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2010 International Conference on Signal Acquisition and Processing最新文献

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Tamper Proofing 3D Models 防篡改3D模型
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.85
M. Motwani, B. Sridharan, R. Motwani, F. Harris
{"title":"Tamper Proofing 3D Models","authors":"M. Motwani, B. Sridharan, R. Motwani, F. Harris","doi":"10.1109/ICSAP.2010.85","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.85","url":null,"abstract":"This paper describes a novel algorithm designed for tamper proofing of 3D models. Fragile watermarking is a known technique for detecting location of tamper in the artwork. However, to detect even minute changes, the watermark needs to be distributed throughout the 3D model. This poses as a challenge since watermarking all vertices can cause perceptible distortion. The proposed algorithm solves this problem by inserting a watermark in all the vertices of a 3D model. The watermark is randomly added to each and every vertex of the 3D model by modifying the coordinate location of the vertices. Genetic Algorithms have been used to find the near optimal coordinate location of the watermarked vertex. The fitness function chosen is the Signal to Noise Ratio of the 1-ring neighbourhood of the vertex. This ensures that there exists no distortion in the watermarked model. The proposed approach is computationally inexpensive and experimental results indicate that the algorithm can efficiently detect location of any kind of unauthorized data modification.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130191327","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
Design and Development of Digital Signal Processor Based Phonocardiogram System 基于数字信号处理器的心音图系统的设计与开发
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.60
D. Balasubramaniam, D. Nedumaran
{"title":"Design and Development of Digital Signal Processor Based Phonocardiogram System","authors":"D. Balasubramaniam, D. Nedumaran","doi":"10.1109/ICSAP.2010.60","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.60","url":null,"abstract":"This paper presents a real-time and cost effective system for the heart auscultation monitoring and hearing. The system design comprises of a Phonocardiographic pre-amplifier circuit with a TMS320C6711 Digital Signal Processor Starter kit (DSK) and its associated software. The Phonocardiogram signal from the pre-amplifier circuit is acquired through the CODEC input of the DSK and subjected to various signal processing techniques. Frequency analysis and component analysis are performed to identify the normal and pathological heart sound patterns using Short Time Fourier Transform (STFT) and Wavelet transform techniques respectively. To study the performance of the system, the analysis of heart sound patterns for various diseases were conducted. Finally the computational efficiency of the system was calculated by comparing the execution time of the algorithms in the proposed DSPPCG (Digital Signal Processor based Phonocardiogram) system with the PCPCG (PC based Phonocardiogram) system.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133550201","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
Estimation of Approximate Entropy of Heart Rate Variability of Healthy Subjects and Investigation of the Effect of Meditation on It 健康受试者心率变异性近似熵的估计及冥想对其影响的研究
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.35
C. Madhavi, A. Ananth
{"title":"Estimation of Approximate Entropy of Heart Rate Variability of Healthy Subjects and Investigation of the Effect of Meditation on It","authors":"C. Madhavi, A. Ananth","doi":"10.1109/ICSAP.2010.35","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.35","url":null,"abstract":"The human heart is a nonlinear system because the heart rhythm is modulated by the Autonomic nervous system (ANS). The modulation of the heart rate about its mean value is called Heart rate variability (HRV). Nonlinear analysis of HRV is helpful to assess the cardiac health noninvasivly. The autonomic dysfunction also causes cardiac malfunction. The effect of ANS on cardiac functioning is investigated by estimating Approximate entropy (ApEn) of HRV data of a few healthy subjects before and after meditation. It has been found that the entropy parameters indicate improved cardiac health after meditation. Which means the heart rhythm was more dynamic after meditation ApEn is estimated by assuming that the data is stationary.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130713541","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
Instrument Landing System: Enhanced Model 仪表着陆系统:增强型
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.41
Parisa Noshiravani, Arman Rezaee
{"title":"Instrument Landing System: Enhanced Model","authors":"Parisa Noshiravani, Arman Rezaee","doi":"10.1109/ICSAP.2010.41","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.41","url":null,"abstract":"We know that the ILS system in aircraft navigation have some problems. That when the signals contact some obstructions near airport runway the aircraft receiver makes some mistakes. In this paper we offer some enhanced model to solve these limitations.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131778863","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
