Results 71 to 80 of about 1,497,924 (152)

Bearing fault detection in a 3 phase induction motor using stator current frequency spectral subtraction with various wavelet decomposition techniques

Ain Shams Engineering Journal, 2018
Induction motors consumes 90% of total power consumed by industries due to large scale utilisation. Even though these motors are rugged in structure, they often face unexpected failure due to long usage without maintenance.
K.C. Deekshit Kompella, Mannam Venu Gopala Rao, Rayapudi Srinivasa Rao   +2 more
doaj   +1 more source

The Application of Discrete Wavelet Transform with Improved Partial Least-Squares Method for the Estimation of Soil Properties with Visible and Near-Infrared Spectral Data

Remote Sensing, 2018
This study evaluated whether wavelet functions (Bior1.3, Bior2.4, Db4, Db8, Haar, Sym4, and Sym8) and decomposition levels (Levels 3–8) can estimate soil properties. The analysis is based on the discrete wavelet transform with partial least-squares
Guoqiang Wang, Wei Wang, Qingqing Fang, Hong Jiang, Qinchuan Xin, Baolin Xue   +5 more
doaj   +1 more source

A New Folded Architecture for 2-D Discrete Wavelet Transform

, 2012
[[abstract]]Discrete wavelet transform (DWT) is a very useful tool for several applications, including signal coding, signal analysis, and image compression.
林誠偉; 張孟洲
core  

Wavelet—Artificial Neural Network Receiver for Indoor Optical Wireless Communications [PDF]

, 2011
The multipath induced intersymbol interference (ISI) and fluorescent light interference (FLI) are the two most important system impairments that affect the performance of indoor optical wireless communication (OWC) systems.
Ghassemlooy, Zabih, M. Angelova, Z. Ghassemlooy, Angelova, Maia, Rajbhandari, Sujan, S. Rajbhandari   +5 more
core   +1 more source

Evaluating The Performance of DWT-DCT Feature Extraction in Guitar Chord Recognition

International Journal of Applied Sciences and Smart Technologies
This study presents advancements in audio signal processing techniques, specifically in enhancing the efficiency of guitar chord recognition. It is a continuation of the previous studies, which also aim at minimizing the feature extraction length with ...
Linggo Sumarno
doaj   +1 more source

Signal-to-Noise Ratio Improvement based on the Discrete Wavelet Transform in Ultrasonic Defectoscopy

Acta Polytechnica, 2004
In ultrasonic testing it is very important to recognize the fault echoes buried in a noisy signal. The fault echo characterizes a flaw in the material.
V. Matz, M. Kreidl, R. Šmíd
doaj  

Medical Image Retrieval Using Transforms [PDF]

Applied Medical Informatics, 2013
The purpose of this study is to access the stability of transformation methods for medical image analysis. The reason for image retrieval is due to the increase in acquisition of images.
Mannivannan VASUKI, Swarnambiga AYYACHAMY   +1 more
doaj  

EFFECTIVE MULTI-RESOLUTION TRANSFORM IDENTIFICATION FOR CHARACTERIZATION AND CLASSIFICATION OF TEXTURE GROUPS [PDF]

ICTACT Journal on Image and Video Processing, 2011
Texture classification is important in applications of computer image analysis for characterization or classification of images based on local spatial variations of intensity or color.
S. Arivazhagan, L. Ganesan, C.N. Savithri   +2 more
doaj  

An Iterative Detection Aided Unequal Error Protection Wavelet Video Scheme Using Irregular Convolutional Codes

, 2006
A wavelet-based videophone scheme proposed, where the video bits are Unequal Error Protection (UEP) using Irregular Convolutional Codes (IRCCs). The proposed system uses Adaptive Arithmetic Coding (AAC) for encoding the motion vectors and individual ...
Pham, A.Q., Wang, J., Yang, L-L., Hanzo, L.   +3 more
core   +1 more source

GABUNGAN SLT-DCT UNTUK STEGANOGRAFI PENGAMANAN DATA GAMBAR PENYAKIT

Techno.Com, 2014
Makalah ini mengusulkan metode steganografi untuk mengamankan data gambar penyakit. Data gambar penyakit yang digunakan sebagai gambar induk merupakan hasil CT-Scan dan endokopi, yaitu brain.jpg dan endoscopic.jpg.
Eko Hari Rachmawanto, Christy Atika Sari
doaj