基于CAVE的虚拟现实关键技术研究

Research on virtual reality key technology based on CAVE

虚拟现实技术发展迅速,已广泛应用于诸多领域,传统CAVE系统由于占地面积大、成本高、装调困难,难以推广和普及。因此,便携式CAVE系统的研究与开发对虚拟现实技术的普及与发展具有重要意义。针对此现状,根据便携式CAVE系统的特点,设计了目视光学系统,研究了投影图像的畸变矫正和随机点立体图的生成算法,搭建了基于目视光学系统调节的近距立体显示系统。设计并实施视觉舒适度的主观评估实验,探究近距显示引起的视疲劳程度与视差大小的关系,对基于目视光学系统调节的立体显示系统的视觉舒适度进行评估。该研究为便携式CAVE系统的研究提供了参考依据,对虚拟现实技术的发展和立体视觉舒适度的研究具有一定的实际意义。

The virtual reality technology developed rapidly, and has been widely used in many fields, but the traditionalCAVE system is difficult to promote and popularize due to the large floor space, high cost and difficult installation and adjust-ment, therefore, the research and development of the portable CAVE system has great significance to the popularization and de-velopment of the virtual reality technology. According to the features of the portable CAVE system, the visual optical system wasdesigned, the distortion correction of the projected image and random dot stereogram generation algorithm are studied, and theclose range stereoscopic display system based on visual optical system adjustment was built. The subjective evaluation experi-ment of the visual comfort degree was designed and implemented to explore the relationship between the visual fatigue degreeand parallax caused by the close range display. The visual comfort degree of the stereoscopic display system based on visual opti-cal system was assessed. This technology provides a reference foundation for the study of the portable CAVE system, and has acertain practical significance to the development of the virtual reality technology and the study of the stereoscopic visual comfortdegree.