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Fourier Multispectral Imaging in the Shortwave Infrared

2017 Infrared spectroscopy
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Release : 2017
Genre : Infrared spectroscopy
Kind : eBook
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Book Synopsis Fourier Multispectral Imaging in the Shortwave Infrared by : Matthew David Howard

Download or read book Fourier Multispectral Imaging in the Shortwave Infrared written by Matthew David Howard. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: Most multispectral systems try to measure incoming spectra with narrow-band filters at specific central wavelengths which are chosen based upon the application. A shortwave infrared (SWIR) multispectral system using concepts from Fourier multispectral imaging was designed with approximately sinusoidal spectral transmission filters. The filters were implemented as single cavity thin film resonators of varying thicknesses. The prototype system was evaluated using narrow-band spectra with single peaks, narrow-band spectra with multiple peaks, and broadband spectra with atmospheric absorption characteristics. The results show that this technique preserves spectral peaks and absorption bands even though the filters are not perfectly sinusoidal. Additionally, preliminary detection results were evaluated using a synthetic scene.

Fourier Multispectral Imaging

2017 Fourier transform spectroscopy
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Release : 2017
Genre : Fourier transform spectroscopy
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Book Synopsis Fourier Multispectral Imaging by : Jie Jia

Download or read book Fourier Multispectral Imaging written by Jie Jia. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: There are many limitations to existing multispectral imaging modalities, such as speed, cost, range, spatial resolution, and application-specific system designs that lade generality. In this dissertation thesis, we propose a novel general-purpose multispectral imaging (MSI) modality. Central to this MSI design is a new type of spectral filters based not on the notion of narrowband filters, but instead using Fourier transform spectroscopy. Firstly, we verified the performance of our MSI system by simulation. Then, two initial prototypes based on this new idea are built and tested with real data capture. The results show that spectral features such as transmission and absorption peaks are preserved with this technique, proving that it is a more versatile technique compared to the narrowband filters for a wide range of multispectral imaging applications. We demonstrated single-shot multispectral imaging capability with a spectral filter array (SFA) pattern prototype designed to minimize the risk of spatial aliasing.

Fourier Transform Infrared Spectrometry

2007-03-16 Science
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Release : 2007-03-16
Genre : Science
Kind : eBook
Book Rating : 298/5 ( reviews)

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Book Synopsis Fourier Transform Infrared Spectrometry by : Peter R. Griffiths

Download or read book Fourier Transform Infrared Spectrometry written by Peter R. Griffiths. This book was released on 2007-03-16. Available in PDF, EPUB and Kindle. Book excerpt: A bestselling classic reference, now expanded and updated to cover the latest instrumentation, methods, and applications The Second Edition of Fourier Transform Infrared Spectrometry brings this core reference up to date on the uses of FT-IR spectrometers today. The book starts with an in-depth description of the theory and current instrumentation of FT-IR spectrometry, with full chapters devoted to signal-to-noise ratio and photometric accuracy. Many diverse types of sampling techniques and data processing routines, most of which can be performed on even the less expensive instruments, are then described. Extensively updated, the Second Edition: * Discusses improvements in optical components * Features a full chapter on FT Raman Spectrometry * Contains new chapters that focus on different ways of measuring spectra by FT-IR spectrometry, including fourteen chapters on such techniques as microspectroscopy, internal and external reflection, and emission and photoacoustic spectrometry * Includes a new chapter introducing the theory of vibrational spectrometry * Organizes material according to sampling techniques Designed to help practitioners using FT-IR capitalize on the plethora of techniques for modern FT-IR spectrometry and plan their experimental procedures correctly, this is a practical, hands-on reference for chemists and analysts. It's also a great resource for students who need to understand the theory, instrumentation, and applications of FT-IR.

Multispectral Imaging

2024-05-12 Computers
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Release : 2024-05-12
Genre : Computers
Kind : eBook
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Book Synopsis Multispectral Imaging by : Fouad Sabry

Download or read book Multispectral Imaging written by Fouad Sabry. This book was released on 2024-05-12. Available in PDF, EPUB and Kindle. Book excerpt: What is Multispectral Imaging Multispectral imaging captures image data within specific wavelength ranges across the electromagnetic spectrum. The wavelengths may be separated by filters or detected with the use of instruments that are sensitive to particular wavelengths, including light from frequencies beyond the visible light range, i.e. infrared and ultra-violet. It can allow extraction of additional information the human eye fails to capture with its visible receptors for red, green and blue. It was originally developed for military target identification and reconnaissance. Early space-based imaging platforms incorporated multispectral imaging technology to map details of the Earth related to coastal boundaries, vegetation, and landforms. Multispectral imaging has also found use in document and painting analysis. How you will benefit (I) Insights, and validations about the following topics: Chapter 1: Multispectral imaging Chapter 2: Infrared Chapter 3: Remote sensing Chapter 4: Thermographic camera Chapter 5: Satellite imagery Chapter 6: Spectral signature Chapter 7: Spectral imaging Chapter 8: Hyperspectral imaging Chapter 9: Chemical imaging Chapter 10: Normalized difference vegetation index (II) Answering the public top questions about multispectral imaging. (III) Real world examples for the usage of multispectral imaging in many fields. Who this book is for Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of Multispectral Imaging.

Hyperspectral Satellites and System Design

2020-04-02 Technology & Engineering
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Release : 2020-04-02
Genre : Technology & Engineering
Kind : eBook
Book Rating : 705/5 ( reviews)

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Book Synopsis Hyperspectral Satellites and System Design by : Shen-En Qian

Download or read book Hyperspectral Satellites and System Design written by Shen-En Qian. This book was released on 2020-04-02. Available in PDF, EPUB and Kindle. Book excerpt: Hyperspectral Satellites and System Design is the first book on this subject. It provides a systematic analysis and detailed design of the entire development process of hyperspectral satellites. Derived from the author’s 25-year firsthand experience as a technical lead of space missions at the Canadian Space Agency, the book offers engineers, scientists, and decision-makers detailed knowledge and guidelines on hyperspectral satellite system design, trade-offs, performance modeling and simulation, optimization from component to system level, subsystem design, and implementation strategies. This information will help reduce the risk, shorten the development period, and lower the cost of hyperspectral satellite missions. This book is a must-have reference for professionals in developing hyperspectral satellites and data applications. It is also an excellent introductory book for early practitioners and students who want to learn more about hyperspectral satellites and their applications.

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