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1996 8th European Signal Processing Conference (EUSIPCO 1996)最新文献

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Nonlinear discriminant analysis with neural networks for speech recognition 基于神经网络的语音识别非线性判别分析
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36303
V. Fontaine, C. Ris, H. Leich
{"title":"Nonlinear discriminant analysis with neural networks for speech recognition","authors":"V. Fontaine, C. Ris, H. Leich","doi":"10.5281/ZENODO.36303","DOIUrl":"https://doi.org/10.5281/ZENODO.36303","url":null,"abstract":"Linear Discriminant Analysis (LDA) has been applied successfully to speech recognition tasks, improving accuracy and robustness against some types of noise. However, it is well known that LDA suffers from some weaknesses if the distributions are not unimodal or when the mean of the distributions are shared. In this paper, we propose to take advantage of the nonlinear discriminant properties of the Artificial Neural Networks (ANN) in the task of reducing the dimensionality of the input space, leading to a nonlinear discriminant analysis.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124855259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A new two-dimensional block least mean squares adaptive algorithm 一种新的二维块最小均方自适应算法
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36070
S. Attallah, M. Najim
{"title":"A new two-dimensional block least mean squares adaptive algorithm","authors":"S. Attallah, M. Najim","doi":"10.5281/ZENODO.36070","DOIUrl":"https://doi.org/10.5281/ZENODO.36070","url":null,"abstract":"In this paper, a new 2-D block LMS algorithm is presented. This algorithm, which is an exact mathematical formulation of classical 2-D LMS algorithms, presents the advantage of preserving a good convergence as the block size increases. The reduction in the computational complexity is achieved by exploiting the redundancy between successive computations, rather than using disjoint or partially overlapping windows. The latter are known to degrade the convergence when the block size is large.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115086280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Text-independent off-line writer recognition using neural networks 基于神经网络的文本独立离线写作者识别
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36306
D. A. Valkaniotis, J. Sirigos, N. Fakotakis, G. Kokkinakis
{"title":"Text-independent off-line writer recognition using neural networks","authors":"D. A. Valkaniotis, J. Sirigos, N. Fakotakis, G. Kokkinakis","doi":"10.5281/ZENODO.36306","DOIUrl":"https://doi.org/10.5281/ZENODO.36306","url":null,"abstract":"In this paper we present a text-independent offline writer recognition system based on multilayer perceptrons (MLPs). The system can be used for both identification and verification purposes. It was tested on a population of 20 writers with non-correlated training and test specimens. The mean error for identification was 3.5% while error rates as low as 0.5% were achieved on specimens with more than 25 characters. For verification the mean error was 1.2% (2.22% false rejection, 0.18% false acceptance) considering a minimum of 15 characters per test specimen. These error rates are comparable to those achieved by classical methods while the response of the system is substantially faster.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122729498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
FIR oversampled filter banks and frames in ℓ2(Z) FIR过采样滤波器组和帧在l2 (Z)
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36403
Z. Cvetković, M. Vetterli
{"title":"FIR oversampled filter banks and frames in ℓ2(Z)","authors":"Z. Cvetković, M. Vetterli","doi":"10.5281/ZENODO.36403","DOIUrl":"https://doi.org/10.5281/ZENODO.36403","url":null,"abstract":"Perfect reconstruction FIR filter banks implement a particular class of signal expansions in ℓ2(Z). These expansions are studied in this paper. Necessary and sufficient conditions on an FIR filter bank to implement a frame or a tight frame decomposition are given, as well as the necessary and sufficient condition for a feasibility of perfect reconstruction using FIR filters. Complete parameterizations of FIR filter banks satisfying these conditions are given. Further, we study the condition under which the minimal dual frame to the frame associated to an FIR filter bank is also FIR, and give a parameterization of a class of filter banks having this property. We then concentrate on the least constrained class, namely nonsubsampled filter banks, for which these frame conditions have particular forms.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114603065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The best order of long autoregressive models for moving average estimation 移动平均估计的长自回归模型的最佳阶数
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.35981
P. Broersen
{"title":"The best order of long autoregressive models for moving average estimation","authors":"P. Broersen","doi":"10.5281/ZENODO.35981","DOIUrl":"https://doi.org/10.5281/ZENODO.35981","url":null,"abstract":"Durbin's method for Moving Average (MA) estimation uses the estimated parameters of a long AutoRegressive (AR) model to compute the desired MA parameters. A theoretical order for that long AR model is ∞, but very high AR orders lead to inaccurate MA models in the finite sample practice. A new theoretical argument is presented to derive an expression for the best finite long AR order for a known MA process and a given sample size. Intermediate AR models of precisely that order produce the most accurate MA models. This new order differs from the best AR order to be used for prediction. An algorithm is presented that enables use of the theory for the best long AR order in known processes to data of an unknown process.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122151280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Texture analysis: Comparison of autocorrelation-based with cumulant-based approaches 纹理分析:基于自相关和基于累积量方法的比较
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36047
Vittorio Murino, C. Ottonello, S. Pagnan, A. Trucco
