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Several three-dimensional interactive virtual environment technology research

Author: LiuJianFeng
Tutor: PanZhiGengï¼›ZhangMingMin
School: Zhejiang University
Course: Computer Software and Theory
Keywords: Virtual Reality Human-Computer Interaction Three dimensional interaction Accelerometer Gesture Recognition Motion Capture
CLC: TP391.9
Type: Master's thesis
Year: 2010
Downloads: 347
Quote: 2
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Abstract


To provide a rich set of virtual reality systems , reliable and natural means of human-computer interaction and human-computer interaction in virtual reality field currently one of the problems to be solved . In this regard, this study applies to several three-dimensional virtual environment interaction techniques . Proposed a three-dimensional accelerometer -based gesture interaction technique , the first of the accelerometer input data for modeling , after a predefined standard gestures models matching the best match results obtained , the final completion of a specific interaction. Designed based on accelerometers , gyroscopes, magnetometers limb motion capture system , in this system was proposed based on Interactive 3D motion capture technology , with the sensor output data to reconstruct the main limb joints spatial coordinates and trajectory , and then interact with the virtual three-dimensional objects . Proposed a pressure sensor based on a three-dimensional interaction techniques , the use of pressure sensors to obtain user weight shift vector , in order to control the three-dimensional virtual incarnation of the movement. On this basis , the paper will accelerometer-based gesture recognition technology for interactive three-dimensional virtual digital Olympic museum prototype system , first create gestures - semantic mapping table , the training standard gestures , and finally the input gesture recognition, based on the identification results to complete interaction semantics. The experimental results show that this algorithm can quickly identify the user input gestures With this method the user can accurately complete the interaction. In addition, the article also based on pressure sensors , speech recognition technology in the virtual three-dimensional interactive driving simulation system, to achieve the user through a pressure sensor for throttle, braking and other vehicle operation , use voice commands to carry out systematic general control , and the system provides a wealth of interactive feedback. Experimental results show that the two three-dimensional interactive user subsystems interact received a more satisfactory results.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Computer simulation
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