contactless vital signs monitoring

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Contactless Vital Signs Monitoring
Author : Wenjin Wang,Xuyu Wang
Publisher : Academic Press
Release Date : 2021-11-15
ISBN 10 : 9780128222812
Pages : 320 pages
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Vital signs, such as respiration and heartbeat, are useful to physical health monitoring since such signals provide important clues of medical problems, such as sleep disorders or anomalies, and sudden infant death syndrome (SIDS) of sleeping infants. Most traditional methods for vital sign monitoring require a person to wear special devices such as a capnometer or a pulse oximeter or an electrocardiogram sensor. These contact-based technologies are inconvenient, cumbersome and uncomfortable to use. Contactless vital signs monitoring presents a systematic and in-depth review on the principles and opportunities of using different wavelengths of an electromagnetic spectrum to measure human vital signs contactlessly. It brings together the major/pioneer researchers active in the field and discusses the latest progress made, in an intensive and structured way. It also presents various healthcare applications using camera based monitoring, from clinical care to home care to sport training to automotive, such as sleep monitoring/staging, neonatal care, patient monitoring in intensive care unit, general ward, emergency department triage, MRI/CT respiratory gating, clinical workflow monitoring and optimization, baby/elderly care, fitness cardio tracking, driver monitoring in automotive, etc. This book will be an important source for biomedical researchers, computer vision and AI researchers, wireless sensing researchers, doctors/clinicians, physicians, psychologists, medical manufacturers. Includes different RF based vital sign monitoring techniques, including Radar based, WiFi based, RFID based, and acoustic based methods Presents advances and opportunities of camera for context/semantic/activity monitoring beyond the vital signs Presents a thorough introduction on the methodologies, hardware setups and systems for camera-based vital signs measurement

Robust Contactless Sensor for Real-time Vital Signs Monitoring
Author : Kevin K. M. Chan,University of Alberta. Department of Electrical and Computer Engineering
Publisher : N.A
Release Date : 2014
ISBN 10 :
Pages : 107 pages
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Wireless sensing find many biomedical applications due to the benefit and convenience of having no contact with the patients. Low power radio waves, that are biologically safe, can monitor the patient's medical conditions such as the breathing and heart beat rate. Electro-magnetic (EM) waves extract the small movements of the chest and heart via field disturbance phenomena. The patient's breathing and heart beat modulate the radio waves for the vital signs to be monitored in real-time. Ultra-wideband (UWB) radar is an EM scattering technology that has been proven to discriminate targets with less than 30mm range resolution, which is smaller than the average size of a human heart. The UWB radar emits 200ps pulses that occupy a bandwidth from 3 to 10GHz. For linearly polarized radiation, the radar cross-section (RCS) of a moving target having complex shapes such as the thorax section of a human body causes regular fading. The scattering from a complex target rotates the radio wave vector to result in non-optimal signal reception due to polarization losses. The research focuses on the design of a circularly polarized (CP) UWB radar system for contactless vital signs monitoring of a patient. Circular polarization is introduced to address the fading RCS problem thus achieving a more robust system. The same CP UWB radar system with radio waves that penetrate through dielectric objects can be used for time-critical rescue operations in locating survivors buried under collapsed structures or in buildings engulfed in flames where visibility is hampered. Furthermore, by employing material characterization and microwave imaging techniques, it is possible to use the proposed system for other biomedical applications such as tumor localization and damaged tissue identification. The thesis is organized as follows. Firstly, the operation of UWB radar is presented and the research topic addressed. The pulse generator design suited for low pulse repetition rates is then introduced. The design of a decade bandwidth circularly polarized antenna array is described. The methodology and performance of the robust vital signs monitoring system is shown and compared with the linear polarized counterpart. A new method for material characterization using time domain RCS measurements is demonstrated. The future work is finally proposed.

EMBEC & NBC 2017
Author : Hannu Eskola,Outi Väisänen,Jari Viik,Jari Hyttinen
Publisher : Springer
Release Date : 2017-06-12
ISBN 10 : 9811051224
Pages : 1139 pages
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This volume presents the proceedings of the joint conference of the European Medical and Biological Engineering Conference (EMBEC) and the Nordic-Baltic Conference on Biomedical Engineering and Medical Physics (NBC), held in Tampere, Finland, in June 2017. The proceedings present all traditional biomedical engineering areas, but also highlight new emerging fields, such as tissue engineering, bioinformatics, biosensing, neurotechnology, additive manufacturing technologies for medicine and biology, and bioimaging, to name a few. Moreover, it emphasizes the role of education, translational research, and commercialization.

