نتایج جستجو برای: wavelet packet transform wpt

تعداد نتایج: 177471  

Journal: :journal of medical signals and sensors 0
fatemeh hajiaghababa saeed kermani hamidreza marateb

a cochlear implant is an implanted electronic device used to provide a sensation of hearing to a person who is hard of hearing. the cochlear implant is often referred to as a bionic ear. this paper presents an undecimated wavelet‑based speech coding strategy for cochlear implants, which gives a novel speech processor. the undecimated wavelet packet transform (uwpt) is computed like the wavelet ...

2004
P. Kumhom K. Chamnongthai

This paper proposes a watermarking embedding and extracting methods in the frequency domain based on a selection of a high frequency range containing large amount of information. The selected high-frequency range contributes to the imperceptibility of the watermark while the robustness against compression is achieved because the selected frequency range contains large amount of information. The...

2012
T. Abu Hilal

In the proposed work, the techniques of wavelet transform (WT) and neural network were introduced for speech based text-independent speaker identification and Arabic vowel recognition. The linear prediction coding coefficients (LPCC) of discrete wavelet transform (DWT) upon level 3 features extraction method was developed. Feature vector fed to probabilistic neural networks (PNN) for classifica...

Journal: :Measurement 2022

Deep learning has achieved significant advances in the fault diagnosis of rotating machinery. However, it still suffers many challenges such as various working conditions, large environmental noise interference and insufficient effective data samples. Signal time–frequency analysis feature transfer methods can help solve these problems. Combining wavelet packet transform (WPT) multi-kernel maxi...

Journal: :International Journal of Mineral Processing and Extractive Metallurgy 2017

Journal: :The Journal of the Acoustical Society of America 1994

ژورنال: مهندسی دریا 2018

This paper investigates an underwater noise target classification algorithm in order to identify vessels in shallow water. To this aim the Hilbert Huang transform has been used to extract features in order to be used in a classifier. The Support Vector Machine has been considered to identify targets. The proposed method based on Hilbert Huang Transform shows considerable gain against similar ap...

Journal: :Journal of Nonlinear Sciences and Applications 2013

Journal: :Applied and Computational Harmonic Analysis 2008

2010
K. Kannan S. Arumuga Perumal K. Arulmozhi

Image fusion is defined as the process of combining two or more different images into a new single image retaining important features from each image with extended information content. There are two approaches to image fusion, namely Spatial Fusion and Transform fusion. In Spatial fusion, the pixel values from the source images are directly summed up and taken average to form the pixel of the c...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید