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2015 International Conference on Advanced Technologies for Communications (ATC)最新文献

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Manifold-based learning for person re-identification 基于流形的人再识别学习
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388420
N.-A Che Viet, D. T. Cong, T. Ho-Phuoc
{"title":"Manifold-based learning for person re-identification","authors":"N.-A Che Viet, D. T. Cong, T. Ho-Phuoc","doi":"10.1109/ATC.2015.7388420","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388420","url":null,"abstract":"The research described in this paper consists in developing a system for re-identifying people across multiple non-overlapping cameras. The proposed approach consists of three main steps: appearance-based feature extraction, data projection on manifold space, and similarity estimation for person re-identification. We first decompose the human image into a grid of patches and characterize each patch by a colorimetric feature vector. These patches are then embedded into a non-linear manifold, which preserves the local and global proximity among data points. Finally, a matching framework is introduced to estimate the similarity of image pairs and to make the final decision of re-identification. The performance of our system is evaluated on the well-known VIPeR dataset. The experimental results show that the proposed system leads to satisfactory results.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"9 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":"133326360","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 3D model to characterize EM far-field scattering and its applications in SAR data synthesis EM远场散射的三维模型及其在SAR数据合成中的应用
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388408
Nguyen Truong Xuan Minh, M. Linh, Nguyen D. H. Uyen, T. Su
{"title":"A 3D model to characterize EM far-field scattering and its applications in SAR data synthesis","authors":"Nguyen Truong Xuan Minh, M. Linh, Nguyen D. H. Uyen, T. Su","doi":"10.1109/ATC.2015.7388408","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388408","url":null,"abstract":"In this research paper, we propose a 3D propagation model that enables to characterize the electromagnetic far-field scattered by a complex scenario at high-frequency bands (i.e. Ka-band). This proposed model is based on the combination between the asymptotic method Uniform Theory of Diffraction (UTD) and a Ray-Tracing (RT) technique. We have conducted some comparisons with the 33-37GHz indoor measurements in the anechoic chamber of School of Electrical Engineering (IU, VNU-HCMC) conducive to validate the model. The validated scenarios are composed of two metallic plates representing walls only and then a 4-in-1 corner reflector bestowed between them. Two identical broadband BBHA9170 antennas are used as transmitter and receiver in order to represent the bistatic configuration. These comparisons have shown that the model gives a good agreement with the experimental results. At the end, we apply the model to synthesize data for evaluating SAR imaging algorithms with the above configurations.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"11 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":"130549902","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
Improving the quality of medical images in shearlet domain 提高剪切波域医学图像的质量
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388361
N. Binh, V. T. H. Tuyet
{"title":"Improving the quality of medical images in shearlet domain","authors":"N. Binh, V. T. H. Tuyet","doi":"10.1109/ATC.2015.7388361","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388361","url":null,"abstract":"In clinical diagnostics, the diagnostic approach based on images obtained from equipment of which medical machine (diagnostic imaging) plays an important role. However, most of medical images have blur combined with noise. There are many reasons to create blur combined with noise in medical images such as the environment, capture device, technician's skills, etc. This problem will affect the process diagnose. In this paper, we proposed a new method to improve the quality of medical images. The proposed method uses cycle spinning combined with Kernels set in shearlet domain. Our algorithm removes the noise and blur details in shearlet domain, and must not the value of point-spread function (PSF). The proposed algorithm not only significantly improves the edge accuracy, but also reduces the loss of information in medical image.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"8 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":"126965320","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
Analysis of cognitive cooperative networks with best relay selection and diversity reception 具有最佳中继选择和分集接收的认知合作网络分析
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388412
H. Khuong, P. Sofotasios, V. Son, L. Tra, P. Liên
