基于DMD的多元探测成像系统设计的几个问题  

Several Problems in Multi-element Detector Imaging System Design Based on Digital Micro-mirror Device

作　　者：丁晟[1,2] 张智诠[1] 

机构地区：[1]装甲兵工程学院控制工程系 [2]中国人民解放军73021部队

出　　处：《红外技术》2014年第6期457-462,共6页Infrared Technology

摘　　要：针对单像素相机压缩成像时对编码数据量和A/D转换精度要求较高的问题,对基于DMD的多元探测成像系统设计的几个问题进行了研究。介绍了"n对1"的多元探测压缩成像原理,该方法能在降低A/D转换精度要求的同时,由小阵列探测器实现高分辨成像;考虑到压缩成像及DMD控制的特点,重点研究了多元探测CS成像的编码数据和采样数据精度,并由仿真实验验证了掩膜基本编码单位和A/D转换精度对重构图像质量的影响。Due to the fact that single-pixel imaging with higher coded data quantity and A/D conversion accuracy, this paper focused on several problems in multi-element detector imaging system design based on digital micro-mirror device（DMD）. The‘n-to-1’ imaging principle was introduced first for lowering A/D conversion accuracy and realizing high-resolution imaging via low-resolution detector array. According to the characteristic of compressive imaging and control mode of DMD, the coded data and sampling data accuracy of multi-element detector compressive imaging were mainly studied. The simulation results illustrated the influence of mask basic encoding unit and A/D conversion accuracy on reconstruction image quality.

关 键 词：压缩传感 数字微镜 多元探测器 A/D转换精度 

分 类 号：TN214[电子电信—物理电子学]