Digital Image Processing
Robust classification of animal tracking data
Computers and Electronics in Agriculture
Computers and Electronics in Agriculture
A model for monitoring the condition of young pigs by their drinking behaviour
Computers and Electronics in Agriculture
Modelling the drinking patterns of young pigs using a state space model
Computers and Electronics in Agriculture
Computers and Electronics in Agriculture
Original papers: Development of a real-time computer vision system for tracking loose-housed pigs
Computers and Electronics in Agriculture
Color fourier descriptor for defect image retrieval
ICIAP'05 Proceedings of the 13th international conference on Image Analysis and Processing
An FFT-based technique for translation, rotation, and scale-invariant image registration
IEEE Transactions on Image Processing
The automatic monitoring of pigs water use by cameras
Computers and Electronics in Agriculture
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The purpose of this work was to investigate feasibility of an automated method to identify marked pigs in a pen in experimental conditions and for behaviour-related research by using image processing. This study comprised measurements on four groups of piglets, with 10 piglets per group in a pen. On average, piglets had a weight of 27+/-4.4kg at the start of experiments and 40kg+/-6.5 at the end. For the purpose of individual identification, basic patterns were painted on the back of the pigs. Each pen was monitored by a top-view CCD camera. Ellipse fitting algorithms were employed to localise pigs. Consequently, individual pigs could be identified by their respective paint pattern using pattern recognition techniques. Taking visual labelling of videos by an experienced ethologist as the gold standard, pigs could be identified with an average accuracy of 88.7%. It was also shown that behaviours such as resting can be monitored using the presented technique.