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2007 15th European Signal Processing Conference最新文献

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A probabilistic shading invariant color distance measure 一种概率阴影不变颜色距离测度
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40594
S. Wesolkowski, P. Fieguth
{"title":"A probabilistic shading invariant color distance measure","authors":"S. Wesolkowski, P. Fieguth","doi":"10.5281/ZENODO.40594","DOIUrl":"https://doi.org/10.5281/ZENODO.40594","url":null,"abstract":"We develop a probabilistic color distance measure based on hypothesis testing in order to achieve shading invariance in image segmentation. We derive this new color distance measure based on the Dichromatic Reflection Model and noise statistics. We show preliminary results of using the new semi-metric in a color image segmentation task to show its effectiveness.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132972819","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
Underwater video analysis for Norway lobster stock quantification using multiple visual attention features 利用多重视觉注意特征对挪威龙虾种群进行量化的水下视频分析
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40564
P. Correia, P. Lau, P. Fonseca, A. Campos
{"title":"Underwater video analysis for Norway lobster stock quantification using multiple visual attention features","authors":"P. Correia, P. Lau, P. Fonseca, A. Campos","doi":"10.5281/ZENODO.40564","DOIUrl":"https://doi.org/10.5281/ZENODO.40564","url":null,"abstract":"Underwater video is being increasingly used to assess the impact of human activities in marine habitats, as a complementary tool for the assessment of commercial stocks. But, analysing video images manually to study and evaluate marine habitats is a lengthy and tedious task. This paper proposes an automatic method to detect the Norway lobster (Nephrops Norvegicus) an important east-Atlantic and Mediterranean wide-distributed commercial crustacean species, in order to reduce the time and effort it takes marine scientists to manually quantify them. Here, the detection procedure follows a human visual attention model. Three visual attention features are considered: intensity map (IM), edge map (EM), and motion map (MM). The work is composed of two main parts: first the three feature maps are extracted; then, all candidate regions are processed and categorized in view of lobsters detection. Experimental results show that the proposed methodology is able to reliably detect candidate regions after combining the partial results.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124529886","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
Performance of a new Chaos-based communication scheme: The reduced-delay-masked-DCSK 一种新的基于混沌的通信方案的性能:减少延迟掩码dcsk
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40315
Rhouma Rhouma, S. Belghith
{"title":"Performance of a new Chaos-based communication scheme: The reduced-delay-masked-DCSK","authors":"Rhouma Rhouma, S. Belghith","doi":"10.5281/ZENODO.40315","DOIUrl":"https://doi.org/10.5281/ZENODO.40315","url":null,"abstract":"Using chaotic signals in spread-spectrum communications has a few clear advantages over traditional approaches. Chaotic signals are non-periodic, wideband, and more difficult to predict, to reconstruct, and to characterize than periodic carriers. These properties of chaotic signals make it more difficult to intercept and decode the information modulated upon them. In this paper, we introduce modifications on DCSK to enhance the privacy by eliminating the similarity in the output samples by a chaotic mask, and faster by reducing the delay time. We analyze then the performance of the proposed modulation for different parameters and by comparison with other variants of DCSK.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124571328","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
Towards optimised context selection in scalable wavelet based video coding 基于可扩展小波的视频编码优化上下文选择
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40491
Toni Zgaljic, M. Mrak, E. Izquierdo
