Deep Machine Learning System for Athletes

Hong Kong Univisual Intelligent Technology Limited (HKUIT) is founded by scholars and graduates of the University of Hong Kong. It applies Artificial Intelligence (AI) and vision sensing technologies to the sport industry. Prof. Wilton Fok is the co-founder of HKUIT. Prof. Fok is also the Director of the Sport Artificial Intelligence Laboratory of the University of Hong Kong, also the Assistant Dean and the Chief Lecturer of the Faculty of Engineering at the University. His team has created a Drowning Detection System for indoor swimming pools to monitor swimmers who may be in danger of drowning. The system can be adapted to posture correction for athletes to improve their sport performance.

Drowning Detection System protects swimmers

This Drowning Detection System has incorporated AI technology with cameras to identify human-like objects in water who have been immobile for a certain duration. Cameras are installed upon the ceiling, by the poolside and also under the water. Images of the postures of the swimmer will be captured by those cameras in different angles and transmitted to the graphics processing units (GPU) and the centralized console for data processing. Data such as arm-stroke, leg kicking, arm circulating frequency, arms and feet coordinating patterns, forward speed and amplitudes are collected for analysis in a computer at real time. When a human-like object becomes stale in the water, the Drowning Detection System is alerted and its audio and visual alarms will be triggered. Underwater image will display on the screen of the system. Lifeguards will be notified and he can use a tablet computer to identify where the potential drowning person is.

Applying Human Pose Estimation Technology in Sport

Currently, the system requires more data to achieve the best result. Because of sunlight reflection under the water, the AI needs data to learn and distinguish shadows. In addition, more swimming posture data from different swimmers are required to build a better analysis program for the swimming training system. With thousands or more image data for machine learning analysis, the computer can learn what is good swimming skill and what is bad. These devices have already been installed in the swimming pools of the Hong Kong University and two secondary schools in Hong Kong. Hopefully more local schools will adopt the technology.

AI golf coaching system

The next phase of Robocoach is to enable multi-players participating in a golf game and host competitions in the virtual world. Players will have more fun playing with friends in different locations.

Empowering sport activities by AI

Written by Ms. Florence Ip. Edited by: Dr. Kyle Wong

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