4.7 Article

AnimalTrack: A Benchmark for Multi-Animal Tracking in the Wild

Journal

INTERNATIONAL JOURNAL OF COMPUTER VISION
Volume 131, Issue 2, Pages 496-513

Publisher

SPRINGER
DOI: 10.1007/s11263-022-01711-8

Keywords

Tracking; Multi-object tracking (MOT); Multi-animal tracking (MAT); AnimalTrack; Tracking evaluation

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Multi-animal tracking is crucial for animal motion and behavior analysis, but currently lacks dedicated benchmarks. AnimalTrack is introduced as the first benchmark for multi-animal tracking, consisting of 58 sequences. Evaluation of 14 representative trackers shows that most of them perform poorly on multi-animal tracking.
Multi-animal tracking (MAT), a multi-object tracking (MOT) problem, is crucial for animal motion and behavior analysis and has many crucial applications such as biology, ecology and animal conservation. Despite its importance, MAT is largely under-explored compared to other MOT problems such as multi-human tracking due to the scarcity of dedicated benchmarks. To address this problem, we introduce AnimalTrack, a dedicated benchmark for multi-animal tracking in the wild. Specifically, AnimalTrack consists of 58 sequences from a diverse selection of 10 common animal categories. On average, each sequence comprises of 33 target objects for tracking. In order to ensure high quality, every frame in AnimalTrack is manually labeled with careful inspection and refinement. To our best knowledge, AnimalTrack is the first benchmark dedicated to multi-animal tracking. In addition, to understand how existing MOT algorithms perform on AnimalTrack and provide baselines for future comparison, we extensively evaluate 14 state-of-the-art representative trackers. The evaluation results demonstrate that, not surprisingly, most of these trackers become degenerated due to the differences between pedestrians and animals in various aspects (e.g., pose, motion, and appearance), and more efforts are desired to improve multi-animal tracking. We hope that AnimalTrack together with evaluation and analysis will foster further progress on multi-animal tracking. The dataset and evaluation as well as our analysis will be made available upon the acceptance.

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