December 1, 2020

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Structured Light and Its Applications

Structured Light and Its Applications
Author : David L. Andrews
Publisher : Academic Press
Release Date : 2011-08-29
Category : Science
Total pages :400
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New possibilities have recently emerged for producing optical beams with complex and intricate structures, and for the non-contact optical manipulation of matter. Structured Light and Its Applications fully describes the electromagnetic theory, optical properties, methods and applications associated with this new technology. Detailed discussions are given of unique beam characteristics, such as optical vortices and other wavefront structures, the associated phase properties and photonic aspects, along with applications ranging from cold atom manipulation to optically driven micromachines. Features include: Comprehensive and authoritative treatments of the latest research in this area of nanophotonics, written by the leading researchers Accounts of numerous microfluidics, nanofabrication, quantum informatics and optical manipulation applications Coverage that fully spans the subject area, from fundamental theory and simulations to experimental methods and results Graduate students and established researchers in academia, national laboratories and industry will find this book an invaluable guide to the latest technologies in this rapidly developing field. Comprehensive and definitive source of the latest research in nanotechnology written by the leading people in the field From theory to applications - all is presented in detail Editor is Chair of the SPIE Nanotechnology Technical Group and is leading the way in generation and manipulation of complex beams

Structured Light Fields

Structured Light Fields
Author : Mike Wördemann
Publisher : Springer Science & Business Media
Release Date : 2012-05-16
Category : Science
Total pages :136
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The optical trapping of colloidal matter is an unequalled field of technology for enabling precise handling of particles on microscopic scales, solely by the force of light. Although the basic concept of optical tweezers, which are based on a single laser beam, has matured and found a vast number of exciting applications, in particular in the life sciences, there are strong demands for more sophisticated approaches. This thesis gives an introductory overview of existing optical micromanipulation techniques and reviews the state-of-the-art of the emerging field of structured light fields and their applications in optical trapping, micromanipulation, and organisation. The author presents established, and introduces novel concepts for the holographic and non-holographic shaping of a light field. A special emphasis of the work is the demonstration of advanced applications of the thus created structured light fields in optical micromanipulation, utilising various geometries and unconventional light propagation properties. While most of the concepts developed are demonstrated with artificial microscopic reference particles, the work concludes with a comprehensive demonstration of optical control and alignment of bacterial cells, and hierarchical supramolecular organisation utilising dedicated nanocontainer particles.

Time-of-Flight and Structured Light Depth Cameras

Time-of-Flight and Structured Light Depth Cameras
Author : Pietro Zanuttigh,Giulio Marin,Carlo Dal Mutto,Fabio Dominio,Ludovico Minto,Guido Maria Cortelazzo
Publisher : Springer
Release Date : 2016-05-24
Category : Computers
Total pages :355
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This book provides a comprehensive overview of the key technologies and applications related to new cameras that have brought 3D data acquisition to the mass market. It covers both the theoretical principles behind the acquisition devices and the practical implementation aspects of the computer vision algorithms needed for the various applications. Real data examples are used in order to show the performances of the various algorithms. The performance and limitations of the depth camera technology are explored, along with an extensive review of the most effective methods for addressing challenges in common applications. Applications covered in specific detail include scene segmentation, 3D scene reconstruction, human pose estimation and tracking and gesture recognition. This book offers students, practitioners and researchers the tools necessary to explore the potential uses of depth data in light of the expanding number of devices available for sale. It explores the impact of these devices on the rapidly growing field of depth-based computer vision.

Embedded Visual System and Its Applications on Robots

Embedded Visual System and Its Applications on Robots
Author : De Xu
Publisher : Bentham Science Publishers
Release Date : 2010
Category : Technology & Engineering
Total pages :134
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Annotation Embedded vision systems such as smart cameras have been rapidly developed recently. Vision systems have become smaller and lighter, but their performance has improved. The algorithms in embedded vision systems have their specifications limited by frequency of CPU, memory size, and architecture. The goal of this e-book is to provide a an advanced reference work for engineers, researchers and scholars in the field of robotics, machine vision, and automation and to facilitate the exchange of their ideas, experiences and views on embedded vision system models. The effectiveness for all methods is emphasized in a practical sense for systems presented in this e-book.

