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2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)最新文献

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3D endoscopic imaging systems with DIBR 三维内窥镜成像系统与DIBR
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432734
Jen-Shiun Chiang, Chih-Hsien Hsia, Hsin-Ting Li, Chien-Sheng Lin, Kuang-Yi Chou, Po-Han Wu, Cheng-Han Lin
{"title":"3D endoscopic imaging systems with DIBR","authors":"Jen-Shiun Chiang, Chih-Hsien Hsia, Hsin-Ting Li, Chien-Sheng Lin, Kuang-Yi Chou, Po-Han Wu, Cheng-Han Lin","doi":"10.1109/ISPACS.2015.7432734","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432734","url":null,"abstract":"3D endoscopic imaging has played an important role in the development of the medical industry, making it easy for medical doctors to judge the visual depth of ulcers or tumors and thereby decreasing the risk of unnecessary damages to other tissues. A traditional 2D endoscopic image can be converted into a 3D view through depth estimation and the use of a Depth Image-Based Rendering (DIBR) method. However, the application of depth estimation may be too time-consuming for use with current medical equipment. In order to reduce the computing time, this work adopts hierarchical similarity analysis to separate images into different sizes in order to analyze the similarity and depth information estimation. As a result, this method not only reduces the system computation time, making it appropriate for use with current medical equipment, but also provide a good 3D view for medical doctors.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123761179","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
The accuracy improvement using WLAN for indoor positioning system 无线局域网用于室内定位系统精度的提高
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432818
Ye Tian, Wenjian Wang, C. Ahn, T. Omori, K. Hashimoto
{"title":"The accuracy improvement using WLAN for indoor positioning system","authors":"Ye Tian, Wenjian Wang, C. Ahn, T. Omori, K. Hashimoto","doi":"10.1109/ISPACS.2015.7432818","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432818","url":null,"abstract":"At present, the theory and algorithm of wireless indoor positioning systems have been widely researched. Some applications of these systems have been successfully used such as inventory management. Nevertheless, positioning using radio signals indoor is subject to multipath propagation and other causes. Therefore, how to determine the location accurately has been recognized as a difficult task. This paper focuses on one of the positioning methods called received signal strength indication(RSSI) in a Wireless Local Area Network(WLAN). To improve the positioning accuracy, we proposed a scheme which to estimate the distance between access point(AP) and mobile station(MS) using the average of pilot signal strength in frequency domain. We then propose another scheme to estimate the position of the MS based on the estimated distances. At last, the simulations results show that the proposed schemes has a higher degree accuracy compared with the conventional methods.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116515078","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: 6
A heuristic approach for designing microphone array directivity based on PSO 一种基于粒子群算法的传声器阵列指向性设计方法
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432747
Haruna Aimi, K. Suyama
{"title":"A heuristic approach for designing microphone array directivity based on PSO","authors":"Haruna Aimi, K. Suyama","doi":"10.1109/ISPACS.2015.7432747","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432747","url":null,"abstract":"In this paper, a novel approach for designing two dimensional directivity of microphone array using IIR (Infinite Impulse Response) filters is presented. A design problem based on the minimax criterion is formulated as a non-linear programming problem and cannot be solved easily. In our method, PSO (Particle Swarm Optimization) is applied to solve such a problem. Although PSO is applicable easily to solve non-linear optimization problems, it is reported that a local minimum stagnation occurs due to its strong intensification. The design problem of IIR filters is assumed to occur the stagnation because it has a lot of local minimums. Therefore, a method for avoiding the local minimum stagnation plays an important role. In this paper, multiple swarm PSO is used to avoid the local minimum stagnation by reallocating particles. Several design examples are shown to present a design performance.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125979832","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
Brain waves as unconscious biometrics towards continuous authentication - the effects of introducing PCA into feature extraction 脑电波作为无意识生物识别技术走向连续认证——将PCA引入特征提取的效果
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432808
I. Nakanishi, Takuya Yoshikawa
{"title":"Brain waves as unconscious biometrics towards continuous authentication - the effects of introducing PCA into feature extraction","authors":"I. Nakanishi, Takuya Yoshikawa","doi":"10.1109/ISPACS.2015.7432808","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432808","url":null,"abstract":"For user management in high-security systems, continuous authentication is required, where unconscious biometrics is suitable. We have proposed to use brain waves as such unconscious biometrics. Assuming continuous authentication of drivers, we have measured brain waves in virtual driving environments and evaluated the verification performance. In this paper, we introduce Principle Component Analysis (PCA) into the feature extraction. It is confirmed that the introduction of PCA is effective for improving the verification performance.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132212385","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: 13
Performance comparison of denoising methods for heart sound signal 心音信号去噪方法的性能比较
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432811
A. H. Salman, Nur Ahmadi, R. Mengko, A. Langi, T. Mengko
{"title":"Performance comparison of denoising methods for heart sound signal","authors":"A. H. Salman, Nur Ahmadi, R. Mengko, A. Langi, T. Mengko","doi":"10.1109/ISPACS.2015.7432811","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432811","url":null,"abstract":"This paper presents the performance analysis and comparison of three denosing methods for heart sound signal based on wavelet transform (WT), total variation (TV), and empirical mode decomposition (EMD). Extensive simulations are performed using normal and abnormal heart sound data and the performance is evaluated in terms of signal-to-noise ratio (SNR), root mean square error (RMSE), and percent root mean square difference (PRD). The simulation results show that EMD based denosing method outperforms two other methods.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133465652","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: 22
