Automatic monitoring of pig locomotion using image analysis

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• 作者：Mohammad Amin Kashiha ; Claudia Bahr ; Sanne Ott ; Christel P.H. Moons ; Theo A. Niewold ; Frank Tuyttens ; Daniel Berckmans
• 关键词：Ellipse fitting ; eYeNamic ; Image analysis ; Locomotion ; Pig
• 刊名：Livestock Science
• 出版年：January, 2014
• 年：2014
• 卷：159
• 期：Complete
• 页码：141-148
• 全文大小：1635 K

文摘

The purpose of this study was to investigate the feasibility and validity of an automated image processing method to detect the locomotion of pigs in a group housed environment and under experimental conditions. Topview video images were captured for forty piglets, housed ten per pen. On average, piglets had a weight of 27 kg (SD=4.4 kg) at the start of experiments and 40 kg (SD=6.5) at the end. Each pen was monitored by a topview CCD camera. The image analysis protocol to automatically quantify locomotion involved localising pigs through background subtraction and tracking them over a set period of time. To validate the accuracy of detecting pigs 鈥淚n Locomotion鈥?or 鈥淣ot In Locomotion鈥? they were compared to offline manually labelled behavioural data (鈥淚n Locomotion鈥?versus 鈥淣ot In Locomotion鈥?. This is the first study to show that the locomotion of pigs in a group can be determined using image analysis with an accuracy of 89.8%. Since locomotion is known to be associated with issues such as lameness, careful monitoring can give an accurate indication of the health and welfare of pigs.