Pub Date : 1900-01-01DOI: 10.1364/aoa.2022.oth5b.3
Praveen Kumar, N. Nishchal, T. Omatsu, A. S. Rao
This paper presents a polarimetric approach to estimate phase response errors of a spatial light modulator and a method to apply corrections through computer-generated holograms that ensures the quality generation of structured beams.
{"title":"Optimization of spatial light modulator’s phase response through computer-generated hologram","authors":"Praveen Kumar, N. Nishchal, T. Omatsu, A. S. Rao","doi":"10.1364/aoa.2022.oth5b.3","DOIUrl":"https://doi.org/10.1364/aoa.2022.oth5b.3","url":null,"abstract":"This paper presents a polarimetric approach to estimate phase response errors of a spatial light modulator and a method to apply corrections through computer-generated holograms that ensures the quality generation of structured beams.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131674501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1364/cosi.2022.cw3b.2
Kwan Kit Lee, C. Gagatsos, S. Guha, A. Ashok
We exploit the quantum parameter estimation approach proposed by Personick [1] to develop a Bayesian adaptive sequential measurement scheme to estimate the number, brightness and location of point sources in a constellation. We demonstrate that the proposed measurement scheme outperforms the traditional diffraction-limited imaging in the deep sub-Rayleigh regime.
{"title":"Quantum-limited Optical Super-resolution Imaging of Multiple Point-sources","authors":"Kwan Kit Lee, C. Gagatsos, S. Guha, A. Ashok","doi":"10.1364/cosi.2022.cw3b.2","DOIUrl":"https://doi.org/10.1364/cosi.2022.cw3b.2","url":null,"abstract":"We exploit the quantum parameter estimation approach proposed by Personick [1] to develop a Bayesian adaptive sequential measurement scheme to estimate the number, brightness and location of point sources in a constellation. We demonstrate that the proposed measurement scheme outperforms the traditional diffraction-limited imaging in the deep sub-Rayleigh regime.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123256289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1364/cosi.2022.ctu4f.6
Alejandro Silva, M. Arocena, J. Alonso
We propose a method for sample XY-drift correction by means of feature detection and correlation analysis along with field-of-view extension for large sample images taken through a microscope with a motorized XY stage
{"title":"Field-of-view extension and XY-drift correction in microscopy for large samples","authors":"Alejandro Silva, M. Arocena, J. Alonso","doi":"10.1364/cosi.2022.ctu4f.6","DOIUrl":"https://doi.org/10.1364/cosi.2022.ctu4f.6","url":null,"abstract":"We propose a method for sample XY-drift correction by means of feature detection and correlation analysis along with field-of-view extension for large sample images taken through a microscope with a motorized XY stage","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122999290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1364/pcaop.2022.pth3f.2
K. Dai, E. Robertson, J. Wiley, Martyn Lemon, J. K. Miller, R. Watkins, E. Johnson
In this paper we demonstrate orbital angular momentum beams propagating through a highly turbid underwater environment. The measured impulse response indicates the potential of using OAM to increase the channel capacity in high turbidity.
{"title":"Impulse Response of OAM Beams Propagating Through Turbid Underwater Environment","authors":"K. Dai, E. Robertson, J. Wiley, Martyn Lemon, J. K. Miller, R. Watkins, E. Johnson","doi":"10.1364/pcaop.2022.pth3f.2","DOIUrl":"https://doi.org/10.1364/pcaop.2022.pth3f.2","url":null,"abstract":"In this paper we demonstrate orbital angular momentum beams propagating through a highly turbid underwater environment. The measured impulse response indicates the potential of using OAM to increase the channel capacity in high turbidity.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126571003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We propose a novel coherent imaging method for the 3D-reconstruction of nanomaterials from a single HRTEM micrograph. This method determines the thickness and depth maps from overlapping sub-patches within a micrograph’s absorption and phase contrast.
{"title":"TEM-based single-shot coherent 3D imaging","authors":"D. Balakrishnan, S. Chee, Michel Bosman, D. Loh","doi":"10.1364/3d.2022.jw5a.3","DOIUrl":"https://doi.org/10.1364/3d.2022.jw5a.3","url":null,"abstract":"We propose a novel coherent imaging method for the 3D-reconstruction of nanomaterials from a single HRTEM micrograph. This method determines the thickness and depth maps from overlapping sub-patches within a micrograph’s absorption and phase contrast.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116118002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1364/cosi.2022.cth3c.3
Ziyang Hu
We discuss the influence of overlapping parameter using Fermat spiral scan in a defocused beam ptychography configuration. It shows a high efficiency in exposure distribution and image reconstruction quality using extended ptychography iterative engine (ePIE).
