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Human body motion posture capturing method and system

A technology of human action and posture, applied in the field of motion capture, can solve the problems of low real-time performance and low capture accuracy of action and posture capture

Active Publication Date: 2020-03-27
EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the embodiments of the present application provide a method and system for capturing human body movements and postures, which are used to solve the problem of low real-time capture of human movements and postures in the prior art, which in turn leads to capture low precision

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  • Human body motion posture capturing method and system
  • Human body motion posture capturing method and system
  • Human body motion posture capturing method and system

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Embodiment 1

[0065] The present embodiment provides a method for capturing human body movements and gestures, characterized in that the method includes:

[0066] S110. Obtain the original data of each data collection node, and determine the spatial orientation and spatial position of each data collection node according to a complementary filtering algorithm;

[0067] Before the application obtains the original data of each data acquisition node, it is necessary to determine the data acquisition node. In order to reduce the number of sensors used, the application sets up 6 data acquisition nodes. The data acquisition nodes include: head node 1, trunk Node 2, the first forearm node 3, the second forearm node 4, the first leg node 5 and the second leg node 6; each data acquisition node is as figure 2 indicated by the mark.

[0068] After determining the data acquisition nodes, bind the data acquisition modules to each data acquisition node. Each data acquisition module includes a six-axis I...

Embodiment 2

[0122] The present embodiment provides a system for capturing human gestures, such as Image 6 As shown, the system includes: multiple data collection modules, a data collection module 51 and a terminal 52 .

[0123] Before the data acquisition module of the present application obtains the original data of each data acquisition node, the data acquisition node needs to be determined. In order to reduce the number of sensors used, the application sets 6 data acquisition nodes, and the data acquisition node includes: the head Node 1, torso node 2, first forearm node 3, second forearm node 4, first lower leg node 5 and second lower leg node 6; each data acquisition node is as follows figure 2 indicated by the circled mark.

[0124] After determining the data acquisition nodes, bind the data acquisition modules to each data acquisition node. Each data acquisition module includes a six-axis IMU and a three-axis magnetic sensor. Each IMU includes: a three-axis accelerometer and a t...

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Abstract

The invention provides a human body motion posture capturing method and system. The human body motion posture capturing method comprises the steps: determining the spatial orientation and spatial position of each data collection node based on the original data of each data collection node; determining spatial positions and spatial orientations of the joint nodes based on an IK algorithm; calibrating the spatial orientation of each data acquisition node and the spatial orientation of each joint node; correspondingly calibrating the spatial position and the spatial orientation of each joint node, the spatial position and the spatial orientation of the data acquisition node and the human body model; capturing action postures of a human body by utilizing the human body model; and calculating spatial positions and spatial orientations of the first joint node and the second joint node of the human body by utilizing an IK algorithm. Therefore, the resolving process of the IK algorithm is equivalent to the operation of converting the three-dimensional space into the operation in the joint space, and the operation dimension is reduced, so that the operation time can be reduced, and the real-time performance of motion posture capture can be improved, and the capture precision is improved.

Description

technical field [0001] The present application relates to the technical field of motion capture, and in particular to a method and system for capturing human motion and posture. Background technique [0002] Motion capture is used to record the process of object movement and simulate it into a digital model. In recent years, with the development of computer data acquisition and sensor technology, motion capture has been used in games, entertainment, sports, military, motion analysis, dance acquisition and virtual widely used in real technology. [0003] The inertial motion capture realizes the reproduction of the three-dimensional posture of the human body by wearing multiple inertial motion sensors. [0004] In the prior art, when human body posture is captured, it takes a long time to calculate the human body posture, which leads to low real-time performance of motion posture capture, which in turn leads to low capture accuracy. Contents of the invention [0005] Aimin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01
CPCG06F3/011
Inventor 刘谦曾强
Owner EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH
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