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Author : Lifan Hua
Publisher :
ISBN 13 :
Total Pages : 358 pages
Book Rating : 4.:/5 (258 download)
Download or read book Digital Image Processing for Particle-in-line Holography written by Lifan Hua and published by . This book was released on 1991 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pascal Picart
Publisher : John Wiley & Sons
ISBN 13 : 1848217730
Total Pages : 318 pages
Book Rating : 4.8/5 (482 download)
Download or read book New Techniques in Digital Holography written by Pascal Picart and published by John Wiley & Sons. This book was released on 2015-03-16 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state of the art presentation of important advances in the field of digital holography, detailing advances related to fundamentals of digital holography, in-line holography applied to fluid mechanics, digital color holography, digital holographic microscopy, infrared holography, special techniques in full field vibrometry and inverse problems in digital holography
Download or read book DIGITAL IN-LINE HOLOGRAM ENHANCEMENT USING FILTERING AND PADDING FOR PARTICLE CHARACTERIZATION written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : We studied the effect of image enhancement techniques on digital holograms based on an in-line holographic system for air-borne cloud droplet measurements. A super-Gaussian filter is applied to pre-process the padded raw hologram prior to the reconstruction. The size distribution of pre-processed hologram with padding and filtering depicts a shift to the larger diameter of cloud particles due to the dilation of detected particle images. The dilated particles reside within the instrument's detectable size range. Two different padding methods: (1) zero padding and (2) mean padding show almost identical consequence for number concentration and particle size dilation. However, the pre-processed hologram with padding alone results in minimal improvement.
Author : Joseph Rosen
Publisher : BoD – Books on Demand
ISBN 13 : 953307227X
Total Pages : 470 pages
Book Rating : 4.5/5 (33 download)
Download or read book Holography written by Joseph Rosen and published by BoD – Books on Demand. This book was released on 2011-02-28 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Holography has recently become a field of much interest because of the many new applications implemented by various holographic techniques. This book is a collection of 22 excellent chapters written by various experts, and it covers various aspects of holography. The chapters of the book are organized in six sections, starting with theory, continuing with materials, techniques, applications as well as digital algorithms, and finally ending with non-optical holograms. The book contains recent outputs from researches belonging to different research groups worldwide, providing a rich diversity of approaches to the topic of holography.
Author : Anand Asundi
Publisher : John Wiley & Sons
ISBN 13 : 1119972787
Total Pages : 189 pages
Book Rating : 4.1/5 (199 download)
Download or read book Digital Holography for MEMS and Microsystem Metrology written by Anand Asundi and published by John Wiley & Sons. This book was released on 2011-07-05 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approaching the topic of digital holography from the practical perspective of industrial inspection, Digital Holography for MEMS and Microsystem Metrology describes the process of digital holography and its growing applications for MEMS characterization, residual stress measurement, design and evaluation, and device testing and inspection. Asundi also provides a thorough theoretical grounding that enables the reader to understand basic concepts and thus identify areas where this technique can be adopted. This combination of both practical and theoretical approach will ensure the book's relevance and appeal to both researchers and engineers keen to evaluate the potential of digital holography for integration into their existing machines and processes. Addresses particle characterization where digital holography has proven capability for dynamic measurement of particles in 3D for sizing and shape characterization, with applications in microfluidics as well as crystallization and aerosol detection studies. Discusses digital reflection holography, digital transmission holography, digital in-line holography, and digital holographic tomography and applications. Covers other applications including micro-optical and diffractive optical systems and the testing of these components, and bio-imaging.
