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2004 12th European Signal Processing Conference最新文献

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Relative energy and intelligibility of transient speech components 瞬态语音成分的相对能量和可理解性
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38667
Sungyub Yoo, J. Boston, J. Durrant, K. Kovacyk, S. Karn, S. Shaiman, A. El-Jaroudi, Ching-Chung Li
{"title":"Relative energy and intelligibility of transient speech components","authors":"Sungyub Yoo, J. Boston, J. Durrant, K. Kovacyk, S. Karn, S. Shaiman, A. El-Jaroudi, Ching-Chung Li","doi":"10.5281/ZENODO.38667","DOIUrl":"https://doi.org/10.5281/ZENODO.38667","url":null,"abstract":"It is generally recognized that consonants are more critical than vowels to speech intelligibility, but we suggest that important information is contained in transient speech components, rather than the quasi-steady-state components of both consonants and vowels. Fixed-frequency filters cannot uniquely separate transients from the more steady-state vowel formants and consonant hubs, even though the former are predominately low frequency and the latter, high frequency. To study the relative speech intelligibility of the transient versus steady-state components, we employed an algorithm based on time-frequency analysis to extract quasi-steady-state energy from the speech signal, leaving a residual signal of predominantly transient components. Psychometric functions were measured for speech recognition of processed and unprocessed monosyllabic words. The transient components were found to account for approximately 2% of the energy of the original speech, yet were nearly equally intelligible. As hypothesized, the quasi-steady-state components contained much greater energy while providing significantly less intelligibility.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115629537","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: 14
3-D texture model based on the wold decomposition 基于世界分解的三维纹理模型
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38581
Y. Stitou, F. Turcu, M. Najim, L. Radouane
{"title":"3-D texture model based on the wold decomposition","authors":"Y. Stitou, F. Turcu, M. Najim, L. Radouane","doi":"10.5281/ZENODO.38581","DOIUrl":"https://doi.org/10.5281/ZENODO.38581","url":null,"abstract":"This paper deals with the parametric modelling of three-dimensional (3-D) stochastic processes. Based on the 3-D Wold-like decomposition theory, any 3-D discrete homogeneous process can be represented as a sum of three mutually orthogonal components: a completely non deterministic, a “remote past” type deterministic and an evanescent component. The evanescent component can be further decomposed into two orthogonally components called evanescent of type 1 and evanescent of type 2. The aim of this paper is to propose a new parametric models able to describe both the spectral support and spatial structure of each component.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123310651","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: 6
Radio frequency interference mitigation with real-time FPGA digital signal processing 实时FPGA数字信号处理的射频干扰缓解
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38172
W. Baan, P. Fridman, R. Millenaar
{"title":"Radio frequency interference mitigation with real-time FPGA digital signal processing","authors":"W. Baan, P. Fridman, R. Millenaar","doi":"10.5281/ZENODO.38172","DOIUrl":"https://doi.org/10.5281/ZENODO.38172","url":null,"abstract":"The sensitivity of radio astronomy telescopes is often limited by man-made radio frequency interference due to a variety of terrestrial activities. An RFI mitigation subsystem (RFIMS) based on real-time digital signal-processing is proposed for the Westerbork Synthesis Radio Telescope based on a powerful field programmable gate array (FPGA) processor. In this system the radio astronomy signals polluted by RFI are “cleaned” by the RFIMS before the routine backend correlation processing happens. The high temporal and frequency resolution of the RFIMS allows the detection and excision of RFI.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123318943","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 sensitivity matrix for a spectro-temporal auditory model 光谱-时间听觉模型的灵敏度矩阵
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38476
J. Plasberg, D. Zhao, W. Kleijn
{"title":"The sensitivity matrix for a spectro-temporal auditory model","authors":"J. Plasberg, D. Zhao, W. Kleijn","doi":"10.5281/ZENODO.38476","DOIUrl":"https://doi.org/10.5281/ZENODO.38476","url":null,"abstract":"Perceptually optimal processing of speech and audio signals demands distortion measures that are based on sophisticated auditory models. High-rate theory can simplify these models by means of a sensitivity matrix. We present a method to derive the sensitivity matrix for distortion measures based on spectro-temporal auditory models under the assumption of small errors. This method is applied to an example auditory model and the region of validity of the approximation as well as a way to analyze the characteristics of the model with subspace methods are discussed.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117295499","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: 15
Fixed-lag sequential Monte Carlo 固定滞后顺序蒙特卡罗
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38484
A. Doucet, S. Sénécal
{"title":"Fixed-lag sequential Monte Carlo","authors":"A. Doucet, S. Sénécal","doi":"10.5281/ZENODO.38484","DOIUrl":"https://doi.org/10.5281/ZENODO.38484","url":null,"abstract":"Sequential Monte Carlo methods, aka particle methods, are an efficient class of simulation techniques to approximate sequences of complex probability distributions. These probability distributions are approximated by a large number of random samples called particles which are propagated over time using a combination of importance sampling and resampling steps. The efficiency of these algorithms is highly dependent on the importance distribution used. Even if the optimal importance distribution is chosen, the algorithm can be inefficient. Indeed, current standard sampling strategies extend the paths of particles over one time step and weight them consistently but do not modify the locations of the past of the paths. Consequently, if the discrepancy between two successive probability distributions is high, then this strategy can be highly inefficient. In this paper, we propose an extended importance sampling technique that allows us to modify the past of the paths and weight them consistently without having to perform any local Monte Carlo integration. This approach reduces the depletion of samples. An application to an optimal filtering problem for a toy nonlinear state space model illustrates this methodology.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"466 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120880716","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
