Human body posture motion capture algorithm based on heterogeneous data fusion

A technology of human body posture and heterogeneous data, which is applied in the input/output process of data processing, electrical digital data processing, calculation, etc., and can solve problems such as poor controllability and low real-time performance

Inactive Publication Date: 2018-12-14
DALIAN UNIV OF TECH
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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the existing motion capture techn

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  • Human body posture motion capture algorithm based on heterogeneous data fusion
  • Human body posture motion capture algorithm based on heterogeneous data fusion
  • Human body posture motion capture algorithm based on heterogeneous data fusion

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Embodiment Construction

[0021] The implementation examples of the present invention will be described below in conjunction with the accompanying drawings, and it should be noted that the preferred implementation examples described here are only used to explain the present invention, not to limit it.

[0022] The process of human motion can be mainly expressed as the relationship between the displacement of relative space and the attitude angle of the relative motion between bones. The displacement of relative space is mainly expressed as the motion displacement vector of the reference root node in space, and the motion of other nodes is It can be obtained by taking it as a reference object and performing relative angle changes. Therefore, in the system, the main feature quantities are the two vectors of motion displacement and motion angle. In this implementation example, the calculation of these two vectors is placed in the sensor node, and the sensor’s original Information is received and processed...

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Abstract

The invention discloses a human body posture motion capture algorithm based on heterogeneous data fusion. The algorithm comprises the following steps: (1) acquiring human body motion data by using a plurality of sensor node posture acquisition modules fixed at various feature parts of the human body, each sensor node comprising a three-axis accelerometer, a three-axis gyroscope and a three-axis geomagnetometer; (2) modeling signals of the accelerometers, the gyroscopes and the geomagnetometers respectively, and filtering and converting the signals; (3) calculating displacement rotation features in a three-dimensional space by using a complementary Kalman filter fusion algorithm, calculating the positions of limbs relative to the space in combination with the spatial displacement and rotation features, and mapping the calculated feature parameters to the corresponding limbs to drive the motion of the body in real time. The invention aims to develop an accurate and efficient multi-sensordata fusion algorithm to solve the problems of low precision, response lag and the like in the conventional inertial motion capture, and to provide some reference for the development of related fields.

Description

technical field [0001] The present invention relates to multiple fields, specifically, it is an application field in which multiple disciplines and technologies intersect and combine, involving electronics, communication, control, computer graphics, ergonomics, navigation and other disciplines. It is a kind of efficient human-computer interaction method constructed with micro-electromechanical inertial components. It is a new research hotspot in the field of human-computer interaction. Background technique [0002] Motion capture technology refers to the collection and processing of the experimenter's body movement data and even rich facial expression data, and using these body movement or facial expression data to drive a virtual three-dimensional human body model to realize the simulation of human movement. Motion capture technology mainly refers to the use of computer-aided, comprehensive motion computer graphics, electronics, ergonomics, optics, mechanics and other tech...

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Application Information

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IPC IPC(8): G01C19/00G01C21/16G06F3/0346G06F3/01G06K9/00G06K9/62
CPCG06F3/011G06F3/0346G01C19/00G01C21/16G06F2218/04G06F18/251
Inventor 李孝辉王哲龙
Owner DALIAN UNIV OF TECH
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