{"title":"Step Size Influence on Defocused Beam Ptychography","authors":"Ziyang Hu","doi":"10.1364/cosi.2022.cth3c.3","DOIUrl":"https://doi.org/10.1364/cosi.2022.cth3c.3","url":null,"abstract":"We discuss the influence of overlapping parameter using Fermat spiral scan in a defocused beam ptychography configuration. It shows a high efficiency in exposure distribution and image reconstruction quality using extended ptychography iterative engine (ePIE).","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125133879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1364/cosi.2022.cf2c.3
Brandon Yushan Feng, Christopher A. Metzler
We propose a self-supervised learning-based framework for reconstructing images from partially unknown and non-linear measurements. We apply our technique, which is based on matching the distributions of real and simulated observations, to long-range Fourier Ptychography.
{"title":"Adversarial Sensing for Sub-Diffraction Imaging","authors":"Brandon Yushan Feng, Christopher A. Metzler","doi":"10.1364/cosi.2022.cf2c.3","DOIUrl":"https://doi.org/10.1364/cosi.2022.cf2c.3","url":null,"abstract":"We propose a self-supervised learning-based framework for reconstructing images from partially unknown and non-linear measurements. We apply our technique, which is based on matching the distributions of real and simulated observations, to long-range Fourier Ptychography.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122591204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1364/isa.2022.ith4d.3
Dawoon Jeong, Hansol Jang, Min Uk Jung, Chang-Seok Kim
Angular resolution variation with adaptive beam scanning of frequency-modulated continuous wave (FMCW) LiDAR was implemented using an acousto-optic deflector. Various beam scanning patterns were applied over 3 degrees of field of view.
{"title":"Angular Resolution Variable FMCW LiDAR with Acousto-Optic Deflector","authors":"Dawoon Jeong, Hansol Jang, Min Uk Jung, Chang-Seok Kim","doi":"10.1364/isa.2022.ith4d.3","DOIUrl":"https://doi.org/10.1364/isa.2022.ith4d.3","url":null,"abstract":"Angular resolution variation with adaptive beam scanning of frequency-modulated continuous wave (FMCW) LiDAR was implemented using an acousto-optic deflector. Various beam scanning patterns were applied over 3 degrees of field of view.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131399059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoyan Wang, Tianxu Xu, Yiwen Zhang, Dongye Xu, Dong An, Qiang Wang, Zhongqi Pan, Yang Yue
With the extracted facial contour from a ToF camera, we demonstrated a novel method to recognize whether a person is wearing a face mask and the mask type using artificial neural network, achieving 97.32% accuracy.
{"title":"3D Time-of-Flight Camera Based Face Mask Recognition Using Facial Contour and Artificial Neural Network","authors":"Xiaoyan Wang, Tianxu Xu, Yiwen Zhang, Dongye Xu, Dong An, Qiang Wang, Zhongqi Pan, Yang Yue","doi":"10.1364/3d.2022.jw2a.23","DOIUrl":"https://doi.org/10.1364/3d.2022.jw2a.23","url":null,"abstract":"With the extracted facial contour from a ToF camera, we demonstrated a novel method to recognize whether a person is wearing a face mask and the mask type using artificial neural network, achieving 97.32% accuracy.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132678891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1364/pcaop.2022.pw4f.5
R. Mahon, M. Ferraro, C. Moore, W. Rabinovich
Probability density functions are routinely applied to represent the variations expected on an optical beam that has propagated through the atmosphere. Here we look at irradiance data acquired on a 16 km range across the Chesapeake Bay.
{"title":"Insight to atmospheric turbulence through irradiance measurements","authors":"R. Mahon, M. Ferraro, C. Moore, W. Rabinovich","doi":"10.1364/pcaop.2022.pw4f.5","DOIUrl":"https://doi.org/10.1364/pcaop.2022.pw4f.5","url":null,"abstract":"Probability density functions are routinely applied to represent the variations expected on an optical beam that has propagated through the atmosphere. Here we look at irradiance data acquired on a 16 km range across the Chesapeake Bay.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132794926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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