The 5th 2012 Biomedical Engineering International Conference最新文献

Examination of temporal characteristic of sleep EEG subbands based on the local min-max 基于局部最小-最大的睡眠脑电子带时间特征研究

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465463

S. Janjarasjitt

引用次数: 2

Directional eye movement detection system for virtual keyboard controller 虚拟键盘控制器定向眼动检测系统

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465432

W. Tangsuksant, C. Aekmunkhongpaisal, P. Cambua, T. Charoenpong, Theerasak Chanwimalueang

{"title":"Directional eye movement detection system for virtual keyboard controller","authors":"W. Tangsuksant, C. Aekmunkhongpaisal, P. Cambua, T. Charoenpong, Theerasak Chanwimalueang","doi":"10.1109/BMEICON.2012.6465432","DOIUrl":"https://doi.org/10.1109/BMEICON.2012.6465432","url":null,"abstract":"Several researches concerning electrooculography interface for Human Computer Interface (HCI) have been developed in recent years. For applications of disabled person such as lock-in, and Motor Neuron disease, a simple and effective technology for communication is necessary. Eye blink is defined as a selection command in existing research. Problem of current research is occurred when user blinks his eye involuntarily. To resolve this problem, in this paper, we develop a new electrooculography based system for typing words via virtual keyboard by using voltage threshold algorithm. EOG signal with different direction of eye movement in horizontal and vertical directions are detected. EOG signal is measured by two channels with six electrodes. Measurement circuit consists of three major processes: instrument amplifier, filter and signal conditioning amplifier processes. These circuits filter noise out, pass frequencies in ranges of EOG signal and then amplify the signal. The voltage threshold algorithm is then used to classify the EOG signal. Selection command is defined by closing eye in a short period of use to avoid eye blink involuntary. To test the performance of method, typing rate and accuracy are measured. Typing rate on virtual keyboard 25.94 seconds/letter and its accuracy is 95.2%. The results show the feasibility of proposed method.","PeriodicalId":409705,"journal":{"name":"The 5th 2012 Biomedical Engineering International Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121098756","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: 29

Optimization of visual presentation of MRI image for accurate detection of tumor in human brain using virtual instrument 利用虚拟仪器优化MRI图像视觉表现，实现对人脑肿瘤的准确检测

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465428

A. Lakshmi, P. Samata

引用次数: 12

A Mammography Database and Viewer System 乳房x线摄影数据库和查看器系统

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465502

P. Suapang, M. Thongyoun, R. Boontawan, S. Chivaprecha

{"title":"A Mammography Database and Viewer System","authors":"P. Suapang, M. Thongyoun, R. Boontawan, S. Chivaprecha","doi":"10.1109/BMEICON.2012.6465502","DOIUrl":"https://doi.org/10.1109/BMEICON.2012.6465502","url":null,"abstract":"A Mammography Database and Viewer System have collected and stored mammography images of Thai women, treated at the Radiology Department of Hospital in Rangsit, Pathumtani, Thailand, constructed a database using the digitized mammography images, and developed an image viewing system to display these digital mammograms. The images are stored with the high resolution Matrox Morphis (MOR/2VD/84*) frame grabber board. The digital mammography database is powered by MySQL and PHP. It also has a web-based search engine (with secure access) so that the information can be made accessible to all medical team members. The image viewing software, DICOM Viewer, is coded in Borland C++ Builder and is intended to help medical professionals view and retrieve large data sets in near real time. This have already digitized 200 cases (one case per patient, twenty to forty images per case). The system also have developed a MySQL-based image database, and a PHP-based web-search engine to retrieve cases that have masses (benign or malignant) or calcifications (benign or malignant). This database has been evaluated by medical professionals and the experimental results obtained so far are very promising (high image qualities, fast access time). The system are currently developing an image content-based retrieval function for the database system in order to provide improved search capability for the medical professionals.","PeriodicalId":409705,"journal":{"name":"The 5th 2012 Biomedical Engineering International Conference","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122525347","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

Universal nonuniform sampling of ECG signals: Opportunities and obstacles 心电信号的通用非均匀采样:机遇与障碍

