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.