Super-resolution spectral estimation in short-time non-contact vital sign measurement

2015 ◽  
Vol 86 (4) ◽  
pp. 044708 ◽  
Author(s):  
Li Sun ◽  
Yusheng Li ◽  
Hong Hong ◽  
Feng Xi ◽  
Weidong Cai ◽  
...  
Keyword(s):  
Vital Sign ◽  
Spectral Estimation ◽  
Super Resolution ◽  
Vital Sign Measurement ◽  
Short Time

Modified regularised spectral estimation in short-time-recorded data

1995 ◽  
Vol 31 (17) ◽  
pp. 1413-1415 ◽  
Author(s):  
Jun-Seok Lim ◽  
K.M. Sung ◽  
Han-Su Kim
Keyword(s):  
Spectral Estimation ◽  
Recorded Data ◽  
Short Time

Advance Monitoring of Blood Pressure and Respiratory Rate Using De-Noising Auto Encoder

2021 ◽  
Author(s):  
Seung-Ho Park ◽  
Kyoung-Su Park
Keyword(s):  
Blood Pressure ◽  
Respiratory Rate ◽  
Vital Sign ◽  
Superficial Temporal Artery ◽  
Vital Signs ◽  
Pulse Signal ◽  
Temporal Artery ◽  
Sinus Arrhythmia ◽  
Vital Signs Monitoring ◽  
Vital Sign Measurement

Abstract As the importance of continuous vital signs monitoring increases, the need for wearable devices to measure vital sign is increasing. In this study, the device is designed to measure blood pressure (BP), respiratory rate (RR), and heartrate (HR) with one sensor. The device is in earphone format and is manufactured as wireless type using Arduino-based bluetooth module. The device measures pulse signal in the Superficial temporal artery using Photoplethysmograghy (PPG) sensor. The device uses the Auto Encoder to remove noise caused by movement, etc., contained in the pulse signal. Extract the feature from the pulse signal and use them for the vital sign measurement. The device is measured using Slope transit time (STT) method for BP and Respiratory sinus arrhythmia (RSA) method for RR. Finally, the accuracy is determined by comparing the vital signs measured through the device with the reference vital signs measured simultaneously.

SAR Super-Resolution Imaging Method Based on Spectral Estimation

2017 ◽  
pp. 445-490
Author(s):  
Ruliang Yang ◽  
Haiying Li ◽  
Shiqiang Li ◽  
Ping Zhang ◽  
Lulu Tan ◽  
...  
Keyword(s):  
Spectral Estimation ◽  
Super Resolution ◽  
Imaging Method ◽  
Resolution Imaging

scholarly journals A Novel Vital-Sign Sensing Algorithm for Multiple Subjects Based on 24-GHz FMCW Doppler Radar

2019 ◽  
Vol 11 (10) ◽  
pp. 1237 ◽  
Author(s):  
Hyunjae Lee ◽  
Byung-Hyun Kim ◽  
Jin-Kwan Park ◽  
Jong-Gwan Yook
Keyword(s):  
Vital Sign ◽  
Continuous Wave ◽  
Doppler Radar ◽  
Spectral Estimation ◽  
Estimation Method ◽  
Vital Signs ◽  
Phase Information ◽  
Multiple Targets ◽  
Wave Radar ◽  
24 Ghz

A novel non-contact vital-sign sensing algorithm for use in cases of multiple subjects is proposed. The approach uses a 24 GHz frequency-modulated continuous-wave Doppler radar with the parametric spectral estimation method. Doppler processing and spectral estimation are concurrently implemented to detect vital signs from more than one subject, revealing excellent results. The parametric spectral estimation method is utilized to clearly identify multiple targets, making it possible to distinguish multiple targets located less than 40 cm apart, which is beyond the limit of the theoretical range resolution. Fourier transformation is used to extract phase information, and the result is combined with the spectral estimation result. To eliminate mutual interference, the range integration is performed when combining the range and phase information. By considering breathing and heartbeat periodicity, the proposed algorithm can accurately extract vital signs in real time by applying an auto-regressive algorithm. The capability of a contactless and unobtrusive vital sign measurement with a millimeter wave radar system has innumerable applications, such as remote patient monitoring, emergency surveillance, and personal health care.

Effect of vital sign measurement timing on Pulmonary Embolism Severity Index (PESI) and simplified PESI 30-day mortality risk determination

2016 ◽  
Vol 141 ◽  
pp. 8-10 ◽  
Author(s):  
Heather M. Rozjabek ◽  
Craig I. Coleman ◽  
Erin R. Weeda ◽  
W. Frank Peacock ◽  
Gregory J. Fermann ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Mortality Risk ◽  
Vital Sign ◽  
Severity Index ◽  
Vital Sign Measurement

Modified early warning scores have an equivocal effect on frequency of vital sign measurement

2011 ◽  
Vol 24 (1) ◽  
pp. 59
Author(s):  
N. Hammond ◽  
A. Spooner ◽  
A. Barnett ◽  
A. Corley ◽  
J. Fraser
Keyword(s):  
Early Warning ◽  
Vital Sign ◽  
Early Warning Scores ◽  
Vital Sign Measurement
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