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BOOK EXCERPT:
The focus of this book is on "ill-posed inverse problems". These problems cannot be solved only on the basis of observed data. The building of solutions involves the recognition of other pieces of a priori information. These solutions are then specific to the pieces of information taken into account. Clarifying and taking these pieces of information into account is necessary for grasping the domain of validity and the field of application for the solutions built. For too long, the interest in these problems has remained very limited in the signal-image community. However, the community has since recognized that these matters are more interesting and they have become the subject of much greater enthusiasm. From the application field’s point of view, a significant part of the book is devoted to conventional subjects in the field of inversion: biological and medical imaging, astronomy, non-destructive evaluation, processing of video sequences, target tracking, sensor networks and digital communications. The variety of chapters is also clear, when we examine the acquisition modalities at stake: conventional modalities, such as tomography and NMR, visible or infrared optical imaging, or more recent modalities such as atomic force imaging and polarized light imaging.
Product Details :
Genre |
: Technology & Engineering |
Author |
: Jean-Francois Giovannelli |
Publisher |
: John Wiley & Sons |
Release |
: 2015-02-02 |
File |
: 322 Pages |
ISBN-13 |
: 9781118826980 |
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BOOK EXCERPT:
Many scientific, medical or engineering problems raise the issue of recovering some physical quantities from indirect measurements; for instance, detecting or quantifying flaws or cracks within a material from acoustic or electromagnetic measurements at its surface is an essential problem of non-destructive evaluation. The concept of inverse problems precisely originates from the idea of inverting the laws of physics to recover a quantity of interest from measurable data. Unfortunately, most inverse problems are ill-posed, which means that precise and stable solutions are not easy to devise. Regularization is the key concept to solve inverse problems. The goal of this book is to deal with inverse problems and regularized solutions using the Bayesian statistical tools, with a particular view to signal and image estimation. The first three chapters bring the theoretical notions that make it possible to cast inverse problems within a mathematical framework. The next three chapters address the fundamental inverse problem of deconvolution in a comprehensive manner. Chapters 7 and 8 deal with advanced statistical questions linked to image estimation. In the last five chapters, the main tools introduced in the previous chapters are put into a practical context in important applicative areas, such as astronomy or medical imaging.
Product Details :
Genre |
: Mathematics |
Author |
: Jérôme Idier |
Publisher |
: John Wiley & Sons |
Release |
: 2013-03-01 |
File |
: 322 Pages |
ISBN-13 |
: 9781118623695 |
eBook Download
BOOK EXCERPT:
The focus of this book is on "ill-posed inverse problems". These problems cannot be solved only on the basis of observed data. The building of solutions involves the recognition of other pieces of a priori information. These solutions are then specific to the pieces of information taken into account. Clarifying and taking these pieces of information into account is necessary for grasping the domain of validity and the field of application for the solutions built. For too long, the interest in these problems has remained very limited in the signal-image community. However, the community has since recognized that these matters are more interesting and they have become the subject of much greater enthusiasm. From the application field’s point of view, a significant part of the book is devoted to conventional subjects in the field of inversion: biological and medical imaging, astronomy, non-destructive evaluation, processing of video sequences, target tracking, sensor networks and digital communications. The variety of chapters is also clear, when we examine the acquisition modalities at stake: conventional modalities, such as tomography and NMR, visible or infrared optical imaging, or more recent modalities such as atomic force imaging and polarized light imaging.
