title: Automatic Recognition of Aggressive Behavior in Pigs Using a Kinect Depth Sensor.
abstract: Aggression among pigs adversely affects economic returns and animal welfare in intensive pigsties. In this study, we developed a non-invasive, inexpensive, automatic monitoring prototype system that uses a Kinect depth sensor to recognize aggressive behavior in a commercial pigpen. The method begins by extracting activity features from the Kinect depth information obtained in a pigsty. The detection and classification module, which employs two binary-classifier support vector machines in a hierarchical manner, detects aggressive activity, and classifies it into aggressive sub-types such as head-to-head (or body) knocking and chasing. Our experimental results showed that this method is effective for detecting aggressive pig behaviors in terms of both cost-effectiveness (using a low-cost Kinect depth sensor) and accuracy (detection and classification accuracies over 95.7% and 90.2%, respectively), either as a standalone solution or to complement existing methods.
authors.affiliation: Department of Computer and Information Science, Korea University, Sejong Campus, Sejong City 30019, Korea. eastwest9@korea.ac.kr.
authors.forename: Jonguk
authors.initials: J
authors.lastname: Lee
authors.affiliation: Ctrip Co., 99 Fu Quan Road, IT Security Center, Shanghai 200335, China. jinlong823@korea.ac.kr.
authors.forename: Long
authors.initials: L
authors.lastname: Jin
authors.affiliation: Department of Computer and Information Science, Korea University, Sejong Campus, Sejong City 30019, Korea. dhpark@korea.ac.kr.
authors.forename: Daihee
authors.initials: D
authors.lastname: Park
authors.affiliation: Department of Computer and Information Science, Korea University, Sejong Campus, Sejong City 30019, Korea. ychungy@korea.ac.kr.
authors.forename: Yongwha
authors.initials: Y
authors.lastname: Chung
mesh_terms: D000374:Aggression; D000822:Animal Husbandry; D000818:Animals; D015374:Biosensing Techniques; D006257:Head; D060388:Support Vector Machine; D034421:Sus scrofa; D013552:Swine
keywords: Kinect depth sensor; pig aggression recognition; support vector machine