Sensor Fusion in Human Cyber Sensor System for Motion Artifact Removal from NIRS Signal

2019 ◽  
Author(s):  
Masudur R. Siddiquee ◽  
Tao Xue ◽  
J. Sebastian Marquez ◽  
Roozbeh Atri ◽  
Rodrigo Ramon ◽  
...  
Keyword(s):  
Sensor Fusion ◽  
Motion Artifact ◽  
Sensor System ◽  
Artifact Removal ◽  
Nirs Signal

A Motion Artifact Reduction Method in Cerebrovascular DSA Sequence Images

2018 ◽  
Vol 32 (08) ◽  
pp. 1854022
Author(s):  
Guanglei Wang ◽  
Pengyu Wang ◽  
Yan Li ◽  
Tianqi Su ◽  
Xiuling Liu ◽  
...  
Keyword(s):  
Heart Disease ◽  
Image Enhancement ◽  
Vascular System ◽  
Motion Artifact ◽  
Artifact Reduction ◽  
Artifact Removal ◽  
Guided Filtering ◽  
Fully Automatic ◽  
Automated Processes

Digital Subtraction Angiography (DSA) can be used for diagnosing the pathologies of vascular system including systemic vascular disease, coronary heart disease, arrhythmia, valvular disease and congenital heart disease. Previous studies have provided some image enhancement algorithms for DSA images. However, these studies are not suitable for automated processes in huge amounts of data. Furthermore, few algorithms solved the problems of image contrast corruption after artifact removal. In this paper, we propose a fully automatic method for cerebrovascular DSA sequence images artifact removal based on rigid registration and guided filter. The guided filtering method is applied to fuse the original DSA image and registered DSA image, the results of which preserve clear vessel boundary from the original DSA image and remove the artifacts by the registered procedure. The experimental evaluation with 40 DSA sequence images shows that the proposed method increases the contrast index by 24.1% for improving the quality of DSA images compared with other image enhancement methods, and can be implemented as a fully automatic procedure.

Motion Artifact Removal in Ambulatory ECG Signal for Heart Rate Variability Analysis

2019 ◽  
Vol 19 (24) ◽  
pp. 12432-12442 ◽  
Author(s):  
Deepak Berwal ◽  
Vandana C.R. ◽  
Sourya Dewan ◽  
Jiji C.V. ◽  
Maryam Shojaei Baghini
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Motion Artifact ◽  
Heart Rate Variability Analysis ◽  
Ecg Signal ◽  
Artifact Removal ◽  
Variability Analysis ◽  
Ambulatory Ecg
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