Impulse noise reduction from corrupted images using lifting wavelet filters

2000 ◽  
Author(s):  
Shigeru Takano ◽  
Koichi Kuzyme ◽  
Koichi Niijima
Keyword(s):  
Noise Reduction ◽  
Impulse Noise ◽  
Wavelet Filters ◽  
Lifting Wavelet

scholarly journals Study and Analysis of Impulse Noise Reduction Filters

2011 ◽  
Vol 2 (1) ◽  
pp. 82-92 ◽  
Author(s):  
Geoffrine Judith.M.C ◽  
N Kumarasabapathy
Keyword(s):  
Noise Reduction ◽  
Impulse Noise

scholarly journals An efficient Scheme to Remove Low Density Impulse Noise From A Digital Image

2016 ◽  
Vol 15 (12) ◽  
pp. 7284-7289
Author(s):  
Dr. Jihad N. Abdeljalil Al-Balqa
Keyword(s):  
Noise Reduction ◽  
Impulse Noise ◽  
Low Density ◽  
Salt And Pepper Noise ◽  
Reduction Scheme ◽  
Iir Filter ◽  
Noise Impulse ◽  
Efficient Scheme ◽  
Adaptive Noise ◽  
Salt And Pepper

An improved adaptive noise reduction scheme for images that are highly corrupted by Salt-and-Pepper noise(impulse noise), is proposed in this paper which efficiently removes the salt and pepper noise while preserving the details. The proposed scheme efficiently identifies and reduces salt and pepper noise. The algorithm utilizes an IIR filter with controlled parameters to get better image quality than the existing methods of noise removing. A comparative analysis between the proposed scheme and other techniques of noise reduction or removing is presented in order to show the advantages of the proposed scheme in removing the noisy pixels and producing a better PSNR.

Automatic Detection of Geomagnetic Sudden Commencement Using Lifting Wavelet Filters

1999 ◽  
pp. 242-251 ◽  
Author(s):  
Shigeru Takano ◽  
Teruya Minamoto ◽  
Hiroki Arimura ◽  
Koichi Niijima ◽  
Toshihiko Iyemori ◽  
...  
Keyword(s):  
Automatic Detection ◽  
Sudden Commencement ◽  
Wavelet Filters ◽  
Lifting Wavelet ◽  
Geomagnetic Sudden Commencement

Angle dependent effects for impulse noise reduction for hearing protectors.

2009 ◽  
Vol 126 (4) ◽  
pp. 2218
Author(s):  
William J. Murphy ◽  
Amir Khan ◽  
Edward L. Zechmann
Keyword(s):  
Noise Reduction ◽  
Impulse Noise ◽  
Hearing Protectors

scholarly journals Theoretical studies on the calculation of the noise of impact equipment in blacksmith shops

2020 ◽  
Vol 164 ◽  
pp. 01030 ◽  
Author(s):  
Elena Staseva ◽  
Dmitry Larin ◽  
Sergei Demchenko ◽  
Kirill Kobzev
Keyword(s):  
High Temperature ◽  
Noise Reduction ◽  
Impulse Noise ◽  
Theoretical Studies ◽  
Economic Significance ◽  
Temperature Manipulation

Most types of forging equipment relate to impact machines, during the operation of which impulse noise occurs, the levels of which at workplaces, in most cases, exceed the maximum permissible values and relate to those factors, the significance of which in some cases is greater than dustiness, high temperature, manipulation of heated workpieces. Therefore, the problem of reducing vibration and noise in the forge shops is extremely relevant and has great scientific and socio-economic significance. To solve the problem of noise reduction in forge shops, various options for reducing the noise activity of equipment have been developed/ It is possible to most effectively reduce noise by changing the material and shapes of the beds, noise-attenuating casings, oil baths for gears.

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