裸眼立体显示技术的研究

发布时间：2018-07-03 14:16

本文选题：立体视觉 + 视差　；参考：《天津理工大学》2007年硕士论文

【摘要】： 图像显示器是人类接受外部信息的重要手段之一。而立体显示则能再现场景的三维信息,提供场景的更为全面、详实的信息,在医学、军事、广告艺术以及立体电视等领域有着广泛的应用前景。传统的立体图像显示需要佩带诸如偏振眼镜、互补色眼镜或者液晶眼镜之类的辅助工具,因此将人眼完全占有,人的眼睛除了观看屏幕之外,做其他与屏幕无关的工作都十分不便。因此,佩带眼镜的立体显示技术(包括立体头盔),尽管其立体显示效果特别优良,但在许多场合是不适用的。基于此,我们研究了基于柱透镜阵列的裸眼立体显示技术,即依据柱透镜阵列对光线的折射作用,结合数字图像处理技术,将包含立体信息的屏幕图像分离成左、右两个视像,分别提供给用户的双眼,经过大脑合成,使平面图像转化为具有纵深感的立体图像。裸眼立体显示技术无需佩带眼镜,用户在观看立体显示器的时候眼睛不受限制,是完全自由的,因此,可以同时进行除了观看显示器以外的其他工作,从而具有更大的灵活性和实用性。本文首先介绍立体视觉基础知识及相关理论。裸眼立体显示技术基于人类的双眼“视差”,即人眼睛的功能决定了立体视觉的形成。立体显示技术是结合了人本身参与的系统,显示器件其实只是完成立体视觉的部分功能,而人眼的生理功能完成剩余的工作。所以在第二章使用一定的篇幅来介绍人眼的立体视觉机制。本文的第三章从裸眼立体显示器的共性特点出发,结合立体显示的几何模型,分析了基于柱透镜阵列的使图像分离的几何关系,在此基础上,计算了光线分离的布局特征。在亚屏幕分区和视图分离物理特性研究的基础上,进一步计算了独立视区的位置。在光学原理研究的结论指导下,初步研制出原理样机。本文的第四章研究了裸眼立体显示器适用的图像格式及其变换方法,编写了静态立体对转换软件,以典型的立体对复合图像表示变换的效果,实验证实了设计方法的正确性。在上述各点中,有两点是本文的创新点: 1.把裸眼立体显示器的物理本质概括为分离和会聚两个过程;提出“亚屏幕”分区和虚拟屏幕的概念,这两个概念和“独立视区”解释了裸眼立体显示器的物理特性,具有指导意义; 2.提出和使用“动态装配法”用于立体显示液晶屏的装配工艺,不需要花费巨大的特种设备,以低廉的价格制备了试验设备,思路和方法具备借鉴意义。
[Abstract]:Image display is one of the important means for human to receive external information. Stereoscopic display can reproduce the three-dimensional information of the scene and provide more comprehensive and detailed information of the scene. It has a broad application prospect in the fields of medicine, military affairs, advertising art and stereoscopic television. Traditional stereoscopic images need to wear auxiliary tools such as polarizing glasses, complementary colored glasses or liquid crystal glasses, so the human eye is fully occupied, and the human eye, in addition to looking at the screen, It is inconvenient to do other work that is not related to the screen. Therefore, the stereoscopic display technology with glasses (including stereoscopic helmet) is not suitable for many occasions, although its stereoscopic display effect is particularly good. Based on this, we study the naked eye stereoscopic display technology based on cylindrical lens array, that is, according to the refraction effect of cylindrical lens array to light, combined with digital image processing technology, the screen image containing stereo information is separated into left and right images. Through brain synthesis, the plane image is transformed into a stereoscopic image with a sense of depth. The naked eye stereoscopic display technology does not need to wear glasses, the user's eyes are not restricted when viewing the stereoscopic display, and they are completely free, so they can do other work besides viewing the display at the same time. So it has more flexibility and practicability. This paper first introduces the basic knowledge of stereo vision and related theories. The technology of naked eye stereoscopic display is based on the parallax of human eyes, that is, the function of human eyes determines the formation of stereoscopic vision. Stereoscopic display technology is a combination of human participation in the system, display devices in fact only complete a part of the functions of stereo vision, while the human eye physiological function to complete the rest of the work. So in the second chapter, we use a certain space to introduce the stereo vision mechanism of human eyes. In the third chapter, based on the general characteristics of naked eye stereoscopic display and the geometric model of stereoscopic display, the geometric relationship of image separation based on cylindrical lens array is analyzed. On this basis, the layout characteristics of light separation are calculated. Based on the study of the physical properties of sub-screen partition and view separation, the position of independent view area is further calculated. Under the guidance of the conclusion of the optical principle research, the prototype of the principle is developed preliminarily. In the fourth chapter of this paper, the image format and its transformation method are studied, and the static stereo pair conversion software is written. The effect of the transformation is represented by typical stereoscopic images. The experimental results show that the design method is correct. Among the above points, there are two innovations in this paper: 1. The physical nature of the naked eye stereoscopic display is summarized as two processes of separation and convergence, and the concepts of "sub-screen" partition and virtual screen are proposed, which explain the physical properties of the naked eye stereoscopic display. Have guiding significance; 2. This paper puts forward and uses "dynamic assembly method" for the assembly process of stereoscopic display LCD screen. It does not need huge special equipment, and the test equipment is prepared at a low price. The ideas and methods have reference significance.
【学位授予单位】：天津理工大学
【学位级别】：硕士
【学位授予年份】：2007
【分类号】：TN27

【引证文献】