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A Long-Term Video Tracking Method for Group-Housed Pigs.

Qiumei Yang1,2, Xiangyang Hui1,2, Yigui Huang1,2

  • 1College of Mathematics and Informatics, South China Agricultural University, Guangzhou 510642, China.

Animals : an Open Access Journal From MDPI
|May 25, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces an improved tracking algorithm for pigs, enhancing accuracy and stability in farm settings. The new method enables continuous 24-hour pig monitoring, supporting better farm management.

Keywords:
deep learningmulti-object trackingobject detectionpig

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Area of Science:

  • Computer Vision
  • Animal Science
  • Agricultural Technology

Background:

  • Accurate pig tracking is crucial for farm management but challenging due to occlusion and motion blur.
  • Existing multi-pig tracking methods struggle with long-term, continuous monitoring in real-world farming conditions.

Purpose of the Study:

  • To develop a robust, long-term video tracking method for group-housed pigs.
  • To improve the efficiency and accuracy of pig tracking in production environments.
  • To provide technical support for non-contact, automatic pig monitoring.

Main Methods:

  • Proposed an improved StrongSORT algorithm for enhanced pig tracking.
  • Developed a lightweight pig detection network (YOLO v7-tiny_Pig) for faster detection.
  • Optimized trajectory management to reduce identity switches and improve tracking stability.
  • Constructed a 24-hour pig tracking video dataset.

Main Results:

  • YOLO v7-tiny_Pig reduced parameters by 36.7% and achieved 435 FPS detection speed.
  • The tracking algorithm achieved high scores: 83.16% HOTA, 97.6% MOTP, and 91.42% IDF1.
  • Compared to original StrongSORT, HOTA improved by 6.19%, IDF1 by 10.89%, and IDSW reduced by 69%.

Conclusions:

  • The proposed method significantly enhances pig tracking performance in real farming scenarios.
  • The algorithm enables continuous, stable tracking of pigs for up to 24 hours.
  • This non-contact monitoring approach offers valuable technical support for modern pig farming.