Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645894
Shuai Li, Lei Tao, Xiaojun Jing, Songlin Sun, Yueming Lu, Cheng-lin Zhao, Na Chen
Region-based image segmentation is an important preprocessing step for high-level computer vision tasks. This paper presents a novel approach to image partition into regions that reflect the objects in a scene. It explores the feasibility of utilizing Gray Level Co-occurrence Matrix (GLCM) and RIQ color feature of regions to improve the segmentation results produced by Recursive Shortest Spanning Tree (RSST) algorithm. Combination of Support Vector Machine (SVM) and Dempster-Shafer (D-S) theory is applied to the field of region merging. In the proposed algorithm, SVM is utilized as the identifier, and Basic Belief Assignment (BBA) function is constructed accordingly. Fused BBAs are obtained by applying the D-S evidence theory to the outputs of the identifiers. The experimental results show that the proposed method provides higher accuracy and stability when compared with the original RSST segmentation algorithm.
{"title":"A novel region-based image segmentation method using SVM and D-S evidence theory","authors":"Shuai Li, Lei Tao, Xiaojun Jing, Songlin Sun, Yueming Lu, Cheng-lin Zhao, Na Chen","doi":"10.1109/ISCIT.2013.6645894","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645894","url":null,"abstract":"Region-based image segmentation is an important preprocessing step for high-level computer vision tasks. This paper presents a novel approach to image partition into regions that reflect the objects in a scene. It explores the feasibility of utilizing Gray Level Co-occurrence Matrix (GLCM) and RIQ color feature of regions to improve the segmentation results produced by Recursive Shortest Spanning Tree (RSST) algorithm. Combination of Support Vector Machine (SVM) and Dempster-Shafer (D-S) theory is applied to the field of region merging. In the proposed algorithm, SVM is utilized as the identifier, and Basic Belief Assignment (BBA) function is constructed accordingly. Fused BBAs are obtained by applying the D-S evidence theory to the outputs of the identifiers. The experimental results show that the proposed method provides higher accuracy and stability when compared with the original RSST segmentation algorithm.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124269950","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645824
Hwaai Shian Kee, P. Lau, Sungkwon Park
Demand for videos delivered through Internet increased rapidly in recent years. In order to reduce the workload for origin server and to increase the reliability of video delivered, a dedicated content delivery network (CDN) is needed. CDN, these days, could provide a reliable network to deliver videos, often representing the origin server, to serve clients' request. Request routing peering system usually are able to route clients' request to an “appropriate” server, named as surrogate server, within a CDN. However, due to the cost involved for setting up new surrogate server, as the number of client increases, herewith, peering of CDN is being introduced to increase the capacity and the coverage, i.e. collaborating with several CDN. Our idea is to re-route a request to other CDNs when the request for a video in a particular CDN could not be found. In this paper, we also analyze the performance of such request routing system which is based on two policies, namely; (1) closest surrogate server, and (2) workload balance, in order to re-route requests to a “suitable” surrogate server, thus, providing a stably high throughput with low error rate when delivering videos to clients. The simulation results show that closest surrogate server policy performed better during non-peak hour while workload balance policy performed better during peak hour.
{"title":"Peered-CDN through request routing peering system for Video-on-Demand","authors":"Hwaai Shian Kee, P. Lau, Sungkwon Park","doi":"10.1109/ISCIT.2013.6645824","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645824","url":null,"abstract":"Demand for videos delivered through Internet increased rapidly in recent years. In order to reduce the workload for origin server and to increase the reliability of video delivered, a dedicated content delivery network (CDN) is needed. CDN, these days, could provide a reliable network to deliver videos, often representing the origin server, to serve clients' request. Request routing peering system usually are able to route clients' request to an “appropriate” server, named as surrogate server, within a CDN. However, due to the cost involved for setting up new surrogate server, as the number of client increases, herewith, peering of CDN is being introduced to increase the capacity and the coverage, i.e. collaborating with several CDN. Our idea is to re-route a request to other CDNs when the request for a video in a particular CDN could not be found. In this paper, we also analyze the performance of such request routing system which is based on two policies, namely; (1) closest surrogate server, and (2) workload balance, in order to re-route requests to a “suitable” surrogate server, thus, providing a stably high throughput with low error rate when delivering videos to clients. The simulation results show that closest surrogate server policy performed better during non-peak hour while workload balance policy performed better during peak hour.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"460 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116777165","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645951
Nilubon Kurubanjerdjit, Chien-Hung Huang, K. Ng
Identification of cancer associated proteins is the crucial problem in cancer research. Recently various techniques have been developed to discover novel cancer genes/proteins. Topological network of protein-protein interaction with their gene ontology annotation are good predictors of cancer proteins. Protein-protein interaction information has provided a basis for studying the cancer cellular network. In this study, we implemented clique percolation clustering approach on lung cancer protein-protein interaction information to identify cancer associated proteins, the enriched protein biological function in molecular networks of the clique motif and also the enriched KEGG pathways were observed.
