Photoplethysmography
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Photoplethysmography
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Author : Panicos A. Kyriacou
language : en
Publisher: Academic Press
Release Date : 2021-11-03
Photoplethysmography written by Panicos A. Kyriacou and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-03 with Technology & Engineering categories.
Photoplethysmography: Technology, Signal Analysis, and Applications is the first comprehensive volume on the theory, principles, and technology (sensors and electronics) of photoplethysmography (PPG). It provides a detailed description of the current state-of-the-art technologies/optical components enabling the extreme miniaturization of such sensors, as well as comprehensive coverage of PPG signal analysis techniques including machine learning and artificial intelligence. The book also outlines the huge range of PPG applications in healthcare, with a strong focus on the contribution of PPG in wearable sensors and PPG for cardiovascular assessment. Presents the underlying principles and technology surrounding PPG Includes applications for healthcare and wellbeing Focuses on PPG in wearable sensors and devices Presents advanced signal analysis techniques Includes cutting-edge research, applications and future directions
Studies In Skin Perfusion Dynamics
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Author : Vladimir Blazek
language : en
Publisher: Springer Nature
Release Date : 2021-01-20
Studies In Skin Perfusion Dynamics written by Vladimir Blazek and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-20 with Science categories.
This book talks about photoplethysmography (PPG) techniques based on computer-aided data processing. In particular, it presents the results of a co-operative Indo-German project on the topic between Indian Institute of Technology at Chennai and RWTH Aachen University. Measuring system design, experimental details and some preliminary results obtained so far within the framework of this project are presented here. From the investigations carried out so far using the PPG sensors in conjunction with breathing sensors, it has been possible to monitor the 0.125 to 0.15 Hz rhythms in the arterial volumetric changes and to study the influence of breathing on them. These rhythms, which according to medical experts have relevance to psychosomatic conditions e.g. stress or relaxation, can also be addressed to by ancient Indian practices like yoga and meditation. This book presents the results of studying the effects of Indian relaxation techniques like pranayama, meditation, etc. in comparison to western relaxation techniques like autogenic training. So far it has been established that the Indian techniques of relaxation like yoga and meditation are very effective in generating low frequency rhythms in the skin perfusion as monitored by optical sensors. According to medical experts, these low frequency rhythms have a very important bearing on the human physiology and have potential therapeutic implications. This book is meant to provide an overview of the current state-of-knowledge and encourage the next generation of scientists/engineers to carry this work forward, especially on the novel PPG application fields that are of growing importance like pain and stress assessment, detection of peripheral venous saturation and local arterio-venous oxygen consumption as well as contactless space resolved skin perfusion studies with modern camera based PPG technology.
Photoplethysmography
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Author : Panicos A. Kyriacou
language : en
Publisher: Elsevier
Release Date : 2021-11-17
Photoplethysmography written by Panicos A. Kyriacou and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-17 with Technology & Engineering categories.
IFC -- Half title -- Title -- Copyright -- Contents -- Contributors -- Preface -- Foreword -- Chapter 1 Introduction to photoplethysmography -- 1.1 Principle of photoplethysmography -- 1.2 History of photoplethysmography -- 1.3 Chapter overview -- References -- Chapter 2 The origin of photoplethysmography -- 2.1 Introduction -- 2.2 PPG basic working principle -- 2.3 Theoretical background -- 2.3.1 The generic Beer-Lambert law -- 2.3.2 The modified Beer-Lambert law -- 2.3.3 The Beer-Lambert law with multiple absorbers -- 2.3.4 The Beer-Lambert law in PPG -- 2.3.5 The Beer-Lambert law in pulse oximetry -- 2.4 The origin of the photoplethysmogram -- 2.4.1 Different hypotheses relating to the origin of the PPG signal -- 2.4.2 Light-tissue interactions in photoplethysmography -- 2.4.3 Optical path and penetration depth analysis -- 2.4.4 Optical absorbance analysis -- 2.5 Conclusion -- References -- Chapter 3 Photoplethysmography technology -- 3.1 Introduction -- 3.2 Single Wavelength Instrumentation -- 3.2.1 Optical components -- 3.2.2 Emitter driver -- 3.2.3 Transimpedance amplifier -- 3.2.4 Signal conditioning -- 3.2.5 Analog-to-digital conversion -- 3.3 Multiwavelength instrumentation -- 3.3.1 Multi-wavelength emitter drivers -- 3.3.2 TIA -- 3.3.3 Sample-and-hold amplifier -- 3.4 Future trends -- References -- Chapter 4 Photoplethysmography signal processing and synthesis -- 4.1 Introduction -- 4.2 The Photoplethysmogram Signal -- 4.2.1 Physiological origins -- 4.2.2 Presentation of the photoplethysmogram signal -- 4.2.3 Signal acquisition -- 4.3 Photoplethysmogram Signal Processing -- 4.3.1 Preprocessing -- 4.3.2 Time domain analysis -- 4.3.3 Frequency domain analysis -- 4.3.4 Machine learning -- 4.3.5 Nonlinear analysis in phase space -- 4.3.6 Estimating physiological parameters -- 4.4 Photoplethysmogram Signal Synthesis.
Photoplethysmography
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Author : Joseph Weinman
language : en
Publisher:
Release Date : 1967
Photoplethysmography written by Joseph Weinman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with categories.
Quantitative Photoplethysmography
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Author : Vladimír Blažek
language : en
Publisher:
Release Date : 1996
Quantitative Photoplethysmography written by Vladimír Blažek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Noninvasive Measurement Of The Endothelial System Activity Using Calibrated Photoplethysmography
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Author : Brian Patrick Watschke
language : en
Publisher:
Release Date : 2000
Noninvasive Measurement Of The Endothelial System Activity Using Calibrated Photoplethysmography written by Brian Patrick Watschke and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Photoplethysmography
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Author : Joseph Lionel Higgins
language : en
Publisher:
Release Date : 1988
Photoplethysmography written by Joseph Lionel Higgins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.