光学掩模实现几何超分辨成像
Geometric superresolution by using an optical mask
针对光学成像系统的空间分辨率问题，提出了基于实际CCD模型的采用在成像系统频谱面上放置光学编码掩模并结合解码算法以实现几何超分辨的方法。首先，建立了实际CCD模型，提出了解决CCD的像元尺寸和像元间距影响图像的空间分辨率问题的方法；然后，通过在成像系统的频谱面上放置光学编码掩模，建立成像系统模型，并对该模型做严格数学分析，建立了成像过程的数学模型。提出了将频谱编码掩模实现超分辨方法与解决实际CCD模型对图像空间分辨率退化问题的方法相结合，解决了CCD因欠采样造成的物频谱混叠和因像素尺寸非零而造成的低通效应问题。最后，对一维光学编码掩模方法进行仿真，结果表明：该方法能实现几何超分辨，与传统的超分辨方法相比，该方法的系统结构简单、易实现。
In this paper, in order to improve the spatial resolution of the optical imaging system, geometric superresolution method based on CCD practical model is proposed. Firstly, practical model of CCD is established and the effect of sampling with a CCD is analyzed. Secondly, the mathematical modeling of geometric superresolution, which combine an optical mask with process algorithm, is presented. Finally, simulation in one dimension is put forward. The result of simulation demonstrated the method which combine an optical mask with process algorithm can overcome the resolution limit due to the CCD. The new approach is much easier implementation than the conventional approach.
王洪庆、饶志涛、李俊涛、刘子伟、许廷发、刘晶丹
光电子技术电子技术应用工程基础科学
光学工程几何超分辨光学掩模频谱编码实际模型
Optical engineeringGeometric superresolutionOptical maskSpectrum encodingCCD practical model
王洪庆,饶志涛,李俊涛,刘子伟,许廷发,刘晶丹.光学掩模实现几何超分辨成像[EB/OL].(2013-09-03)[2025-08-23].http://www.paper.edu.cn/releasepaper/content/201309-36.点此复制
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