搜索结果: 1-15 共查到“wavelets”相关记录35条 . 查询时间(0.092 秒)
2017SPIE小波和稀疏光学专题会议（Wavelets and Sparsity XVII）。
The Use of Wavelets for Noise Detection in the Images Taken by the Analog and Digital Photogrammetric Cameras
Noise Wavelets Transform Decomposition Detail Component Kurtosis Variance
2015/11/20
In the paper the use of wavelet transformation for valorization of random noise content in photogrammetric images is proposed. There were two wavelets indicators studied. The first indicators based on...
Wavelets and the theory of non-parametric function estimation
Pinsker’s theorem sparsity statistical decision problem
2015/8/20
Non-parametric function estimation aims to estimate or recover or denoise a function
of interest, perhaps a signal, spectrum or image, that is observed in noise and possibly
indirectly after some tr...
The Effects of Different Types of Wavelets on Image Fusion
fusion integration multiresolution
2015/7/9
Image fusion is a tool for integrating a high-resolution panchromatic image with a multispectral image, in which the
resulting fused image contains both the high-resolution spatial information of the...
An Implementation of Rational Wavelets and Filter Design for Phonetic Classification
Filter design phonetic classification rational wavelets
2014/11/27
Although wavelet analysis has been proposed for speech processing as an alternative to Fourier analysis, most approaches make use of off-the-shelf wavelets and dyadic tree-structured filter banks. In ...
Keyed Side-Channel Based Hashing for IP Protection using Wavelets
IP Protection Embedded Systems
2014/3/12
The protection of intelligent property (IP) is a challenging task, especially in secured embedded systems where program code that is supposed to be a plagiarism cannot be simply read-out for further i...
Multi-Temporal Analysis of Remotely Sensed Information Using Wavelets
Land Use/Cover Change Disturbs Vegetation Dynamic MODIS NDVI Series Wavelet Transform
2013/3/5
Land cover changes (LCC) are an important component of Global Change. LCC can be described not only by its occurrence, but also by the land cover replacement, causal agent and change duration or recup...
Nonstationary Wavelets Related to the Walsh Functions
Walsh Functions Nonstationary Dyadic Wavelets Fractal Functions Adapted Multiresolution Analysis
2013/1/30
Using the Walsh-Fourier transform, we give a construction of compactly supported nonstationary dyadic wavelets on the positive half-line. The masks of these wavelets are the Walsh polynomials defined ...
On the Hilbert transform of wavelets
Hilbert transform wavelets localization vanishing moments
2011/9/19
Abstract: A wavelet is a localized function having a prescribed number of vanishing moments. In this correspondence, we provide precise arguments as to why the Hilbert transform of a wavelet is again ...
A dynamic hybrid model based on wavelets and fuzzy regression for time series estimation
Financial time series Wavelet decomposition Fuzzy regression SP500 index
2011/3/23
In the present paper, a fuzzy logic based method is combined with wavelet decomposition to develop a step-by-step dynamic hybrid model for the estimation of financial time series. Empirical tests on f...
A dynamic hybrid model based on wavelets and fuzzy regression for time series estimation
Financial time series Wavelet decomposition Fuzzy regression SP500 index
2011/3/25
In the present paper, a fuzzy logic based method is combined with wavelet decomposition to develop a step-by-step dynamic hybrid model for the estimation of financial time series. Empirical tests on ...
Wavelets with Ridges: A High-Resolution Representation of Cataclysmic Variable Time-Series
methods data analysis — techniques photometric
2010/11/12
Quasi-periodic oscillations and dwarf nova oscillations occur in dwarf novae and nova-like variables during outburst and occasionally during quiescence, and have analogues in high-mass X-ray binaries ...
Constructing pairs of dual bandlimited frame wavelets in $L^2(\mathbb{R}^n)$
real and expansive dilation matrix bandlimited wavelets dual frames
2010/12/10
Given a real, expansive dilation matrix we prove that any bandlimited function ∈ L2(Rn), for which the dilations of its Fourier transform form a partition of unity, generates a wavelet frame for cer...
Wavelets and framelets from dual pseudo splines
Dual pseudo splines Riesz wavelet basis Tight wavelet frame.
2018/4/19
Dual pseudo splines constitute a new class of refinable functions with B-splines as special examples, which was introduced in [8]. In this paper, we shall construct Riesz wavelet associated with dual ...
Comparison of daubechies wavelets for hurst parameter estimation
Daubechies wavelets fractional gaussian noise hurst estimation vanishing moment
2010/10/12
Time scale dependence on the working nature of wavelet analysis makes it a valuable tool for Hurst parameter estimation. Similar to other wavelet-based signal processing applications, the selection of...