An Efficient IFIR Filter Based Prototype Filter Design for Cosine Modulated Transmultiplexers 基于高效IFIR滤波器的余弦调制复用器原型滤波器设计
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.76
Neela Rayavarapu, N. R. Prakash
{"title":"An Efficient IFIR Filter Based Prototype Filter Design for Cosine Modulated Transmultiplexers","authors":"Neela Rayavarapu, N. R. Prakash","doi":"10.1109/ICSAP.2010.76","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.76","url":null,"abstract":"Cosine modulated filter banks and transmultiplexers are widely used because of the ease of implementation, since they have the advantage of higher obtainable attenuation in the stopband. But this leads to certain drawbacks because it would mean longer length filters and longer delays. Longer length filters would mean that that computational complexity increases. The IFIR approach to filter design is known to yield great savings in computation. In this paper an earlier approach to prototype filter design based on the Kaiser window is revisited and the same is implemented using an IFIR approach. Saving in computation will be highlighted and any deviation in performance from the previous approach will be determined. Factors governing choice of the stretch factor will be determined","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127877255","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
Efficient Conference Key Distribution for Dynamic Groups 高效的动态分组会议密钥分配
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.66
Valli Kumari Vatsavayi, D. Raju, K. V. S. V. N. Raju
{"title":"Efficient Conference Key Distribution for Dynamic Groups","authors":"Valli Kumari Vatsavayi, D. Raju, K. V. S. V. N. Raju","doi":"10.1109/ICSAP.2010.66","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.66","url":null,"abstract":"Life of modern people is greatly influenced byte emerging technologies and tremendous growth of the internet. The growth of the Internet is the driving force behind many popular multicast based group applications like e-learning, conferencing, TV over Internet, interactive gaming etc. These group based are vulnerable to many attacks. The features that make multicast so applicative, in turn make security a challenging issue. The dynamic changes in the group membership with frequent joins and evictions are the prime factor which makes the security difficult in any group based applications. Key distribution and key management is the challenging issue with any of these applications. This paper describes a novel technique for secure distribution of the group key. The idea proposed in this paper makes use of the hybrid key trees which allow the complete elimination of the secure channels for the distribution of the key material unlike many of the earlier proposed schemes, minimum storage requirements at each member, elimination of the chances of generation of week keys, less number of rounds and minimum computational overhead.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115752366","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
Microcontroller Based Low Cost Controlled Rectifiers Training Module for Power Electronics Laboratory 基于单片机的电力电子实验室低成本控制整流器训练模块
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.86
U. Farooq, K. M. Hasan, M. Hasan, M. Asad, Asim Iqbal, M. K. Akhtar
{"title":"Microcontroller Based Low Cost Controlled Rectifiers Training Module for Power Electronics Laboratory","authors":"U. Farooq, K. M. Hasan, M. Hasan, M. Asad, Asim Iqbal, M. K. Akhtar","doi":"10.1109/ICSAP.2010.86","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.86","url":null,"abstract":"The junior level Power Electronics Lab is an important component of Electrical Engineering curriculum at University of The Punjab, Lahore. It serves to familiarize the students with the design simulation and analysis of power electronic converters. In this paper, design and implementation of a low cost microcontroller based controlled rectifier training module for single-phase system to be utilized in Power Electronics Lab is presented. The module comprises of various units. The first unit is zero crossing detector followed by the pulse shifting unit, pulse shaping unit, pulse isolation unit, thyristor unit, diode unit, load unit, current sense unit, voltage sense unit and finally rpm sense unit. Various experiments are designed to study the different configurations of the controlled rectifiers. These configurations include half converter, semi converter, full converter, dual converter, series semi converter and series full converter. Some types of AC voltage controllers can also be studied. This system may readily be extended to study three phase-controlled rectifiers.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131849021","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
