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Proceedings ELMAR 2006最新文献

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Efficient Visual Information Retrieval using Orthogonal MSTs 基于正交MSTs的高效视觉信息检索
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329524
C. Theoharatos, N. Laskaris, G. Economou, S. Fotopoulos
{"title":"Efficient Visual Information Retrieval using Orthogonal MSTs","authors":"C. Theoharatos, N. Laskaris, G. Economou, S. Fotopoulos","doi":"10.1109/ELMAR.2006.329524","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329524","url":null,"abstract":"The notion of interpoint-distance-based graphs has in the past, guided the extension of distributional order-measures to multivariate observations. The concept of minimal spanning tree (MST) was introduced as the key pattern for generalizing the univariate two-sample problem to multivariate observations. Here, the multivariate Wald-Wolfowitz test is further quantified using the enhanced representations of orthogonal MSTs. Their advantages are investigated by comparing the similarity between color distributions in the feature space, using a standard feature extraction technique borrowed computer vision. To demonstrate the performance of the proposed scheme, the application on a diverse collection of images has been systematically studied in a query-by-example visual information retrieval task. Experimental results show that a powerful measure of similarity can emerge from the statistical comparison of their efficiently drawn pattern representations","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123281667","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
Double-Binary Turbo Code for Transmission of Scalable Video Bitstream 用于可扩展视频比特流传输的双二进制Turbo码
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329571
N. Ramzan, E. Izquierdo
{"title":"Double-Binary Turbo Code for Transmission of Scalable Video Bitstream","authors":"N. Ramzan, E. Izquierdo","doi":"10.1109/ELMAR.2006.329571","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329571","url":null,"abstract":"A novel low bit rate video transmission scheme is proposed for the communication of scalable video bitstream over wireless channel. The schema consists of motion compensated t+2D wavelet decomposition scalable coder and double binary turbo code. Double binary codes were used for protection since they perform better than classical turbo coders in terms of better convergence for iterative decoding, a large minimum distance and computational cost. An efficient method to estimate the minimum distance of double binary turbo codes is also proposed. The best packet length are evaluated by measuring the minimum distance of turbo code to adopt the scalable bitstream with unequal error protection. Simulation results show that the unequal error protection is quite efficient, even in very adverse conditions, and it clearly outperforms simple FEC techniques","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114848599","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
Laboratory Model of a Monopulse Radar Tracking System 单脉冲雷达跟踪系统的实验室模型
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329549
D. Bonefačić, J. Jancula
{"title":"Laboratory Model of a Monopulse Radar Tracking System","authors":"D. Bonefačić, J. Jancula","doi":"10.1109/ELMAR.2006.329549","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329549","url":null,"abstract":"The development, construction and testing of a student laboratory model of radar system that can be used for monopulse tracking is described The laboratory model will be used for student laboratory exercises as a part of a basic course on radar systems. The system is based on a Sigma-Delta hybrid for processing signals obtained from two horn antennas. The composition of the model is described. Student exercises and measurements on the model are proposed","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132019366","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: 8
Real-time DVB-based MPEG-21 Digital Item Adaptation for live Universal Multimedia Access 面向实时通用多媒体访问的基于dvb的MPEG-21数字项目适配
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329570
M. Prangl, C. Timmerer, H. Hellwagner
{"title":"Real-time DVB-based MPEG-21 Digital Item Adaptation for live Universal Multimedia Access","authors":"M. Prangl, C. Timmerer, H. Hellwagner","doi":"10.1109/ELMAR.2006.329570","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329570","url":null,"abstract":"In order to enable transparent and augmented use of multimedia content across a wide range of networks and devices, content adaptation is an important issue within multimedia frameworks. In this paper, we present a prototype application that receives digital video broadcast (DVB) TV streams on a PC, transcodes the streams on the fly according to the individual user requirements and packs the adapted content together with available metadata into a standard compliant MPEG-21 digital item (DI). In this form, the framework enables the live universal multimedia access (UMA) scenario where the DVB content can be transparently accessed by clients such as PCs and PDAs, anytime and anywhere","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129969410","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 Spatial Filter for Dark Regions Detection 一种用于暗区检测的空间滤波器
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329508
B. Potočnik
{"title":"A Spatial Filter for Dark Regions Detection","authors":"B. Potočnik","doi":"10.1109/ELMAR.2006.329508","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329508","url":null,"abstract":"This paper presents a new spatial filter for detection of dark objects in images with uneven illumination or where object grey-levels vary with respect to local surroundings. Theoretical filter foundations, properties and guidelines for its application are described in detail. This parametric, symmetric, and rotation invariant filter adapts by varying its radius, and, consequently, enables scale-space image analyzing. Filter executes very fast also by big radii, because majority of filter mask elements are zero. Preliminary results are very promising. Proposed filter outperforms related methods like thresholding and local standard deviation in specific images, and, therefore, it is efficient supplement for these methods. With two integrated post-processing methods, this filter successfully deals also with image noise. Consequently, introduced filter can be legitimate reckoned among basic low-level digital image processing tools","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132107413","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
