Dual Field Of View Of The Virtual Reality Display Technology Research

Based on Laboratory Virtual Reality, this paper carries out extensive and thorough studies on key technic of stereoscopic visual tour which include stereoscopic display technic, 3-Dgraphics rendering technic, buiding virtual scene technic. All of these technologies are also absolutely necessarily in any other kinds of VR system.At first, based on the principle of human's eye seeing , this paper introduces a Divi-Screen stereoscopic display method after analysing the structure and working principle of HMD. This method is attribute to stereoscopic scene arithmetic by Compounding two 2-D images. Simultaneously, the author confirm the final method of stereoscopic Projection by comparing several methods. Secondly, recuring to the developing tools-Java and the graphics API-Java3D, the author constitute a high resolution-coordinates, implement division between physical world and virtual world, put up coexistence to intercommunion physical world and virtual world. All of the work make "simulating a human in virtual world" become true . It also make computer human interaction more livingly and conveniently. Furthermore, this new View model is accord with The characteristics of object oriented programming that view platform can be independent of the virtual scene relatively in the case of conforming with the data structure which is introduced in this paper. In addition, using of the Groups of Four Elements in computer graphics attribute to the divi-screen stereoscopic display. It improved the efficiency of stereoscopic display when the field of viewing in virtual scene changed. Finally, this paper introduces the 3D graphics rendering algorithms. All of above make the stereoscopic visual tour possible.