Continuous optical zoom microscope with extended depth of field and 3D reconstruction

Abstract Microscope such as fluorescence microscope, confocal microscope and two-photon microscope plays an important role in life science, laser processing and other fields. However, most microscopes only have discrete zoom rates. In this paper, a continuous optical zoom microscope with extended de...

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Main Authors: Chao Liu, Zhao Jiang, Xin Wang, Yi Zheng, Yi-Wei Zheng, Qiong-Hua Wang
Format: Article
Language:English
Published: SpringerOpen 2022-09-01
Series:PhotoniX
Online Access:https://doi.org/10.1186/s43074-022-00066-0
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author Chao Liu
Zhao Jiang
Xin Wang
Yi Zheng
Yi-Wei Zheng
Qiong-Hua Wang
author_facet Chao Liu
Zhao Jiang
Xin Wang
Yi Zheng
Yi-Wei Zheng
Qiong-Hua Wang
author_sort Chao Liu
collection DOAJ
description Abstract Microscope such as fluorescence microscope, confocal microscope and two-photon microscope plays an important role in life science, laser processing and other fields. However, most microscopes only have discrete zoom rates. In this paper, a continuous optical zoom microscope with extended depth of field and 3D reconstruction is demonstrated for the first time. It consists of a zoom objective lens, a microscope holder, an adjustable three-dimensional object stage, an Abbe condenser and an LED light source. The zoom objective lens is composed of several liquid lenses and solid lenses. By adjusting the applied voltage to the liquid lens, the proposed microscope can achieve a large continuous magnification from 10? to 60?. Moreover, an improved shape from focus (SFF) algorithm and image fusion algorithm are designed for 3D reproduction. Based on the liquid lenses, the axial focusing position can be adjusted to obtain images with different depths, and then the extended depth of field and 3D reconstruction can be realized. Our experimental results demonstrate the feasibility of the proposed microscope. The proposed microscope is expected to be applied in the fields of pathological diagnosis, biological detection, etc.
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spelling doaj.art-a0793184b9d94d2b8becd6dd2665871e2022-12-22T04:03:00ZengSpringerOpenPhotoniX2662-19912022-09-013111810.1186/s43074-022-00066-0Continuous optical zoom microscope with extended depth of field and 3D reconstructionChao Liu0Zhao Jiang1Xin Wang2Yi Zheng3Yi-Wei Zheng4Qiong-Hua Wang5School of Instrumentation and Optoelectronic Engineering, Beihang UniversitySchool of Instrumentation and Optoelectronic Engineering, Beihang UniversitySchool of Instrumentation and Optoelectronic Engineering, Beihang UniversitySchool of Instrumentation and Optoelectronic Engineering, Beihang UniversitySchool of Instrumentation and Optoelectronic Engineering, Beihang UniversitySchool of Instrumentation and Optoelectronic Engineering, Beihang UniversityAbstract Microscope such as fluorescence microscope, confocal microscope and two-photon microscope plays an important role in life science, laser processing and other fields. However, most microscopes only have discrete zoom rates. In this paper, a continuous optical zoom microscope with extended depth of field and 3D reconstruction is demonstrated for the first time. It consists of a zoom objective lens, a microscope holder, an adjustable three-dimensional object stage, an Abbe condenser and an LED light source. The zoom objective lens is composed of several liquid lenses and solid lenses. By adjusting the applied voltage to the liquid lens, the proposed microscope can achieve a large continuous magnification from 10? to 60?. Moreover, an improved shape from focus (SFF) algorithm and image fusion algorithm are designed for 3D reproduction. Based on the liquid lenses, the axial focusing position can be adjusted to obtain images with different depths, and then the extended depth of field and 3D reconstruction can be realized. Our experimental results demonstrate the feasibility of the proposed microscope. The proposed microscope is expected to be applied in the fields of pathological diagnosis, biological detection, etc.https://doi.org/10.1186/s43074-022-00066-0
spellingShingle Chao Liu
Zhao Jiang
Xin Wang
Yi Zheng
Yi-Wei Zheng
Qiong-Hua Wang
Continuous optical zoom microscope with extended depth of field and 3D reconstruction
PhotoniX
title Continuous optical zoom microscope with extended depth of field and 3D reconstruction
title_full Continuous optical zoom microscope with extended depth of field and 3D reconstruction
title_fullStr Continuous optical zoom microscope with extended depth of field and 3D reconstruction
title_full_unstemmed Continuous optical zoom microscope with extended depth of field and 3D reconstruction
title_short Continuous optical zoom microscope with extended depth of field and 3D reconstruction
title_sort continuous optical zoom microscope with extended depth of field and 3d reconstruction
url https://doi.org/10.1186/s43074-022-00066-0
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AT xinwang continuousopticalzoommicroscopewithextendeddepthoffieldand3dreconstruction
AT yizheng continuousopticalzoommicroscopewithextendeddepthoffieldand3dreconstruction
AT yiweizheng continuousopticalzoommicroscopewithextendeddepthoffieldand3dreconstruction
AT qionghuawang continuousopticalzoommicroscopewithextendeddepthoffieldand3dreconstruction