Author : Leonid Yaroslavsky
Publisher : Springer Science & Business Media
ISBN 13 : 1475749880
Total Pages : 591 pages
Book Rating : 4.4/5 (757 download)
Download or read book Digital Holography and Digital Image Processing written by Leonid Yaroslavsky and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital holography and digital image processing are twins born by computer era. They share origin, theoretical base, methods and algorithms. The present book describes these common fundamentals principles, methods and algorithms including image and hologram digitization, data compression, digital transforms and efficient computational algorithms, statistical and Monte-Carlo methods, image restoration and enhancement, image reconstruction in tomography and digital holography, discrete signal resampling and image geometrical transformations, accurate measurements and reliable target localization in images, recording and reconstruction of computer generated holograms, adaptive and nonlinear filters for sensor signal perfecting and image restoration and enhancement. The book combines theory, heavily illustrated practical methods and efficient computational algorithms and is written for senior-level undergraduate and graduate students, researchers and engineers in optics, photonics, opto-electronics and electronic engineering.
Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (967 download)
Download or read book A Preliminary Comparison of Three Dimensional Particle Tracking and Sizing Using Plenoptic Imaging and Digital In-line Holography written by and published by . This book was released on 2015 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital in-line holography and plenoptic photography are two techniques for single-shot, volumetric measurement of 3D particle fields. Here we present a preliminary comparison of the two methods by applying plenoptic imaging to experimental configurations that have been previously investigated with digital in-line holography. These experiments include the tracking of secondary droplets from the impact of a water drop on a thin film of water and tracking of pellets from a shotgun. Both plenoptic imaging and digital in-line holography successfully quantify the 3D nature of these particle fields. This includes measurement of the 3D particle position, individual particle sizes, and three-component velocity vectors. For the initial processing methods presented here, both techniques give out-of-plane positional accuracy of approximately 1-2 particle diameters. For a fixed image sensor, digital holography achieves higher effective in-plane spatial resolutions. However, collimated and coherent illumination makes holography susceptible to image distortion through index of refraction gradients, as demonstrated in the shotgun experiments. On the other hand, plenotpic imaging allows for a simpler experimental configuration. Furthermore, due to the use of diffuse, white-light illumination, plenoptic imaging is less susceptible to image distortion in the shotgun experiments. Additional work is needed to better quantify sources of uncertainty, particularly in the plenoptic experiments, as well as develop data processing methodologies optimized for the plenoptic measurement.
Author : Ulf Schnars
Publisher : Springer
ISBN 13 : 3662446936
Total Pages : 233 pages
Book Rating : 4.6/5 (624 download)
Download or read book Digital Holography and Wavefront Sensing written by Ulf Schnars and published by Springer. This book was released on 2014-09-19 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly practical and self-contained guidebook explains the principles and major applications of digital hologram recording and numerical reconstruction (Digital Holography). A special chapter is designated to digital holographic interferometry with applications in deformation and shape measurement and refractive index determination. Applications in imaging and microscopy are also described. Spcial techniques such as digital light-in-flight holography, holographic endoscopy, information encrypting, comparative holography, and related techniques of speckle metrology are also treated
Author : Liangcai Cao
Publisher : Frontiers Media SA
ISBN 13 : 2832506178
Total Pages : 147 pages
Book Rating : 4.8/5 (325 download)
Download or read book Digital Holography: Techniques and Applications written by Liangcai Cao and published by Frontiers Media SA. This book was released on 2022-11-16 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andreas Schröder
Publisher : Springer Science & Business Media
ISBN 13 : 3540735283
Total Pages : 516 pages
Book Rating : 4.5/5 (47 download)
Download or read book Particle Image Velocimetry written by Andreas Schröder and published by Springer Science & Business Media. This book was released on 2008-01-14 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the main results reached using the EC-funded network PivNet 2. It also presents a survey of the state of the art of scientific research using PIV techniques. You get a clear introduction to the basics of these techniques. The authors then guide you through current and possible future applications for flow analysis, including combustion and supersonic flow. Hundreds of illustrations, many in full color, are provided.
Author : Thomas Kreis
Publisher : John Wiley & Sons
ISBN 13 : 3527604928
Total Pages : 554 pages
Book Rating : 4.5/5 (276 download)
Download or read book Handbook of Holographic Interferometry written by Thomas Kreis and published by John Wiley & Sons. This book was released on 2006-04-20 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the principles and methods of holographic interferometry - a coherent-optical measurement technique for deformation and stress analysis, for the determination of refractive-index distributions, or applied to non-destructive testing. Emphasis of the book is on the quantitative computer-aided evaluation of the holographic interferograms. Based upon wave-optics the evaluation methods, their implementation in computer-algorithms, and their applications in engineering are described.
