基于旋转螺旋屏的三维立体成像系统研究  

Research on volumetric 3D imaging system based on rotating helix screen

作　　者：樊琼剑[1,2] 李莉 沈春林[1] 龚华军[1] 赵敏[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016 [2]空军航空大学航空控制工程系,吉林长春130022 [3]北京宇航系统工程研究所数字化设计与仿真中心,北京100076

出　　处：《传感器与微系统》2009年第11期117-120,共4页Transducer and Microsystem Technologies

基　　金：国家"863"计划资助项目(2007AA01Z338);中国博士后科学基金资助项目(20080441051);江苏省博士后科研计划资助项目(0802014C);南京航空航天大学创新基金资助项目(Y0602-031)

摘　　要：针对前两代体三维(V3D)成像系统存在图像轮廓不够清晰问题,提出并实现了一种基于空间光调制器和双螺旋投影面的被动式旋转体扫描三维(RSV3D)成像系统。分析了系统的组成和工作原理,并详细讨论了组成系统的三大功能模块:成像空间、体素激活装置和V3D引擎的硬件与软件设计思想,并提出了多螺旋切片图形的重构算法和优化处理措施相结合的方案,以降低三维图像海量数据的传输和存储难题。实验结果显示:该系统可以产生高清晰度的空间三维图像,验证了该系统研制方案的可行性。For 3D images produced by the two former V3D imaging systems are unclarity, a high resolution, passive rotating sweep V3D imaging system based on digital micro-mirror device and double helically-curved screen is put forward and realized. The composition and principle of the system are introduced, and the hardware design and software algorithms of image space, voxel activation device and V3D engine are described in detail. Meanwhile, to solve the problems of mass-data transfer and storage of three dimension image, a plan combined algorithm for image reconstruction in multi-slice helical image and optimization process method is proposed. Experimental result shows that the system possesses the capacity to display complicate true 3D image with clear profile in real space on the base of comparison of experiment results, and the scheme is of favorable feasibility.

关 键 词：三维 旋转体扫描 图像质量 引擎 双螺旋屏 

分 类 号：TN141[电子电信—物理电子学]