High-resolution extraction of particle size via Fourier Ptychography

Shengfu Li; Yu Zhao; Guanghua Chen; Zhenxiong Luo; Yan Ye

doi:10.1117/12.2295689

15 November 2017 High-resolution extraction of particle size via Fourier Ptychography

Shengfu Li, Yu Zhao, Guanghua Chen, Zhenxiong Luo, Yan Ye

Proceedings Volume 10605, LIDAR Imaging Detection and Target Recognition 2017; 106053G (2017) https://doi.org/10.1117/12.2295689
Event: LIDAR Imaging Detection and Target Recognition 2017, 2017, Changchun, China

Abstract

This paper proposes a method which can extract the particle size information with a resolution beyond λ/NA. This is achieved by applying Fourier Ptychographic (FP) ideas to the present problem. In a typical FP imaging platform, a 2D LED array is used as light sources for angle-varied illuminations, a series of low-resolution images was taken by a full sequential scan of the array of LEDs. Here, we demonstrate the particle size information is extracted by turning on each single LED on a circle. The simulated results show that the proposed method can reduce the total number of images, without loss of reliability in the results.

Citation Download Citation

Shengfu Li, Yu Zhao, Guanghua Chen, Zhenxiong Luo, and Yan Ye "High-resolution extraction of particle size via Fourier Ptychography", Proc. SPIE 10605, LIDAR Imaging Detection and Target Recognition 2017, 106053G (15 November 2017); https://doi.org/10.1117/12.2295689

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