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Multiple-Particle Autofocusing Algorithm Using Axial Resolution and Morphological Analyses Based on Digital Holography

delete2025-04-28
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OA
AI
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Wei-Na Li
周毅 cover
周毅 (Yi Zhou)
J
Jiatai Chen
H
Hongjie Ou
谢
谢向生 (Xiangsheng Xie) *
DOI：10.3390/electronics14091789delete
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Abstract

Abstract

En 中文
We propose an autofocusing algorithm to obtain, relatively accurately, the 3D position of each particle, particularly its axial location, and particle number of a dense transparent particle solution via its hologram. First, morphological analyses and constrained intensity are used on raw reconstructed images to obtain information on candidate focused particles. Second, axial resolution is used to obtain the real focused particles. Based on the mean intensity and equivalent diameter of each candidate focused particle, all focused particles are eventually secured. Our proposed method can rapidly provide relatively accurate ground-truth axial positions to solve the autofocusing problem that occurs with dense particles.
Keywords:
digital holography
Fresnel diffraction
autofocusing method
axial resolution
particles

Journal

Electronics cover
Electronics
IF:
2.6
Papers:
9.6K
Citations:
4.7W

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No organization information available