{"title":"Identification of lung cancer associated protein by clique percolation clustering analysis","authors":"Nilubon Kurubanjerdjit, Chien-Hung Huang, K. Ng","doi":"10.1109/ISCIT.2013.6645951","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645951","url":null,"abstract":"Identification of cancer associated proteins is the crucial problem in cancer research. Recently various techniques have been developed to discover novel cancer genes/proteins. Topological network of protein-protein interaction with their gene ontology annotation are good predictors of cancer proteins. Protein-protein interaction information has provided a basis for studying the cancer cellular network. In this study, we implemented clique percolation clustering approach on lung cancer protein-protein interaction information to identify cancer associated proteins, the enriched protein biological function in molecular networks of the clique motif and also the enriched KEGG pathways were observed.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117181413","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645816
Md. Hashem Ali Khan, M. Lee
Block diagonalization (BD) is a linear precoding technique for multiuser multi-input multi-output (MIMO) broadcast channel that sends multiple interference free data streams to different users in the same cell. In this paper, we investigated the capacity of a multiuser multiple input multiple output (MIMO) system employing the block diagonalization scheme in presence of spatial correlation. The optimized diagonalization technique with power allocation scheme is proposed and verified.
{"title":"Performance of block diagonalization scheme for multiuser MIMO downlink heterogeneous channels","authors":"Md. Hashem Ali Khan, M. Lee","doi":"10.1109/ISCIT.2013.6645816","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645816","url":null,"abstract":"Block diagonalization (BD) is a linear precoding technique for multiuser multi-input multi-output (MIMO) broadcast channel that sends multiple interference free data streams to different users in the same cell. In this paper, we investigated the capacity of a multiuser multiple input multiple output (MIMO) system employing the block diagonalization scheme in presence of spatial correlation. The optimized diagonalization technique with power allocation scheme is proposed and verified.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"29 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120833145","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645861
Qiang Huang, Jun Feng
A 10-bit Digital-to-Analog Converter (DAC) in Charted 0.35um technology is presented. The design realizes a 10-bit, 25MS/s sampling rate and 10nA of the least significant bit output current DAC in the current steering structure. The whole DAC consists of synchronous unit circuit, decoding circuit, switch array, voltage-current transition circuit, current source array, output current mirror and so on. The area of the chip is 1.15μm×1.28μm. The power supply is 3.3V, the static power consumption is 4.8mW, the integral nonlinearity (INL) is 1LSB, the differential nonlinearity (DNL) is 1LSB. The test shows that the chip has a good performance on linearity when linearly increasing data is input.
{"title":"A 10-bit nanoampere level current-steering Digital to Analog Converter","authors":"Qiang Huang, Jun Feng","doi":"10.1109/ISCIT.2013.6645861","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645861","url":null,"abstract":"A 10-bit Digital-to-Analog Converter (DAC) in Charted 0.35um technology is presented. The design realizes a 10-bit, 25MS/s sampling rate and 10nA of the least significant bit output current DAC in the current steering structure. The whole DAC consists of synchronous unit circuit, decoding circuit, switch array, voltage-current transition circuit, current source array, output current mirror and so on. The area of the chip is 1.15μm×1.28μm. The power supply is 3.3V, the static power consumption is 4.8mW, the integral nonlinearity (INL) is 1LSB, the differential nonlinearity (DNL) is 1LSB. The test shows that the chip has a good performance on linearity when linearly increasing data is input.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124770408","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645930
Thawatchai Thongleam, S. Suwansawang, Varakorn Kasensuwan
A low voltage fully differential CMOS Op-amp is presented in this paper. The input stage of the circuit is designed using bulk-driven transistors while the output stage are connected in the class AB operation using by QFG transistors techniques. The auxiliary transconductance feedforward circuit are employed to circuit operate high gain and high CMRR. The proposed amplifier is designed using 0.18 μm CMOS technology, and verify by HSPICE. The simulation results show rail-to-rail input and output swings. The open-loop gain and phase margin are 70.6 dB and 55°. Eventually, the gain-bandwidth product, the CMRR, and the power consumption are 31.7 MHz (CL=20 pF), 158.8 dB (at 1 kHz) and 220.35 μW, respectively.
