Wing Chun Meets 3D Vision: Orbbec Brings Tech Edge to International Wing Chun Championship

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The thunderous crack of fists striking wooden training dummies echoed through Foshan’s competition hall as nearly 4,000 Wing Chun practitioners from across the globe prepared for battle. But this wasn’t just any martial arts tournament—sleek 3D cameras mounted around the arena watched every move, ready to judge with algorithmic precision what human eyes might miss.The 2025 International Wing Chun Championship was held in Foshan, Guangdong, China, attracting 218 teams from around the world. The event adopted the “Intelligent Kung Fu Stake” power assessment system equipped with the Orbbec Femto Bolt 3D camera, which accurately captures athletes’ movements with scientific accuracy to provide impartial scoring for judges, while bringing cutting-edge technology to the traditional martial arts arena.The Femto Bolt, co-developed by Orbbec and Microsoft, is an advanced iToF 3D camera officially recommended by Microsoft as the ideal replacement for the Azure Kinect DK. Offering the same performance and user experience as the Azure Kinect DK, it also delivers enhanced color reproduction, calibration, and timestamp synchronization, all in a smaller, more easily integrated form factor. Since last year, the International Wing Chun Championship has fully transitioned to using the Femto Bolt in place of the Azure Kinect DK.

 

3D Vision Brings Enables Fair, Evidence-Based Scoring

In Wing Chun competitions, punch power, speed, angle, and accuracy are all key scoring criteria— elements that have traditionally relied on human judgment alone. . Now, leveraging computer vision technology, the Femto Bolt enables real-time tracking of athletes’ movement trajectories and overall posture. Its built-in human skeleton tracking algorithm, developed on a deep learning framework and powered by AI, precisely “maps” each athlete’s skeleton to capture scoring points in real time.

Operating at a high frame rate of 30 fps, the Femto Bolt records depth data while integrating depth images, RGB images, and inertial sensing for multimodal analysis. This enables fast, real-time motion feedback and interaction, allowing the system to respond instantly to every move and providing judges with objective, professional scoring support.

 

 

Building a Scientific Competition and Training System

The Femto Bolt not only captures athletes’ two-dimensional visual information during competition, but its high-resolution depth data also precisely measures and analyzes the relative position and distance of limbs in three-dimensionalspace, enabling a more detailed collection of movement nuances. It supports 4K RGB high-resolution output with HDR capability, enhancing the system’s ability to interpret actions, reducing misidentification rates, and significantly improving data reliability.

Following the competition, this rich, standardized motion data serves a dual purpose: building a more scientific competition evaluation system, while also producing instructional video courses that provids Wing Chun athletes with intuitive, efficient training support.

Beyond martial arts, the Orbbec Femto Bolt has been successfully deployed in a variety of human–computer interaction scenarios. It has partnered with companies such as Geeklight, Scatter, and Moverse to explore creative motion-sensing solutions, and collaborated with Blanidas to develop the world’s first AI evaluation system for medical cleaning operations. With its high-quality 3D sensing capabilities, the Femto Bolt is also well-suited for applications including volumetric measurement, medical imaging, and collaborative robotic arms.

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