{"title":"Towards optimised context selection in scalable wavelet based video coding","authors":"Toni Zgaljic, M. Mrak, E. Izquierdo","doi":"10.5281/ZENODO.40491","DOIUrl":"https://doi.org/10.5281/ZENODO.40491","url":null,"abstract":"The effectiveness of arithmetic coding in image and video compression depends on probability estimation of symbols to be encoded. Considering context in which these symbols occur can lead to improved compression. In wavelet-based coding same contexts are usually used for all wavelet subbands of same type across different scales of wavelet transform. Efficiency of different strategies for context selection has not yet been fully analysed for application in scalable wavelet-based video coding. In this paper an algorithm for context modelling based on tree structure is adapted for optimisation of contexts for symbols generated during Embedded ZeroBlock Coding (EZBC) of wavelet coefficients. With the proposed technique optimised contexts have been adaptively obtained for different wavelet subbands and EZBC quadtree levels. Comparison with predefined context models, which are used in common approach, shows that context models based on tree structure together with advanced modelling strategy significantly improve overall compression.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128832411","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
Automatic approach for analyzing the endosome movement in fluorescence video microscopy 荧光视频显微镜中核内体运动分析的自动方法
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40432
C. Rus, Mikko Vanninen, U. Ruotsalainen
{"title":"Automatic approach for analyzing the endosome movement in fluorescence video microscopy","authors":"C. Rus, Mikko Vanninen, U. Ruotsalainen","doi":"10.5281/ZENODO.40432","DOIUrl":"https://doi.org/10.5281/ZENODO.40432","url":null,"abstract":"Endosomes are structures located in a biological cell and their movement can be interesting for studying the effect of pharmaceutical substances on cell processes. The movement of endosomes can be analyzed by using fluorescence microscopy and by producing videos of few seconds length. Movement analysis done by a human specialist is usually unappealing because it is both time consuming and difficult, also the results depend always on the person doing the analysis. By automating the movement analysis we can ease and speed up the process, and the results would also be easily replicable. The paper presents a new tracking approach for endosome movement based on the double exponential smoothing. When compared to Kalman filter, a commonly used movement predictor, the proposed method proved to be simpler to implement, with lower running time and with good results. Also, the paper shows ways to express the movement of the tracked endosomes.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117015557","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
Applying Non-negative Matrix Factorization for global signal elimination from electromagnetic signals 应用非负矩阵分解法对电磁信号进行全局信号消除
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40704
M. Mouri, A. Funase, A. Cichocki, I. Takumi, H. Yasukawa, M. Hata
{"title":"Applying Non-negative Matrix Factorization for global signal elimination from electromagnetic signals","authors":"M. Mouri, A. Funase, A. Cichocki, I. Takumi, H. Yasukawa, M. Hata","doi":"10.5281/ZENODO.40704","DOIUrl":"https://doi.org/10.5281/ZENODO.40704","url":null,"abstract":"Anomalous environmental electromagnetic (EM) radiation waves have been reported as the portents of earthquakes. Our goal is to predict earthquakes using EM radiation waves. We have been measuring the Extremely Low Frequency (ELF) range all over Japan. However, the recorded data contain signals unrelated to earthquakes. These signals, as noise, confound earthquake prediction efforts. It is necessary to eliminate noises from observed signals in a preprocessing step. In this paper, we propose a method for global signal elimination using Non-negative Matrix Factorization (NMF) and evaluate the effectiveness of this method.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117295544","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: 4
A fast algorithm for blind separation of non-Gaussian and time-correlated signals 一种快速的非高斯和时间相关信号盲分离算法
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40557
G. Gómez-Herrero, Zbyněk Koldovský, P. Tichavský, K. Egiazarian
{"title":"A fast algorithm for blind separation of non-Gaussian and time-correlated signals","authors":"G. Gómez-Herrero, Zbyněk Koldovský, P. Tichavský, K. Egiazarian","doi":"10.5281/ZENODO.40557","DOIUrl":"https://doi.org/10.5281/ZENODO.40557","url":null,"abstract":"In this article we propose a computationally efficient method (termed FCOMBI) to combine the strengths of non-Gaussianity-based Blind Source Separation (BSS) and cross-correlations-based BSS. This is done by fusing the separation abilities of two well-known BSS algorithms: EFICA and WASOBI. Simulations show that our approach is at least as accurate and often more accurate that other state-of-the-art approaches which also aim to separate simultaneously non-Gaussian and time-correlated components. However, in terms of computational efficiency and stability, FCOMBI is the clear winner which makes it specially suitable for the analysis of very high-dimensional datasets like high-density Electroencephalographic(EEG) or Magnetoencephalographic (MEG) recordings.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115468172","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