Author : Chandra S. Vikram
Publisher :
ISBN 13 :
Total Pages : 636 pages
Book Rating : 4.F/5 ( download)
Download or read book Selected Papers on Holographic Particle Diagnostics written by Chandra S. Vikram and published by . This book was released on 1990 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ulf Schnars
Publisher : Springer Science & Business Media
ISBN 13 : 3540269118
Total Pages : 165 pages
Book Rating : 4.5/5 (42 download)
Download or read book Digital Holography written by Ulf Schnars and published by Springer Science & Business Media. This book was released on 2005-12-08 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly practical and self-contained guidebook explains the principles and major applications of digital hologram recording and numerical reconstruction (Digital Holography). A special chapter is designated to digital holographic interferometry with applications in deformation and shape measurement and refractive index determination. Applications in imaging and microscopy are also described. Spcial techniques such as digital light-in-flight holography, holographic endoscopy, information encrypting, comparative holography, and related techniques of speckle metrology are also treated
Author : F.T. Nieuwstadt
Publisher : Springer Science & Business Media
ISBN 13 : 9401126909
Total Pages : 279 pages
Book Rating : 4.4/5 (11 download)
Download or read book Flow Visualization and Image Analysis written by F.T. Nieuwstadt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in fluid mechanics depends heavily on the availability of good experimental data which can inspire new ideas and concepts but which are also necessary to check and validate theories and numerical calculations. With the advent of new recording and image analysis techniques new and promising experimental methods in fluid flows have presented themselves which are rather newly developed techniques such as particle tracking velocimetry (PTV), particle image velocimetry (PIV) and laser fluorescene (LIF). This volume presents state-of-the-art research on these techniques and their application to fluid flow. Selected papers from the EUROMECH conference on Image Analysis are published in this volume.
Author : W. Gerald Mulvin
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (426 download)
Download or read book The Design and Development of an Automatic System for Particle Size Analysis of Hologram Reconstructions by Digital Image Processing written by W. Gerald Mulvin and published by . This book was released on 1988 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Th. Dracos
Publisher : Springer Science & Business Media
ISBN 13 : 9780792342564
Total Pages : 346 pages
Book Rating : 4.3/5 (425 download)
Download or read book Three-Dimensional Velocity and Vorticity Measuring and Image Analysis Techniques written by Th. Dracos and published by Springer Science & Business Media. This book was released on 1996-10-31 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this volume reflect to a large extent the efforts made by a group of Institutes at the ETH Zürich to develop new techniques for measurements of flows in fluids in the last decade. The motivation came from the study of tr~sport and mixing processes in natural and industrial systems. One of the characteristic properties of turbulence is its high mixing efficiency. The techniques developed are therefore suitable, although not exclusively, for turbulence measurements. They can be subdivided into point-measurements and field-measurements. The aim of the point-measurements developed is to determine the three components of the velocity and all their first derivatives with good temporal resolution and accuracy in turbulent flows. The old and weIl established method of hot-wire anemometry was used for this purpose. One of the main achievements in this context is the construction of miniature multi-wire probes. This technique was introduced to the Institute of Hydromechanics and Water Resources Management of ETH Zürich by Profs. A. Tsinober and E. Kit from Tel-Aviv University. This was made possible by the generous financial support by ETH, for which I would like to express my gratitude on this occasion. In addition, Dr. F.E. Joergensen from DANTEC contributed an example of recent developments in the hardware ofConstant Temperature Anemometry (CTA), for which I am very thankful.
Author : Scott Jarrett Forbes
Publisher :
ISBN 13 :
Total Pages : 344 pages
Book Rating : 4.:/5 (319 download)
Download or read book In-line Particle Holography Applied to Fluid Velocity Measurement written by Scott Jarrett Forbes and published by . This book was released on 1989 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
