine learning models for land cover semantic segmentation there is a stark contrast between the availability of satellite imagery to be used as inputs and ground truth data to enable supervised learning.

Earth Observation Land Cover Classification +1

DeepSatData: Building large scale datasets of satellite images for training machine learning models

1 code implementation28 Apr 2021 Michail Tarasiou, Stefanos Zafeiriou

This report presents design considerations for automatically generating satellite imagery datasets for training machine learning models with emphasis placed on dense classification tasks, e. g. semantic segmentation.

BIG-bench Machine Learning Semantic Segmentation

Context-self contrastive pretraining for crop type semantic segmentation

2 code implementations9 Apr 2021 Michail Tarasiou, Riza Alp Guler, Stefanos Zafeiriou

For crop type semantic segmentation from Satellite Image Time Series (SITS) we find performance at parcel boundaries to be a critical bottleneck and explain how CSCL tackles the underlying cause of that problem, improving the state-of-the-art performance in this task.

Contrastive Learning Segmentation +4

Extracting deep local features to detect manipulated images of human faces

no code implementations29 Nov 2019 Michail Tarasiou, Stefanos Zafeiriou

Recent developments in computer vision and machine learning have made it possible to create realistic manipulated videos of human faces, raising the issue of ensuring adequate protection against the malevolent effects unlocked by such capabilities.

Synthesising 3D Facial Motion from "In-the-Wild" Speech

no code implementations15 Apr 2019 Panagiotis Tzirakis, Athanasios Papaioannou, Alexander Lattas, Michail Tarasiou, Björn Schuller, Stefanos Zafeiriou

Synthesising 3D facial motion from speech is a crucial problem manifesting in a multitude of applications such as computer games and movies.

Lip Reading Motion Synthesis

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