Golay3稀疏孔径光学系统调制传递函数分析和成像研究  

The modulation transfer function analysis and imaging studies of Golay3 optical system

作　　者：王福亮[1,2] 沈婷婷[1,2] 吴泉英[2] 钱霖[3] 范君柳[2] 

机构地区：[1]苏州大学信息光学研究所,苏州215006 [2]苏州科技学院数理学院,苏州215009 [3]苏州大学物理科学与技术学院,苏州215006

出　　处：《激光杂志》2012年第1期33-35,共3页Laser Journal

基　　金：江苏高校优势学科建设工程资助;江苏省自然科学基金项目(BK2009129);江苏省"333"人才工程项目;江苏省六大人才高峰项目资助

摘　　要：给出Golay3稀疏孔径光学系统的光瞳结构,分析其调制传递函数(MTF)特点。对不同填充因子的Golay3稀疏孔径光学系统模拟成像,并用几何均值滤波进行图像复原,以相关系数评价模拟成像质量和图像复原效果。结果表明:模拟成像和图像复原结果与调制传递函数分析结果一致;经几何均值滤波后,图像质量得到改善:图像复原效果随填充因子增大而提高。The pupil of Golay3 sparse aperture optical system was presented and the features of its corresponding Modulation Transfer Function（MTF） were revealed.The imaging simulation with noise was implemented through Golay3 sparse aperture optical system with different fill factors.Then the noisy images were restored by geometric mean filter（GMG）.The image restoration effect was evaluated by correlation coefficient.The results indicated that the simulation imaging and images restoration accord with MTF analysis;the image restoration was effective and the quality of restored images was improved along with the raised fill factor.

关 键 词：应用光学 稀疏孔径 调制传递函数 图像复原 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]