Visual Sensing and its Applications

Visual Sensing and its Applications
Author : Zhongxue Gan,Qing Tang
Publisher : Springer Science & Business Media
Release Date : 2011-12-28
Category : Technology & Engineering
Total pages :280
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“Visual Sensing and its Applications: Integration of Laser Sensors to Industrial Robots” provides comprehensive and up-to-date coverage of research and development on this robotic vision system. A laser-structured light is the main concern in discussions of visual sensing. Also addressed in this book are all components of the robotic vision system and an emphasis on how to increase the accuracy of the system using three levels of calibration. This includes calibration of the vision system (eye calibration), calibration of eye-to-hand configuration and calibration of robot kinematics (hand calibration). With the integration of the laser sensors to industrial robots numerous applications in the field of robotic welding, grinding, machining, inspection, and palletizing are illustrated based on practical engineering projects in order to demonstrate how the visual sensing is performed. The book will serve as a valuable resource for researchers and engineers in the areas of robotics and machine vision. Dr. Zhongxue Gan is a vice chairman and chief scientist of the ENN Group, China. He serves as a member of the National Energy Expert Consultation Committee of China and member of the National Coal Council of the USA. He is also a co-founder of Intersmart Robotic Systems Co. Ltd., China. He was a research fellow in flexible automation systems at ABB and a founding director of ABB Corporate Research Robot Laboratories, both in the USA and in China. Dr. Qing Tang is a co-founder and CEO of Intersmart Robotic Systems Co. Ltd., China and an adjunct professor in Physics at Sichuan University, China. He was a principle consulting engineer and project manager at the ABB Corporate Research Robot Laboratory in the USA.

Photonic Applications Based on the Use of Structured Light

Photonic Applications Based on the Use of Structured Light
Author : Carmelo G. Rosales Guzmán
Publisher : Unknown
Release Date : 2015
Category :
Total pages :109
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Structured light beams, this is, beams whose phase changes from point to point in the transverse plane, provides with an alternative tool to search for new applications, or simply to expand the capabilities of current applications where commonly used light beams have encountered physical limitations. Applications can be found not only in the field of optics but also in areas as diverse as astrophysics, telecommunications and quantum computing, to mention some. In this thesis we put forward three new applications in which the use of structured light beams plays a crucial role. In the field of optical remote sensing, the Doppler effect is widely used to measure the component of the velocity along the line of sight, \textit{i.e.}, the longitudinal component. The Doppler effect alone, does not allow to measure the transverse component. In this context, structured light beams provides with a tool that makes this possible: its structured phase. The main idea resides in the fact that this beams, reflected from transversally moving targets, are frequency shifted proportional to the velocity of the target. The information of the velocity can be extracted using interferometric methods, in a similar way to the longitudinal Doppler shift. In a first experiment we validated this theoretical concept for two particular cases: rotation and longitudinal motions along the transverse plane of illumination. Some current existing techniques to measure small layer thicknesses are based on the use of common-pant interferometers. In particular the self-referencing type, in which both the reference and the signal beams are generated locally. A reflective surface is engineered in the form of a ridge or cliff, in such a way when illuminated with a Gaussian beam half of it is reflected from the top and the other half from the base. This two "new beams" acquire a phase difference that depends on the height of the ridge and the wavelength of the illuminating source. This phase variations are detected on-axis in the far filed as intensity changes. Hence, if we place a thick layer on top of the ridge, the change in intensity will immediately yield the height of the layer. This scheme becomes highly sensitive to small phase variations when the height of the ridge is $1/8$ of the wavelength, known as the quadrature condition. This restriction might unfortunately limit the use of this technique to specific cases, since it highly depends on the construction of the ridge. To overcome this drawback we proposed and demonstrated experimentally a technique in which the quadrature condition is not needed a priori. Our approach is based on the use of spatial mode projection. For its implementation, we project the light reflected from the sample onto appropriately tailored spatial modes. Finally, we investigated theoretically the role that light endowed with Orbital Angular Momentum (OAM) might play for the discrimination of chiral molecules. Traditionally, this discrimination has been always related to Circularly Polarized Light (CPL), this is, to the Spin angular momentum of light. In this approach, the chiral response of molecules only depends on the properties of the same, and in many cases is very small. An approach to enhance this response was proposed very recently, in which the electromagnetic field that illuminates the molecule is properly tailored, in such a way the chiral response depends on both the molecular properties and the electromagnetic field. These types of electromagnetic fields have been termed "chiral fields'' and are characterised through a quantity known as optical chirality (denoted as C). This quantity measures how contorted is the field at each point in space, the higher the value of C, the higher the chiral response. In our approach, we started from exact solutions to the Helmholtz equation. We found that a proper superposition of this two beams produces an on-axis, enhanced chiral response that can be several times larger.

