Results 21 to 30 of about 85,041 (313)
Wavelet-Based Algorithm for Signal Analysis
EURASIP Journal on Advances in Signal Processing, 2007 This paper presents a computational algorithm for identifying power frequency variations and integer harmonics by using wavelet-based transform. The continuous wavelet transform (CWT) using the complex Morlet wavelet (CMW) is adopted to detect the ...
Lai LL, Tse Norman CF
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Multi-focus Image Fusion Based on Non-subsampled Discrete Wavelet Transform
Journal of Harbin University of Science and Technology, 2018 Image fusion is widely used in military，medical and other fields. Image fusion technology is to use a specific algorithm to synthesize two or more images into a new image.
GUO Ling-xin, YUAN Li-ying, WANG Fei-yue
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On the Analytic Wavelet Transform [PDF]
IEEE Transactions on Information Theory, 2010 An exact and general expression for the analytic wavelet transform of a real-valued signal is constructed, resolving the time-dependent effects of non-negligible amplitude and frequency modulation. The analytic signal is first locally represented as a modulated oscillation, demodulated by its own instantaneous frequency, and then Taylor-expanded at ...
Jonathan M. Lilly, Sofia C. Olhede
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Continuous wavelet transform and neural network for condition monitoring of rotodynamic machinery [PDF]
, 2001 This paper describes a novel method of rotodynamic machine condition monitoring using a wavelet transform and a neural network. A continuous wavelet transform is applied to the signals collected from accelerometer.
B.E. Jones +7 more
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Wavelets on the Interval and Fast Wavelet Transforms
Applied and Computational Harmonic Analysis, 1993 The paper contains a detailed analysis of several constructions of orthonormal bases of wavelets on a finite interval. A new construction is suggested which avoids some of the disadvantages of earlier constructions.
Cohen, Albert +2 more
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An improved wavelet-ARIMA approach for forecasting metal prices [PDF]
, 2014 Metal price forecasts support estimates of future profits from metal exploration and mining and inform purchasing, selling and other day-to-day activities in the metals industry.
Angus, Andrew +3 more
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Optimal decomposition level of discrete, stationary and dual tree complex wavelet transform for pixel based fusion of multi-focused images [PDF]
Serbian Journal of Electrical Engineering, 2010 The fast development of digital image processing leads to the growth of feature extraction of images which leads to the development of Image fusion. The process of combining two different images into a new single image by retaining salient features from ...
Kannan Kanagaraj +2 more
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The Reproducing Kernel Function for the Image Space of a Limited Spectrum Wavelet Transform
Journal of Harbin University of Science and Technology, 2017 In order to describe the nature of image space of the wavelet transform and a limited spectrum and decay faster wavelet，this paper uses Shannon scaling function to construct a wavelet function，take advantage of wavelet analysis theory to give the nature ...
DENG Cai-xia, HE Peng, CHEN Xia-xia
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Non-decimated Wavelet Transform for a Shift-invariant Analysis
Trends in Computational and Applied Mathematics, 2018 Due to the ability of time-frequency location, the wavelet transform has been applied in several areas of research involving signal analysis and processing, often replacing the conventional Fourier transform.
Gabriela de Oliveira Nascimento Brassarote +2 more
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IET Image Processing, 2018 The gyrator transform is a linear canonical transform, which generates the rotation of an optical signal in position‐spatial frequency planes. Gyrator wavelet transform is a relatively newer optical information processing tool obtained by combining the gyrator transform with the wavelet transform.
Isha Mehra +2 more
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