Methods for the Next Generation of Contactless Doppler Radar-based Vital Signs Monitoring Sensors
Author : Mehrdad Nosrati
Publisher : N.A
Release Date :
ISBN 10 : 9781392799413
Pages : 215 pages
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Non-Invasive Diagnostic Methods
Author : N.A
Publisher : BoD – Books on Demand
Release Date : 2018-12-19
ISBN 10 : 178984844X
Pages : 60 pages
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The main themes of the book are the broadly understood methods of image analysis and processing applied to support diagnosis and therapy, but also to assess the implants placed in the patient's body and the related treatment processes. The examples concern processing and analysis of images or measured signals obtained from various diagnostic imaging methods. The study used, among others, standard X-ray images, computed tomography images, microtomographic images, as well as thermographic and ultrasound images. The results of image and signal processing were used in medical diagnosis and to evaluate the effectiveness of therapy. The material contained in this book may be of interest to a wide audience, and the discussed topics cover the current state of knowledge on the use of image processing algorithms in medicine and related fields.

2018 3rd International Conference on Intelligent Green Building and Smart Grid (IGBSG)
Author : IEEE Staff
Publisher : N.A
Release Date : 2018-04-22
ISBN 10 : 9781538606629
Pages : 329 pages
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building home communication technologies, e applications, power electronics and green building technologies for a wide range of uses in intelligent buildings and smart grids

Application of Infrared to Biomedical Sciences
Author : Eddie YK Ng,Mahnaz Etehadtavakol
Publisher : Springer
Release Date : 2017-03-23
ISBN 10 : 9811031479
Pages : 552 pages
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The book covers the latest updates in the application of infrared to biomedical sciences, a non-invasive, contactless, safe and easy approach imaging of skin and tissue temperatures. Its diagnostic procedure allows practitioners to identify the locations of abnormal chemical and blood vessel activity such as angiogenesis in body tissue. Its non-invasive approach works by applying the technology of the infrared camera and state-of-the-art software, where high-resolution digital infrared imaging technology benefits highly from enhanced image production, standardized image interpretation protocols, computerized comparison and storage, and sophisticated image enhancement and analysis. The book contains contributions from global prominent scientists in the area of infrared applications in biomedical studies. The target audience includes academics, practitioners, clinicians and students working in the area of infrared imaging in biomedicine.

Doppler Radar Physiological Sensing
Author : Olga Boric-Lubecke,Victor M. Lubecke,Amy D. Droitcour,Byung-Kwon Park,Aditya Singh
Publisher : John Wiley & Sons
Release Date : 2015-12-15
ISBN 10 : 1119078431
Pages : 304 pages
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Presents a comprehensive description of the theory and practical implementation of Doppler radar-based physiological monitoring This book includes an overview of current physiological monitoring techniques and explains the fundamental technology used in remote non-contact monitoring methods. Basic radio wave propagation and radar principles are introduced along with the fundamentals of physiological motion and measurement. Specific design and implementation considerations for physiological monitoring radar systems are then discussed in detail. The authors address current research and commercial development of Doppler radar based physiological monitoring for healthcare and other applications. Explains pros and cons of different Doppler radar architectures, including CW, FMCW, and pulsed Doppler radar Discusses nonlinear demodulation methods, explaining dc offset, dc information, center tracking, and demodulation enabled by dc cancellation Reviews advanced system architectures that address issues of dc offset, spectrum folding, motion interference, and range resolution Covers Doppler radar physiological measurements demonstrated to date, from basic cardiopulmonary rate extractions to more involved volume assessments Doppler Radar Physiological Sensing serves as a fundamental reference for radar, biomedical, and microwave engineers as well as healthcare professionals interested in remote physiological monitoring methods.

