Holography And Computer Generated Holograms
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Holography And Computer Generated Holograms
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Author : Ian Mason Firth
language : en
Publisher: Mills & Boon
Release Date : 1972
Holography And Computer Generated Holograms written by Ian Mason Firth and has been published by Mills & Boon this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Computers categories.
Introduction To Computer Holography
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Author : Kyoji Matsushima
language : en
Publisher: Springer Nature
Release Date : 2020-03-23
Introduction To Computer Holography written by Kyoji Matsushima and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-23 with Science categories.
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.
Computer Generated Phase Only Holograms For 3d Displays
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Author : Peter Wai Ming Tsang
language : en
Publisher: Cambridge University Press
Release Date : 2021-01-21
Computer Generated Phase Only Holograms For 3d Displays written by Peter Wai Ming Tsang and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-21 with Computers categories.
Explore core concepts, theories and formulations of phase-only Fresnel holograms, which paves the way for 3-D holographic display system.
Laser Beam Mode Selection By Computer Generated Holograms
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Author : Victor A. Soifer
language : en
Publisher: CRC Press
Release Date : 1994-07-20
Laser Beam Mode Selection By Computer Generated Holograms written by Victor A. Soifer and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-07-20 with Science categories.
Laser Beam Mode Selection by Computer Generated Holograms brings attention to a new class of optical elements called modans, with applications in laser and fiber optics. Separation of the transverse modes by modans is discussed in close analogy to well-known effects of color separation by diffraction gratings. The book describes the basic questions of digital holography in the recording of complex wavefronts on phase-only media, binary coding cells, multilevel computer-generated holograms, quantization and sampling, image reconstruction, and computer generation of multifocal and multibeam holograms. This collective effort summarizes 12 years of scientific activities in the development of diffractive optical elements and provides considerable material never before published. An interesting appendix dedicates itself to mathematical proof of optimal properties of orthogonal base-functions and eigenfunctions.
Computer Holography
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Author : Tomoyoshi Shimobaba
language : en
Publisher: CRC Press
Release Date : 2019-01-30
Computer Holography written by Tomoyoshi Shimobaba and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-30 with Technology & Engineering categories.
This book describes algorithms and hardware implementations of computer holography, especially in terms of fast calculation. It summarizes the basics of holography and computer holography and describes how conventional diffraction calculations play a central role. Numerical implementations by actual codes will also be discussed. This book will explain new fast diffraction calculations, such as scaled scalar diffraction. Computer Holography will also explain acceleration algorithms for computer-generated hologram (CGH) generation and digital holography with 3D objects composed of point clouds, using look-up table- (LUT) based algorithms, and a wave front recording plane. 3D objects composed of polygons using tilted plane diffraction, expressed by multi-view images and RGB-D images, will be explained in this book. Digital holography, including inline, off-axis, Gabor digital holography, and phase shift digital holography, will also be explored. This book introduces applications of computer holography, including phase retrieval algorithm, holographic memory, holographic projection, and deep learning in computer holography, while explaining hardware implementations for computer holography. Recently, several parallel processors have been released (for example, multi-core CPU, GPU, Xeon Phi, and FPGA). Readers will learn how to apply algorithms to these processors. Features Provides an introduction of the basics of holography and computer holography Summarizes the latest advancements in computer-generated holograms Showcases the latest researchers of digital holography Discusses fast CGH algorithms and diffraction calculations, and their actual codes Includes hardware implementation for computer holography, and its actual codes and quasi-codes
Digital Holography And Three Dimensional Display
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Author : Ting-Chung Poon
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-09-01
Digital Holography And Three Dimensional Display written by Ting-Chung Poon and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-09-01 with Science categories.
Digital holography and its application to 3-D display is one of the formidable problems of evolving areas of high technology to receive great attention in recent years. This book offers a collection of key chapters that covers digital holography and 3-D display techniques to provide the state-of-the-art developments in these important areas. The book contains research material as well as reviews, new ideas and fresh insights.
Modeling Design And Optimization Of Computer Generated Holograms With Binary Phases
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Author : Jing Wang
language : en
Publisher:
Release Date : 2019
Modeling Design And Optimization Of Computer Generated Holograms With Binary Phases written by Jing Wang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
The computer-generated hologram (CGH) has been demonstrated to play an important role, since its invention by Lohmann in 1960s, in many applications such as wavefront engineering, structured illumination and optical display, etc. In this thesis, the modeling, design and optimization of CGH with binary phases are studied. We considered a practical projection image system with certain working specification, e.g. working distance of 40 cm, depth of field of 10 cm and a diffraction angle of 53 degree for 632 nm working wavelength, and then designed and optimized a binary-phase hologram by direct binary search for this image system. The hologram was fabricated by E-beam lithography. To achieve the required diffraction angle, we discussed the optical architecture in holographic projection image system. The designed CGH and holographic projection image system were validated experimentally by optical reconstruction. Since the pixels will eventually cluster to form polygonal apertures in hologram, which can be seen clearly during the process of direct binary search, we proposed a new approach to directly design polygonal apertures based on triangular layout in CGH of a large number of pixels. The diffraction of aperture was calculated by analytical Abbe transform. The reconstructed image can be expressed as a coherent addition of diffraction patterns from all the straight edges of different orientations and lengths. A two-step optimization including genetic algorithm with local search for encoding binary phases of apertures, followed by direct search for floating covertices of the elementary triangular apertures was developed. We further proposed a quadrilateral aperture layout, which provides more degrees of freedom and can form more diverse polygonal apertures in holograms. The parallel genetic algorithm with local search was adopted to assign binary phases in the first step, and direct search was then used to optimize of locations of covertices of quadrilateral apertures in the second step. Three different schemes for the two-step algorithm were discussed to provide flexible ways to balance the optimization performance and time cost.
Digital Holography And Digital Image Processing
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Author : Leonid Yaroslavsky
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-14
Digital Holography And Digital Image Processing written by Leonid Yaroslavsky and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-14 with Computers categories.
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.
Selected Papers On Computer Generated Holograms And Diffractive Optics
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Author : Sing H. Lee
language : en
Publisher:
Release Date : 1992
Selected Papers On Computer Generated Holograms And Diffractive Optics written by Sing H. Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Computer graphics categories.
An important feature of computer generated holograms (CGHs) is to create wavefronts that may be defined only mathematically. Since A. W. Lohmann and his colleagues invented CGHs in 1966 for spatial filtering in image processing, the applications of CGHs have multiplied to include 3-D display, optical testing, diffractive/binary optics, bifocal intraocular lenses, wavefront transformations for material processing, pickup heads for optical disks, focal plane array detection, coherent laser addition, beam steering, and optical interconnects for parallel computing and neural computing. Today, the applications of CGHs continue to expand. This book features a selection of papers that examine different aspects of the development of CGHs from the 1960s through 1990, because there is no substitute for reading the original papers on any subject, even if that subject is mature enough to have many single-aspect monographs and textbooks. It is hoped that this selection of papers will be valuable additions to many working libraries on this expanding, expansive subject.
Computer Generated Holography Ii
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Author : Sing H. Lee
language : en
Publisher:
Release Date : 1988
Computer Generated Holography Ii written by Sing H. Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Technology & Engineering categories.