{"title":"Analysis of cognitive cooperative networks with best relay selection and diversity reception","authors":"H. Khuong, P. Sofotasios, V. Son, L. Tra, P. Liên","doi":"10.1109/ATC.2015.7388412","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388412","url":null,"abstract":"This paper analyzes outage performance of cognitive cooperative networks with best relay selection (BRS) and maximum ratio combining (MRC) under maximum transmit power constraint, licensed outage constraint, erroneous channel information, independent non-identical (i.n.i) fading channels, and licensed users' interference. To this end, we firstly propose power allocation for unlicensed transmitters to meet power constraints and account for erroneous channel information and licensed users' interference. Then, we propose an exact closed-form outage probability formula for the unlicensed network to quickly provide useful insights into system performance. Various results demonstrate error floor in the unlicensed network, performance trade-off between the unlicensed network and the licensed network, substantial system performance degradation owing to erroneous channel information and licensed users' interference, and considerable performance enhancement due to the increase in the number of relays.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"28 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":"123843211","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
On the design of wireless Smart Grid network for an apartment building based on 868 MHz low power wireless SoC 基于868 MHz低功耗无线SoC的公寓楼无线智能电网设计
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388371
L. Nguyen, Minh-Triet Nguyen, L. Q. Cuong, Tuan-Duc Nguyen
{"title":"On the design of wireless Smart Grid network for an apartment building based on 868 MHz low power wireless SoC","authors":"L. Nguyen, Minh-Triet Nguyen, L. Q. Cuong, Tuan-Duc Nguyen","doi":"10.1109/ATC.2015.7388371","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388371","url":null,"abstract":"This paper presents a wireless Smart Grid network for high-rise apartment building application. In order to construct Smart Grid network for building, a cluster based wireless network where Coordinator collects electricity usage information from end-nodes of its cluster. GPRS/3G gateway is used to link each cluster to Remote center. This configuration can deploy all services of Smart Grid application, advantages of this network are simple implementation, low cost and low consumption. Several low cost and low consumption wireless sub-GHz transceivers are studied in this paper, consequently an appropriate wireless hardware is chosen and a design of Smart Grid home gateway is presented. The cluster size of network is evaluated by a good transmission performance and latency based on NS-2 (network simulation 2) tool. Following obtained results, an optimum Smart Grid network for high-rise apartment building is finally proposed.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"42 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":"121801134","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 new imprinted tablet recognition algorithm using polar transform and neural networks 一种基于极坐标变换和神经网络的刻字识别新算法
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388356
Thai-Hoang Huynh, Tan-Sy Nguyen
{"title":"A new imprinted tablet recognition algorithm using polar transform and neural networks","authors":"Thai-Hoang Huynh, Tan-Sy Nguyen","doi":"10.1109/ATC.2015.7388356","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388356","url":null,"abstract":"The paper presents a new imprinted tablet recognition algorithm using polar transform and neural networks. The purpose of this algorithm is to determine if inspected tablets have the same imprinted symbol as a reference tablet or not. The algorithm consists of two phases namely neural network training phase and imprinted tablet recognition phase. In the neural network training phase, firstly blister images are captured by a CCD camera. The blister image is partitioned into separate tablet images. A set of sample tablet images with the same imprinted symbols are chosen. Imprinted symbol in the sample tablet is filtered out using image processing operations. The sample tablets are then rotated to be aligned with a reference tablet using polar transform. Next imprinted symbol features which are the total number of white pixels in a rectangle window are extracted to train neural networks. In imprinted tablet recognition phase, the inspected tablet image is first rotated to be aligned with the reference image, then features of the image are extracted and fed to the inputs of the trained neural networks. The output of the trained neural network allows to determine if the inspected table has the same imprinted symbol as the reference tablet or not. Experimental result shows that the proposed algorithm can recognize imprinted tablet accurately, the result is robust to uncertainties such as tablet rotation and lighting condition.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"17 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":"128792558","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
A pipelined Schnorr-Euchner sphere decoder architecture for MIMO systems 一种用于MIMO系统的流水线Schnorr-Euchner球体解码器结构
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388353
Xuan-Nghia Nguyen, Minh-Tuan Le, N. Pham, Vu-Duc Ngo
