A super-resolution reconstruction algorithm based on improved superoscillation

被引：0

作者：

Tong, Yi ^{[1
]}

Chen, Danni ^{[1
]}

Li, Heng ^{[1
]}

Cao, Bo ^{[1
]}

机构：

[1] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China

来源：

OPTICS FRONTIER ONLINE 2020: OPTICS IMAGING AND DISPLAY | 2020年 / 11571卷

关键词：

superoscillation; super-resolution; 4F system; image processing;

D O I：

10.1117/12.2576293

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Over the past decades, numerous efforts have been made to improve imaging resolution beyond the Abbe-Rayleigh limit. Optical super-oscillations, the phenomenon that the certain combination of band-limited functions could oscillate arbitrarily faster than its highest Fourier components, offer a promising route to optical super-resolution imaging. Here we developed a super-oscillation function filter based on super directivity array antenna, which is used in digital image processing. We demonstrate the ability of this method in recovering coherent diffraction limit images. It was proved that two holes separated by a distance about 0.7 times of the diffraction limit can be distinguished, and it is consistent with the capacity of the filter designed.

引用

页数：6

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