The Design and Development of an Automatic System for Particle Size Analysis of Hologram Reconstructions by Digital Image Processing

The Design and Development of an Automatic System for Particle Size Analysis of Hologram Reconstructions by Digital Image Processing PDF Author: W. Gerald Mulvin
Publisher:
ISBN:
Category :
Languages : en
Pages : 210

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Digital Holography

Digital Holography PDF Author: Ulf Schnars
Publisher: Springer Science & Business Media
ISBN: 3540269118
Category : Science
Languages : en
Pages : 165

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Book Description
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

Digital Holography and Digital Image Processing

Digital Holography and Digital Image Processing PDF Author: Leonid Yaroslavsky
Publisher: Springer Science & Business Media
ISBN: 1475749880
Category : Computers
Languages : en
Pages : 591

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Book Description
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.

The Techniques of Holographic Particle Sizing

The Techniques of Holographic Particle Sizing PDF Author: Robert L. Kurtz
Publisher:
ISBN:
Category : Holography
Languages : en
Pages : 28

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Book Description
Depending on the mechanism of particle production, the resultant particle size and velocity distribution may range over several orders of magnitude. In general, if particle size information is desired from a given type generator, one must resort to some form of experimental determination of the distribution. If the source of particle production is a dynamic one involving a reasonable volume, holography provides a tailor-made particle size and velocity distribution detector. This is evidenced by the fact that holography allows the entire volume to be recorded on one exposure without any interference with the volume of interest. Herein lies a very important characteristic of the holographic particle detection technique: It provides a holographic nondestructive testing technique in the fullest sense of the definition of nondestructive testing. This report provides a description of three different systems useful in this technique and includes the experimental results from one of the holographic systems which was used to detect particle size and velocity distribution from the Skylab waste tank.

Design of an Automated Image Processing System for Particle Size Measurement

Design of an Automated Image Processing System for Particle Size Measurement PDF Author: Keun-Ho Ryoo
Publisher:
ISBN:
Category : Image processing
Languages : en
Pages : 638

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Digital Holography

Digital Holography PDF Author: Pascal Picart
Publisher: John Wiley & Sons
ISBN: 1118563204
Category : Computers
Languages : en
Pages : 274

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Book Description
This book presents a substantial description of the principles and applications of digital holography. The first part of the book deals with mathematical basics and the linear filtering theory necessary to approach the topic. The next part describes the fundamentals of diffraction theory and exhaustively details the numerical computation of diffracted fields using FFT algorithms. A thorough presentation of the principles of holography and digital holography, including digital color holography, is proposed in the third part. A special section is devoted to the algorithms and methods for the numerical reconstruction of holograms. There is also a chapter devoted to digital holographic interferometry with applications in holographic microscopy, quantitative phase contrast imaging, multidimensional deformation investigations, surface shape measurements, fluid mechanics, refractive index investigations, synthetic aperture imaging and information encrypting. Keys so as to understand the differences between digital holography and speckle interferometry and examples of software for hologram reconstructions are also treated in brief. Contents 1. Mathematical Prerequisites. 2. The Scalar Theory of Diffraction. 3. Calculating Diffraction by Fast Fourier Transform. 4. Fundamentals of Holography. 5. Digital Off-Axis Fresnel Holography. 6. Reconstructing Wavefronts Propagated through an Optical System. 7. Digital Holographic Interferometry and Its Applications. Appendix. Examples of Digital Hologram Reconstruction Programs

Introduction to Computer Holography

Introduction to Computer Holography PDF Author: Kyoji Matsushima
Publisher: Springer Nature
ISBN: 3030384357
Category : Science
Languages : en
Pages : 470

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Book Description
This book covers basic- to expert-level applications in computer holography, a strong candidate for the ultimate 3D display technology. The computer holography developed in the course of the past decade represents the basis of wave optics. Accordingly, the book presents the basic theory of wave optics and practical techniques for handling wave fields by means of the fast Fourier transform. Numerical techniques based on polygons, as well as mask-based techniques, are also presented for calculating the optical fields of virtual 3D models with occlusion processing. The book subsequently describes simulation techniques for very large-scale optical fields, and addresses the basics and concrete applications of simulation, offering a valuable resource for readers who need to employ it in the context of developing optical devices. To aid in comprehension, the main content is complemented by numerous examples of optical fields and photographs of reconstructed 3D images.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1126

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Digital Holography and Wavefront Sensing

Digital Holography and Wavefront Sensing PDF Author: Ulf Schnars
Publisher: Springer
ISBN: 9783662517741
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
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

Computer-Generated Phase-Only Holograms for 3D Displays

Computer-Generated Phase-Only Holograms for 3D Displays PDF Author: Peter Wai Ming Tsang
Publisher: Cambridge University Press
ISBN: 1108427332
Category : Computers
Languages : en
Pages : 211

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Book Description
Explore core concepts, theories and formulations of phase-only Fresnel holograms, which paves the way for 3-D holographic display system.