基于生理视觉原理的立体视频重建技术研究

【作者】 陈贤； 张刚； 赵文吉； 左建章；

【机构】 首都师范大学教育部三维信息重点实验室； 中国测绘科学研究院；

【摘要】 本文在研究和分析了国内外三维信息技术的现状和发展的基础上,根据行业的实际需求,结合当前的科研项目,综合运用虚拟现实、计算机视觉、图像处理、多媒体等技术,研究了基于生理视觉原理的立体视频重建技术,并实现了立体视频系统。通过对场景的同步视频采集,给出了双视频数据同步影像对的连续提取算法,使用了实时纹理替换算法, 实现立体视频显示。建立并实现了立体视频显示系统,扩展了常规立体显示的方式,降低了立体视频显示的硬件设备依赖性。使用同步纹理影像对信息构建了立体显示缓冲模式,消除了由地表三维模型重建生成立体视频所需的繁琐手工劳动和大数据场景调度的负荷。实现了立体显示快速全局优化算法,并将同步方法运用到程序实现中, 提高了运算速度和效果。立体视频系统实现了场景三维立体显示的连续性,加快了三维立体模型显示的速度,减少了编辑数据模型和数据处理的工作量,使场景的立体视频显示变得非常便捷,对加快三维数字化城市建设和三维虚拟旅游起到了促进作用。该项技术已经应用于数字虚拟颐和园和虚拟历史博物馆项目中,取得了较好的应用效果。更多还原

【Abstract】 On the base of studying and making some manalyses about the status quo and the development of the three dimension information technology both the internal and the external,the author successed in both reconstructing the stereo video by the principle of physiological vision and developing the stereo video display system.AII of the above work is in the need of the practice in the domain and is by the synthesis of several technology ,such as virtual reality,computer vision ,the process of photo ,multimedia, and so on. By the way of taking samples of video in the same scene with time synchronization,the algorithm of processing continual video data of the twin vidicons is presented. Using the above algorithm which combines the algorithm of real time displacement, the stereo video display system can work. The stereo video display system has been realized successfully.The way of this thesis not only extends the mode of normal stereo display but also upgrades the independence of the hardware which is used in the stereo video display system. Stereo display buffer mode which is constructed by using the synchronized texture photo lessens mannul labor of constructing the earth’s surface three dimension model and great load of data translation. The global optimized algorithm of stereo display acceleration is made for upgrading the speed and efficiency in computation.The thread synchronization is used in the progress development also. The system of stereo video achieved continuous stereo video’display,improved the speed of 3D stereo display,reduced the load of data’s edit and process ,maked it convenent that scene had been displayed in stereo mode,advanced the 3D digital city and tour of virtual reality . The technology of this thesis has gain the good praise when it was used in the project of digital virtual summer palace and virtual cultural museum .更多还原