2008 International Symposium on Communications and Information Technologies最新文献_第8页

Automatic Parameter Setting for Differential Volume Rendering 自动参数设置差异体绘制

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700175

K. Khongsomboon, P. Indarack, K. Hamamoto, S. Kondo

{"title":"Automatic Parameter Setting for Differential Volume Rendering","authors":"K. Khongsomboon, P. Indarack, K. Hamamoto, S. Kondo","doi":"10.1109/ISCIT.2008.4700175","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700175","url":null,"abstract":"X-ray medical examination technique is indispensable and widely applied. Regarding computerized tomography techniques, several researchers have developed 3D reconstruction from X-ray images. Authors also have already proposed a 3D reconstruction technique from X-ray photograph to present bone structure. However, the technique uses many X-ray photographs. Therefore, there arises X-ray exposure problem. One of the solution is to use X-ray fluoroscopy instead of X-ray photograph. X-ray fluoroscopy uses weak intensity X-ray compared with conventional X-ray photograph. Although fluoroscopy can take movie around object and many view images can be taken, the contrast of image is quite low. To reconstruct 3D image from X-ray fluoroscopy, authors have already proposed a 3D reconstruction from X-ray fluoroscopy for clinical veterinary medicine using differential volume rendering. The volume rendering image can display some organs or tissues by user's manual parameter setting. However, this parameter setting is very difficult and complicated to find the optimal parameters for setting opacity. This paper proposes a method to generate the parameters automatically. The parameters are base differential value and maximum differential value. These parameters are set from first maximum point and second maximum point at differentiated value histogram information. In addition, a possibility can be shown where organs are separated by selection of peak points at the histogram. This paper shows the results of experimental investigation of small dog.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124418519","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

Transmitted Reference-Based Spectrum Sensing in IEEE 802.22 WRAN Networks IEEE 802.22 WRAN网络中基于传输参考的频谱感知

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700283

Shaoyi Xu, Yanlei Shang, Haiming Wang

引用次数: 0

Information Technology Education and Human Resources Development in Laos 老挝的信息技术教育和人力资源开发

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700259

S. Ikeda, K. Southisombath, T. Wakabayashi

引用次数: 0

Broadband Planar Antenna with an Elliptical Element and a Parasitic Element near Ground Conductor 带椭圆元件和近地导体寄生元件的宽带平面天线

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700266

K. Miyajima, H. Matsui, T. Wakabayashi

引用次数: 2

Dynamic Modeling and Control of a Zeta Converter Zeta变换器的动态建模与控制

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700242

E. Vuthchhay, C. Bunlaksananusorn, H. Hirata

引用次数: 34

Effect of fenestrated stents on the renal arteries: Investigation of hemodynamic changes in abdominal aortic aneurysms treated with fenestrated endovascular grafts 开窗支架对肾动脉的影响:开窗血管内移植治疗腹主动脉瘤血流动力学变化的研究

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700186

Zhonghua Sun, T. Chaichana, S. Tangjitkusolmun, S. Sangwatthana, Y. Allen, D. Hartley, M. Lawrence-Brown, M. Sangworasil

{"title":"Effect of fenestrated stents on the renal arteries: Investigation of hemodynamic changes in abdominal aortic aneurysms treated with fenestrated endovascular grafts","authors":"Zhonghua Sun, T. Chaichana, S. Tangjitkusolmun, S. Sangwatthana, Y. Allen, D. Hartley, M. Lawrence-Brown, M. Sangworasil","doi":"10.1109/ISCIT.2008.4700186","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700186","url":null,"abstract":"This article uses a novel method of combining 3D image visualization and computational fluid dynamics to investigate the potential effect of fenestrated stents on the renal arteries in terms of blood flow pattern, flow rate at different cardiac cycles, based on patients with abdominal aortic aneurysm treated with fenestrated stent grafts. 3D imaging appearance of the fenestrated stents inserted into the renal arteries is used to guide the simulation of the stent protrusion into the abdominal aorta model for analysis of hemodynamic changes. A circular stent protrusion with a length of between 5-7 mm inside the abdominal aorta is simulated in two aorta models, and computational fluid dynamics is performed to detect the change of flow pattern and flow rate at the renal arteries. Our results demonstrate change of the renal flow rate is minimal following implantation of fenestrated stents, indicating the safety of fenestrated stent graft repair of patients with aortic aneurysms.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133831936","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

