OBJECTIVES Firearm is a common source of impulse noise that may potentially damage hearing organ. It has been suggested that otoacoustic emissions, particularly transient-evoked otoacoustic emissions (TEOAE), might be more sensitive than pure-tone audiometry (PTA) in the assessment of changes to cochlea caused by noise. The aim of this study was to: (i) evaluate exposure to impulse noise from s...

Reverberation Time (T60) is an important measure for characterizing the properties of a room. The author’s T60 estimation algorithm was previously tested on simulated data where the noise is artificially added to the speech after convolution with a impulse responses simulated using the image method. We test the algorithm on speech convolved with real recorded impulse responses and noise from th...

Influence of the impulse noise in recurrent Track-Before-Detect Algorithms is considered in this paper. Impulse noise from the object should improve tracking performance but it is not true. This is the SNR paradox that could be explained using Markov matrix theorem. Suppression of the signal value using threshold techniques improves output SNR. Description of this effect is detailed shown in th...

This Paper Analyze the performance of Unsymmetrical trimmed median, which is used as detector for the detection of impulse noise, Gaussian noise and mixed noise is proposed. The proposed algorithm uses a fixed 3x3 window for the increasing noise densities. The pixels in the current window are arranged in sorting order using a improved snake like sorting algorithm with reduced comparator. The pr...

The interaction of noise with a variety of other agents and with some physical characteristics of the individual to produce noise-induced hearing loss is reviewed critically. The review is restricted, for the most part, to publications since 1970. Other agents interacting with steady-state noise that are reviewed here include: (1) ototoxic drugs (kanamycin, neomycin, ethacrynic acid, furosemide...

In this paper, we first briefly review the main operational aspects of FTTC (xPON)/VDSL2 access networks. Then, we present performance measurements with respect to network sub loop operating length and VDSL2 operational profiles (8b, 12a, 17a), studying the rates that can be achieved at different scenarios. We then provide results of the effect of stationary crosstalk and non-stationary impulse...

By exhaustive study of image restoration and noise detection, we find Trilateral filter proposed by Garnett, Huegerich and Chui [13] an extension to the bilateral filter [1] [11] shows remarkable result while denoising digital images corrupted with mixed noise. Further Dong, Raymond H. Chan, and Shufang Xu [17] improved this trilateral filter for images corrupted with impulse noise having more ...

Existing state-of-the-art switching-based median filters are commonly found to be nonadaptive to noise density variations and prone to misclassifying pixel characteristics at high noise density interference. This reveals the critical need of having a sophisticated switching scheme and an adaptive weighted median filter. We propose a novel switching-based median filter with incorporation of fuzz...

Based on a simple impulse detector, an iterative self-adaptive algorithm to impulsive noise filtering for color images is presented in this paper. First, a simple but effective impulse detector is used in detecting the noise pixels in color images. Then, if a pixel is detected as a corrupted one according to the impulse detector, the proposed filter will select a suitable pixel in the predefine...

Noise filtering is the fundamental pre-processing step for digital images. In this paper we present a novel method in which the uncertainties of fuzzy membership function is modeled to reduce and the concept of this reduced uncertainties is used to detect the impulse corrupted pixels of digital images. Taking an interval instead of using a crisp value of membership function deals better with th...