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Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)最新文献

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A new scheme for object-oriented video compression and scene analysis based on motion tuned spatio-temporal wavelet family trajectory identification 基于运动调谐时空小波族轨迹识别的面向对象视频压缩与场景分析新方案
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341107
P. Brault
{"title":"A new scheme for object-oriented video compression and scene analysis based on motion tuned spatio-temporal wavelet family trajectory identification","authors":"P. Brault","doi":"10.1109/ISSPIT.2003.1341107","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341107","url":null,"abstract":"This work presents a new scheme for hybrid video compression. It is also aimed at showing the applicability of the scheme to scene analysis. The originality of this contribution is first to use spatio-temporal wavelet families tuned to motion. In this sense it differs from approaches based on motion unwarping then filtering with traditional wavelets. Here we process the warped signal and the motion parameters are acquired by wavelets tuned to specific parameters like rotation, velocity or acceleration, in addition to the traditional properties of scaling and translation of the wavelet transform. The other originality of this approach takes place in the fast construction of objects trajectories from the parameters acquired by the wavelet transform and from a model chosen for the trajectory estimation. We show in the final step how motion estimation can be deduced from the computed object trajectory.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130689267","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
Unsupervised 2D multiband histogram clustering and region for color image segmentation 无监督二维多波段直方图聚类与区域彩色图像分割
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341111
O. Lézoray
{"title":"Unsupervised 2D multiband histogram clustering and region for color image segmentation","authors":"O. Lézoray","doi":"10.1109/ISSPIT.2003.1341111","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341111","url":null,"abstract":"A segmentation method for color images is presented in this work. A morphological unsupervised 2D multiband histogram clustering provides an initial segmentation of the image. Region information is then used and a novel technique is introduced to simplify the region adjacency graph by merging candidate regions until the stabilization of a \"good\" segmentation criterion. Merged regions are refined by a color watershed. The whole method requires the definition of only one single parameter which acts as a multiscale parameter.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133698152","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
Selective multi-user diversity 选择性多用户分集
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341085
D. Gesbert, Mohamed-Slim Alouini
{"title":"Selective multi-user diversity","authors":"D. Gesbert, Mohamed-Slim Alouini","doi":"10.1109/ISSPIT.2003.1341085","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341085","url":null,"abstract":"This paper considers the problem of multi-user wireless scheduling using the so-called multi-user diversity (MUDiv) concept, which requires the instantaneous channel feedback from all users to the base station. We ask ourselves whether this feedback is justified in view of the increased capacity for post scheduling. We revisit the MUDiv concept and propose a technique that allows the dramatic reduction of the feedback (by up to 90%) needs while preserving the essential of the scheme performance. The technique is analyzed both analytically and through simulations.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133698819","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: 61
Varying length equalizer for WCDMA system WCDMA系统的变长均衡器
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341131
Xusheng Wei, D. Cruickshank, B. Mulgrew
{"title":"Varying length equalizer for WCDMA system","authors":"Xusheng Wei, D. Cruickshank, B. Mulgrew","doi":"10.1109/ISSPIT.2003.1341131","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341131","url":null,"abstract":"In the downlink of synchronous CDMA, the orthogonality of spreading codes will be ruined by the frequency selective multipath channel. Losing of orthogonality causes the multiple access interference (MAI). To suppress the MAI, linear equalizers were proposed which can partially restore the orthogonality of spreading codes before dispreading. In this paper, a new adaptive equalizer using the least mean square (LMS) algorithm was proposed which can adjust its length according to the condition of the propagation channel. The simulation results show that the performance of the new equalizer is significantly better than that of the conventional RAKE receiver.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131423090","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
Using a phonocardiography in a pulse wave velocity measurement 用心音图测量脉搏波速度
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341165
M. Jelinek, J. Dobes, L. Pousek, K. Hána
{"title":"Using a phonocardiography in a pulse wave velocity measurement","authors":"M. Jelinek, J. Dobes, L. Pousek, K. Hána","doi":"10.1109/ISSPIT.2003.1341165","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341165","url":null,"abstract":"A data acquisition is realised using purely non-invasive measuring mode, i.e. phonocardiography, in this project. A blood pulse wave velocity (PWV) in human arterial tree is determined by analysing phonocardiographic (PCG) records. Two signals are needed at minimum for an estimation of the pulse wave velocity. All of these signals have to be measured simultaneously from different points on a human body using electronic phonendoscopes. Pressure and sound manifestations of the pulse wave spreading are recorded in a cardiovascular system by this measuring device. Recorded signals are transferred to the computer in a real time mode, where they are saved for a next data processing (filtering, standardisation, and analysis). The pulse wave velocity is estimated using a cross-correlation analysis of recorded phonocardiographic signals.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116976184","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
Estimation of short term prediction parameters under lossy conditions 有耗条件下短期预测参数的估计
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341074
D. Black, M. Sandler
{"title":"Estimation of short term prediction parameters under lossy conditions","authors":"D. Black, M. Sandler","doi":"10.1109/ISSPIT.2003.1341074","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341074","url":null,"abstract":"The inconsistencies inherent in packet switched network delivery can be seriously detrimental to the quality of a real-time speech transmission. This paper places its emphasis on the importance of the short term prediction (STP) filter parameters as these are perceptually important to intelligible speech. We introduces several novel schemes for the recovery of lost STP parameters represented as line spectral frequencies (LSFs) based on extrapolation and interpolation techniques. The unique inclusion of a number of past and/or future frames further commends this work. Methods which outperforms the traditional frame repetition and linear interpolation in terms of accuracy are presented and evaluated.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117048657","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
Design of MIMO communication systems robust to eigenvector mismatch problem MIMO通信系统对特征向量失配问题的鲁棒性设计
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341063
T. Taniguchi, R. Takemoto, N. X. Tran, Y. Karasawa
{"title":"Design of MIMO communication systems robust to eigenvector mismatch problem","authors":"T. Taniguchi, R. Takemoto, N. X. Tran, Y. Karasawa","doi":"10.1109/ISSPIT.2003.1341063","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341063","url":null,"abstract":"This work presents a design method of multiple input multiple output (MIMO) wireless systems that shows robustness to eigenvector mismatch problem between the transmitter and receiver arrays. This problem often happens when the first and second largest eigenvalues are close together that results in the disconnection or quality degradation of communications. The proposed method is based on the recovery of the correct weight pair between the transceiver and receiver. First, to cope with the uncertainness of eigenvectors coming from the eigenvalue degeneration of the channel correlation matrix, we give a procedure to derive a unique weight common in both arrays. Then through computer simulations, it is shown that this approach achieves high SNR without losing the orthogonality of weights for plural MIMO paths as in the case of the eigenvector exchange when the relation of the eigenvalues is changed in one side of the arrays.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117315700","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
Data-driven temporal processing using independent component analysis for robust speech recognition 使用独立分量分析的数据驱动时态处理用于鲁棒语音识别
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341224
Junhui Zhao, Jingming Kuang, Xiang Xie
{"title":"Data-driven temporal processing using independent component analysis for robust speech recognition","authors":"Junhui Zhao, Jingming Kuang, Xiang Xie","doi":"10.1109/ISSPIT.2003.1341224","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341224","url":null,"abstract":"In deriving the data-driven temporal filters for speech feature, linear discriminant analysis (LDA) and principal component analysis (PCA) have been shown to be successful in improving the feature robustness. In this paper, we proposed a new data-driven temporal processing method using independent component analysis (ICA) for obtaining a more robust speech representation. ICA is a signal processing technique, which can separate linearly mixed signals into statistically independent signals. The presented method can effectively extract the dominant frequency components ranging between 1 and 16 Hz from the modulation spectrum of speech signals. Detailed comparative analysis between the proposed ICA-derived temporal filters and the previous approaches including LDA and PCA is presented. The preliminary experiments show that the performance of the ICA based temporal filtering is much better in comparison with the LDA and PCA based methods in noisy environment.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123553931","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
Non-negative component parts of sound for classification 用于分类的声音的非负分量
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341200
Yong-Choon Cho, Seungjin Choi, S. Bang
{"title":"Non-negative component parts of sound for classification","authors":"Yong-Choon Cho, Seungjin Choi, S. Bang","doi":"10.1109/ISSPIT.2003.1341200","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341200","url":null,"abstract":"Sparse coding or independent component analysis (ICA) which is a holistic representation, was successfully applied to elucidate early auditory processing and to the task of sound classification. In contrast, parts-based representation is an alternative way of understanding object recognition in brain. In this paper we employ the non-negative matrix factorization (NMF) [D.D. Lee et al., 1999] which learns parts-based representation in the task of sound classification. Methods of feature extraction from spectro-temporal sounds using the NMF in the absence or presence of noise are explained. Experimental results show that NMF-based features improve the performance of sound classification over ICA-based features.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"2010 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129702233","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: 31
R-peak detection with alternative Haar wavelet filter 替代Haar小波滤波器的r峰检测
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795) Pub Date : 2003-12-14 DOI: 10.1109/ISSPIT.2003.1341099
A. Alexandridi, I. Panagopoulos, G. Manis, G. Papakonstantinou
{"title":"R-peak detection with alternative Haar wavelet filter","authors":"A. Alexandridi, I. Panagopoulos, G. Manis, G. Papakonstantinou","doi":"10.1109/ISSPIT.2003.1341099","DOIUrl":"https://doi.org/10.1109/ISSPIT.2003.1341099","url":null,"abstract":"This work presents a new filtering method for the Pan-Tompkins algorithm. The Haar wavelet is substituted for the bandpass filter commonly used in the algorithm and is applied to sample the data from two popular databases. We found that the application of the Haar wavelet as a filtering step produces a much clearer signal after the integration phase of the Pan-Tompkins algorithm and that peak detection is comparable to that of the bandpass approach. The benefits of using the Haar wavelet includes simpler computations and its hardware implementation is cheaper than that of the bandpass filter since there is no multiplication necessary.","PeriodicalId":332887,"journal":{"name":"Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129847512","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: 7
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