Beijing Noitom Technology Ltd.

Ruoli Dai

Haoyang Liu

Haotian Chen

Jinzhou Chen

Baojia Gui

Longwei Li

Peter Gauthier

A mixed system for capturing motions of an object and its use method is disclosed. The mixed system includes at least one inertial sensor module and at least one optical marker mounted on the object, and at least two optical cameras. Each inertial sensor module measures inertial information and spatial attitude information, and each optical camera captures image information of the at least one optical marker. Based on the collected information, a receiving processor respectively generates inertia-based position information and optics-based position information, and further integrates the above information to obtain position information of the object. Integration may involve assignments of different weights to the inertia-based position information and the optics-based position information based on respective measurement errors of the at least one optical marker and the at least one inertial sensor module. The inertia-based position information may be corrected based on biomechanical constraints and/or external constraints.

Mixed motion capture system and method

A multi-node motion measurement and analysis system comprises at least one motion measurement module and a receiver unit. The motion measurement module is bound to a hand-held sports appliance through an adjustable fixture or being bound to a human body. A binding position on the human body is rearrangeable based on different measurement requirements. The motion measurement module comprises a sensor module configured to measure information of acceleration, angular velocity and magnetic force, a first microprocessor module connected to the sensor module and configured to generate information of orientation, and a first RF module configured to receive the information of acceleration, angular velocity, magnetic force and orientation and transmit the received information to the receiver unit. The receiver unit generates motion information according to the information of acceleration, angular velocity, magnetic force and orientation, and calibrates the motion measurement module bound to different positions on the human body.

Multi-node motion measurement and analysis system

Growing community of inventors

Beijing, China

Ruoli Dai