Impulse noise correction in an image transmission system by means of an oversampled filter bank code 用过采样滤波器组代码对图像传输系统中的脉冲噪声进行校正
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38572
S. Marinkovic, C. Guillemot
{"title":"Impulse noise correction in an image transmission system by means of an oversampled filter bank code","authors":"S. Marinkovic, C. Guillemot","doi":"10.5281/ZENODO.38572","DOIUrl":"https://doi.org/10.5281/ZENODO.38572","url":null,"abstract":"Quantized frame expansions based on block transforms and oversampled filter banks (OFB) have been considered recently as joint source-channel codes for erasure and error resilient signal transmission over noisy channels. This paper examines the problem of syndrome decoding and especially of error localization and correction in quantized OFB signal expansions. The error localization problem is treated as an M-ary hypothesis testing problem. The tests are derived from the joint probability density function of the syndromes under various hypothesis of impulse noise positions and in a number of consecutive windows of the received samples (to account for the encoding memory of the convolutional code). The error amplitudes are then estimated from the syndrome equations by solving them in the least square sense. The message signal is reconstructed from the corrected received signal by a pseudoinverse receiver. The algorithm is applied to joint source and channel coding (JSCC) of images based on oversampled wavelet filter banks.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131552711","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: 2
Privacy protecting biometric authentication systems: An overview 隐私保护生物识别认证系统:概述
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38699
P. Tuyls, E. Verbitskiy, J. Goseling, D. Denteneer
{"title":"Privacy protecting biometric authentication systems: An overview","authors":"P. Tuyls, E. Verbitskiy, J. Goseling, D. Denteneer","doi":"10.5281/ZENODO.38699","DOIUrl":"https://doi.org/10.5281/ZENODO.38699","url":null,"abstract":"In this paper we present a short overview of results that have been achieved on template protecting biometric authentication systems.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131605989","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: 16
Wave Field Synthesis: From research to applications 波场合成:从研究到应用
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38716
K. Brandenburg, Sandra Brix, T. Sporer
{"title":"Wave Field Synthesis: From research to applications","authors":"K. Brandenburg, Sandra Brix, T. Sporer","doi":"10.5281/ZENODO.38716","DOIUrl":"https://doi.org/10.5281/ZENODO.38716","url":null,"abstract":"Wave Field Synthesis can dramatically increase the quality of sound reproduction. To create new virtual rooms with realistic ambience within any listening space, new ideas for room simulation and virtual acoustics are needed. The work originally started at Delft Technical University (TU Delft) is now continued at a number of research locations. The paper will introduce the basic techniques, show the requirements for a number of real world applications and give an overview of current research topics. The applications scenarios include cinemas, concert halls and all kinds of music performances (indoor and outdoor).","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130811492","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: 12
Adaptive algorithm for fast motion estimation in H.264/MPEG-4 AVC H.264/MPEG-4 AVC中快速运动估计的自适应算法
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38493
S. Saponara, M. Melani, L. Fanucci, P. Terreni
{"title":"Adaptive algorithm for fast motion estimation in H.264/MPEG-4 AVC","authors":"S. Saponara, M. Melani, L. Fanucci, P. Terreni","doi":"10.5281/ZENODO.38493","DOIUrl":"https://doi.org/10.5281/ZENODO.38493","url":null,"abstract":"With reference to the H.264/MPEG-4 AVC video coding standard featuring interframe prediction with multiple reference frames and block sizes, this paper presents a motion estimator (ME) which exploits input signal variations to dynamically reconfigure the search size and the number of reference frames of an exhaustive block-matching search. This ME achieves, for bit-rates ranging from few Kbps to several Mbps, the same performance of the Full-Search with a considerable complexity reduction.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"49 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128374510","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: 9
Design of constrained IIR and interpolated IIR filters using a new semi-definite programming based model reduction technique 采用一种新的基于半确定规划的模型约简技术设计约束IIR和内插IIR滤波器
2004 12th European Signal Processing Conference Pub Date : 2004-09-06 DOI: 10.5281/ZENODO.38269
S. Chan, K. Tsui, K. Tse
{"title":"Design of constrained IIR and interpolated IIR filters using a new semi-definite programming based model reduction technique","authors":"S. Chan, K. Tsui, K. Tse","doi":"10.5281/ZENODO.38269","DOIUrl":"https://doi.org/10.5281/ZENODO.38269","url":null,"abstract":"This paper proposes a new method for designing IIR filter with peak error constraints and prescribed flatness constraints, such as zeros at stopband. It is based on the model reduction of a FIR function that satisfies the specification by extending a method previously proposed by Brandenstein et al. The proposed model reduction method retains the denominator of the conventional techniques and formulates the optimal design of the numerator as a semi-definite programming problem. Therefore, linear and convex quadratic inequalities such as peak error constraints and prescribed number of zeros at the stopband for the IIR filters can be imposed and solved optimally. Moreover, a method is also proposed to facilitate the efficient implementation of the model reduced IIR filters in multirate applications. Design examples show that the proposed method gives better performance, and more flexibility in incorporating a wide variety of constraints than conventional methods.","PeriodicalId":347658,"journal":{"name":"2004 12th European Signal Processing Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130669924","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: 9
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