UAV-based localization for distributed tactical wireless networks using archimedean spiral 基于无人机的分布式战术无线网络阿基米德螺旋定位
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432802
Oka Danil Saputra, M. Irfan, Nadea Nabilla Putri, S. Shin
{"title":"UAV-based localization for distributed tactical wireless networks using archimedean spiral","authors":"Oka Danil Saputra, M. Irfan, Nadea Nabilla Putri, S. Shin","doi":"10.1109/ISPACS.2015.7432802","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432802","url":null,"abstract":"In this paper, we proposed archimedean spiral for UAV trajectory to localization position of military vehicle in tactical wireless networks. In our scenario, the vehicle called cluster head (CH), which are correspond to tank or humvee deploy randomly at Battlefield. Furthermore, Time differential of arrival (TDOA) technique is used for the communication system between UAV in space and CH in battlefield. Finally for clarify feasibility of our proposed method, the UAV line movement and localization error of CH are simulated using Matlab. Lastly, the comparison performance of trajectory e.g., circle, spiral, and archimedean spiral regarding average localization error and coverage area are presented in result.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127886163","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
DSP-based mitigation scheme for PA to LO self-coupling impairment 基于dsp的PA对LO自耦合损伤缓解方案
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432845
K. Lee
{"title":"DSP-based mitigation scheme for PA to LO self-coupling impairment","authors":"K. Lee","doi":"10.1109/ISPACS.2015.7432845","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432845","url":null,"abstract":"This paper presents an effective mitigation scheme to alleviate signal distortion and spectral broadening caused by PA (power amplifier) to transmitter LO (local oscillator) self-coupling of a wireless SISO (single input, single-output) communication system. After constructing the equivalent baseband model of this RF impairment, important insights can be gained, from which a mitigation algorithm incorporates LS (least-squares) method for calibration and DSP-based pre-distortion technique for compensation is proposed. A MATLAB based IEEE 802.11g WLAN (wireless local area network) transceiver is developed to evaluate the realistic system impacts. The effectiveness of the proposed scheme and quantitative analysis on performance metrics such as ACPR (adjacent channel power ratio), EVM (error vector magnitude) and BER (bit error rate) will also be conducted through simulation.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128483582","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 broadband Low Noise Amplifier (LNA) 4G LTE TDD 2.3 GHz for modem application 用于调制解调器应用的宽带低噪声放大器(LNA)的设计
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432821
Ahmad Sidik, Maulana Yusuf Fathany, B. R. Alam
{"title":"Design of broadband Low Noise Amplifier (LNA) 4G LTE TDD 2.3 GHz for modem application","authors":"Ahmad Sidik, Maulana Yusuf Fathany, B. R. Alam","doi":"10.1109/ISPACS.2015.7432821","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432821","url":null,"abstract":"This paper discusses the design and simulation of Low Noise Amplifier (LNA) for 4G LTE communication system at 2.3 GHz. The design and simulation are performed on Advance Design System (ADS) design suite. Low noise transistor ATF-54143 with minimum noise figure of 0.46 dB is used with class A bias circuit. Drain current and drain to source voltage are measured to be 28.07 mA and 2.77 volt with supply voltage of 5 volt. Noise figure as low as 0.9 dB is used to compensate the 13.8 dB gain of the amplifier. Simulation with QPSK modulation and channel modeling is performed and yield the same transmitted and received data.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116681457","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
VLC physical layer design based on Pulse Position Modulation (PPM) for stable illumination 基于脉冲位置调制(PPM)实现稳定照明的VLC物理层设计
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432798
Angga Pradana, Nur Ahmadi, T. Adiono, Willy Anugrah Cahyadi, Yeon-ho Chung
{"title":"VLC physical layer design based on Pulse Position Modulation (PPM) for stable illumination","authors":"Angga Pradana, Nur Ahmadi, T. Adiono, Willy Anugrah Cahyadi, Yeon-ho Chung","doi":"10.1109/ISPACS.2015.7432798","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432798","url":null,"abstract":"Visible Light Communication (VLC) is promising new technology to be applied in the lighting system infrastructure. This communication function should not interfere with the existing lighting system. In order to prevent from this interference, the utilized modulation scheme should have a limited dynamic range to avoid flickering and dimming effect. We propose Pulse Position Modulation (PPM) technique in our VLC system due to its very minimum dynamic range feature. This paper describes the design and analysis of VLC physical layer using PPM scheme to obtain a stable illumination. The design of physical layer consists of analog front end (AFE) circuit and the data processing which is implemented in microcontroller and FPGA. Based on the test results of our VLC system using low cost photo detector, the system is able to provide stable illumination while reaching the maximum data transfer rate of 20 kbps.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116837176","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: 23
A sequential processing model for speech separation based on auditory scene analysis 基于听觉场景分析的语音分离序列处理模型
2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432750
I. Nakanishi, Junichi Hanada
{"title":"A sequential processing model for speech separation based on auditory scene analysis","authors":"I. Nakanishi, Junichi Hanada","doi":"10.1109/ISPACS.2015.7432750","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432750","url":null,"abstract":"Speech separation based on auditory scene analysis (ASA) has been widely studied. We propose a sequential processing model of computational ASA (CASA), in which a mixed speech is sequentially decomposed into frequency signals using modified Discrete Fourier Transform (DFT), four features in ASA are extracted from the decomposed frequency signals, the frequency signals are regrouped by examining the extracted features, and each separated speech is obtained by recomposing the frequency signals in a group. In this paper, we attempt to separate speeches only using the harmonic structure, which is one of the features and regarded as the backbone in our sequential implementation model.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116949888","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
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