Research on the lying pattern of grouped pigs using unsupervised clustering and deep learning

J Xu, S Zhou, F Xia, A Xu, J Ye - Livestock Science, 2022 - Elsevier
techniques to detect lying patterns and behaviors of pigs. … Delaunay triangle technology
to classify the lying patterns of … In this study, the pig lying patterns (five categories of patterns) …

[PDF][PDF] Development of an Automatic Pig Detection and Tracking System Using Machine Learning

PP Das - 2020 - academia.edu
… Group lying behaviours of the pigs were examined in [33]. … was analyzed using the Delaunay
triangulation technique. … Classifier module is used for classifying features based on the …

The application of cameras in precision pig farming: An overview for swine-keeping professionals

E Arulmozhi, A Bhujel, BE Moon, HT Kim - Animals, 2021 - mdpi.com
… A new approach was introduced to monitor the pigs’ motions; object … to find pig group lying
patterns wherein a mathematical calculation named the Delaunay triangulation (DT) method

Automatic scoring of postures in grouped pigs using depth image and CNN-SVM

J Xu, S Zhou, A Xu, J Ye, A Zhao - Computers and Electronics in Agriculture, 2022 - Elsevier
… this method was used to segment overlapping (contact) pigs. … lying postures of pigs; this
study further subdivided the lying … further increase the classification category. The experimental …

Stress-free detection technologies for pig growth based on welfare farming: A review

F Yuan, H Zhang, T Liu - Applied Engineering in Agriculture, 2020 - elibrary.asabe.org
method of image processing and Delaunay triangulation to detect changes in pig lying
behavior… The use of image analysis as a new approach to assess behaviour classification in a pig

Behaviour recognition of pigs and cattle: Journey from computer vision to deep learning

C Chen, W Zhu, T Norton - Computers and Electronics in Agriculture, 2021 - Elsevier
… and the Delaunay triangulation method to detect change in group lying behaviour of pigs
under … and sternal lying posture detection in pigs under commercial farm conditions (Fig. 8(b)). …

Automatic Detection of Group Recumbency in Pigs via AI-Supported Camera Systems

A Kühnemund, S Götz, G Recke - Animals, 2023 - mdpi.com
… of time periods in which all pigs are lying down using video … The optimal threshold for correctly
classifying whether all piglets … provide a new perspective on previously overlooked issues. …

Novel method for real-time detection and tracking of pig body and its different parts

F Chen, X Liang, L Chen, B Liu, Y Lan - International Journal of Agricultural …, 2020 - ijabe.org
… [11] adopted Delaunay Triangulation to analyze the … This algorithm provides a new way
to solve the problem of target … machine vision for investigation of changes in pig group lying

A systematic review on validated precision livestock farming technologies for pig production and its potential to assess animal welfare

Y Gómez, AH Stygar, IJMM Boumans… - Frontiers in veterinary …, 2021 - frontiersin.org
… This validation procedure should be performed internally (on … in following categories: activity
and posture-related behavior, … , can be predicted by analyzing lying behavior using machine …

Using passive infrared detectors to record group activity and activity in certain focus areas in fattening pigs

N Von Jasmund, A Wellnitz, MS Krommweh… - Animals, 2020 - mdpi.com
… Image processing techniques based on measuring pixel intensity value between images [8]
or Delaunay triangulation [9,10] can also provide information about lying behavior and …