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Main Authors: Schall, Maximilian, Knöfel, Felix Leonard, König, Noah Elias, Kubeler, Jan Jonas, von Klinski, Maximilian, Linnemann, Joan Wilhelm, Liu, Xiaoshi, Schlegelmilch, Iven Jelle, Woyciniuk, Ole, Schild, Alexandra, Wasmuht, Dante, Espinet, Magdalena Bermejo, Basas, German Illera, de Melo, Gerard
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2512.07776
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author Schall, Maximilian
Knöfel, Felix Leonard
König, Noah Elias
Kubeler, Jan Jonas
von Klinski, Maximilian
Linnemann, Joan Wilhelm
Liu, Xiaoshi
Schlegelmilch, Iven Jelle
Woyciniuk, Ole
Schild, Alexandra
Wasmuht, Dante
Espinet, Magdalena Bermejo
Basas, German Illera
de Melo, Gerard
author_facet Schall, Maximilian
Knöfel, Felix Leonard
König, Noah Elias
Kubeler, Jan Jonas
von Klinski, Maximilian
Linnemann, Joan Wilhelm
Liu, Xiaoshi
Schlegelmilch, Iven Jelle
Woyciniuk, Ole
Schild, Alexandra
Wasmuht, Dante
Espinet, Magdalena Bermejo
Basas, German Illera
de Melo, Gerard
contents Monitoring critically endangered western lowland gorillas is currently hampered by the immense manual effort required to re-identify individuals from vast archives of camera trap footage. The primary obstacle to automating this process has been the lack of large-scale, "in-the-wild" video datasets suitable for training robust deep learning models. To address this gap, we introduce a comprehensive benchmark with three novel datasets: Gorilla-SPAC-Wild, the largest video dataset for wild primate re-identification to date; Gorilla-Berlin-Zoo, for assessing cross-domain re-identification generalization; and Gorilla-SPAC-MoT, for evaluating multi-object tracking in camera trap footage. Building on these datasets, we present GorillaWatch, an end-to-end pipeline integrating detection, tracking, and re-identification. To exploit temporal information, we introduce a multi-frame self-supervised pretraining strategy that leverages consistency in tracklets to learn domain-specific features without manual labels. To ensure scientific validity, a differentiable adaptation of AttnLRP verifies that our model relies on discriminative biometric traits rather than background correlations. Extensive benchmarking subsequently demonstrates that aggregating features from large-scale image backbones outperforms specialized video architectures. Finally, we address unsupervised population counting by integrating spatiotemporal constraints into standard clustering to mitigate over-segmentation. We publicly release all code and datasets to facilitate scalable, non-invasive monitoring of endangered species
format Preprint
id arxiv_https___arxiv_org_abs_2512_07776
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle GorillaWatch: An Automated System for In-the-Wild Gorilla Re-Identification and Population Monitoring
Schall, Maximilian
Knöfel, Felix Leonard
König, Noah Elias
Kubeler, Jan Jonas
von Klinski, Maximilian
Linnemann, Joan Wilhelm
Liu, Xiaoshi
Schlegelmilch, Iven Jelle
Woyciniuk, Ole
Schild, Alexandra
Wasmuht, Dante
Espinet, Magdalena Bermejo
Basas, German Illera
de Melo, Gerard
Computer Vision and Pattern Recognition
Monitoring critically endangered western lowland gorillas is currently hampered by the immense manual effort required to re-identify individuals from vast archives of camera trap footage. The primary obstacle to automating this process has been the lack of large-scale, "in-the-wild" video datasets suitable for training robust deep learning models. To address this gap, we introduce a comprehensive benchmark with three novel datasets: Gorilla-SPAC-Wild, the largest video dataset for wild primate re-identification to date; Gorilla-Berlin-Zoo, for assessing cross-domain re-identification generalization; and Gorilla-SPAC-MoT, for evaluating multi-object tracking in camera trap footage. Building on these datasets, we present GorillaWatch, an end-to-end pipeline integrating detection, tracking, and re-identification. To exploit temporal information, we introduce a multi-frame self-supervised pretraining strategy that leverages consistency in tracklets to learn domain-specific features without manual labels. To ensure scientific validity, a differentiable adaptation of AttnLRP verifies that our model relies on discriminative biometric traits rather than background correlations. Extensive benchmarking subsequently demonstrates that aggregating features from large-scale image backbones outperforms specialized video architectures. Finally, we address unsupervised population counting by integrating spatiotemporal constraints into standard clustering to mitigate over-segmentation. We publicly release all code and datasets to facilitate scalable, non-invasive monitoring of endangered species
title GorillaWatch: An Automated System for In-the-Wild Gorilla Re-Identification and Population Monitoring
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2512.07776