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465510

D. S. S. Reddy, R. R. Tamboli, S. Jana

{"title":"Universal nonuniform sampling of ECG signals: Opportunities and obstacles","authors":"D. S. S. Reddy, R. R. Tamboli, S. Jana","doi":"10.1109/BMEICON.2012.6465510","DOIUrl":"https://doi.org/10.1109/BMEICON.2012.6465510","url":null,"abstract":"Sampling of ECG signals has been studied for several decades. However, nonuniform sampling at low average rate has received much less attention. While uniform sampling rate needs to be at least twice the bandwidth of a signal (Nyquist rate), in theory, nonuniform sampling at sub-Nyquist rate should be adequate for faithful reconstruction if the signal is sufficiently sparse. Noting the known sparsity ECG signals, we attempt to demonstrate sub-Nyquist sampling of such signals. However, alongside this opportunity, reconstruction from nonuniform samples also poses a particular challenge. While uniform sampling admits universal (signal-independent) reconstruction (via sinc interpolation), reconstruction from nonuniform samples is generally data-dependent. In this paper, we make use of compressive sampling theory to demonstrate that nonuniform sampling does provide universal performance guarantee. In our experiments, we use ANSI/AAMI standard test ECG signals, and tune the orthogonal mathing pursuit algorithm for those to obtain superior performance. Our results potentially facilitates development of low-power ECG recording devices with potential application in remote locations without grid power.","PeriodicalId":409705,"journal":{"name":"The 5th 2012 Biomedical Engineering International Conference","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116752401","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

Effect of experimental factors on the properties of PEDOT-NaPSS galvanostatically deposited from an aqueous micellar media for invasive electrodes 实验因素对水胶束介质中PEDOT-NaPSS静电沉积性能的影响

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465500

R. Starbird, W. Bauhofer, Mario A. Meza-Cuevas, W. Krautschneider

引用次数: 12

Performance evaluation of electroencephalograph with negative capacitance converter 负电容变换器脑电图仪的性能评价

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465475

T. Kimura, H. Watanabe, M. Adachi, S. Kuriki, A. Ueno

引用次数: 3

Effect of musical tones in auditory perception analysis using nonlinear model 用非线性模型分析音调对听觉感知的影响

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465507

P. Pongpanitanont, W. Sittiprapaporn, W. Charoensuk

引用次数: 0

Tablet counting machine base on image processing 基于图像处理的片剂计数机

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465508

C. Phromlikhit, Fusak Cheevasuvit

引用次数: 4

Myocardial iron measurement in thalassemia using cardiac magnetic resonance image processing software 应用心脏磁共振图像处理软件测定地中海贫血患者心肌铁含量

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI: 10.1109/BMEICON.2012.6465497

E. Boonchieng, K. Duangchaemkarn

{"title":"Myocardial iron measurement in thalassemia using cardiac magnetic resonance image processing software","authors":"E. Boonchieng, K. Duangchaemkarn","doi":"10.1109/BMEICON.2012.6465497","DOIUrl":"https://doi.org/10.1109/BMEICON.2012.6465497","url":null,"abstract":"To assess the iron overload in human tissue especially in the heart of transfusion-dependent thalassemia patients using cardiac magnetic resonance imaging (CMRI) technique has been widely used to evaluate cardiac iron deposition because of its non-invasive procedure. The iron measure from this technique is represent as T2* (T2 Star) value. Cardiac T2* software was developed. The software was measuring T2* value from DICOM image with two algorithm processing components; regions of interest (ROI) identification, and T2* optimization. The software preliminary testing was performed using test cases DICOM image, three times repeating, from both healthy volunteer and thalassemia patient with cardiac iron overload, then compared T2* value with the reference tool (CMRtools with ThalassemiaTools plug-in). Mean T2* value analyzed from healthy volunteer CMRI was 22.36 (±0.94) and 37.10 (±1.62), respectively. While the mean T2* value analyzed from thalassemia patients CMRI was 15.52 (±0.85) and 18.67 (±1.15) in reference software and CMUT2Star software respectively. In conclusion, CMUT2Star produced a higher T2* value than the reference tool. Software has no any errors and no conflict with testing platform. The algorithm in T2* optimization component need to be adjusted in order to produce the accuracy and robust T2* value.","PeriodicalId":409705,"journal":{"name":"The 5th 2012 Biomedical Engineering International Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124098128","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