Pub Date : 2019-06-24DOI: 10.1364/COSI.2019.JW2A.3
A. Pastuszczak, K. Czajkowski, R. Kotyński
Discrete cosine transform elements are highly efficient sampling patterns for compressive single-pixel video imaging. We discuss the influence of the ordering of these patterns on the quality of the reconstruction of a moving scene.
{"title":"Single-pixel video imaging with DCT sampling","authors":"A. Pastuszczak, K. Czajkowski, R. Kotyński","doi":"10.1364/COSI.2019.JW2A.3","DOIUrl":"https://doi.org/10.1364/COSI.2019.JW2A.3","url":null,"abstract":"Discrete cosine transform elements are highly efficient sampling patterns for compressive single-pixel video imaging. We discuss the influence of the ordering of these patterns on the quality of the reconstruction of a moving scene.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132920304","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 : 2019-06-24DOI: 10.1364/ISA.2019.ITH1B.3
O. Bimber, Indrajit Kurmi
A sandwich of three 300μm PMMA layers enables large and flexible short-distance optical sensors.While two layers are wavelength selective luminescent concentrators, the third layer is an optical Soller collimator realized by X-ray lithography.
{"title":"A 1mm Thin-Film Short-Distance Optical Sensor","authors":"O. Bimber, Indrajit Kurmi","doi":"10.1364/ISA.2019.ITH1B.3","DOIUrl":"https://doi.org/10.1364/ISA.2019.ITH1B.3","url":null,"abstract":"A sandwich of three 300μm PMMA layers enables large and flexible short-distance optical sensors.While two layers are wavelength selective luminescent concentrators, the third layer is an optical Soller collimator realized by X-ray lithography.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133029355","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 : 2019-06-24DOI: 10.1364/PCAOP.2019.PTH4C.5
B. Wauer, Qing Wang
The refractive structure parameter (Cn2) are sensitive to the various formulations of the refractive index (n). The small differences in Cn2 may result in measurable difference in the high energy laser weapon performance.
{"title":"Sensitivity of Cn2 in the Marine Environment to Different Empirical Refractive Index Equations","authors":"B. Wauer, Qing Wang","doi":"10.1364/PCAOP.2019.PTH4C.5","DOIUrl":"https://doi.org/10.1364/PCAOP.2019.PTH4C.5","url":null,"abstract":"The refractive structure parameter (Cn2) are sensitive to the various formulations of the refractive index (n). The small differences in Cn2 may result in measurable difference in the high energy laser weapon performance.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132097277","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 : 2019-06-24DOI: 10.1364/ISA.2019.ITH2B.1
A. Dubois
Advances in optical coherence tomography (OCT) for application in dermatology are reported. Full-field OCT and line-field OCT are compared in terms of spatial resolution, penetration and acquisition rate. In vivo imaging of skin lesions is demonstrated with good similarity to histology.
{"title":"High-resolution optical coherence tomography Application in dermatology","authors":"A. Dubois","doi":"10.1364/ISA.2019.ITH2B.1","DOIUrl":"https://doi.org/10.1364/ISA.2019.ITH2B.1","url":null,"abstract":"Advances in optical coherence tomography (OCT) for application in dermatology are reported. Full-field OCT and line-field OCT are compared in terms of spatial resolution, penetration and acquisition rate. In vivo imaging of skin lesions is demonstrated with good similarity to histology.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"357 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133103536","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 : 2019-06-24DOI: 10.1364/COSI.2019.CTH2A.2
Fengqiang Li, F. Willomitzer, Prasanna V. Rangarajan, O. Cossairt
We propose a novel time-of-flight imaging technique with GHz modulation frequencies using a regular CCD/CMOS sensor as the detector. Our proposed system can provide sub-mm depth resolution and megapixel level lateral resolution.
{"title":"Mega-pixel time-of-flight imager with GHz modulation frequencies","authors":"Fengqiang Li, F. Willomitzer, Prasanna V. Rangarajan, O. Cossairt","doi":"10.1364/COSI.2019.CTH2A.2","DOIUrl":"https://doi.org/10.1364/COSI.2019.CTH2A.2","url":null,"abstract":"We propose a novel time-of-flight imaging technique with GHz modulation frequencies using a regular CCD/CMOS sensor as the detector. Our proposed system can provide sub-mm depth resolution and megapixel level lateral resolution.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134459230","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 : 2019-06-24DOI: 10.1364/COSI.2019.JW2A.47
Douglas E. Thornton, M. Spencer, Christopher A. Rice, G. Perram
We experimentally measure the heterodyne mixing efficiency of a digital holography system using two separate calculations. The results show each calculation was within 4% of the expected value of 32.2%.
