Results 61 to 70 of about 26,801 (192)

Wavelet Based on Satellite Image Resolution Enhancement [PDF]

, 2015
Satellite images are being used in many fields of research. Satellite images are being used in many applications like Meteorology, Agriculture, Geology, Forestry, Landscape, Biodiversity, Planning, Instruction, Area and oceanography.
Arora, S. (Sonika), Gupta, A. (Aparna)
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New Algorithm For Calculating Wavelet Transforms [PDF]

Journal of Systemics, Cybernetics and Informatics, 2009
In this article we introduce a new algorithm for computing Discrete Wavelet Transforms (DWT). The algorithm aims at reducing the number of multiplications, required to compute a DWT.
Piotr Lipinski, Mykhaylo Yatsymirskyy
doaj  

Joint Wavelet and Sine Transforms for Performance Enhancement of OFDM Communication Systems

Mathematics
This paper presents a modified Orthogonal Frequency Division Multiplexing (OFDM) system that combines Discrete Wavelet Transform (DWT) with Discrete Sine Transform (DST) to enhance data rate capacity over traditional Discrete Fourier Transform (DFT ...
Khaled Ramadan, Ibrahim Aqeel, Emad S. Hassan   +2 more
doaj   +1 more source

Wavelet Estimation of Time Series Regression with Long Memory Processes [PDF]

This paper studies the estimation of time series regression when both regressors and disturbances have long memory. In contrast with the frequency domain estimation as in Robinson and Hidalgo (1997), we propose to estimate the same regression model with ...
Haibin Wu
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Performance of Discrete Wavelet Transform (DWT) Based Speech Denoising in Impulsive and Gaussian Noise

Journal of Engineering and Sustainable Development, 2006
The aim of this paper is to investigate the effect of impulsive noise on the performance of the speech denoising using Discrete Wavelet Transform (DWT).
Fadel S. Hassen
doaj  

Using Discrete Wavelet Transform to Model Whistle Contours for Dolphin Species Classification

Proceedings, 2018
This work proposes the use of features based on the discrete wavelet transform (DWT) for dolphin species classification. These features are compared with other previously used in the literature, and the experiments carried out in a database featuring ...
Paula Lopez-Otero, Laura Docio-Fernandez, Antonio Cardenal-López   +2 more
doaj   +1 more source

Perceptual Copyright Protection Using Multiresolution Wavelet-Based Watermarking And Fuzzy Logic

, 2010
In this paper, an efficiently DWT-based watermarking technique is proposed to embed signatures in images to attest the owner identification and discourage the unauthorized copying.
Hsieh, Ming-Shing
core   +3 more sources

Steganografi Pada Citra Digital Menggunakan Metode Discrete Wavelet Transform [PDF]

, 2013
Kemudahan pertukaran informasi melalui internet memiliki sisi positif dan negatif. Sisi positifnya adalah kemudahan mengetahui berbagai informasi.
Ali Mustofa, ST., MT., Dzikru Rohmatul Iza., Ir. Muhammad Aswin, MT
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Penentuan Notasi Gamelan Rindik Menggunakan Metode Transformasi Wavelet

Majalah Ilmiah Teknologi Elektro, 2018
—This paper present about recognition of gamelan rindik pattern using wavelet transform. Wavelet transform is used to find the special characteristic of gamelan rindik, which had previously been recorded and stored in computer with format *.wav. The data
I Gusti Made Meri Utama Yasa, Linawati Linawati, N Paramaita   +2 more
doaj   +1 more source

An optimal factor analysis approach to improve the wavelet-based image resolution enhancement techniques [PDF]

, 2016
The existing wavelet-based image resolution enhancement techniques have many assumptions, such as limitation of the way to generate low-resolution images and the selection of wavelet functions, which limits their applications in different fields.
Jenkins, Karl W., Witwit, Wasnaa, Zhao, Yifan, Zhao, Yitian   +3 more
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