The Study About The System Of The 3D Human Motion Tracking Based On VR

The Virtual Reality(VR) technology is the emerging technology which based on the foundation of information technology. It was widely used in many areas, such as the military, the medical service, mining, the entertainment and so on. Therefore, many countries are concentrate on the research of VR in recent years. As a very important part of VR, three-dimensional human body movement tracking system has significant meaning for the practice application of VR. The topic is supported by doctor startup fund of Liaoning Province and it is mainly focus on the pre-research process. The topic is tracking the human body's movement according to the measurement of space three-dimensional coordinates and also the topic concern about the computer processing method research of three-dimensional human body movement tracking information. We can build up good foundation for the practical research of three-dimensional human body movement tracking system.By using the real-time inputting technology, the spatial three-dimensional coordinates survey technology can put the object spatial dynamic information into the computer accurately. It is the foundation of the VR development. At the same time, the development expanded the computer application area. Also it can be a positive effect to accelerate the development of computer technology. This article uses the ultrasonic ranging principle, integrate monolithic integrated circuit technology, makes the spatial three dimensional coordinates measure equipment become reality.In this thesis, we introduced the measurement principle of spatial three-dimensional coordinates dynamic metering equipment; discussed in detail about the operation principle and characters of the ultrasonic wave launch, the receive, the enlargement, the filter, the comparison, the reshaping electric circuit and the monolithic. The thesis included structure framework, hardware schematic diagram, and the software flow chart of the whole system. Furthermore, the thesis contain introduction and discuss of three-dimensional human body modeling technology which list below:The first chapter introduced virtual reality technology as well as the latestdevelopment of the technology. Also it contains the statement about the research's objective and purpose.Second chapter introduced the principle and several adopted methods of three dimensional human body coordinates measurement. Followed by the comparison of the differences among the methods.Third chapter introduced in detail about uses the ultrasonic wave method to carry on the three dimensional human body coordinates survey the hardware circuit design.Fourth chapter system concerned about software design.Fifth chapter described three-dimensional human body modeling technology.Sixth chapter is conclusion.