Pub Date : 1900-01-01DOI: 10.1364/cosi.2022.cth4c.4
Ilya Reshetouski, Ryuichi Tadano, H. Oyaizu, Ryosuke Sawano, J. Murayama
Lensless imaging with diffractive masks suffers from strong wavelength and angular dependency of their point spread function. We demonstrate that substituting a diffractive mask with an equivalent refractive free-form surface helps to improve imaging quality.
{"title":"Migration from Diffractive to Refractive Mask for High Quality Lensless Imaging","authors":"Ilya Reshetouski, Ryuichi Tadano, H. Oyaizu, Ryosuke Sawano, J. Murayama","doi":"10.1364/cosi.2022.cth4c.4","DOIUrl":"https://doi.org/10.1364/cosi.2022.cth4c.4","url":null,"abstract":"Lensless imaging with diffractive masks suffers from strong wavelength and angular dependency of their point spread function. We demonstrate that substituting a diffractive mask with an equivalent refractive free-form surface helps to improve imaging quality.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130251968","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.cm1a.3
M. Rogalski, J. Winnik, J. Picazo-Bueno, P. Zdańkowski, V. Micó, M. Trusiak
We present a fast and robust algorithm for lensless microscopy object 4D tracking called the DarkTrack. We validate the tracking accuracy on the simulated datasets and show the experimental results of tracking live spermatozoids.
{"title":"Open-source Algorithm for Objects 4D Tracking in Lensless Digital In-line Holographic Microscopy","authors":"M. Rogalski, J. Winnik, J. Picazo-Bueno, P. Zdańkowski, V. Micó, M. Trusiak","doi":"10.1364/cosi.2022.cm1a.3","DOIUrl":"https://doi.org/10.1364/cosi.2022.cm1a.3","url":null,"abstract":"We present a fast and robust algorithm for lensless microscopy object 4D tracking called the DarkTrack. We validate the tracking accuracy on the simulated datasets and show the experimental results of tracking live spermatozoids.","PeriodicalId":286361,"journal":{"name":"Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131240004","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/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":"36 1","pages":"0"},"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":"103 1","pages":"0"},"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":"173 1","pages":"0"},"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":"12 1","pages":"0"},"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":"756 1","pages":"0"},"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":"15 1","pages":"0"},"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":"45 1","pages":"0"},"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":"70 1","pages":"0"},"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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：