{"title":"Heterodyne Mixing Efficiency of a Digital Holography System","authors":"Douglas E. Thornton, M. Spencer, Christopher A. Rice, G. Perram","doi":"10.1364/COSI.2019.JW2A.47","DOIUrl":"https://doi.org/10.1364/COSI.2019.JW2A.47","url":null,"abstract":"We experimentally measure the heterodyne mixing efficiency of a digital holography system using two separate calculations. The results show each calculation was within 4% of the expected value of 32.2%.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124193083","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 : 2019-06-24DOI: 10.1364/COSI.2019.CW3A.4
Tomas Aidukas, P. C. Konda, Jonathan M. Taylor, A. Harvey
We demonstrate aperture-synthetic diffracted field measurement using multiple mutually incoherent cameras in Fourier ptychography to provide a scaleable increase in data acquisition bandwidth. Our nine-camera system enables an order of magnitude improvement in image acquisition speed.
{"title":"Multi-camera Fourier Ptychographic Microscopy","authors":"Tomas Aidukas, P. C. Konda, Jonathan M. Taylor, A. Harvey","doi":"10.1364/COSI.2019.CW3A.4","DOIUrl":"https://doi.org/10.1364/COSI.2019.CW3A.4","url":null,"abstract":"We demonstrate aperture-synthetic diffracted field measurement using multiple mutually incoherent cameras in Fourier ptychography to provide a scaleable increase in data acquisition bandwidth. Our nine-camera system enables an order of magnitude improvement in image acquisition speed.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115008335","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 : 2019-06-24DOI: 10.1364/COSI.2019.JW2A.40
Awakash Dixit, S. Mishra
In this paper, the turbulence resistant properties of custom designed beams are experimentally investigated with the help of two types of atmospheric turbulence simulators. These beams are encoded with multiple optical vortices and are generated by phase-only SLM.
{"title":"Experimental Study on the Turbulence Resistant Properties of Custom Designed Beams Encoded with Multiple Vortices","authors":"Awakash Dixit, S. Mishra","doi":"10.1364/COSI.2019.JW2A.40","DOIUrl":"https://doi.org/10.1364/COSI.2019.JW2A.40","url":null,"abstract":"In this paper, the turbulence resistant properties of custom designed beams are experimentally investigated with the help of two types of atmospheric turbulence simulators. These beams are encoded with multiple optical vortices and are generated by phase-only SLM.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116914102","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 : 2019-06-24DOI: 10.1364/COSI.2019.JW2A.25
E. Serabyn
Light-field camera ray-trace simulations show that for sparse samples, the location, symmetry and size of the point-source response can provide lateral positions to a detector pixel size, and defocus to a lenslet focal length.
{"title":"3D object position retrieval with the light-field camera and microscope","authors":"E. Serabyn","doi":"10.1364/COSI.2019.JW2A.25","DOIUrl":"https://doi.org/10.1364/COSI.2019.JW2A.25","url":null,"abstract":"Light-field camera ray-trace simulations show that for sparse samples, the location, symmetry and size of the point-source response can provide lateral positions to a detector pixel size, and defocus to a lenslet focal length.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117267947","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 : 2019-06-24DOI: 10.1364/ISA.2019.ITH2B.6
Juan-Ning Zhao, Baixin Chen, M. Takeda, Wei Wang
By using coherence holography technique, we have observed the fluid-like rotation of a pair of coherence vortices with the same topological charge in optical coherence function as they propagate through the free space.
{"title":"Observation of the Fujiwhara effect in optical coherence function by using coherence holography","authors":"Juan-Ning Zhao, Baixin Chen, M. Takeda, Wei Wang","doi":"10.1364/ISA.2019.ITH2B.6","DOIUrl":"https://doi.org/10.1364/ISA.2019.ITH2B.6","url":null,"abstract":"By using coherence holography technique, we have observed the fluid-like rotation of a pair of coherence vortices with the same topological charge in optical coherence function as they propagate through the free space.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117309366","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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