{"title":"Texture analysis: Comparison of autocorrelation-based with cumulant-based approaches","authors":"Vittorio Murino, C. Ottonello, S. Pagnan, A. Trucco","doi":"10.5281/ZENODO.36047","DOIUrl":"https://doi.org/10.5281/ZENODO.36047","url":null,"abstract":"In this paper the use of 3rd-order cumulants, i.e. triple correlations, is proposed for texture analysis. Properties of such features are derived, with particular attention to insensitivity to symmetrically distributed noises and statistical estimate stabilility. Experimental evaluation of 3rd-order cumulants as descriptive features for textures is carried out in comparison with autocorrelation-based approaches.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122177426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A new design method of linear-phase paraunitary filter banks with an odd number of channels 提出了一种新的奇数通道线性相位准酉滤波器组设计方法
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36095
S. Muramatsu, H. Kiya
{"title":"A new design method of linear-phase paraunitary filter banks with an odd number of channels","authors":"S. Muramatsu, H. Kiya","doi":"10.5281/ZENODO.36095","DOIUrl":"https://doi.org/10.5281/ZENODO.36095","url":null,"abstract":"In this work, a new design method of M-channel linear-phase paraunitary filter banks (LPPUFB) is proposed for odd M with a cascade structure. The conventional cascade structure has a problem that one of the filters is restricted to be of length M. In the proposed method, all filters are permitted to be of the same length as each other and longer than M. The significance of our proposed method is verified by showing some design examples.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122187847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
The optimum approximation in generalized time-frequency domains and application to numerical simulation of partial differential equations 广义时频域最优逼近及其在偏微分方程数值模拟中的应用
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36082
T. Kida
{"title":"The optimum approximation in generalized time-frequency domains and application to numerical simulation of partial differential equations","authors":"T. Kida","doi":"10.5281/ZENODO.36082","DOIUrl":"https://doi.org/10.5281/ZENODO.36082","url":null,"abstract":"Extended optimum interpolatory approximation is presented for a certain set of signals having n variables. As the generalized spectrum of a signal, we consider a v-dimensional vector. These variables can be contained in one of the time domain, the frequency domain or the time-frequency domain. Sometimes, these can be contained in the space-variable domain or in the space-frequency variable domain. To construct the theory across these domains, we assume that the number of variables for a signal and its generalized spectrum are different, in general. Under natural assumption that those generalized spectrums have weighted norms smaller than a given positive number, we prove that the presented approximation has the minimum measure of approximation error among all the linear and the nonlinear approximations using the same generalized sample values. Application to numerical simulation of partial differential equations is considered. In this application, a property for discrete orthogonality associated with the presented approximation plays an essential part.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128746508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Algebraic lattice realization of passive transmission line systems 无源输电系统的代数点阵实现
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36111
Y. Monden, M. Nagamatsu, S. Okamoto
{"title":"Algebraic lattice realization of passive transmission line systems","authors":"Y. Monden, M. Nagamatsu, S. Okamoto","doi":"10.5281/ZENODO.36111","DOIUrl":"https://doi.org/10.5281/ZENODO.36111","url":null,"abstract":"In this paper, firstly, the Schur-Cohn test known as an algebraic stability test of discrete-time linear systems is presented as a \"lossless bounded realness test by lossless bounded real lattice realization\" of a given real rational transfer function on the unit disk. Then, by characterizing a discrete model of piecewise constant passive transmission line in terms of a set of physical system parmeters, it is extended to an algebraic algorithm for \"bounded realness test by bounded real realization\" of a certain class of rational transfer functions, which are general enough to cover almost actual passive transmission lines.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129484174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatio-temporal wavelet transforms for image sequence analysis 用于图像序列分析的时空小波变换
1996 8th European Signal Processing Conference (EUSIPCO 1996) Pub Date : 1996-09-01 DOI: 10.5281/ZENODO.36066
J. Leduc, C. Labit
{"title":"Spatio-temporal wavelet transforms for image sequence analysis","authors":"J. Leduc, C. Labit","doi":"10.5281/ZENODO.36066","DOIUrl":"https://doi.org/10.5281/ZENODO.36066","url":null,"abstract":"This paper intends to present an integrated approach of constructing new spatio-temporal wavelets for discrete signal analysis. The main illustrative field of applications considered here stands as the analysis of digital image sequences. Nevertheless, this can be readily extended to any kind of spatio-temporal signals. Continuous wavelet transforms, continuous series, discretized series and discrete transforms are considered here in an unified way. The analysis to be developed relies only on dynamic parameters like uniform translation and rotation, on kinematic parameters like velocity and speed and on structural parameters as scale and orientation. This digital processing intends to cover the detection and the focalization on motion-based regions of interest in order to perform tracking, classification, segmentation, multiscale trajectory construction and eventually a selective reconstruction of the useful content.","PeriodicalId":282153,"journal":{"name":"1996 8th European Signal Processing Conference (EUSIPCO 1996)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130548534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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