介绍了一种低压全差分CMOS运算放大器。电路的输入级采用体积驱动晶体管设计，输出级采用QFG晶体管技术连接到AB类操作。采用辅助的跨导前馈电路实现高增益和高共模比。该放大器采用0.18 μm CMOS工艺设计，并通过HSPICE验证。仿真结果显示了轨间输入和输出的波动。开环增益和相位裕度分别为70.6 dB和55°。最终，增益带宽积、CMRR和功耗分别为31.7 MHz (CL=20 pF)、158.8 dB (1khz)和220.35 μW。
{"title":"Low-voltage high gain, high CMRR and rail-to-rail bulk-driven Op-amp using feedforward technique","authors":"Thawatchai Thongleam, S. Suwansawang, Varakorn Kasensuwan","doi":"10.1109/ISCIT.2013.6645930","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645930","url":null,"abstract":"A low voltage fully differential CMOS Op-amp is presented in this paper. The input stage of the circuit is designed using bulk-driven transistors while the output stage are connected in the class AB operation using by QFG transistors techniques. The auxiliary transconductance feedforward circuit are employed to circuit operate high gain and high CMRR. The proposed amplifier is designed using 0.18 μm CMOS technology, and verify by HSPICE. The simulation results show rail-to-rail input and output swings. The open-loop gain and phase margin are 70.6 dB and 55°. Eventually, the gain-bandwidth product, the CMRR, and the power consumption are 31.7 MHz (CL=20 pF), 158.8 dB (at 1 kHz) and 220.35 μW, respectively.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123439713","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645907
E. Phaisangittisagul, Rapeepol Chongprachawat
Instead of introducing new learning algorithm for solving complex classification tasks, many research groups in machine learning have focused on creating a good feature representation. In addition, labeled data is often difficult and expensive to obtain sufficiently large amount of data. So, learning features from unlabeled data is proposed since unlabeled data is much easier to obtain than the labeled data. In this work, a highlevel feature representation is created by a sparse autoencoder with convolutional extraction. A sparse autoencoder is an unsupervised feedforward neural network that is trained to predict the input itself and has been widely used for learning good feature representation. A major advantage of this feature extraction approach not only provides good feature representation for higherlevel tasks but also can scale up to large images. However, there are several parameters that require careful selection to obtain high performance. The main objective in this work is to present a detailed analysis on the effect of receptive field resolution in handwritten classification based on MNIST database. In the experiment, the results show that receptive field resolution is one of the critical parameters to achieve state-of-the-art performance.
{"title":"Receptive field resolution analysis in convolutional feature extraction","authors":"E. Phaisangittisagul, Rapeepol Chongprachawat","doi":"10.1109/ISCIT.2013.6645907","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645907","url":null,"abstract":"Instead of introducing new learning algorithm for solving complex classification tasks, many research groups in machine learning have focused on creating a good feature representation. In addition, labeled data is often difficult and expensive to obtain sufficiently large amount of data. So, learning features from unlabeled data is proposed since unlabeled data is much easier to obtain than the labeled data. In this work, a highlevel feature representation is created by a sparse autoencoder with convolutional extraction. A sparse autoencoder is an unsupervised feedforward neural network that is trained to predict the input itself and has been widely used for learning good feature representation. A major advantage of this feature extraction approach not only provides good feature representation for higherlevel tasks but also can scale up to large images. However, there are several parameters that require careful selection to obtain high performance. The main objective in this work is to present a detailed analysis on the effect of receptive field resolution in handwritten classification based on MNIST database. In the experiment, the results show that receptive field resolution is one of the critical parameters to achieve state-of-the-art performance.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114907588","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645904
V. Patanavijit, C. Pirak, G. Ascheid
According to tremendous demands of high spatial resolution images, the brilliant research efforts in the area of image resolution enhancement algorithms have been raised hence the simple and fast computational resolution enhancement algorithms have been very attracted in the modern digital devices such as smart phone, CCTV, digital camera, etc. Due to its performance and fast computational time, this paper empirically experimental investigates the performance of the single image super resolve reconstruction based on the high-frequency image prediction for up to 14 standard test images. This paper has three main contributions. The first contribution is an experimental comprehensive study of an optimal interpolation technique selection and an optimal number of gradient directions in single image super resolve reconstruction based on the high-frequency image prediction under a noiseless environment. Moreover, the study of optimal M0 parameter selection is computationally explored for this environment. The second contribution is a study of an experimental performance of the reconstruction under several blurred environments at different blurred variance. Moreover, the study of optimal M0 parameter selection is computationally analyzed for this blurred environment. Finally, the last contribution is a study of an experimental performance of the reconstruction under several noisy environments at different noise power levels and the study of the optimal M0 parameter selection is analyzed.
