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Wave-front coded super-resolution imaging technique
其他题名波前编码超分辨成像技术
Zhao, Hui1; Wei, Jingxuan2; Pang, Zhihai1; Liu, Meiying1
作者部门空间光学应用研究室
2016-04-25
发表期刊Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN10072276
卷号45期号:4
产权排序1
摘要Wave;front coding is a classical computational imaging technique and famous for its capability in extending the depth of focus (DOF) of incoherent imaging system. In fact, besides the DOF extension, this technique has the potentials in realizing super;resolution imaging, which is rare to be investigated in existing literatures. On the one hand, the introduction of phase mask makes defocus invariance of optical transfer function (OTF) possible and the dramatic decrease of modulus of OTF alleviates the aliasing effect owned by most digital imaging systems. In this case, a better image data suitable for super;resolution imaging could be provided. On the other hand, the prominent expansion of point spread function (PSF) allows us to obtain the real sampled PSF corresponding to any specific pitch size in a digital way using the ideal continuous optical PSF whose sampling interval could be considered as unlimitedly small. Therefore, based on these two characteristics, an amplification based single image super;resolution reconstruction algorithm was especially designed for wave;front coded imaging system and an experimental prototype camera has been fabricated to verify the effectiveness of the algorithm. The results demonstrate that the extended DOF which is more than 20 times original DOF has been obtained and at least 3X super;resolution reconstruction effect could be achieved. Besides that, the quality of reconstructed image approaches the diffraction limited level. © 2016, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
关键词Image Processing Image Resolution Imaging Systems Imaging Techniques Light Polarization Optical Design Optical Resolving Power Optical Transfer Function Wavefronts
DOI10.3788/IRLA201645.0422003
收录类别EI
语种中文
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/28269
专题空间光学技术研究室
作者单位1.Space Optics Lab Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
2.School of Computer Science and Technology, Xidian University, Xi'an; 710071, China
推荐引用方式
GB/T 7714
Zhao, Hui,Wei, Jingxuan,Pang, Zhihai,et al. Wave-front coded super-resolution imaging technique[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2016,45(4).
APA Zhao, Hui,Wei, Jingxuan,Pang, Zhihai,&Liu, Meiying.(2016).Wave-front coded super-resolution imaging technique.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,45(4).
MLA Zhao, Hui,et al."Wave-front coded super-resolution imaging technique".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 45.4(2016).
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