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Author: Corinne Fournier
Publisher: John Wiley & Sons
ISBN: 1789451329
Category : Medical
Languages : en
Pages : 308
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Book Description
Optical imaging of biological systems has undergone spectacular development in recent years, producing a quantity and a quality of information that, just twenty years ago, could only be dreamed of by physicists, biologists and physicians. Unconventional imaging systems provide access to physical quantities – phase, absorption, optical index, the polarization property of a wave or the chemical composition of an object – not accessible to conventional measurement systems. To achieve this, these systems use special optical setups and specific digital image processing to reconstruct physical quantities. This field is also known as computational imaging. This book presents various non-conventional imaging modalities developed for the biomedical field: wave front analysis imaging, digital holography/tomography, optical nanoscopy, endoscopy and singlesensor imaging. Experimental setups and reconstruction algorithms are presented for each modality.
Author: Corinne Fournier
Publisher: John Wiley & Sons
ISBN: 1789451329
Category : Medical
Languages : en
Pages : 308
Get Book Here
Book Description
Optical imaging of biological systems has undergone spectacular development in recent years, producing a quantity and a quality of information that, just twenty years ago, could only be dreamed of by physicists, biologists and physicians. Unconventional imaging systems provide access to physical quantities – phase, absorption, optical index, the polarization property of a wave or the chemical composition of an object – not accessible to conventional measurement systems. To achieve this, these systems use special optical setups and specific digital image processing to reconstruct physical quantities. This field is also known as computational imaging. This book presents various non-conventional imaging modalities developed for the biomedical field: wave front analysis imaging, digital holography/tomography, optical nanoscopy, endoscopy and singlesensor imaging. Experimental setups and reconstruction algorithms are presented for each modality.
Author: Corinne Fournier
Publisher: John Wiley & Sons
ISBN: 1394283989
Category : Medical
Languages : en
Pages : 308
Get Book Here
Book Description
Optical imaging of biological systems has undergone spectacular development in recent years, producing a quantity and a quality of information that, just twenty years ago, could only be dreamed of by physicists, biologists and physicians. Unconventional imaging systems provide access to physical quantities – phase, absorption, optical index, the polarization property of a wave or the chemical composition of an object – not accessible to conventional measurement systems. To achieve this, these systems use special optical setups and specific digital image processing to reconstruct physical quantities. This field is also known as computational imaging. This book presents various non-conventional imaging modalities developed for the biomedical field: wave front analysis imaging, digital holography/tomography, optical nanoscopy, endoscopy and singlesensor imaging. Experimental setups and reconstruction algorithms are presented for each modality.
Author: Guy Cox
Publisher: CRC Press
ISBN: 1420005618
Category : Science
Languages : en
Pages : 304
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Book Description
Since the word microscopy was coined in 1656, the evolution of the instrument has had a long and convoluted history. Plagued with problems of chromatic aberration, spherical aberration, and challenges with illumination and resolution, the microscope's technical progression happened in a series of fits and starts until the late 19th century. After E
Author: Jorge Bouza Dominguez
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
In this thesis, a new time-dependent model for describing light propagation in biological media is proposed. The model is based on the simplified spherical harmonics approximation and is represented by a set of coupled parabolic partial differential equations (TD-pSPN equations). In addition, the model is extended for modeling the time-dependent response of fluorescent agents in biological tissues and the ensuing time-domain propagation of light therein. In a comparison with Monte Carlo simulations, it is shown that the TD-pSPN equations present unique features in its derivation that makes it a more accurate alternative to the diffusion equation (DE). The TD-pSPN model (for orders N > 1) outperforms the DE in the description of the propagation of light in near-nondiffusive media and in all the physical situations where DE fails. Often, only small orders of the SP N approximation are needed to obtain accurate results. A diffuse optical tomography (DOT) algorithm is also implemented based on the TD-pSPN equations as the forward model using constrained optimization methods. The algorithm uses time-dependent (TD) data directly. Such an approach is benefited from both the accuracy of the SPN models and the richness of TD data. In the calculation of the gradient of the objective function, a time-dependent adjoint differentiation method is introduced that reduces computation time. Several numerical experiments are performed for small geometry media with embedded inclusions that mimic small animal imaging. In these experiments, the values of the optical coefficients are varied within realistic bounds that are representative of those found in the range of the near-infrared spectrum, including high absorption values. Single and multi-parameter reconstructions (absorption and diffusion coefficients) are performed. The reconstructed images based on the TD-pSPN equations (N > 1) give better estimates of the optical properties of the media than the DE. On the other hand, crosstalk effects and small artifacts appeared in all the cases (more intense in the DE images). Comparatively, the reconstructed images show a lesser influence of these undesirable 'effects than other approaches found in the literature. The results suggest that the DOT algorithm based on the TD-pSPN model is an accurate alternative to the DE for imaging optical properties of biological media. These results directly benefict the fields of therapeutics and time-domain optical imaging of biological tissues. Particularly, the presented work is a decisive step in the elaboration of an optical scanner for small animal imaging at our lab. Thus, a positive impact in the areas of clinical diagnosis and biomedical research are expected.
