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Autores principales: Grolleau, William, Chaouch, Achraf, Sabourin, Astrid, Lapouge, Guillaume, Achard, Catherine
Formato: Preprint
Publicado: 2026
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Acceso en línea:https://arxiv.org/abs/2603.04314
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author Grolleau, William
Chaouch, Achraf
Sabourin, Astrid
Lapouge, Guillaume
Achard, Catherine
author_facet Grolleau, William
Chaouch, Achraf
Sabourin, Astrid
Lapouge, Guillaume
Achard, Catherine
contents Animal re-identification (ReID) faces critical challenges due to viewpoint variations, particularly in Aerial-Ground (AG-ReID) settings where models must match individuals across drastic elevation changes. However, existing datasets lack the precise angular annotations required to systematically analyze these geometric variations. To address this, we introduce the Multi-view Oriented Observation (MOO) dataset, a large-scale synthetic AG-ReID dataset of $1,000$ cattle individuals captured from $128$ uniformly sampled viewpoints ($128,000$ annotated images). Using this controlled dataset, we quantify the influence of elevation and identify a critical elevation threshold, above which models generalize significantly better to unseen views. Finally, we validate the transferability to real-world applications in both zero-shot and supervised settings, demonstrating performance gains across four real-world cattle datasets and confirming that synthetic geometric priors effectively bridge the domain gap. Collectively, this dataset and analysis lay the foundation for future model development in cross-view animal ReID. MOO is publicly available at https://github.com/TurtleSmoke/MOO.
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institution arXiv
publishDate 2026
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spellingShingle MOO: A Multi-view Oriented Observations Dataset for Viewpoint Analysis in Cattle Re-Identification
Grolleau, William
Chaouch, Achraf
Sabourin, Astrid
Lapouge, Guillaume
Achard, Catherine
Computer Vision and Pattern Recognition
Artificial Intelligence
Animal re-identification (ReID) faces critical challenges due to viewpoint variations, particularly in Aerial-Ground (AG-ReID) settings where models must match individuals across drastic elevation changes. However, existing datasets lack the precise angular annotations required to systematically analyze these geometric variations. To address this, we introduce the Multi-view Oriented Observation (MOO) dataset, a large-scale synthetic AG-ReID dataset of $1,000$ cattle individuals captured from $128$ uniformly sampled viewpoints ($128,000$ annotated images). Using this controlled dataset, we quantify the influence of elevation and identify a critical elevation threshold, above which models generalize significantly better to unseen views. Finally, we validate the transferability to real-world applications in both zero-shot and supervised settings, demonstrating performance gains across four real-world cattle datasets and confirming that synthetic geometric priors effectively bridge the domain gap. Collectively, this dataset and analysis lay the foundation for future model development in cross-view animal ReID. MOO is publicly available at https://github.com/TurtleSmoke/MOO.
title MOO: A Multi-view Oriented Observations Dataset for Viewpoint Analysis in Cattle Re-Identification
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2603.04314