检索结果-内蒙古大学图书馆

IEEE EMBS International Conference on information technology Applications in Biomedicine (ITAB)

作者： C.D. Katsis D.I. Fotiadis A. Likas I. Sarmas Unit of Medical Technology and Intelligent Information Systems Department of Computer Science University of Ioannina and Biomedical Research Institute FORTH Ioannina Greece University Hospital of Ioannina Ioannina Greece

A novel data driven method for needle EMG decomposition is presented. The method is capable of automatically detecting the number of MUAPs. Superimposed MUAPs are detected and decomposed automatically into their constituents. No a priori knowledge of the number of MUAPs is required. The method is evaluated using a dataset consisting of 8 normal, 8 suffering from myopathy and 7 suffering from neuropathy subjects. The success rate on finding the correct number of clusters was 95%, 89% and 80%, respectively.

关键词： Electromyography Electrodes Muscles Signal processing Needles Signal resolution Neuromuscular Data acquisition Band pass filters Low pass filters

来源：评论

学校读者我要写书评

暂无评论

PLACEBO: a computational platform for health professionals and bioengineers

PLACEBO: a computational platform for health professionals a...

引用

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： F. Vartziotis D.I. Fotiadis I.E. Lagaris A. Likas Unit of Medical Technology and Intelligent Information Systems Department of Computer Science University of Ioannina (UoI) Ioannina Greece Department of Computer Science University of Ioannina and Biomedical Research Institute FORTH Ioannina Greece

In this article, we present PLACEBO, an innovative software and hardware platform, which intends to solve biomedical problems formulated in terms of partial differential equations. It can be networked with various imaging devices, such as MRI and CT and can be used for pre-operative surgical planning. It employs an effective computational environment for solving partial differential equations, which is based on neural networks. This approach, in order to exploit the parallel character of the neural networks, is implemented partly in specialized hardware hosted on a commercial PC. There are two operation levels. A user-level, targeting health professionals that need to solve a set of predefined biomedical problems, and a bioengineering level, which allows the construction of problem sets. Since ease of use is of paramount importance for these kind of platforms, a friendly graphical user-interface is being developed.

关键词： Biomedical computing Partial differential equations Neural networks Biomedical imaging Magnetic resonance imaging Computed tomography Surgery Computer networks Neural network hardware Biomedical engineering

来源：评论

学校读者我要写书评

暂无评论

A multicriteria decision based approach for ischaemia detection in long duration ECGs

A multicriteria decision based approach for ischaemia detect...

引用

IEEE EMBS International Conference on information technology Applications in Biomedicine (ITAB)

作者： Y. Goletsis C. Papaloukas D.I. Fotiadis A. Likas L.K. Michalis Unit of Medical Technology and Intelligent Information Systems Department of Computer Science University of Ioannina and Biomedical Research Institute FORTH Ioannina Greece Department of Cardiology Medical School University of Ioannina (UoI) Ioannina Greece

A new method based on a multicriteria classification algorithm, which is applied on data extracted from the electrocardiographic signal and the patient's history, is described for the detection of ischaemic episodes in long duration electrocardiographic recordings. The classification procedure is embedded into a four-stage system of automated ischaemia diagnosis. Using a task-specific cardiac beat database the multicriteria method was properly adjusted to classify each presented cardiac beat as ischaemic or normal. The method was tested using the cardiac beat database and we achieved good results, equal or even better than other reported methods, demonstrating the efficiency of the proposed methodology.

关键词： Electrocardiography Medical diagnostic imaging Databases Heart Interference Contamination Polynomials Filters intelligent systems information systems

来源：评论

学校读者我要写书评

暂无评论

Grace: An autonomous robot for the AAAI Robot Challenge

Grace: An autonomous robot for the AAAI Robot Challenge

引用

作者： Simmons, Reid Goldberg, Dani Goode, Adam Montemerlo, Michael Roy, Nicholas Sellner, Brennan Urmson, Chris Schultz, Alan Abramson, Myriam Adams, William Atrash, Amin Bugajska, Magda Coblenz, Michael MacMahon, Matt Perzanowski, Dennis Horswill, Ian Zubek, Robert Kortenkamp, David Milam, Tod Wolfe, Bryn Maxwell, Bruce Robotics and Computer Science Carnegie Mellon University Pittsburgh PA United States Robotics Institute Carnegie Mellon University Pittsburgh PA United States ACT-R Research Group Human-Computer Interaction Institute Carnegie Mellon University Pittsburgh PA United States Carnegie Mellon University Pittsburgh PA United States Carnegie Mellon Robotics Institute Carnegie Mellon University Pittsburgh PA United States Intelligent Systems Section Navy Ctr. Appl. Res. Artif. Intell. Naval Research Laboratory Washington DC United States George Mason University Fairfax VA United States Naval Research Laboratory Washington DC United States Georgia Institute of Technology Atlanta GA United States School of Computer Science Carnegie Mellon University Pittsburgh PA United States Stanford University Austrian Research Institute for AI NASA Johnson Space Center Stanford CA United States Intelligent Multimodal Multimedia G. Navy Ctr. Appl. Res. Artif. Intell. Naval Research Laboratory Washington DC United States