Automatic Prediction System of Dengue Haemorrhagic-Fever Outbreak Risk by Using Entropy and Artificial Neural Network 基于熵和人工神经网络的登革出血热暴发风险自动预测系统

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700184

N. Rachata, P. Charoenkwan, T. Yooyativong, K. Chamnongthal, C. Lursinsap, K. Higuchi

{"title":"Automatic Prediction System of Dengue Haemorrhagic-Fever Outbreak Risk by Using Entropy and Artificial Neural Network","authors":"N. Rachata, P. Charoenkwan, T. Yooyativong, K. Chamnongthal, C. Lursinsap, K. Higuchi","doi":"10.1109/ISCIT.2008.4700184","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700184","url":null,"abstract":"Predicting Dengue Haemorrhagic Fever outbreak is obviously urgent in order to control and prevent a widespread of the fever in advance. However, the prediction of Dengue Haemorrhagic Fever outbreak needs the analysis from experts which is inconvenient and costly. An automatic prediction system should be developed. This paper proposes an automatic prediction system of Dengue Haemorrhagic-Fever outbreak risk by using entropy technique and artificial neural network. In this system, the information extraction is preprocessed prior to the prediction in order to reduce data redundancy and retain only those relevant data. First, the external factors such as temperature, relative humidity, and rainfall are considered during the information extraction. Then, a supervised neural network is deployed to predict the possible risk of Dengue Haemorrhagic Fever outbreak. To evaluate the performance of proposed system, the experiments based on the condition of weather data and Dengue Haemorrhagic Fever cases from January 1999 until December 2007 were conducted. Our prediction achieves 85.92% accuracy compared to the actual data.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134485434","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: 31

A Method of Data Gathering in Negative Feelings Information System 消极情绪信息系统中的数据收集方法

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700256

J. Punwilai, T. Noji, J. Puttikarukot, M. Ariño, Y. Kinoshita

引用次数: 1

A Unidirectional Antenna Using Circular Disc Monopole Excited Circular Ring above Cylindrical Reflector 一种基于圆盘单极激励环的圆柱形反射面单向天线

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700191

S. Vongsack, C. Phongcharoenpanich, S. Kosulvit, T. Wakabayashi

引用次数: 0

Participatory User Centered Design Techniques for a Web Information System for Stroke 参与式以用户为中心的卒中网络信息系统设计技术

2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700254

M. Nasir, N. H. Hassan, M. Nor

{"title":"Participatory User Centered Design Techniques for a Web Information System for Stroke","authors":"M. Nasir, N. H. Hassan, M. Nor","doi":"10.1109/ISCIT.2008.4700254","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700254","url":null,"abstract":"In a technology-oriented and information-intense world, one of the largest challenge is structuring, arranging and delivering the information in a coherent and usable manner via the World Wide Web. user centered design (UCD), in certain contexts, is the exact and restrictive interpretation of 'user' as hands-on user can be a hurdle to achieving development processes that are intensely use-centered, and products that better support end user in order to have better information systems delivery for stroke. The aim of this research is to insure that all the included information given through the Internet is what the stroke patients really need. This paper discusses several methodologies and techniques from user-centered design (UCD) chosen for eliciting the requirements. This research uses interviews, focus groups and card-sorting activities where these will be conduct among chosen user. This research will cover on participated three groups of users namely stroke caregivers, stroke rehab centers and stroke therapists. The paper presents a Web information system as a medium to deliver the information including a user-defined of two-level hierarchy of Web navigation structure.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134445112","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