Computational Science and Its Applications - ICCSA 2006

Computational Science and Its Applications - ICCSA 2006
Author : Marina L. Gavrilova,Osvaldo Gervasi,Vipin Kumar,C.J. Kenneth Tan,David Taniar,Antonio Laganà,Hyunseung Choo,Youngsong Mun
Publisher : Springer Science & Business Media
Release Date : 2006-05-05
Category : Computers
Total pages :1255
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The five-volume set LNCS 3980-3984 constitutes the refereed proceedings of the International Conference on Computational Science and Its Applications, ICCSA 2006. The volumes present a total of 664 papers organized according to the five major conference themes: computational methods, algorithms and applications high performance technical computing and networks advanced and emerging applications geometric modelling, graphics and visualization information systems and information technologies. This is Part II.

The Angular Momentum of Light

The Angular Momentum of Light
Author : David L. Andrews,Mohamed Babiker
Publisher : Cambridge University Press
Release Date : 2013
Category : Science
Total pages :425
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The first comprehensive and authoritative coverage of the angular momentum of light, illustrating both its theoretical and applied aspects.

Photonics, Volume 1

Photonics, Volume 1
Author : David L. Andrews
Publisher : John Wiley & Sons
Release Date : 2015-01-16
Category : Technology & Engineering
Total pages :472
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Covers modern photonics accessibly and discusses the basic physical principles underlying all the applications and technology of photonics. This volume covers the basic physical principles underlying the technology and all applications of photonics from statistical optics to quantum optics. The topics discussed in this volume are: Photons in perspective; Coherence and Statistical Optics; Complex Light and Singular Optics; Electrodynamics of Dielectric Media; Fast and slow Light; Holography; Multiphoton Processes; Optical Angular Momentum; Optical Forces, Trapping and Manipulation; Polarization States; Quantum Electrodynamics; Quantum Information and Computing; Quantum Optics; Resonance Energy Transfer; Surface Optics; Ultrafast Pulse Phenomena. Comprehensive and accessible coverage of the whole of modern photonics Emphasizes processes and applications that specifically exploit photon attributes of light Deals with the rapidly advancing area of modern optics Chapters are written by top scientists in their field Written for the graduate level student in physical sciences; Industrial and academic researchers in photonics, graduate students in the area; College lecturers, educators, policymakers, consultants, Scientific and technical libraries, government laboratories, NIH.

Emerging Topics in Computer Vision and Its Applications

Emerging Topics in Computer Vision and Its Applications
Author : C. H. Chen
Publisher : World Scientific
Release Date : 2012
Category : Computer vision
Total pages :508
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This book gives a comprehensive overview of the most advanced theories, methodologies and applications in computer vision. Particularly, it gives an extensive coverage of 3D and robotic vision problems. Example chapters featured are Fourier methods for 3D surface modeling and analysis, use of constraints for calibration-free 3D Euclidean reconstruction, novel photogeometric methods for capturing static and dynamic objects, performance evaluation of robot localization methods in outdoor terrains, integrating 3D vision with force/tactile sensors, tracking via in-floor sensing, self-calibration of camera networks, etc. Some unique applications of computer vision in marine fishery, biomedical issues, driver assistance, are also highlighted.

Advances in Computer Science and its Applications

Advances in Computer Science and its Applications
Author : Hwa Young Jeong,Mohammad S. Obaidat,Neil Y. Yen,James J. (Jong Hyuk) Park
Publisher : Springer Science & Business Media
Release Date : 2013-11-23
Category : Mathematics
Total pages :749
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These proceedings focus on various aspects of computer science and its applications, thus providing an opportunity for academic and industry professionals to discuss the latest issues and progress in this and related areas. The book includes theory and applications alike.

Exploiting Advances in Arc Welding Technology

Exploiting Advances in Arc Welding Technology
Author : Woodhead Publishing,Gyoujin Cho
Publisher : Woodhead Publishing
Release Date : 1999-01-15
Category : Technology & Engineering
Total pages :238
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Proceedings of an international conference organised by the TWI.

International Conference on Image Processing and Its Applications, 7-9 April, 1992

International Conference on Image Processing and Its Applications, 7-9 April, 1992
Author : Anonim
Publisher : Peter Peregrinus Limited
Release Date : 1992
Category : Technology & Engineering
Total pages :628
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Computational Science and Its Applications

Computational Science and Its Applications
Author : Anonim
Publisher : Unknown
Release Date : 2006
Category : Computational complexity
Total pages :129
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Calibration of Multi-views Projector-Camera System by Using Structured Light and Applications in 3D Scan

Calibration of Multi-views Projector-Camera System by Using Structured Light and Applications in 3D Scan
Author : Anonim
Publisher : Unknown
Release Date : 2018
Category :
Total pages :129
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