基于力反馈的桌面立体显示与交互系统研究  

Study on desktop stereoscopic display and interaction system based on force feedback

作　　者：姚晓永[1] 吴平东[1] 黄杰[1] 黄漫玲[2] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]北京政法职业学院安全防范系,北京100024

出　　处：《传感器与微系统》2013年第1期40-42,46,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(60674052;60274035)

摘　　要：针对人体对真实空间中三维立体虚拟图像的成像和直接交互问题,提出了包含虚拟立体成像和基于线绳的力反馈设备的立体交互系统设计方法。立体图像的产生方法是通过编程建立一个VC工程,实现了三维对象模型的导入和左右视差图像的产生;人手指末端位置的检测是通过电机的增量式光电编码器测量出线绳长度,进而利用线绳的空间几何关系求出的;根据手指末端位置与虚拟图像的位置关系,利用空间几何关系来合成线绳拉力。在系统中导入对象模型并且进行交互的实验表明:系统具有良好的成像效果和交互效果。Aiming at problems of three-dimensional（3D） stereoscopic imaging and direct interaction,a design method for the stereoscopic interaction system is proposed,containing virtual stereoscopic imaging and string-based force feedback devices.The method for stereoscopic image generating is to establish a VC project by programming and realize the importing of 3D object model and the generation of left and right parallax images.The detection of the finger end position is to measure the length of each string by incremental photo-electric encoder and calculate the position by the spatial geometric relationship of strings.The force composition is according to the geometrical relationship between the finger end and the virtual image.The experiment illustrates the system has good imaging and interactive effects.

关 键 词：立体图像 力反馈 增量式光电编码器 手指末端位置 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]