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检索条件"任意字段=Conference on Wavelet Applications in Signal and Image Processing II"
3130 条 记 录,以下是271-280 订阅
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wavelet despiking of fractographs
Wavelet despiking of fractographs
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conference on wavelet applications in signal and image processing ViiI
作者: Aubry, JM Saito, N Univ Calif Davis Davis CA 95616 USA
Fractographs are elevation maps of the fracture zone of some broken material. The technique employed to create these maps (confocal laser microscopy) often introduces noise composed of positive or negative 'spikes... 详细信息
来源: 评论
Modelling and classification of acoustic pulse signals by wavelet networks
Modelling and classification of acoustic pulse signals by wa...
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1997 IEEE International conference on Acoustics, Speech, and signal processing (ICASSP 97)
作者: Nadaud, S Trouilhet, JF Lab d'Acoustique de Metrologie et d'Instrumentation Toulouse France
This article presents two modelling methods using wavelet networks. Both methods are intended to be used for an acoustic pulse signal classifier. We present a few results obtained with signals coming from a recording ... 详细信息
来源: 评论
Iterative projective wavelet methods for denoising
Iterative projective wavelet methods for denoising
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wavelets - applications in signal and image processing X conference
作者: Fletcher, AK Goyal, VK Ramchandran, K Univ Calif Berkeley Berkeley Audio Visual Signal Proc & Commun Syst G Dept Elect Engn & Comp Sci Berkeley CA 94720 USA
wavelet thresholding is a powerful tool for denoising images and other signals with sharp discontinuities. Using different wavelet bases gives different results, and since the wavelet transform is not time-invariant, ... 详细信息
来源: 评论
Fast fractal image compression with triangulation wavelets
Fast fractal image compression with triangulation wavelets
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conference on wavelet applications in signal and image processing VI
作者: Hebert, DJ Soundararajan, E none (United States)
We address the problem of improving the performance of wavelet based fractal image compression by applying efficient triangulation methods. We construct iterative function systems (IFS) in the tradition of Barnsley an... 详细信息
来源: 评论
Malvar wavelets on sphere
Malvar wavelets on sphere
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4th conference on wavelet applications in signal and image processing
作者: Xia, XG Zhang, L HUGHES RES LABS MALIBUCA 90265
In this paper, Malvar wavelets defined on a unit sphere are introduced. They are constructed by using a similar technique of constructing 2D Malvar wavelets, where one dimension (theta) is periodic on (0, 2(pi) ) and ... 详细信息
来源: 评论
Embedded lossy and lossless image compression based on integer wavelet transform with hybrid zerotree and bitplane coding
Embedded lossy and lossless image compression based on integ...
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conference on wavelets - applications in signal and image processing IX
作者: Manzano, P Ricci, JM Ruedin, AMC Univ Buenos Aires Fac Ciencias Exactas & Nat Dept Computat Buenos Aires DF Argentina
We present a coder that yields good quality images at very high compression rates. It performs embedded coding and can carry out both lossy and lossless compression, properties which are suitable for progressive trans... 详细信息
来源: 评论
Design-adapted wavelet estimator for two-dimensional tensor product irregular designs
Design-adapted wavelet estimator for two-dimensional tensor ...
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wavelets - applications in signal and image processing X conference
作者: Delouille, W Simoens, J von Sachs, R Rice Univ Dept Elect & Comp Engn Houston TX 77251 USA
We treat nonparametric estimation of a regression function defined on a 'tensor product irregular grid,' that is, a grid constructed as the Cartesian product of two irregular one-dimensional grids. Our wavelet... 详细信息
来源: 评论
Computation of the density of weighted wavelet systems
Computation of the density of weighted wavelet systems
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wavelets - applications in signal and image processing X conference
作者: Kutyniok, G Univ Gesamthsch Paderborn Dept Math D-33095 Paderborn Germany
Density conditions have turned out to be a powerful tool for deriving necessary conditions for weighted wavelet systems to possess an upper or lower frame bound. In this paper we study different definitions of density... 详细信息
来源: 评论
The general construction of 9-7 wavelet filters and its application in image compression  6
The general construction of 9-7 wavelet filters and its appl...
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6th International conference on signal processing
作者: Cheng, LZ Zhang, ZH Xu, H Natl Univ Def Technol Sch Sci Changsha 410073 Hunan Peoples R China
We present here a technique to construct the general 9-7 wavelets whose coefficients contain free variables that include an interval by lifting scheme. Based on the developed 9-7 wavelets, wavelet filters with binary ... 详细信息
来源: 评论
Multiscale shape analysis: Beyond the normality and independence of noise
Multiscale shape analysis: Beyond the normality and independ...
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conference on wavelet applications in signal and image processing Vii
作者: He, Y Krim, H N Carolina State Univ Dept Elect & Comp Engn Ctr Adv Comp & Commun Raleigh NC 27695 USA
In this paper, we propose a new algorithm for extracting a non smooth shape from its noisy observation. The key ideal is to project the noisy shape onto a set of orthogonal subspaces at different resolutions, and cons... 详细信息
来源: 评论