基于DMD投影技术及柱状透镜的自由立体显示系统的研究
发布时间：2018-07-18 10:19
【摘要】： 立体显示技术是一项多学科的综合技术,涉及电子、光学、计算机、摄影等领域的研究成果。其信息源的获取除景物的二维信息摄入外,还需探测各像素的深度信息,并以三维的形式显示出来,而现阶段的显示设备基本上只能显示二维平面信息或经透视处理的仿三维信息(如3D max、Solid Works、CAD等),给予观察者暗示的立体感觉。为了使显示的场景和物体具有真实的深度感觉,人们采用各种方法进行了尝试。特别是近十几年来,立体显示技术取得了超乎寻常的快速发展,并在教育、医学、建筑、军事、商业广告、工业产品设计等领域受到高度关注,应用前景广泛。深入研究和发展立体显示技术将会给人们的生产和生活带来显著的变革和深远的影响。其中的自由立体显示模式更有呵能大量取代现有的平面显示机制。 本文研究工作主要集中在光学原理探索、样机的研制、立体图像序列的获取与合成算法和对立体显示效果的量化评价这几个方面。取得的研究成果和创新点表现在: 1、在研究多种立体显示方法的光学原理并对其进行评价比较的基础上,提出了基于柱状透镜与DMD投影技术的自由立体显示系统解决方案。采用柱状透镜作为主要分光器件,在DMD投影屏幕前形成区域的视障以造成左右眼视差,获得立体效果。 2、研究了相应的立体图像序列的获取及合成算法。重点研究了双目视差、显示器像素和柱状透镜线数的对应关系.柱状透镜发散角度等因素对市体显示效果的影响,给出了理论公式。提出了一种基于倾斜柱状透镜的立体序列图合成算法。 3、在完成了系统样机之后,提出了一种使用照度计测量立体显示屏近场区域亮度分布的方法,对立体显示器的立体效果进行量化的评价,并采用这种方法对基于DMD投影的立体显示系统的两种不同的图像序列合成算法进行了测试和比较,给出了具体的测量值和结果。 论文最后对全文进行了总结,指出了研究工作尚待改进之处。对今后的的研究方向提出了建议。
[Abstract]:Stereoscopic display technology is a multi-disciplinary technology, which involves the research achievements in the fields of electronics, optics, computer, photography and so on. In addition to the two-dimensional information intake of the scene, it is also necessary to detect the depth information of each pixel and display it in three-dimensional form. At the present stage, the display equipment can only display two-dimensional plane information or three-dimensional information (such as 3D maxmaxid works CAD, etc.), which can give the observer a hint of stereoscopic sensation. In order to make the scene and object have real depth sense, people have tried various methods. Especially in the past ten years, stereoscopic display technology has made extraordinary rapid development, and has been highly concerned in the fields of education, medicine, architecture, military affairs, commercial advertising, industrial product design and so on. Further research and development of stereoscopic display technology will bring significant changes and profound effects to people's production and life. One of the free stereoscopic display mode can replace the existing plane display mechanism. This paper focuses on the exploration of optical principle, the development of prototype, the acquisition and synthesis algorithm of stereo image sequence and the quantitative evaluation of stereoscopic display effect. The research results and innovations are as follows: 1. On the basis of studying the optical principle of various stereoscopic display methods and evaluating and comparing them, Based on cylindrical lens and DMD projection technology, the solution of free stereoscopic display system is presented. The columnar lens is used as the main optical splitter to form the visual barrier in front of the DMD projection screen to cause the parallax of the left and right eyes and to obtain the stereoscopic effect. 2. The corresponding algorithms for the acquisition and synthesis of stereo image sequences are studied. The relationship among binocular parallax, display pixels and the number of cylindrical lens lines is studied. The influence of the divergence angle of cylindrical lens on the display effect of the market body is given, and the theoretical formula is given. This paper presents an algorithm of stereo sequence diagram synthesis based on tilted cylindrical lens. 3. After completing the prototype of the system, a method of measuring the luminance distribution in the near field region of the stereoscopic display screen by using illuminometer is presented. The stereoscopic effect of stereoscopic display is quantitatively evaluated, and two different image sequence synthesis algorithms based on DMD projection are tested and compared, and the specific measurement values and results are given. Finally, the thesis summarizes the whole paper and points out that the research work needs to be improved. Suggestions for the future research direction are put forward.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2009
【分类号】：TP391.41
本文编号：2131601
[Abstract]:Stereoscopic display technology is a multi-disciplinary technology, which involves the research achievements in the fields of electronics, optics, computer, photography and so on. In addition to the two-dimensional information intake of the scene, it is also necessary to detect the depth information of each pixel and display it in three-dimensional form. At the present stage, the display equipment can only display two-dimensional plane information or three-dimensional information (such as 3D maxmaxid works CAD, etc.), which can give the observer a hint of stereoscopic sensation. In order to make the scene and object have real depth sense, people have tried various methods. Especially in the past ten years, stereoscopic display technology has made extraordinary rapid development, and has been highly concerned in the fields of education, medicine, architecture, military affairs, commercial advertising, industrial product design and so on. Further research and development of stereoscopic display technology will bring significant changes and profound effects to people's production and life. One of the free stereoscopic display mode can replace the existing plane display mechanism. This paper focuses on the exploration of optical principle, the development of prototype, the acquisition and synthesis algorithm of stereo image sequence and the quantitative evaluation of stereoscopic display effect. The research results and innovations are as follows: 1. On the basis of studying the optical principle of various stereoscopic display methods and evaluating and comparing them, Based on cylindrical lens and DMD projection technology, the solution of free stereoscopic display system is presented. The columnar lens is used as the main optical splitter to form the visual barrier in front of the DMD projection screen to cause the parallax of the left and right eyes and to obtain the stereoscopic effect. 2. The corresponding algorithms for the acquisition and synthesis of stereo image sequences are studied. The relationship among binocular parallax, display pixels and the number of cylindrical lens lines is studied. The influence of the divergence angle of cylindrical lens on the display effect of the market body is given, and the theoretical formula is given. This paper presents an algorithm of stereo sequence diagram synthesis based on tilted cylindrical lens. 3. After completing the prototype of the system, a method of measuring the luminance distribution in the near field region of the stereoscopic display screen by using illuminometer is presented. The stereoscopic effect of stereoscopic display is quantitatively evaluated, and two different image sequence synthesis algorithms based on DMD projection are tested and compared, and the specific measurement values and results are given. Finally, the thesis summarizes the whole paper and points out that the research work needs to be improved. Suggestions for the future research direction are put forward.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2009
【分类号】：TP391.41
【引证文献】
相关会议论文 前1条
1 贾大功;张未冬;武立强;张红霞;张以谟;;全息三维显示技术及其发展[A];中国光学学会2010年光学大会论文集[C];2010年
相关硕士学位论文 前2条
1 张未冬;三维计算全息显示技术的研究[D];天津大学;2010年
2 杨世江;基于体扫描技术的立体显示物理引擎研究[D];华东师范大学;2012年
，本文编号：2131601
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