{"title":"A pipelined Schnorr-Euchner sphere decoder architecture for MIMO systems","authors":"Xuan-Nghia Nguyen, Minh-Tuan Le, N. Pham, Vu-Duc Ngo","doi":"10.1109/ATC.2015.7388353","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388353","url":null,"abstract":"The combination of multiple-input multiple-output (MIMO) and Space-Time Block Coding (STBC) is a potential solution for increasing throughput and reliability in data transmission. A pipelined architecture for a Schnorr-Euchner algorithm based sphere decoder used in STBC systems is proposed in this paper. The architecture was designed for a 2×2 antenna system with 16-quadrature amplitude modulation (16-QAM). The architecture was synthesized and implemented on a Xilinx Virtex-7 FPGA. The implementation results have shown that the proposed architecture outperforms existing ones in terms of throughput and maximum clock frequency thanks to pipelined processing.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"36 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":"126343552","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
Modeling of antenna geometry and thickness optimization for wideband UHF RFID tag 宽带超高频RFID标签天线几何建模及厚度优化
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388385
S. Nguyen, N. N. Le, Phat Tan Lam, E. Fribourg-Blanc, C. M. Dang, S. Tedjini
{"title":"Modeling of antenna geometry and thickness optimization for wideband UHF RFID tag","authors":"S. Nguyen, N. N. Le, Phat Tan Lam, E. Fribourg-Blanc, C. M. Dang, S. Tedjini","doi":"10.1109/ATC.2015.7388385","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388385","url":null,"abstract":"In this paper, we present a novel design for wideband Ultra High Frequency (UHF) Radio Frequency Identification (RFID) passive tag. The optimized design has compact size and covers all the bandwidth for global UHF RFID (860MHz-960MHz). For flexible customization in real-world applications, an equivalent model of antenna geometry is also proposed in this work. The agreement between equivalent model with lumped elements and 3D EM simulation of antenna geometry in 2 different simulator (ADS and CST Microwave Studio) proves the feasibility of design in practical applications. Furthermore, we executed also the optimization of antenna thickness in order to reduce the price of commercial tags. From experimental results, the good agreement between simulation and measurement proves the feasibility of equivalent model and the repeatability of fabrication process. The optimized design has the acceptable read-range (over 8m) in all the bandwidth of global UHF RFID and optimized thickness for antenna should be between 5-μm and 6-μm to keep the good performance of fabricated RFID tags.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"17 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":"126476093","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
Improved active contour based object segmentation using color informations 利用颜色信息改进了基于活动轮廓的目标分割
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388419
B. C. Nguyen, H. Nguyen, Khanh Gia Dinh, D. Vo
{"title":"Improved active contour based object segmentation using color informations","authors":"B. C. Nguyen, H. Nguyen, Khanh Gia Dinh, D. Vo","doi":"10.1109/ATC.2015.7388419","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388419","url":null,"abstract":"This paper proposes a novel method to segment objects based on color informations. The paper analyses the accuracy limitation of the previous methods using grayscale informations. Based on these analyses, the paper improves the object boundary detection by expanding energy calculation equations for color information channels. The algorithm uses all three RGB color channels to increase the accuracy. Simulation results on the large image data set verify the proposed algorithm's efficiency.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"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":"122653490","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
Multi-frequency characteristics of unequal element spacing array antenna for mobile base station use 移动基站用不等元间距阵列天线的多频特性
2015 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2015-10-01 DOI: 10.1109/ATC.2015.7388387
Trinh Kim Tuyen, Le Ha Khanh, N. Dinh, Yoshihide Yamada, N. Michishita
{"title":"Multi-frequency characteristics of unequal element spacing array antenna for mobile base station use","authors":"Trinh Kim Tuyen, Le Ha Khanh, N. Dinh, Yoshihide Yamada, N. Michishita","doi":"10.1109/ATC.2015.7388387","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388387","url":null,"abstract":"In mobile base station antennas, linear array antennas are employed to achieve shaped beams in the vertical plane. Also, antennas are designed to achieve multi-frequency use. In the case of expanding multi-frequency range, conventional equal element spacing configuration shows a defect of producing grating lobes. In order to suppress grating lobes, unequal element spacing is promising. In this paper, a radiation pattern synthesis based on a least mean square method (LMS) is applied to unequally spaced array configurations. In frequencies of 900 MHz, 1.5 GHz, 2.0 GHz, and 2.5 GHz, calculated results are presented. Suppression of grating lobes and increase of antenna gain are shown. Also, simulation results by FEKO using electric point source and dipole as array elements are shown to confirm accuracy of this method.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"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":"131477173","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
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