EMBEC & NBC 2017
Author : Hannu Eskola,Outi Väisänen,Jari Viik,Jari Hyttinen
Publisher : Springer
Release Date : 2017-06-12
ISBN 10 : 9811051224
Pages : 1139 pages
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This volume presents the proceedings of the joint conference of the European Medical and Biological Engineering Conference (EMBEC) and the Nordic-Baltic Conference on Biomedical Engineering and Medical Physics (NBC), held in Tampere, Finland, in June 2017. The proceedings present all traditional biomedical engineering areas, but also highlight new emerging fields, such as tissue engineering, bioinformatics, biosensing, neurotechnology, additive manufacturing technologies for medicine and biology, and bioimaging, to name a few. Moreover, it emphasizes the role of education, translational research, and commercialization.

Sensor Technologies
Author : Michael J. McGrath,Cliodhna Ni Scanaill
Publisher : Apress
Release Date : 2013-12-17
ISBN 10 : 1430260130
Pages : 336 pages
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Sensor Technologies: Healthcare, Wellness and Environmental Applications explores the key aspects of sensor technologies, covering wired, wireless, and discrete sensors for the specific application domains of healthcare, wellness and environmental sensing. It discusses the social, regulatory, and design considerations specific to these domains. The book provides an application-based approach using real-world examples to illustrate the application of sensor technologies in a practical and experiential manner. The book guides the reader from the formulation of the research question, through the design and validation process, to the deployment and management phase of sensor applications. The processes and examples used in the book are primarily based on research carried out by Intel or joint academic research programs. “Sensor Technologies: Healthcare, Wellness and Environmental Applications provides an extensive overview of sensing technologies and their applications in healthcare, wellness, and environmental monitoring. From sensor hardware to system applications and case studies, this book gives readers an in-depth understanding of the technologies and how they can be applied. I would highly recommend it to students or researchers who are interested in wireless sensing technologies and the associated applications.” Dr. Benny Lo Lecturer, The Hamlyn Centre, Imperial College of London “This timely addition to the literature on sensors covers the broad complexity of sensing, sensor types, and the vast range of existing and emerging applications in a very clearly written and accessible manner. It is particularly good at capturing the exciting possibilities that will occur as sensor networks merge with cloud-based ‘big data’ analytics to provide a host of new applications that will impact directly on the individual in ways we cannot fully predict at present. It really brings this home through the use of carefully chosen case studies that bring the overwhelming concept of 'big data' down to the personal level of individual life and health.” Dermot Diamond Director, National Centre for Sensor Research, Principal Investigator, CLARITY Centre for Sensor Web Technologies, Dublin City University "Sensor Technologies: Healthcare, Wellness and Environmental Applications takes the reader on an end-to-end journey of sensor technologies, covering the fundamentals from an engineering perspective, introducing how the data gleaned can be both processed and visualized, in addition to offering exemplar case studies in a number of application domains. It is a must-read for those studying any undergraduate course that involves sensor technologies. It also provides a thorough foundation for those involved in the research and development of applied sensor systems. I highly recommend it to any engineer who wishes to broaden their knowledge in this area!" Chris Nugent Professor of Biomedical Engineering, University of Ulster What you’ll learnThe relevant sensing approaches and the hardware and software components required to capture and interpret sensor data. The importance of regulations governing medical devices. A design methodology for developing and deploying successful home- and community-based technologies, supported by relevant case studies. Health, wellness, and environmental sensing applications and how they work. The challenges and future directions of sensing in these domains. Who this book is for Sensor Technologies: Healthcare, Wellness and Environmental Applications is targeted at clinical and technical researchers, engineers, and students who want to understand the current state of the art in sensor applications in these domains. The reader gains a full awareness of the key technical and non-technical challenges that must be addressed in the development of successful end-to-end sensor applications. Real-world examples help give the reader practical insights into the successful development, deployment, and management of sensor applications. The reader will also develop an understanding of the personal, social, and ethical impact of sensor applications, now and in the future. Table of ContentsChapter One: Introduction Chapter Goal: Reader should understand the key challenges and drivers for sensor application development. The reader should also understand how sensor technologies can play a role in addressing some of the key challenges facing global society in the short to medium term. 1. Book overview 2. Drivers for Sensor Applications (Infrastructure Growth in Developing Countries, Advances in Energy Harvesting, New Applications, Cost reduction, Real-time monitoring of situations to avoid unplanned downtime, Security (personal and national), the internet of things). 