Accurate dicrotic notch detection using adaptive shear transforms
نویسندگان
چکیده
منابع مشابه
Novel Notch Detection Algorithm for Detection of Dicrotic Notch in PPG Signals
Photoplethysmography (PPG) is a non-invasive optical technique that measures relative blood volume changes in the blood vessels and is widely used for research and physiological studies. Dicrotic notch represent the closure of the aortic semi-lunar valve and subsequent receding blood flow when ventricles relax. Their location is used to calculate systolic time intervals and monitor cardiac func...
متن کاملFPGA Based Digital System for Detection of Dicrotic Notch in the Carotid Pulse Signal
Heart disease is one of the leading causes of death in human beings. A survey shows every year about 900,000 peoples die due to heart diseases worldwide. Carotid pulse is a pressure signal recorded over the carotid artery as it passes near the surface of the body at the neck. An abnormal carotid pulse called the dicrotic pulse occurs when patients suffer from sepsis, hypovolemic shock, cardiac ...
متن کاملDamage Detection in Post-tensioned Slab Using 2D Wavelet Transforms
Earthquake force, loading more than structural capacity, cracking, material fatigue and the other unpredicted events were undeniable in the structure life cycle in order that environmental conditions of the structure would be changed and treats health. Damage of structures such as crack, corrosion of the post tension cables from inappropriate grouting of the post tension structures and etc. can...
متن کاملThe dicrotic notch analyzed by a numerical model
Divergent concepts on the origin of the dicrotic notch are widespread in medical literature and education. Since most medical textbooks explain the origin of the dicrotic notch as caused by the aortic valve closure itself, this is commonly transmitted in medical physiology courses. We present clinical data and numerical simulations to demonstrate that reflected pressure waves could participate ...
متن کاملAdaptive image restoration using discrete polynomial transforms
| This paper presents a restoration algorithm based on a local signal description using discrete polyno-mials. The algorithm is made adaptive by estimating the local signal-to-noise ratio and by computing the corresponding deblurring lter. Furthermore, this method is developed for discrete signals, the input and output images being almost always available as discrete signals.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IFAC-PapersOnLine
سال: 2018
ISSN: 2405-8963
DOI: 10.1016/j.ifacol.2018.11.664