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Wednesday, June 28, 2017

Artificial intelligence and detection of lameness in dairy cattle.

Artificial intelligence and detection of lameness in dairy cattle will change dairy farming. An early detection method for cow lameness (hoof disease), a major disease of dairy cattle, has now been developed from images of cow gait with an accuracy of 99 percent or higher by applying human gait analysis. This technique allows early detection of lameness from cow gait, which was previously difficult. It is hoped that a revolution in dairy farming can be achieved through detailed observation by AI-powered image analysis. Dairy farmers are busy with routines such as cleaning cowsheds, milking, and feeding, so it's very difficult to determine the condition of cows. If this continues, they will remain too busy to ensure the quantity and quality of milk and dairy products. A group of researchers led by Professor YAGI Yasushi at the Institute of Scientific and Industrial Research, Osaka University, together with Professor NAKADA Ken at Rakuno Gakuen University, developed a technique for monitoring health of dairy cattle with high frequency and accuracy in the farmers' stead by using a camera and AI with the aim of realizing a smart cowhouse. Methods for finding lameness by detecting back arch had been studied, but that method was effective in detecting moderate to severe lameness. The researchers established a method for the early detection of lameness from cow gait images with an accuracy of 99% or higher by using their own human gait analysis technique. Specifically, this group waterproofed and dustproofed Microsoft Kinect, a camera-based sensor capable of measuring distance to an object, and set it in a cowshed at Rakuno Gakuen University. Based on the large number of cow gait images taken by this sensor, this group characterized cow gaits, detecting cows with lameness through machine learning. more