Human motion capture three dimensional playback system and method thereof

A technology for human motion and three-dimensional reproduction, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as the complexity of the motion acquisition system, and achieve the effects of easy use, strong practical value and application prospects, and small size

Inactive Publication Date: 2009-11-18
JIANGSU ZHIHAI ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overall motion acquisition system is complicated by the use of ultrasonic sensors and inertial sensors such as accelerometers and gyroscopes

Method used

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  • Human motion capture three dimensional playback system and method thereof
  • Human motion capture three dimensional playback system and method thereof
  • Human motion capture three dimensional playback system and method thereof

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Experimental program
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Embodiment approach

[0038] The first embodiment of the present invention, such as figure 2 As shown, the micro sensor motion measurement module 110 is composed of several micro sensor units, several ultrasonic distance measuring units and one or several control units. The miniature sensor unit can only use a miniature inertial sensor, that is, a three-dimensional acceleration sensor and a three-dimensional gyroscope, and a magnetometer can also be added if necessary. The ultrasonic ranging unit consists of a time-precisely synchronized transmitter and receiver placed on two parts of the body (such as chest and upper arm, chest and head, chest and thigh, etc.). The time difference between transmission and reception can accurately calculate the distance between two limbs. If the ultrasonic frequency is 40k, the measurement accuracy can reach 2 mm. This can be used to calibrate the relative distance between limbs.

[0039] The miniature sensor unit and the ultrasonic distance measuring unit can ...

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Abstract

The invention discloses a human motion capture three dimensional playback system and a method thereof. The system is characterized in that the system comprises a human motion capture subsystem and a human motion playback subsystem; the human motion capture subsystem is composed of a microsensor motion measuring module and a motion parameter estimating module; the microsensor motion measuring module measures corresponding body motion data by a plurality of microsensor units attached to each limbs and trunk of human body respectively, and the motion parameter estimating module fuses microsensordata of different types of each microsensor unit and deduces the mass motion of human body; the human motion playback subsystem is used for receiving human mass motion parameters deduced by the humanmotion capture subsystem. The invention has the advantages of simple structure, high precision, low cost, small volume, low power consumption and convenient usage, has the characteristics of portability and real-time, has wide application in numerous fields and has comparatively strong practical value and application prospect.

Description

technical field [0001] The invention relates to a human body motion capture three-dimensional reproduction system and a method thereof, and belongs to the technical field of human body motion perception acquisition. technical background [0002] Now, through the accurate acquisition and analysis of the posture and motion information of the human body, possible diseases can be deduced according to the change of gait; the problem can be analyzed according to the trajectory of the athlete's body and limbs when the athlete takes off and hits the ball, so as to improve training ; Be able to accurately track posture and movement, understand body language, establish high-level human-computer interaction for games and simulation training, and build lifelike characters for digital movies and virtual worlds. However, due to the arbitrariness and complexity of human motion, as well as the diversity of the surrounding environment where the human body is located, great challenges have be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/11
Inventor 吴健康
Owner JIANGSU ZHIHAI ELECTRONICS TECH
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