2-D Median Filter-Based Impulsive Noise Reduction in Multifrequency Phase-sensitive Demodulation of Electrical Impedance Tomography

2020 ◽  
Vol 69 (1) ◽  
pp. 54-64 ◽  
Author(s):  
Zhenhua Hao ◽  
Ziqiang Cui ◽  
Shihong Yue ◽  
Huaxiang Wang
Keyword(s):  
Noise Reduction ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Impulsive Noise ◽  
Median Filter ◽  
Impedance Tomography ◽  
Phase Sensitive ◽  
Impulsive Noise Reduction

Noise Reduction of Electrical Impedance Tomography via Movable Electrodes

2007 ◽  
Vol 35 (5) ◽  
pp. 543-550 ◽  
Author(s):  
Cheng‐Ning Huang ◽  
Fang‐Ming Yu ◽  
Po‐Chan Shih ◽  
Hung‐Yuan Chung
Keyword(s):  
Noise Reduction ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Impedance Tomography

scholarly journals New filtering technique for the impulsive noise reduction in color images

2004 ◽  
Vol 2004 (1) ◽  
pp. 79-91 ◽  
Author(s):  
B. Smolka ◽  
A. Chydzinski ◽  
K. N. Plataniotis ◽  
A. N. Venetsanopoulos
Keyword(s):  
Noise Reduction ◽  
Impulsive Noise ◽  
Median Filter ◽  
Computationally Efficient ◽  
Noise Component ◽  
Fuzzy Membership Functions ◽  
Novel Approach ◽  
Filtering Technique ◽  
Vector Median ◽  
Impulsive Noise Reduction

We present a novel approach to the problem of impulsive noise reduction for colorimages. The new image-filtering technique is based on the maximization of the similarities between pixels in the filtering window. Themethod is able to remove the noise component, while adapting itself to the local image structure. In this way, the proposed algorithm eliminates impulsive noise while preserving edges and fine image details. Since the algorithm can be considered as a modification of the vector median filter driven by fuzzy membership functions, it is fast, computationally efficient, and easy to implement. Experimental results indicate that the new method is superior, in terms of performance, to algorithms commonly used for impulsive noise reduction.

CALIBRATION OF A LOW COST ELECTRICAL IMPEDANCE TOMOGRAPHY SYSTEM WITH A RING OF RESISTORS AND A KCL SOLUTION

2019 ◽  
Author(s):  
Bruno Furtado de Moura ◽  
francisco sepulveda ◽  
Jorge Luis Jorge Acevedo ◽  
Wellington Betencurte da Silva ◽  
Rogerio Ramos ◽  
...  
Keyword(s):  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Low Cost ◽  
Impedance Tomography ◽  
Tomography System
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