Product Details :
Genre |
: Technology & Engineering |
Author |
: Jean-Francois Giovannelli |
Publisher |
: John Wiley & Sons |
Release |
: 2015-02-16 |
File |
: 322 Pages |
ISBN-13 |
: 9781848216372 |
eBook Download
BOOK EXCERPT:
Regularization becomes an integral part of the reconstruction process in accelerated parallel magnetic resonance imaging (pMRI) due to the need for utilizing the most discriminative information in the form of parsimonious models to generate high quality images with reduced noise and artifacts. Apart from providing a detailed overview and implementation details of various pMRI reconstruction methods, Regularized image reconstruction in parallel MRI with MATLAB examples interprets regularized image reconstruction in pMRI as a means to effectively control the balance between two specific types of error signals to either improve the accuracy in estimation of missing samples, or speed up the estimation process. The first type corresponds to the modeling error between acquired and their estimated values. The second type arises due to the perturbation of k-space values in autocalibration methods or sparse approximation in the compressed sensing based reconstruction model. Features: Provides details for optimizing regularization parameters in each type of reconstruction. Presents comparison of regularization approaches for each type of pMRI reconstruction. Includes discussion of case studies using clinically acquired data. MATLAB codes are provided for each reconstruction type. Contains method-wise description of adapting regularization to optimize speed and accuracy. This book serves as a reference material for researchers and students involved in development of pMRI reconstruction methods. Industry practitioners concerned with how to apply regularization in pMRI reconstruction will find this book most useful.
Product Details :
Genre |
: Medical |
Author |
: Joseph Suresh Paul |
Publisher |
: CRC Press |
Release |
: 2019-11-05 |
File |
: 271 Pages |
ISBN-13 |
: 9781351029247 |
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BOOK EXCERPT:
Product Details :
Genre |
: Electro-acoustics |
Author |
: |
Publisher |
: |
Release |
: 1990 |
File |
: 550 Pages |
ISBN-13 |
: UCSD:31822004981288 |
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BOOK EXCERPT:
Product Details :
Genre |
: Mathematics |
Author |
: Ali Mohammad-Djafari |
Publisher |
: SPIE-International Society for Optical Engineering |
Release |
: 1998 |
File |
: 396 Pages |
ISBN-13 |
: UOM:39015043000069 |
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BOOK EXCERPT:
This volume contains the proceedings of the Fifteenth International Workshop on Maximum Entropy and Bayesian Methods, held in Santa Fe, New Mexico, U.S.A., from July 31-August 4, 1995. Maximum entropy and Bayesian methods are widely applied to statistical data analysis and scientific inference in the natural and social sciences, engineering and medicine. Practical applications include, among others, parametric model fitting and model selection, ill-posed inverse problems, image reconstruction signal processing, decision making, and spectrum estimation. Fundamental applications include the common foundations for statistical inference, statistical physics and information theory. Specific sessions during the workshop focused on time series analysis, machine learning, deformable geometric models, and data analysis of Monte Carlo simulations, as well as reviewing the relation between maximum entropy and information theory. Audience: This book should be of interest to scientists, engineers, medical professionals, and others engaged in such topics as data analysis, statistical inference, image processing, and signal processing.
Product Details :
Genre |
: Mathematics |
Author |
: Kenneth M. Hanson |
Publisher |
: Springer Science & Business Media |
Release |
: 1996 |
File |
: 488 Pages |
ISBN-13 |
: UCSD:31822023890585 |
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BOOK EXCERPT:
Product Details :
Genre |
: Automatic tracking |
Author |
: |
Publisher |
: |
Release |
: 1994 |
File |
: 412 Pages |
ISBN-13 |
: UOM:39015032628516 |
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BOOK EXCERPT:
Bayesian inference and maximum entropy methods are central points of new scientific inference in mathematical physics and in all inverse problems in engineering and all probabilistic data analysis. This volume contains peer-reviewed selection of the papers presented at this international workshop. Topics included are: axiomatics and concepts, bayesian parameter estimation, algorithms for bayesian computation, deconvolution and source separation, quantum tomography, tomographic imaging and image processing, as well as bayesian inference in applications.
Product Details :
Genre |
: Mathematics |
Author |
: Ali Mohammad-Djafari |
Publisher |
: American Institute of Physics |
Release |
: 2001-06-08 |
File |
: 670 Pages |
ISBN-13 |
: STANFORD:36105025335493 |
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BOOK EXCERPT:
Product Details :
Genre |
: Image processing |
Author |
: |
Publisher |
: |
Release |
: 1995 |
File |
: 456 Pages |
ISBN-13 |
: UOM:39015035262065 |