3. Challenges for Sensor Applications (Power, Efficient Operation in Harsh Environments, Number of Deployable Nodes, Safety and Regulations, High Cost of Installation, Security and Reliability, sensor management) 4. Global Megatrends and the opportunities for sensing technologies o Water and Food Constraints o Aging Demographics o Public Health o Pandemics o Security Chapter 2: Sensing and Sensor Fundamentals Chapter Goal: Reader should understand existing sensor technologies, which can be used in healthcare, wellness, and environmental domains. They should also understand the role of smart sensors and smart phones as mobile sensing platforms and aggregators. 1. Sensing Modalities (Mechanical, MEMS, Optical, ISFET, μTAS) 2. Sensing Domains (Air, Water, Noise, Bacterial, Chemical, Kinematic, DNA, Physiological) 3. Functional Characterisation of Sensors o Communication methods – discrete, wired, wireless o Smart Sensors and Sensor Platforms § MSP430 (SHIMMER and telosB motes) § ATmega § PIC 4. Smart Phones as mobile sensor platforms 5. Selecting and specifying sensors Chapter 3 Key Sensor Technology Components – Hardware and Software Overview Chapter Goal: Reader should have a high level understanding of the key hardware and software components, which are necessary for the development of sensors systems and why technologies are selected for specific applications. 1. Overview – Sensor systems 2. MCU’s (TI MSP430, ATmega, PIC) a. ADCs b. Interrupts c. Real-time Clocks 3. Sensor Interfaces a. Digital b. Analog c. I2C 4. Communications – wired and wireless interfaces RS232/485, USB, Ethernet, FieldbusProprietary Short Range Wireless Protocols (e.g. ANT, BodyLAN, Sensium)Standard Short Range Protocols i. IEEE 802.15.6 ii. Bluetooth/Smart Bluetooth iii. 802.15.4 iv. UWB Medium Range i. Wi-Fi 5. Data storage (EEPROM, sd card, data forwarding) 6. Power management and Energy Harvesting 7. Operating Systems and Software Development Environments (SDK’s) Chapter 4 Sensor Network Architectures Chapter Goal: Reader should understand the various approaches to the design of sensor network architectures; scaling from body worn systems, to ambient sensing, to city-scale deployments. The reader should also understand the advantages and disadvantages of current and evolving sensor network architectures. 1. Sensor network architectures o Discrete Sensor o Sensor to aggregator o PAN/WPAN/smart clothing o Pervasive/Ambient sensor networks o Wide area networks (city-wide, country wide) 2. Challenges in developing and deploying sensor networks 3. Current and Proposed Solutions o Remote sensor management o Edge Processing o Power harvesting o New communication standards Chapter 5: Adding Vibrancy to Sensor Data Chapter Goal: Reader should understand the various methods to interpret and display sensor data to the user. They will understand the importance of creating a data analysis plan from the outset, and the different types of data analysis throughout the application stack. 1. Data Literacy – How can we intuitively answer questions with sensor data and contextualise answers 2. Data Quality a. Calibration b. Trust and Repudiation 3. Sensor Fusion – combining sensory data from disparate sources 4. Data Mining 5. Data Visualisation 6. Openness, data integration, virtual sensors 7. Exploiting the power of the cloud Chapter 6: Regulation and Standards Chapter Goal: Reader should understand the key technologies, which impact or influence the development of sensor deployment and applications including the emerging standards and regulatory considerations. 1. Regulatory Standards (US, EU, Japan) : why, which, and how standards impact your application 2. Regulatory Issues: Certification 3. Smartphones Considerations o Privacy and data security 4. Standards Bodies and Industry Groups o Continua Healthcare Alliance o ISO/IEEE 11073 5. Wearable Wireless Health Communication Standards Chapter 7: Biosensing in Everyday Life – Driving Biocontextual Aware Computing Chapter Goal: Reader should understand the social relationships that create opportunities and barriers for widespread, consumer-based biosensing. The reader should understand how the social world is shifting from sensor technologies of “should” to sensor technologies of “could” to facilitate new understandings of health and wellness and drive new methods and practices of personal data sharing. 1. Data Security and Ownership - Sharing and Managing Personal Data 2. Game Changing Pressure for Affordable Healthcare 3. Continuous, Personal Data is Improving Lives 4. Emerging Tech-Empowered Citizens 5. Sensing for Self-Discovery, Culture and Play 6. User feedback/Supporting sustainable human behaviours – leveraging the gaming culture Chapter 8: Development and Deployment of Sensor Technologies for Home and Community Settings Chapter Goal: Reader should understand how to design a sensor deployment for a home or community. The chapter informs the reader how to formulate the research question the deployment will address, how to develop prototypes, and manage and deploy them successful. The chapter will finish with exemplar case studies of real world sensor deployments. Study Design – The Right QuestionHome Deployment ElementsHome Deployment ManagementThe Prototyping Design ProcessCase Studies Chapter 9: Body Worn and Ambient Sensor Applications for Assessment, Monitoring, and Diagnostics Chapter Goal: Reader should at the end of this chapter have an understanding of the key characteristics of how body worn and ambient sensor applications, and how they vary according to the domain in which they are deployed. The reader will be presented with the key challenges faced in each domain, and emerging solutions for these challenges. 1. Drivers and Inhibitors (Incidence of chronic diseases, aging demographics, Adjusting provider compensation, prevention, medical work practice changes) 2. Hospital based sensing for assessment and diagnosis 3. Supervised Assessment and Monitoring in Community Settings 4. Home Based Applications o Clinical grade sensing for patient monitoring o Body worn sensing (e.g. PERS) for monitoring and

