Human motion capture device

Abstract

The invention relates to a human motion capture device which comprises motion measuring units, a motion parameter estimation unit, an initialization unit, a display estimation unit and an overall integration unit; the motion measuring units are attached on all the limbs of a human body and are used for measuring the motion data and the environmental data of all the limbs; the motion parameter estimation unit deducts the motion parameters and the environmental parameters of all the limbs, and when in deduction, a self-adaptive anti-interference three-dimensional angle estimation method is adopted to deduct the three-dimensional angle values of all the limbs; the initialization unit is used for receiving and integrating the motion parameters and the environmental parameters of all the limbs, and deducting the initial operation parameters of the human body motion capture device; the displacement estimation unit is used for receiving and integrating the motion parameters and the environmental parameters of all the limbs as well as the initial operation parameters of the human body motion capture device, and deducing the displacement of the human body relative to the ground; and the parameters and the displacement of the human body relative to the ground are finally integrated together by the overall integration unit, so that the position and the gesture of the overall motion of the human body are worked out and output.

Description

Technical field [0001] The invention relates to a human body motion capture device, a human body motion parameter estimation of each limb, an initialization method of the human body motion capture device, and a displacement estimation of the human body relative to the earth, belonging to the technical field of human body motion perception acquisition. Background technique [0002] Now, by perceiving and acquiring accurate human body posture and position movement information, it is possible to analyze existing problems and improve training based on the movement trajectory of each limb of the athlete. It can infer possible diseases based on changes in human gait, and it can be based on human movement information. Tracking establishes a high-level 3D game, which can build lifelike characters for digital movies and virtual worlds based on the tracking of human motion postures. However, the randomness and complexity of human movement and the diversity of the environment around the hum...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing motion capture technology based on camera array requires a dedicated laboratory, the application is limited by the site, there are problems of light and occlusion, the cost is extremely expensive, the amount of data is huge, and it is difficult to process in real time; and the existing motion capture technology based on micro sensors The measurement noise is large, and there is a system bias. Directly integrating and estimating the measurement data of the inertial sensor will result in a movement estimation offset. Distributed measurement cannot directly obtain the overall posture and position information of the human body, so the application of limited technical problems and technical challenges , the object of the present invention is to utilize adaptive sensor data fusion technology to estimate human body motion parameters, utilize the initialization technology of human body motion capture device and displacement estimation technology to fuse and estimate the attitude and position information of the overall motion of human body, and provide a kind of Portable Human Motion Capture Device

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