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An efficient center-based method for real-time pig posture recognition and tracking

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Abstract

Detecting, tracking, and recognizing the posture of individual pigs are the primary computer vision tasks of many camera-based decision support tools for precise livestock monitoring. Recently, the use of deep learning approaches in computer vision, particularly convolutional neural networks (CNNs), has led to performance never before possible. However, the heavy constraints of pig environments such as instinctive grouping and similar animal appearance limit the effectiveness of state-of-the-art approaches popular in other application fields. To tackle these problems, we propose a fully anchor-free center-based CNN framework that detects pigs, classifies their postures, and tracks them throughout an image sequence. Input images are first fed into two sub-networks that detect pig posture and generate a global appearance map from which local appearance vectors corresponding to the detected pig centers can be extracted. Next, an assignment strategy uses spatial and appearance metrics to associate each pig detected in the frame with one of the tracked pig trajectories in a video sequence. As shown by the experiments, our real-time method significantly outperforms state-of-the-art approaches for pig detection, posture recognition, and tracking.

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Funding

This work is supported by the French National Association of Research and Technology (ANRT) with the Grant CIFRE 2018/1906.

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Authors and Affiliations

  1. ENIB, UMR CNRS 6285 LabSTICC, 29238, Brest, France

    Morann Mattina, Abdesslam Benzinou & Kamal Nasreddine

  2. Cooperl Innovation S.A.S, 7 rue de la Jeannaie, 22400, Lamballe, France

    Morann Mattina & Francis Richard

Authors
  1. Morann Mattina
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  2. Abdesslam Benzinou
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  3. Kamal Nasreddine
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  4. Francis Richard
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Contributions

Morann Mattina: Conceptualization, data curation, formal analysis, investigation, methodology, resources, software, validation, visualization, writing - original draft, writing - review and editing. Abdesslam Benzinou: Conceptualization, data curation, formal analysis, funding acquisition, investigation, methodology, project administration, resources, software, supervision, validation, visualization, writing - original draft, writing - review and editing. Kamal Nasreddine: Conceptualization, data curation, formal analysis, investigation, methodology, resources, software, supervision, validation, visualization, writing - original draft, writing - review and editing. Francis Richard: Conceptualization, data curation, formal analysis, investigation, methodology, resources, software, supervision, validation, visualization, writing - original draft, writing - review and editing

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Correspondence to Abdesslam Benzinou.

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Mattina, M., Benzinou, A., Nasreddine, K. et al. An efficient center-based method for real-time pig posture recognition and tracking. Appl Intell 54, 5183–5196 (2024). https://doi.org/10.1007/s10489-024-05439-5

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