Advanced Biosignal Processing and Diagnostic Methods
Author : Christoph Hintermüller
Publisher : BoD – Books on Demand
Release Date : 2016-07-21
ISBN 10 : 9535125192
Pages : 148 pages
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Personal health and well-being was and is important for all individuals. This includes the way people are living, what they do to stay healthy as well as a profound, well-informed diagnosis and appropriate treatment in case of disease. To achieve these goals, modern medicine is provided with a large variety of tools to assess a patient's health state and collect the information required for a proper diagnosis and treatment, which is tailored to the patient's needs. Many of these available tools use signals either generated by the human body, for example, electroencephalogram (EEG) and electrocardiogram (ECG), or by interacting with the human body while traversing it like microwaves or reflected visible light that is recorded by a video camera. The biosignals recorded by the available and newly developed methods have to be processed to extract the information about the patient's condition and, analyzed tissue and cells. This book presents a small selection of the recent developments in the field of biosignal processing. The covered diagnostic tools and methods include the assessment of respiratory state through gait analysis, the contactless monitoring of cardiovascular and respiratory parameters using microwaves, a non-linear approach to extract the fetal ECG from non-invasive abdominal recordings, identification of epileptic networks from pre-surgical neurophysiological recordings and an improved method to obtain and validate the copy number alterations parameter, which are considered an important marker in cancer classification.

Ultra-Wideband and 60 GHz Communications for Biomedical Applications
Author : Mehmet R. Yuce
Publisher : Springer Science & Business Media
Release Date : 2013-10-16
ISBN 10 : 1461488966
Pages : 261 pages
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​ This book investigates the design of devices, systems, and circuits for medical applications using the two recently established frequency bands: ultra-wideband (3.1-10.6 GHz) and 60 GHz ISM band. These two bands provide the largest bandwidths available for communication technologies and present many attractive opportunities for medical applications. The applications of these bands in healthcare are wireless body area network (WBAN), medical imaging, biomedical sensing, wearable and implantable devices, fast medical device connectivity, video data transmission, and vital signs monitoring. The recent technological advances and developments proposed or used in medicine based on these two bands are covered. The book introduces possible solutions and design techniques to efficiently implement these systems in medical environment. All individual chapters are written by leading experts in their fields. Contributions by authors are on various applications of ultra-wideband and the 60 GHz ISM band including circuit implementation, UWB and 60 GHz signal transmission around and in-body, antenna design solution, hardware implementation of body sensors, UWB transceiver design, 60 GHz transceiver design, UWB radar for contactless respiratory monitoring, and ultra-wideband based medical Imaging. The book will be a key resource for medical professionals, bio-medical engineers, and graduate and senior undergraduate students in computer, electrical, electronic and biomedical engineering disciplines.