Joint diagonalization of complex spatial-wavelet matrices for blind sources separation of non stationary sources 复合空间小波矩阵联合对角化用于非平稳源的盲分离
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40331
E. Fadaili, V. Vigneron
{"title":"Joint diagonalization of complex spatial-wavelet matrices for blind sources separation of non stationary sources","authors":"E. Fadaili, V. Vigneron","doi":"10.5281/ZENODO.40331","DOIUrl":"https://doi.org/10.5281/ZENODO.40331","url":null,"abstract":"This communication concerns the problem of blind sources separation (BSS) of non stationary sources in the instantaneous mixture case. We consider an approach based on joint-diagonalization of some hermitian matrices constructed by a family of spatial complex cross-wavelet transform. We show that mixing matrix can be estimated by using some algebraic properties of considered matrices. Computer simulations are provided to demonstrate the effectiveness of the proposed method, which is compared with other approach based on the joint-diagonalization.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"32 19-20","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114101088","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
Hybrid music recommendation based on different dimensions of audio content and an entropy measure 基于音频内容不同维度和熵测度的混合音乐推荐
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40394
Z. Cataltepe, B. Altinel
{"title":"Hybrid music recommendation based on different dimensions of audio content and an entropy measure","authors":"Z. Cataltepe, B. Altinel","doi":"10.5281/ZENODO.40394","DOIUrl":"https://doi.org/10.5281/ZENODO.40394","url":null,"abstract":"Our music recommendation system recommends a song to a user, at a certain time, based on the listening history of the user. Based on different sets of audio features (MFCC, MPITCH, BEAT, STFT) of all available songs, different clusterings of songs are obtained. Users are given recommendations from one of these clusterings. The right clustering for a user is determined based on the Shannon entropy of the distribution of songs the user listened in each clustering. Using this content based recommendation scheme, as opposed to a static set of features resulted in upto 60 percent increase in recommendation success. In addition to the audio features (content) of songs user listened, the singers for the songs and also the most popular songs at the time of recommendation are also available. We introduce two recommendation algorithms that decide on the weight of content cluster, singer cluster and popularity adaptively for each user, based on the user history. Our experiments on user session data consisting of 2000 to 500 sessions and of length 5 to 15 indicate that these adaptive recommendation schemes give better recommendation results than using only content based recommendation.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127788856","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
MIMO-OFDM for a cellular deployment — Concepts, real-time implementation and measurements towards 3GPP-LTE 用于蜂窝部署的MIMO-OFDM -面向3GPP-LTE的概念、实时实现和测量
2007 15th European Signal Processing Conference Pub Date : 2007-09-03 DOI: 10.5281/ZENODO.40582
T. Haustein, J. Eichinger, W. Zirwas, E. Schulz, A. Forck, H. Gäbler, V. Jungnickel, S. Wahls, C. Juchems, F. Luhn, R. Zavrtak
{"title":"MIMO-OFDM for a cellular deployment — Concepts, real-time implementation and measurements towards 3GPP-LTE","authors":"T. Haustein, J. Eichinger, W. Zirwas, E. Schulz, A. Forck, H. Gäbler, V. Jungnickel, S. Wahls, C. Juchems, F. Luhn, R. Zavrtak","doi":"10.5281/ZENODO.40582","DOIUrl":"https://doi.org/10.5281/ZENODO.40582","url":null,"abstract":"In this paper we report on the system design and a realtime implementation of a MIMO-OFDM radio transmission system close to physical layer parameters as discussed in standardization for 3GPP-Long-Term-Evolution. We describe the implementation concept and first results on over-the-air transmission with a single user set-up occupying 20 MHz bandwidth and achieving more than 150 Mbit/s gross data rate in the 2×2 MIMO down-link and more than 50 Mbit/s in the single transmit antenna up-link. The demonstration system was only recently shown to the public at various trade shows like ITU in Hongkong and 3GSM in Barcelona.","PeriodicalId":176384,"journal":{"name":"2007 15th European Signal Processing Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126042173","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: 11
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