Short Noisy Signal Analysis on the Basis of Sign DM 基于信号DM的短噪声信号分析
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329560
W. Pogribny, I. Rozhankivsky, T. Leszczynski
{"title":"Short Noisy Signal Analysis on the Basis of Sign DM","authors":"W. Pogribny, I. Rozhankivsky, T. Leszczynski","doi":"10.1109/ELMAR.2006.329560","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329560","url":null,"abstract":"In this paper for increasing an efficiency of the real time correlation-spectral analysis of short noisy signals the use of signal representation in sign delta modulation (SignDM) format has been proposed. The SignDM codes are specified by comparing the values of differences between signal samples in PCM format with a differential zone which is defined a'priori. These two bit codes good reflect the signal changes and are suitable for that analysis as well. This paper presents fast and exact algorithms of the short noisy signal analysis on the basis of the SignDM correlation analysis (CA) in connection with the spectral analysis and appropriate mathematical operations, as well as results of resolution study of that analysis by signal various initial phases","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"47 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133802987","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
Design of an HNM System for Prosodic Modification of Slovak Speech 斯洛伐克语韵律修饰HNM系统的设计
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329536
M. Nagy, G. Rozinaj, J. Cepko
{"title":"Design of an HNM System for Prosodic Modification of Slovak Speech","authors":"M. Nagy, G. Rozinaj, J. Cepko","doi":"10.1109/ELMAR.2006.329536","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329536","url":null,"abstract":"In this article, a design of an HNM (harmonic plus noise) model used for prosodic modification of Slovak speech is described. HNM model represents speech signals as a sum of a harmonic and a noise part. The decomposition of speech signal into these two parts enables more natural sounding modifications of the signal. The parametric representation of speech provides a straightforward way of changing prosodic features of the speech. Our algorithm is based on the modified HNM model. Moreover, the system detects the exact phase of the sinusoids to ensure better quality of the speech signal","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114359689","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
Connectivity Packet Platform in the GSM/WCDMA Network GSM/WCDMA网络中的连接分组平台
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329541
D. Duka
{"title":"Connectivity Packet Platform in the GSM/WCDMA Network","authors":"D. Duka","doi":"10.1109/ELMAR.2006.329541","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329541","url":null,"abstract":"The telecommunications community is migrating toward a new network architecture based on horizontal layers. The separation of the network functionality into independent layers is a key principle in modern networking in the tele- and datacom industry today. The layered thinking is also a very fundamental and visible aspect in a number of standardization initiatives and industry forums, such as the multiservices switching forum, led by several of the largest operators and manufacturers. This paper presents the short overview of connectivity packet platform as a carrier-class technology that has been positioned for access and transport products in mobile and fixed networks based on layered design","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123988464","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
Uncertainty evaluation of slope coefficient of high precision displacement sensor 高精度位移传感器斜率系数的不确定度评定
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329555
V. Tudić
{"title":"Uncertainty evaluation of slope coefficient of high precision displacement sensor","authors":"V. Tudić","doi":"10.1109/ELMAR.2006.329555","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329555","url":null,"abstract":"Because of high precision displacement determination in many marine power aggregates governing systems and other fine servomechanisms, uncertainty determination should be taken. Value of absolute displacement of all precise movement parts in hydraulic servomechanisms of governing systems must be controlled periodically. Uncertainty evaluation of displacement sensor and its sensibility cannot be avoided in phase of its construction, production and implication. In process of uncertainty evaluation all contributions and imperfections must be considered, but some with less influences in evaluating process because of clearly thesis description are unimportant (elements temperature stability, electromagnetic influences). The purpose of thesis is to calculate and predict maximal slope coefficient uncertainty and its affection to the measuring value in similar cases. Scientific method, issued algorithm and calculation model performed in this paper can be used as application in standard calibration protocols","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124060025","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
Noise Influence on Quality of Communication in a Tram 噪声对有轨电车通信质量的影响
Proceedings ELMAR 2006 Pub Date : 2006-06-07 DOI: 10.1109/ELMAR.2006.329534
A. Radic, V. Simunic, B. Ivančević
{"title":"Noise Influence on Quality of Communication in a Tram","authors":"A. Radic, V. Simunic, B. Ivančević","doi":"10.1109/ELMAR.2006.329534","DOIUrl":"https://doi.org/10.1109/ELMAR.2006.329534","url":null,"abstract":"This paper is about testing the intelligibility of speech during tram ride (tram model TMK 2200). Masking signal (noise) was recorded while driving in the tram. Logatomes signal was recorded in the laboratory. Test signal was produced by mixing of noise and logatomes signals. Subjects were tested in the laboratory. Measurement results analysis shows us that in realistic conditions, during the ride, the quality, of communication is extremely low. We conducted additional tests with reduced noise level. The intelligibility results were much better","PeriodicalId":430777,"journal":{"name":"Proceedings ELMAR 2006","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128663637","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
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