New Optimized IIR Low-Pass Differentiators 新的优化IIR低通微分器
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.22
Amir Tahmasbi, S. B. Shokouhi
{"title":"New Optimized IIR Low-Pass Differentiators","authors":"Amir Tahmasbi, S. B. Shokouhi","doi":"10.1109/ICSAP.2010.22","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.22","url":null,"abstract":"In this paper a novel approach is proposed for approximating Parks-McClellan low-pass differentiators using optimized low-order IIR filters. Indeed, a suitable IIR filter is designed for approximating Parks- McClellan Low pass differentiator using modified Al-Alaoui’s method, and then denominator polynomial coefficients of resulting transfer function optimized by Genetic algorithm. A suitable fitness function is defined to optimize both magnitude and phase responses; moreover, appropriate weighting coefficients and GA parameters are reported for several cut-off frequencies. It is shown that the order-4 proposed low-pass differentiators yield a frequency response which is almost equal to order-30Parks-McClellan low-pass differentiators. Furthermore, they yield steep roll-off properties, small magnitude error and almost linear phase in the pass-band; the percentage error of magnitude response is less than 0.5%.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"293 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116581208","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
Fuzzy Based Ant Miner Algorithm in Datamining for Hepatitis 基于模糊蚂蚁挖掘算法的肝炎数据挖掘
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.54
S. Madhusudhanan, M. Karnan, K. Gandhi
{"title":"Fuzzy Based Ant Miner Algorithm in Datamining for Hepatitis","authors":"S. Madhusudhanan, M. Karnan, K. Gandhi","doi":"10.1109/ICSAP.2010.54","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.54","url":null,"abstract":"Data mining or knowledge discovery in databases in simple words is the non-trivial extraction of implicit, previously unknown and potentially useful information from data. It deals with the discovery of hidden knowledge, unexpected patterns and new rules from large databases. Knowledge discovery in databases is the process of identifying a valid, potentially useful and ultimately understandable structure in data. Datasets of hepatitis are collected from the benchmark repository and training datasets are revealed. Data mining tasks including classification, clustering, regression etc., In order to discover the classification rules, ant miner algorithm is used. The ant miner algorithm is based on the behavior of ants in searching of food. The proposed method extracts the classified rules using Fuzzy Based Ant Miner Algorithm (FACO). The training set is taken and the FACO algorithm is applied initially for classifying the categorical attributes. Using heuristic functions, the best rules are generated. Next, rule pruning is performed to obtain the optimized rules based on quality functions. The accuracy of the designed system is determined using the test cases. FACO is used to bring out with better quality for the classified rules. The project aims at obtaining the best rules with maximum accuracy. It provides the secondary opinion for the doctors and it predicts the hepatitis in the earlier stage.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116463594","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: 10
Content Dependent Data Hiding on GSM Full Rate Encoded Speech GSM全速率编码语音的内容相关数据隐藏
2010 International Conference on Signal Acquisition and Processing Pub Date : 2010-02-09 DOI: 10.1109/ICSAP.2010.73
Ali Shahbazi, Erfan Soltanmohammadi, A. R. Roknabadi, A. Sayadiyan, Saeed Mosayyebpour
{"title":"Content Dependent Data Hiding on GSM Full Rate Encoded Speech","authors":"Ali Shahbazi, Erfan Soltanmohammadi, A. R. Roknabadi, A. Sayadiyan, Saeed Mosayyebpour","doi":"10.1109/ICSAP.2010.73","DOIUrl":"https://doi.org/10.1109/ICSAP.2010.73","url":null,"abstract":"This paper introduces a steganographic approach to embed data on compressed speech bit stream in order to hide secret data. This method may be used by any kind of encoded bit stream, but this research concentrates on full rate (GSM 6.10) encoded bit stream. This method allows user to adjust embedded data bit-rate or speech quality. Speech quality is determined by Perceptual Evaluation of Speech Quality (PESQ) which is an objective testing. The effect of embedding data to each specific bit of GSM Full Rate coefficients, on speech quality has been investigated and the less important bits are selected to embed secret data. Meanwhile for approaching a higher speech quality, the data embedding positions are based on different speech frame types. In other words the proposed technique is modified to achieve a content dependent algorithm.","PeriodicalId":303366,"journal":{"name":"2010 International Conference on Signal Acquisition and Processing","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129562125","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: 10
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