15 November 2017 High-resolution extraction of particle size via Fourier Ptychography
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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.
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Shengfu Li, Yu Zhao, Guanghua Chen, Zhenxiong Luo, 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); doi: 10.1117/12.2295689; https://doi.org/10.1117/12.2295689
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