{"title":"An experimental performance analysis of an image super resolve reconstruction based on the high-frequency image prediction under several blurred and noisy environments","authors":"V. Patanavijit, C. Pirak, G. Ascheid","doi":"10.1109/ISCIT.2013.6645904","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645904","url":null,"abstract":"According to tremendous demands of high spatial resolution images, the brilliant research efforts in the area of image resolution enhancement algorithms have been raised hence the simple and fast computational resolution enhancement algorithms have been very attracted in the modern digital devices such as smart phone, CCTV, digital camera, etc. Due to its performance and fast computational time, this paper empirically experimental investigates the performance of the single image super resolve reconstruction based on the high-frequency image prediction for up to 14 standard test images. This paper has three main contributions. The first contribution is an experimental comprehensive study of an optimal interpolation technique selection and an optimal number of gradient directions in single image super resolve reconstruction based on the high-frequency image prediction under a noiseless environment. Moreover, the study of optimal M0 parameter selection is computationally explored for this environment. The second contribution is a study of an experimental performance of the reconstruction under several blurred environments at different blurred variance. Moreover, the study of optimal M0 parameter selection is computationally analyzed for this blurred environment. Finally, the last contribution is a study of an experimental performance of the reconstruction under several noisy environments at different noise power levels and the study of the optimal M0 parameter selection is analyzed.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116006759","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645946
Nacha Chondamrongkul, P. Temdee
Cloud computing benefits software development by providing elastic resource pool and lower total IT investment; however there are still open issues such as security that we outsource data storage to third party without knowledge of where the data is actually stored, and software developed for particular cloud platform are technological lock-in which increase the cost of migration to other platform. This paper aims to solve these open issues by the proposed framework that serves as a runtime environment for development and execution of an enterprise application based on Model-Driven Engineering (MDE). The framework aims to shield complexity in the software development on multi-cloud platforms by automates the process from design to deployment; and yet include mechanism to support the developer to adapt the application to deploy on different target cloud platforms. The framework is illustrated by given sample development of customer relationship management and billing software system.
{"title":"Multi-cloud computing platform support with model-driven application runtime framework","authors":"Nacha Chondamrongkul, P. Temdee","doi":"10.1109/ISCIT.2013.6645946","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645946","url":null,"abstract":"Cloud computing benefits software development by providing elastic resource pool and lower total IT investment; however there are still open issues such as security that we outsource data storage to third party without knowledge of where the data is actually stored, and software developed for particular cloud platform are technological lock-in which increase the cost of migration to other platform. This paper aims to solve these open issues by the proposed framework that serves as a runtime environment for development and execution of an enterprise application based on Model-Driven Engineering (MDE). The framework aims to shield complexity in the software development on multi-cloud platforms by automates the process from design to deployment; and yet include mechanism to support the developer to adapt the application to deploy on different target cloud platforms. The framework is illustrated by given sample development of customer relationship management and billing software system.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"403 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116390047","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}
Pub Date : 2013-10-24DOI: 10.1109/ISCIT.2013.6645866
R. Sutar, A. Kothari, A. Keskar
Electrocardiogram (ECG) is the most preferably used noninvasive test for diagnosis of cardiac rhythm. Irregular rhythm of heart beats is measured in terms of Heart Rate Variability (HRV). Analysis of HRV plays an important role in automated diagnosis of cardiac status. This paper deals with development of an embedded system suitable for real time HRV analysis. A low cost embedded system for monitoring an ECG has been developed using operational amplifiers and a Microchip's microcontroller. Digitized ECG has been transmitted serially to computer for real time analysis of HRV. Nonlinear energy associated with QRS complex is highest amongst the ECG beat. This feature has been utilized for QRS detection. Rest all the statistical markers for HRV are then computed with reference to the detected QRS. HRV analysis of 10 real subjects has been carried out using the embedded system. Results show that the proposed low cost embedded system is suitable for real time HRV analysis.
{"title":"Development of an embedded system for real time Heart Rate Variability analysis","authors":"R. Sutar, A. Kothari, A. Keskar","doi":"10.1109/ISCIT.2013.6645866","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645866","url":null,"abstract":"Electrocardiogram (ECG) is the most preferably used noninvasive test for diagnosis of cardiac rhythm. Irregular rhythm of heart beats is measured in terms of Heart Rate Variability (HRV). Analysis of HRV plays an important role in automated diagnosis of cardiac status. This paper deals with development of an embedded system suitable for real time HRV analysis. A low cost embedded system for monitoring an ECG has been developed using operational amplifiers and a Microchip's microcontroller. Digitized ECG has been transmitted serially to computer for real time analysis of HRV. Nonlinear energy associated with QRS complex is highest amongst the ECG beat. This feature has been utilized for QRS detection. Rest all the statistical markers for HRV are then computed with reference to the detected QRS. HRV analysis of 10 real subjects has been carried out using the embedded system. Results show that the proposed low cost embedded system is suitable for real time HRV analysis.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122575686","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}
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