Author: Guy Cox
Publisher: CRC Press
ISBN: 1439848254
Category : Medical
Languages : en
Pages : 319
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Book Description
Optical Imaging Techniques in Cell Biology, Second Edition covers the field of biological microscopy, from the optics of the microscope to the latest advances in imaging below the traditional resolution limit. It includes the techniques—such as labeling by immunofluorescence and fluorescent proteins—which have revolutionized cell biology. Quantitative techniques such as lifetime imaging, ratiometric measurement, and photoconversion are all covered in detail. Expanded with a new chapter and 40 new figures, the second edition has been updated to cover the latest developments in optical imaging techniques. Explanations throughout are accurate, detailed, but as far as possible non-mathematical. This edition includes appendices with useful practical protocols, references, and suggestions for further reading. Color figures are integrated throughout.
Author: Xunbin Wei
Publisher: Springer Nature
ISBN: 9811576270
Category : Medical
Languages : en
Pages : 309
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Book Description
The book introduces readers to the basic principle of optical imaging technologies. Focusing on human disease diagnostics using optical imaging methods, it provides essential information for researchers in various fields and discusses the latest trends in optical imaging. In recent decades, there has been a huge increase in imaging technologies and their applications in human diseases diagnostics, including magnetic resonance imaging, x-ray computed tomography, and nuclear tomographic imaging. This book promotes further developments to extend optical imaging to a wider range of disease diagnostics. It is a valuable resource for researchers and students in the field of biomedical optics, as well as for clinicians.
Author: Emanuel Marom
Publisher: Springer Science & Business Media
ISBN: 9401140960
Category : Science
Languages : en
Pages : 295
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Book Description
The field of optics has been accelerating at an unprecedented rate, due both to the tremendous growth of the field of fiber-optic communications, and to the improvement of optical materials and devices. Throughput capabilities of fiber systems are accelerating faster than Moore's law, the famous growth rate of silicon chip capability, which has propelled that industry relentlessly over decades. In addition, new optical storage techniques push the limits of information density, with an ever decreasing cost per bit of storage. Economic investment in photonics is at an all-time high. At the same time, other fields of optics, adaptive optics for instance, are bringing new capabilities to more classical applications such as astronomical imaging. New lasers continue to be developed, with applications in display, sensing, and biomedicine following at ever-shorter intervals after the initial discoveries. Given this background, the NATO Mediterranean Dialog Advanced Research Workshop on Unconventional Optical Elements for Information Storage, Processing and Communications, held in Israel on October 19-21, 1998, came at an opportune moment in the history of optics. Its aim was to overview the current state-of-the-art and encourage cooperation in the Mediterranean region, with a view to highlighting and enhancing the existing potential for further development and innovation. The workshop included participants from Belgium, France, Germany, Greece, Israel, Italy, Jordan, Morocco, Portugal, Romania, Russia, Switzerland, Turkey, United Kingdom and USA.
Author: G.v. Bally
Publisher: Springer
ISBN: 3540394559
Category : Science
Languages : en
Pages : 283
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Book Description
As there recently has been increased interest in the applications of optical techniques in biomedical research and clinical diagnostics, it seemed to be appropriate to organize a comprehensive international conference on optics in medicine and biology. Such a broad international meeting had not been held before. An international conference on Optics in Biomedical Sciences was organized and took place in Graz, Austria, September 7th through 11th, 1981, sponsored by the International Commission for Optics (ICO) in co operation with the European Optical Committee, the Austrian Association on Biomedical Engineering, and the German Society for Applied Optics. It seemed timely to establish a forum for communication among specialists on an international level. This book, presenting the papers given at this conference, demonstrates the state of the art of this increasingly expanding field of applications of optics. Furthermore, the interested reader will find an extended list of references in the various contributions. This book helps to overcome the difficulty, inherent in all interdisciplinary research fields, of gathering widely scattered literature. The contributions to this book are focussed on the following topics: Biomedical applications of - unconventional imaging in microscopy, - image processing, - interferometry and holography, - speckle-techniques and spectroscopy, - optometry, and - Moire methods. In addition, the brilliant and humorous closing remarks of Nils Abramson from the Royal Institute of Technology, Stockholm, have been included.
Author:
Publisher: Academic Press
ISBN: 0128211520
Category : Science
Languages : en
Pages : 432
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Book Description
Chemical Tools for Imaging, Manipulating, and Tracking Biological Systems: Diverse Methods for Optical Imaging and Conjugation, Volume 639, the latest release in the Methods in Enzymology series, continues the legacy of this premier serial with quality chapters authored by leaders in the field. Chapters in this new release include Fluorogenic detection of protein aggregates in live cells using the AggTag method, Synthesis and Application of Ratiometric Probes for Hydrogen Peroxide Detection, Chemical Tools for Multicolor Protein FRET with Tryptophan, Fluorescing Isofunctional Ribonucleosides for Adenosine Deaminase Activity and Inhibition, Temporal profiling establishes a dynamic S-palmitoylation cycle, Solvation-guided design of fluorescent probes for discrimination of amyloids, and much more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Methods in Enzymology series Includes the latest information on retinoid signaling pathways
Author: Ahmad Fadzil Mohamad Hani
Publisher: CRC Press
ISBN: 1498750389
Category : Medical
Languages : en
Pages : 441
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Book Description
Optical imaging is a rapidly emerging imaging technique that has been successfjully translated into biomedical applications ranging from clinical diagnosis to molecular biology. This book includes an introductory section to explore various optical imaging devices and their functionality and roles for biomedical applications such as dermatology and ophthalmology. Recent developments as exemplified with the authors research are explored in detail. In depth discussion of other disease conditions and their diagnosis with optical imaging techniques are also covered.
