4.7 Article

Visual identification of individual Holstein-Friesian cattle via deep metric learning

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出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.compag.2021.106133

关键词

Automated agriculture; Computer vision; Deep learning; Metric learning; Animal biometrics

资金

  1. Alan Turing Institute under the EPSRC grant [EP/N510129/1]
  2. John Oldacre Foundation through the John Oldacre Centre for Sustainability and Welfare in Dairy Production, Bristol Veterinary School

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This study uses the distinctive black and white coat patterns of Holstein-Friesian cattle to automate visual detection and identification of individual animals using deep learning techniques. Deep metric learning systems show strong performance in identifying unseen cattle during system training, achieving a high accuracy rate of 93.8%.
Holstein-Friesian cattle exhibit individually-characteristic black and white coat patterns visually akin to those arising from Turing's reaction-diffusion systems. This work takes advantage of these natural markings in order to automate visual detection and biometric identification of individual Holstein-Friesians via convolutional neural networks and deep metric learning techniques. Existing approaches rely on markings, tags or wearables with a variety of maintenance requirements, whereas we present a totally hands-off method for the automated detection, localisation, and identification of individual animals from overhead imaging in an open herd setting, i.e. where new additions to the herd are identified without re-training. We find that deep metric learning systems show strong performance even when many cattle unseen during system training are to be identified and reidentified - achieving 93.8% accuracy when trained on just half of the population. This work paves the way for facilitating the non-intrusive monitoring of cattle applicable to precision farming and surveillance for automated productivity, health and welfare monitoring, and to veterinary research such as behavioural analysis, disease outbreak tracing, and more. Key parts of the source code, network weights and underpinning datasets are available publicly (OpenCows2020).

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