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    Joint Distributions of Arbitrary Variables Made Easy 

    Baraniuk, Richard G. (1998-10-01)
    In this paper, we propose a simple framework for studying certain distributions of variables beyond time-frequency and time-scale. When applicable, our results turn the theory of joint distributions of arbitrary variables ...
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    Low Rank Estimation of Higher Order Statistics 

    Nowak, Robert David; Van Veen, Barry D. (1995-12-01)
    Low rank estimators for higher order statistics are considered in this paper. Rank reduction methods offer a general principle for trading estimator bias for reduced estimator variance. The bias-variance tradeoff is analyzed ...
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    Wavelet-based deconvolution for ill-conditioned systems 

    Neelamani, Ramesh; Choi, Hyeokho; Baraniuk, Richard G. (2000-02-01)
    We propose a hybrid approach to wavelet-based deconvolution that comprises Fourier-domain system inversion followed by wavelet-domain noise suppression. In contrast to other wavelet-based deconvolution approaches, the ...
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    Time Frequency Principal Components: Application to Speaker Identification 

    Magrin-Chagnolleau, Ivan; Durou, Geoffrey (1999-01-01)
    In this paper, we propose a formalism, called vector filtering of spectral trajectories, which allows to integrate under a common formalism a lot of speech parameterization approaches. We then propose a new filtering in ...
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    Nonlinear Wavelet Processing for Enhancement of Images 

    Odegard, Jan E.; Lang, Markus; Guo, Haitao; Gopinath, Ramesh A.; Burrus, C. Sidney (1994-05-20)
    In this note we apply some recent results on nonlinear wavelet analysis to image processing. In particular we illustrate how the (soft) thresholding algorithm due to Donoho and Johnstone can successfully be used to remove ...
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    Image enhancement by nonlinear wavelet processing 

    Odegard, Jan E. (1994-10-20)
    In this paper we describe how the theory of wavelet thresholding introduced by Donoho and Johnstone can successfully be applied to two distinct problems in image processing where traditional linear filtering techniques are ...
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    An Improved Multifractal Formalism and Self Similar Measures 

    Riedi, Rudolf H. (1995-01-01)
    To characterize the geometry of a measure, its so-called generalized dimensions D(<i>q</i>) have been introduced recently. The mathematically precise definition given by Falconer turns out to be unsatisfactory for reasons ...
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    Numerical Estimates of Generalized Dimensions D_q for Negative q 

    Riedi, Rudolf H. (1996-01-01)
    Usual fixed-size box-counting algorithms are inefficient for computing generalized fractal dimensions D(<i>q</i>) in the range of <i>q</i><0. In this Letter we describe a new numerical algorithm specifically devised to ...
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    Wavelet Analysis of Fractional Brownian Motion in Multifractal Time 

    Goncalves, Paulo; Riedi, Rudolf H. (1999-09-20)
    We study <i>fractional Brownian motions in multifractal time</i>, a model for multifractal processes proposed recently in the context of economics. Our interest focuses on the statistical properties of the wavelet decomposition ...
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    Nonstationary Signal Enhancement Using The Wavelet Transform 

    Venkatachalam, Vidya; Aravena, Jorge.L. (1996-03-20)
    Conventional signal processing typically involves frequency selective techniques which are highly inadequate for nonstationary signals. In this paper, we present an approach to perform time-frequency selective processing ...
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    AuthorBaraniuk, Richard G. (17)Riedi, Rudolf H. (12)Magrin-Chagnolleau, Ivan (9)Nowak, Robert David (7)Goncalves, Paulo (6)Odegard, Jan E. (6)Guo, Haitao (5)Lang, Markus (5)Burrus, C. Sidney (4)Jones, Douglas L. (4)... View MoreSubject
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    Wavelet based Signal/Image Processing (16)Multifractals (12)Time Frequency and Spectral Analysis (12)Signal Processing Applications (6)General DSP (2)Signal Processing for Networking (2)Image Processing and Pattern analysis (1)Multiscale Methods (1)... View MoreDate Issued1998 (11)1995 (9)1999 (9)1996 (8)1994 (6)1997 (5)1993 (1)2000 (1)Has File(s)Yes (50)

    Home | FAQ | Contact Us
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892