2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)最新文献_第4页

Accelerated verification of stability of simultaneous service multiserver systems 加速验证同步服务多服务器系统的稳定性

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382435

A. Rumyantsev, E. Morozov

引用次数: 4

Online system for the construction of structural models of information flows 在线系统构建信息流结构模型

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382430

A. Gorshenin, V. Kuzmin

引用次数: 7

An automatic emotion recognizer using MFCCs and Hidden Markov Models 基于mfc和隐马尔可夫模型的自动情绪识别

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382450

Chandni, Garima Vyas, M. Dutta, K. Říha, J. Prinosil

引用次数: 8

H.264 video encoder implementation impact on decoded picture quality in error prone IPTV environment 在易出错的IPTV环境下，H.264视频编码器的实现对解码图像质量的影响

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382415

M. Slanina, M. Shahid

{"title":"H.264 video encoder implementation impact on decoded picture quality in error prone IPTV environment","authors":"M. Slanina, M. Shahid","doi":"10.1109/ICUMT.2015.7382415","DOIUrl":"https://doi.org/10.1109/ICUMT.2015.7382415","url":null,"abstract":"H.264/AVC is currently the most popular standard in use for video encoding. To achieve efficient coding while maintaining the desired level of the visual quality and to combat the distortions that may get introduced while transmission through lossy channels, it is imperative to use the best possible coding methodologies. To this end, it is desirable to ascertain the available implementations of the standard under various conditions of coding and levels of network perturbations. We present here the results of evaluating the behavior of two widely used freely available (JM and x264) and one commercially available (Elecard) H.264/AVC based encoders for encoding of high definition (HD) videos through simulated error-prone networks. For the evaluation, we employed the widely used and well understood peak signal to nois ratio (PSNR). We use the Mann-Whitney test to reveal the differences in objective scores and prove a strong content dependency of results, which prevents us from favoring one implementation above the others. Interestingly, we find that for all implementations, that lossy transmission causes sequences encoded at higher bitrates to give worse scores than low bitrate videos subject to the same distortion.","PeriodicalId":319102,"journal":{"name":"2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"15 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123263737","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

Optimal control in a value-based automatic behavior composition framework 基于值的自动行为组合框架的最优控制

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382395

M. Barati, R. St.-Denis

引用次数: 0

Image-based pixel clustering and connected component labeling in left ventricle segmentation of cardiac MR images 基于图像像素聚类和连通分量标记的心脏MR图像左心室分割

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382454

Anupama Bhan, Ayush Goyal, M. Dutta, K. Říha, Yara Omran

{"title":"Image-based pixel clustering and connected component labeling in left ventricle segmentation of cardiac MR images","authors":"Anupama Bhan, Ayush Goyal, M. Dutta, K. Říha, Yara Omran","doi":"10.1109/ICUMT.2015.7382454","DOIUrl":"https://doi.org/10.1109/ICUMT.2015.7382454","url":null,"abstract":"This research demonstrates a completely automated sub-second fast technique for left ventricle (LV) segmentation from clinical cardiac MRI images for the crucial assessment of left ventricular dysfunction as a measure of cardiac diseases. In this work left ventricle segmentation is achieved using the combination of fuzzy c-means which is a pixel based classification method and connected component labeling. This strategic combination obviates user intervention and problem of seed point initialization as it automatically segments the LV accurately on all frames in the complete cardiac cycle in multi-frame MRI. The both methods complement each other such that it achieves sub-second fast computational speed of 0.7 seconds on average per frame. Thus this technique's computational time for left ventricle segmentation is much faster than iteration based methods. The accuracy of the automatic segmentation technique was tested against manual segmentation on the basis of correlation coefficient. The value of correlation coefficient between the automatic and manually traced LV boundaries was 0.932 which can be considered clinically significant.","PeriodicalId":319102,"journal":{"name":"2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126991266","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

Some results for inhomogeneous birth-and-death process with application to staffing problem in telecommunication service systems 非均匀生死过程的一些结果及其在电信服务系统人员配置问题中的应用

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382436

A. Zeifman, A. Korotysheva, R. Razumchik, V. Korolev, S. Shorgin

{"title":"Some results for inhomogeneous birth-and-death process with application to staffing problem in telecommunication service systems","authors":"A. Zeifman, A. Korotysheva, R. Razumchik, V. Korolev, S. Shorgin","doi":"10.1109/ICUMT.2015.7382436","DOIUrl":"https://doi.org/10.1109/ICUMT.2015.7382436","url":null,"abstract":"This paper proposes some analytical results that may facilitate long-term staffing problem in high-level telecommunication service systems (such as information call centers) in which rates of processes, that govern their behaviour, depend on time. We assume that except for arrivals of requests and their service there happen periodic system breakdowns (possibly with very long inter-breakdown periods). The staffing objective is “immediate service of a given percentage of incoming requests”. A natural model for such a time-varying processes is an innhomogeneous birth-death process for which we propose some general theoretical results concerning its ergodicity conditions and limiting behaviour. As an example we show that if the service system is modelled by multiserver queue Mt/Mt/S with state-dependent periodic arrivals, services and breakdown rates, then using obtained results one can calculate the quantities needed for the solution of optimization problem. Accuracy of approximation is briefly discussed.","PeriodicalId":319102,"journal":{"name":"2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134051746","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

Multisensor accuracy enhancement on the base of interval voting in form of preference aggregation in WSN for ecological monitoring 基于偏好聚合形式的区间投票的生态监测无线传感器网络多传感器精度增强

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382445

S. Muravyov, L. I. Khudonogova

引用次数: 6

Efficiency evaluation of different types of cryptography curves on low-power devices 低功耗器件上不同类型密码曲线的效率评估

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382441

R. Fujdiak, Pavel Mašek, Jiri Hosek, P. Mlynek, J. Misurec

引用次数: 17

Automatic exudates detection in fundus image using intensity thresholding and morphology 基于强度阈值和形态学的眼底图像渗出物自动检测

2015 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) Pub Date : 2015-10-01 DOI: 10.1109/ICUMT.2015.7382452

Anushikha Singh, Namita Sengar, M. Dutta, K. Říha, Jiri Minar

引用次数: 11