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Image and Signal Processing for Networked eHealth ApplicationsSignal Processing for Telemedicine Applications

Image and Signal Processing for Networked eHealth Applications: Signal Processing for... CHAP TE R 2 Signal Processing for Telemedicine Applications 2.1 INTRODUCTION TO SIGNAL PROCESSING A very general definition of a signal is a “measurable indication or representation of an actual phenomenon,” which in the field of medical signals refers to observable facts or stimuli of bi- ological systems or life forms. In order to extract and document the meaning or the cause of a signal, a medical practitioner may utilize simple examination procedures, such as measuring the temperature of a human body or have to resort to highly specialized and sometimes intrusive equipment, such as an endoscope. Following signal acquisition practitioners go on to a second step, that of interpreting its meaning, usually after some kind of signal enhancement or “pre- processing” that separates the captured information from noise and prepares it for specialized processing, classification, and recognition algorithms. It is only then that the result of the ac- quisition process reveals the true meaning of the physical phenomenon that produced the signal under investigation. As a general rule, the particular techniques used in all the above mentioned steps depend on the actual nature of the signal and the information it may convey. Signals in medicine-related applications are found http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Image and Signal Processing for Networked eHealth ApplicationsSignal Processing for Telemedicine Applications

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Publisher
Springer International Publishing
Copyright
© Springer Nature Switzerland AG 2006
ISBN
978-3-031-00481-0
Pages
3 –9
DOI
10.1007/978-3-031-01609-7_2
Publisher site
See Chapter on Publisher Site

Abstract

CHAP TE R 2 Signal Processing for Telemedicine Applications 2.1 INTRODUCTION TO SIGNAL PROCESSING A very general definition of a signal is a “measurable indication or representation of an actual phenomenon,” which in the field of medical signals refers to observable facts or stimuli of bi- ological systems or life forms. In order to extract and document the meaning or the cause of a signal, a medical practitioner may utilize simple examination procedures, such as measuring the temperature of a human body or have to resort to highly specialized and sometimes intrusive equipment, such as an endoscope. Following signal acquisition practitioners go on to a second step, that of interpreting its meaning, usually after some kind of signal enhancement or “pre- processing” that separates the captured information from noise and prepares it for specialized processing, classification, and recognition algorithms. It is only then that the result of the ac- quisition process reveals the true meaning of the physical phenomenon that produced the signal under investigation. As a general rule, the particular techniques used in all the above mentioned steps depend on the actual nature of the signal and the information it may convey. Signals in medicine-related applications are found

Published: Jan 1, 2006

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