2018 17th Workshop on Information Optics (WIO)最新文献

Three-dimensional Integral Imaging Visualization in Scattering Medium with Baysian Estimation 基于贝叶斯估计的散射介质三维积分成像可视化

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643546

S. Komatsu, B. Javidi

{"title":"Three-dimensional Integral Imaging Visualization in Scattering Medium with Baysian Estimation","authors":"S. Komatsu, B. Javidi","doi":"10.1109/WIO.2018.8643546","DOIUrl":"https://doi.org/10.1109/WIO.2018.8643546","url":null,"abstract":"We propose an image descattering method for improved image visualization in scattering medium such as heavy turbid water. The descattering method is applied to three-dimensional (3D) integral imaging (InIm). The 3D InIm pick-up process captures multiple two-dimensional images of a scene each having a different perspective of the scene, known as elemental images (EIs), and combines this information to generate a 3D reconstruction of the scene. A scattering mitigation process is applied to each EI prior to 3D reconstruction to reduce the effect of scattering. In the scattering mitigation process, we assume that the intensity of the scattering medium containing object information is a Gaussian distribution and the distribution of the scattering medium is known a priori and also follows a Gaussian distribution for the whole captured image. By computing maximum a posteriori estimates of the mean and variance of the turbid media containing object information, a Bayesian scattering mitigation process is implemented. After the scattering mitigation process, the 3D reconstruction image is calculated computationally using back propagation method. We compare the reconstructed image quality of an existing method and our proposed method using structural similarity index (SSIM), and show our proposed method achieve higher SSIM.","PeriodicalId":430979,"journal":{"name":"2018 17th Workshop on Information Optics (WIO)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117283286","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}

引用次数: 0

Light-field optics and its potential applications 光场光学及其潜在应用

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643461

Toru Iwane

{"title":"Light-field optics and its potential applications","authors":"Toru Iwane","doi":"10.1109/WIO.2018.8643461","DOIUrl":"https://doi.org/10.1109/WIO.2018.8643461","url":null,"abstract":"Light-field optics is different from conventional image-focusing optics, in which we discuss how correctly an image plane is transferred onto another plane through an optical system. This light-field optics does not deal with an “image” on a plane but conditions of rays in 3D space, instead. As conditions of rays in 3D space represent real 3D scene or 3D objects, 3D object is expressed on 2D plane as encoded data in light-field optics and these recorded data can be decoded back to 3D images reversibly. These exchangeable processes are represented by the relation of light-field camera and light-field display; a 3D image is recorded on 2D plane by a light-field camera, as it is, and is reconstructed from the recorded data by a light-field display. Recorded data on 2D plane by a light-field camera is not a formed image but encoded data. Therefore in light-field optics an optical system is free from limit of optical conjugate. Display plane can be put on any place, for example. Small flat displays can be set on the plane of spectacles instead of lenses and you can see an image through the optical system. It is a thin HMD. An e-book free from reading glasses might be realized in the same way. There are many applications of light-field optics as well as 3D recording and displaying system. I will report theorem of this light field optics and its applications we have made","PeriodicalId":430979,"journal":{"name":"2018 17th Workshop on Information Optics (WIO)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130620274","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}

引用次数: 2

Birefringent distributions tailored for imaging and other applications 为成像和其他应用量身定制的双折射分布

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643458

M. Alonso, A. Vella

引用次数: 0

Holographic wave field synthesis using refractive elements 利用折射元件合成全息波场

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8705297

C. Falldorf, R. Bergmann

引用次数: 0

Exploring cell structure, dynamics and homeostasis with a multimodal microscopy approach based on digital holographic microscopy: towards identifying early biomarkers of cell viability and cytotoxicity 利用基于数字全息显微镜的多模态显微镜方法探索细胞结构、动力学和稳态:识别细胞活力和细胞毒性的早期生物标志物

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643551

P. Marquet, P. Jourdain, E. Bélanger, P. Magistretti

{"title":"Exploring cell structure, dynamics and homeostasis with a multimodal microscopy approach based on digital holographic microscopy: towards identifying early biomarkers of cell viability and cytotoxicity","authors":"P. Marquet, P. Jourdain, E. Bélanger, P. Magistretti","doi":"10.1109/WIO.2018.8643551","DOIUrl":"https://doi.org/10.1109/WIO.2018.8643551","url":null,"abstract":"Among the different techniques in the growing field of quantitative phase imaging (QPI), Quantitative Phase Digital Holographic Microscopy (QP-DHM) is particularly well suited to explore, with a nanometric axial sensitivity, cell structure and dynamics, by providing quantitative phase signal (QPS). QPS depends on both the thickness and the intracellular refractive index of the observed cells and brings thus information about both cell morphology and cell contents. Thanks to the development of different experimental procedures, relevant biophysical cell parameters can be successfully calculated from QPS, including cell shape, absolute volume, intracellular protein concentration, organelle distribution, nanoscale membrane fluctuations, membrane mechanical properties and water permeability, as well as transmembrane water movements. Simultaneous dynamic imaging of transmembrane water movements and cell volume is likely to assess the cell capacity to maintain or not homeostasis and consequently to identify early biomarkers of cell viability and cytotoxicity.","PeriodicalId":430979,"journal":{"name":"2018 17th Workshop on Information Optics (WIO)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132736040","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}

引用次数: 1

Multi-scale stochastic morphological models for 3D complex microstructures 三维复杂微结构的多尺度随机形态模型

