Search Results for author: Hassen Drira

Found 6 papers, 0 papers with code

ConViViT -- A Deep Neural Network Combining Convolutions and Factorized Self-Attention for Human Activity Recognition

no code implementations22 Oct 2023 Rachid Reda Dokkar, Faten Chaieb, Hassen Drira, Arezki Aberkane

In this research, we propose a novel approach that leverages the strengths of both CNNs and Transformers in an hybrid architecture for performing activity recognition using RGB videos.

Human Activity Recognition

Geometric Deep Neural Network Using Rigid and Non-Rigid Transformations for Human Action Recognition

no code implementations ICCV 2021 Rasha Friji, Hassen Drira, Faten Chaieb, Hamza Kchok, Sebastian Kurtek

Deep Learning architectures, albeit successful in mostcomputer vision tasks, were designed for data with an un-derlying Euclidean structure, which is not usually fulfilledsince pre-processed data may lie on a non-linear space. In this paper, we propose a geometry aware deep learn-ing approach using rigid and non rigid transformation opti-mization for skeleton-based action recognition.

Action Recognition Skeleton Based Action Recognition +1

KShapeNet: Riemannian network on Kendall shape space for Skeleton based Action Recognition

no code implementations24 Nov 2020 Racha Friji, Hassen Drira, Faten Chaieb, Sebastian Kurtek, Hamza Kchok

Deep Learning architectures, albeit successful in most computer vision tasks, were designed for data with an underlying Euclidean structure, which is not usually fulfilled since pre-processed data may lie on a non-linear space.

Action Recognition Skeleton Based Action Recognition

Sparse Coding of Shape Trajectories for Facial Expression and Action Recognition

no code implementations8 Aug 2019 Amor Ben Tanfous, Hassen Drira, Boulbaba Ben Amor

The detection and tracking of human landmarks in video streams has gained in reliability partly due to the availability of affordable RGB-D sensors.

Action Recognition Dictionary Learning +4

Coding Kendall's Shape Trajectories for 3D Action Recognition

no code implementations CVPR 2018 Amor Ben Tanfous, Hassen Drira, Boulbaba Ben Amor

Grounding on the Riemannian geometry of the shape space, an intrinsic sparse coding and dictionary learning formulation is proposed for static skeletal shapes to overcome the inherent non-linearity of the manifold.

3D Action Recognition Dictionary Learning +2

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