Frequency-domain diagonal extension imaging

被引：0

作者：

Shan Jiang ^{[1
,2
,3
]}

Meiling Guan ^{[1
]}

Jiamin Wu ^{[4
]}

Guocheng Fang ^{[5
]}

Xinzhu Xu ^{[1
]}

Dayong Jin ^{[2
,5
]}

Zhen Liu ^{[5
]}

Kebin Shi ^{[6
]}

Fan Bai ^{[7
]}

Shu Wang ^{[8
]}

Peng Xi ^{[1
,2
]}

机构：

[1] Peking University,College of Engineering,Department of Biomedical Engineering

[2] Southern University of Science and Technology China,Department of Biomedical Engineering

[3] Beijing Institute of Collaborative Innovation (BICI)

[4] Tsinghua University,Department of Automation

[5] University of Technology Sydney,Faculty of Science,Institute for Biomedical Materials & Devices (IBMD)

[6] Peking University,School of Physics

[7] Peking University,School of Life Sciences,Biodynamic Optical Imaging Center (BIOPIC)

[8] Peking University People's Hospital Breast Center

来源：

Advanced Photonics | 2020年 / 2卷 / 03期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

frequency domain; diagonal sampling; super-resolution;

D O I：

暂无

中图分类号：

TP391.41 []; TN386.5 [电荷耦合器件];

学科分类号：

080203 ; 0805 ; 080501 ; 080502 ; 080903 ;

摘要：

The pixel size of a charge-coupled device(CCD) camera plays a major role in the image resolution,and the square pixels are attributed to the physical anisotropy of the sampling frequency.We synthesize the high sampling frequency directions from multiple frames acquired with different angles to enhance the resolution by 1.4× over conventional CCD orthogonal sampling.To directly demonstrate the improvement of frequency-domain diagonal extension(FDDE) microscopy,lens-free microscopy is used,as its resolution is dominantly determined by the pixel size.We demonstrate the resolution enhancement with a mouse skin histological specimen and a clinical blood smear sample.Further,FDDE is extended to lens-based photography with an ISO 12233 resolution target.This method paves a new way for enhancing the image resolution for a variety of imaging techniques in which the resolution is primarily limited by the sampling pixel size,for example,microscopy,photography,and spectroscopy.

引用

页码：64 / 71

页数：8

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