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643455

M. Moreaud, Johan Chaniot, T. Fournel, J. Becker, L. Sorbier

{"title":"Multi-scale stochastic morphological models for 3D complex microstructures","authors":"M. Moreaud, Johan Chaniot, T. Fournel, J. Becker, L. Sorbier","doi":"10.1109/WIO.2018.8643455","DOIUrl":"https://doi.org/10.1109/WIO.2018.8643455","url":null,"abstract":"The analysis of 3D images of complex materials, once imaging and reconstruction steps have been thoroughly done, can provide essential information. This analysis can be largely enhanced by using a modeling of the observed media, based on a reduced set of interpretable parameters. Besides, a common feature to many materials as diverse as concrete, rocks, bones, nanomaterials or heterogeneous catalysts is a multi-scale morphology with the meaning that specific morphological features exist at various length scales. Access to these different length scales’ information is essential in order to understand and modelize these materials. This is a central point in the optimization of the usage properties of these materials such as mechanical strength or mass transport, which need a preliminary characterization of their morphology with the help of an adequate model. We propose here a modelization based on the so-called multi-scale Boolean models, models which have been successfully related to some usage properties, of primary importance for the design of new microstructures. These models are based on a reduced set of parameters related to interpretable material manufacturing settings. We illustrate the use of these models for the following tasks: representation of real multi-scale material like alumina catalyst supports, estimation of critical percolation threshold and assessment of tortuosity and accessibility. In addition, their efficient computing and visualization are addressed using ”plug im!”, a signal and image processing modular open access software.","PeriodicalId":430979,"journal":{"name":"2018 17th Workshop on Information Optics (WIO)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127734088","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}

引用次数: 8

Multiple plane holographic projection using diamond turned holograms 多平面全息投影使用钻石旋转全息图

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643454

Fabian Thiemicke, C. Falldorf, T. Klein, A. Holthusen, O. Riemer, R. Bergmann, E. Brinksmeier

{"title":"Multiple plane holographic projection using diamond turned holograms","authors":"Fabian Thiemicke, C. Falldorf, T. Klein, A. Holthusen, O. Riemer, R. Bergmann, E. Brinksmeier","doi":"10.1109/WIO.2018.8643454","DOIUrl":"https://doi.org/10.1109/WIO.2018.8643454","url":null,"abstract":"Diffractive optical elements (DOE) are widely used for the projection of desired intensity distributions, e.g. in security or automotive applications. Diamond turning based on a nano Fast Tool Servo offers short fabrication times and low costs for small quantities. The main properties of diamond turned metal DOEs for the holographic projection are their small pixel size down to 1 μm in feed direction, high reflectivity and mechanical and thermal stability. Currently, existing methods are limited to the projection of intensity distributions in only one plane. However, more than one projection plane is highly desirable for applications as automotive lighting, laser material processing and security features. In this contribution, we introduce an approach for the optical design of diamond turned holograms (DTH) for the holographic projection of arbitrary intensity distributions in multiple reconstruction planes in the Fresnel domain. The design problem is related to the spiral path of the diamond cutting tool and to find a set of N wavefields which generate intensity distributions in different distances dn. For calculating the cutting depth profile of the DTH a combination of the Gerchberg-Saxton-Algorithm with an iterative phase retrieval algorithm is applied. The use of Fresnel propagation in the algorithm allows the generation of intensity distributions in large projection areas with low computational effort. We present the theory as well as the experimental verification of this new approach.","PeriodicalId":430979,"journal":{"name":"2018 17th Workshop on Information Optics (WIO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129122082","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}

引用次数: 2

Slanted color moirés in 3-D displays: How to simulate them? 3-D显示器中的倾斜彩色条纹:如何模拟它们?

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643462

J. Son, Jung Kim, Hyoung Lee, M. Park, Beom-Ryeol Lee, S. Yano

引用次数: 0

The use ofEMCCDs as silicon-based photon counting devices emccd作为硅基光子计数器件的应用

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643548

O. Daigle

{"title":"The use ofEMCCDs as silicon-based photon counting devices","authors":"O. Daigle","doi":"10.1109/WIO.2018.8643548","DOIUrl":"https://doi.org/10.1109/WIO.2018.8643548","url":null,"abstract":"Photon Counting (PC) efficiency has increased since the first photon counting devices. Third generation image intensifiers with high Quantum Efficiency (QE) photocathodes (of the order of 30%) are used with CCDs in intensified photon counting systems. But, the efficiency of this kind of camera is limited by the capability of the tube to transform an incoming photon into an electron and amplifying it so that the output signal is largely over the CCD Read-out Noise (RON). Improvements in CCD QE, which now reaches 90% at some wavelengths, and RON, as low as $3overline{mathrm{e}}$, have no effect on the total counting efficiency of these cameras. RON of $3overline{mathrm{e}}$ is still too high for an application such as photon counting for extreme faint fluxes. It is now possible to amplify the pixel signal into the CCD before it reaches the output amplifier and before it is affected by its noise. These Electron Multiplying CCD make it is possible to get sub-electron effective RON, low enough for PC. PC capability combined with a very low dark current, very good pixel response uniformity, and high QE offered by the CCD technology have made EMCCD the detector of choice for high-performance applications such as time resolved spectroscopy and low light imaging.","PeriodicalId":430979,"journal":{"name":"2018 17th Workshop on Information Optics (WIO)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128897585","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}

引用次数: 1

Cauchy-Glass Patterns Cauchy-Glass模式

2018 17th Workshop on Information Optics (WIO) Pub Date : 2018-07-01 DOI: 10.1109/WIO.2018.8643453

Fournel Thierry

引用次数: 0