Automated gait classification has traditionally been studied using horse-mounted sensors. However, smartphone-based sensors are more accessible, but the performance of gait classification models using data from such sensors has not been widely known or accessible. In this study, we performed horse gait classification using deep learning models and data from mobile phone sensors located in the rider’s pocket. We gathered data from 17 horses and 14 riders. The data were gathered simultaneously from movement sensors in a mobile phone located in the rider’s pocket and a gait classification system based on four wearable sensors attached to the horse’s limbs. With this efficient approach to acquire labelled data, we trained a Bi-LSTM model for gait classification. The only input to the model was a 50 Hz signal from the phone’s accelerometer and gyroscope that was rotated to the horse’s frame of reference. We demonstrate that sensor data from mobile phones can be used to classify the five gaits of the Icelandic horse with up to 94.4% accuracy. The result suggests that horse riding activities can be studied at a large scale using mobile phones to gather data on gaits. While our study showed that mobile phone sensors could be effective for gait classification, there are still some limitations that need to be addressed in future research. For example, further studies could explore the effects of different riding styles or equipment on gait classification accuracy or investigate ways to minimize the influence of factors such as phone placement. By addressing these questions, we can continue to improve our understanding of horse gait and its role in horse riding activities.
In this study, we perform horse gait classification using mobile phone sensors located in the rider’s pocket. We train a classifier using data obtained simultaneously from a mobile phone and a gait label acquired from a device based on four wearable sensors attached to a horse’s limbs. With this efficient approach to acquire labelled data, we train a gait classification model and demonstrate that data from mobile phones can be used to classify the five gaits of the Icelandic horse with up to 98% accuracy. The result suggests that horseriding activities can be studied at a large scale using mobile phones to gather data on gaits.
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