| 条纹法实现高分辨率成像 |
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| 引用本文： | 王艳平,彭仁军,吴健,邓蓉.条纹法实现高分辨率成像[J].强激光与粒子束,2006,18(1):51-54. |
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| 作者姓名： | 王艳平 彭仁军 吴健 邓蓉 |
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| 作者单位： | 1. 电子科技大学 光电信息学院 激光雷达实验室, 成都 610054；2. 目标与环境光学特征国防科技重点实验室, 北京 100854 |
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| 基金项目： | 目标与环境光学特征国防科技重点实验室资助课题(51476030304DZ0201) |
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| 摘 要： | 研究了一种高分辨率成像的方法，该方法利用余弦条纹照射目标以获取目标更宽的频谱。条纹对目标的照射起到了对目标频谱的搬移作用，使光学系统截止频率外的一部分高频分量通过系统。利用多幅条纹照射目标并分别成像，各条纹空间频率相同而相位按照一定规律变化，综合处理照射条纹后获得的图像将叠加在一起的频谱分量分离开并恢复到相应的位置，经过反变换获得高分辨率的图像。通过计算机仿真验证了这种方法的可行性。
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| 关 键 词： | 余弦条纹 频谱 高分辨率 截止频率 |
| 文章编号： | 1001-4322(2006)01-0051-04 |
| 收稿时间： | 2005-06-10 |
| 修稿时间： | 2005-10-17 |
Superresolution imaging by the fringes |
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| WANG Yan-ping,PENG Ren-jun,WU Jian,DENG Rong.Superresolution imaging by the fringes[J].High Power Laser and Particle Beams,2006,18(1):51-54. |
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| Authors: | WANG Yan-ping PENG Ren-jun WU Jian DENG Rong |
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| Institution: | 1. Optoelectronic Information Department, University of Electronic Science and Technology of China, Chengdu 610054,China;2.National Key Laboratory of Optical Features of Target and Environment, Beijing 100854,China |
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| Abstract: | A method of super-resolution imaging is described,which utilizes cosine fringes to acquire more spatial frequency spectrum of the object.The spatial frequency of the object illuminated by the cosine fringes is shifted,thus a portion of high frequency components beyond the cutoff frequency could pass through the optical system.The image is achieved separately after illuminating many fringes,which has the same spatial frequency but different phase.Then the images are processed to separate the frequency components and reconstruct the original spectrum.Finally,the computer simulation demonstrates the feasibility of the new technique. |
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| Keywords: | Cosine fringe Spatial frequency spectrum Superresolution Cutoff frequency |
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