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.