The article discusses an autonomous robot for the AAAI Robot Challenge. In an attempt to solve as much of the AAAI Robot Challenge as possible, five research institutions representing academia, industry and government integrated their research into a single robot named Grace. The article describes the first-year effort by the Grace team, including not only the various techniques each participant brought to Grace but also the difficult integration effort itself.

关键词： Artificial intelligence

来源：评论

学校读者我要写书评

暂无评论

Simulation of cardiovascular diseases using electronic circuits

Simulation of cardiovascular diseases using electronic circu...

引用

Computers in Cardiology (CinC)

作者： D.G. Tsalikakis D.I. Fotiadis D. Sideris Unit of Medical Technology and Intelligent Information Systems Department of Computer Science University of Ioannina (UoI) Ioannina Greece Biomedical Research Institute-FORTH Ioannina Greece Division of Cardiology Medical School University of Ioannina (UoI) Ioannina Greece

We have developed an electronic circuit to simulate the behavior of the cardiovascular system under normal or pathological conditions. The current, voltage, charge, resistance and capacitance of the circuit correspond to flow, blood pressure, volume, resistance and capacitance of the simulated cardiovascular system, respectively. We have implemented a circuit with two ventricles separated from the systemic and the pulmonary circulation to simulate normal conditions. Vital parameters of the cardiovascular system such as aortic pressure, cardiac output, end-diastolic or systolic volume of right or left ventricle, left and right ventricular pressure, blood volume, pulmonary artery pressure and stroke volume can be obtained. Qualitative and quantitative agreement with the Starling preparation has been achieved for a 120 sec simulation time. We have also simulated pathological situations such as left ventricular failure, mitral stenosis, aortic valvular stenosis, hypertension, pulmonic valve stenosis adjusting the parameters of the circuit components.

关键词： Circuit simulation Cardiovascular diseases Electronic circuits Cardiovascular system Pathology Capacitance Voltage Blood pressure Arteries Hypertension

来源：评论

学校读者我要写书评

暂无评论

A wearable intelligent system for monitoring health condition and rehabilitation of running athletes

A wearable intelligent system for monitoring health conditio...

引用

IEEE EMBS International Conference on information technology Applications in Biomedicine (ITAB)

作者： C. Glaros D.I. Fotiadis A. Likas A. Stafylopatis Dept. of Materials Science University of Ioannina Ioannina Greece Unit of Medical Technology and Intelligent Information Systems University of Ioannina and Biomedical Research Institute-FORTH Ioannina Greece Dept. of Electrical and Computer Engineering National Technical University of Athens Athens Greece

A wearable intelligent platform for the monitoring of the health condition and rehabilitation of athletes is presented. The system provides doctors and trainers with real-time monitoring, alerting and medical decision support. It aims to help them optimize treatment and training procedures during rehabilitation, to prevent injury relapses and to ensure a prompt return to peak athletic condition. The system's design requirements are laid out along with its functional description. It is composed of three main subsystems: the athlete subsystem, the rehabilitation station and the portal. The athlete subsystem includes all the monitoring sensors worn by the athlete during training, along with a signal collector and a processing-transceiver unit for preliminary evaluation and for exchanging information with the rehabilitation station. The rehabilitation station is the main control, access and communication point of the system carrying most of the processing. The measurements derived from the received signals are fed into an intelligent module, which provides with the monitoring, alerting and decision support mechanisms. A virtual reality interface is used by the athlete to communicate with the system. The portal is a long-term data storage facility collecting selected data for research purposes.

关键词： Biomedical monitoring intelligent systems Condition monitoring Portals Real time systems Injuries Wearable sensors Signal processing Communication system control Control systems

来源：评论

学校读者我要写书评

暂无评论

Automatic face region tracking for highly accurate face recognition in unconstrained environments

Automatic face region tracking for highly accurate face reco...

引用

IEEE Conference on Advanced Video and Signal Based Surveillance (AVSS)

作者： Y.-O. Kim J. Paik Jingu Heo A. Koschan B. Abidi M. Abidi Korea Electronics and Technology Institute Puchon Gyeonggi South Korea Image Processing Laboratory Department of Image Engineering Graduate School of Advanced Imaging Science Multimedia and Film Chung-Ang University Seoul South Korea Imaging Robotics and Intelligent Systems Laboratory Department of Electrical and Computer Engineering University of Tennessee Knoxville USA

We present a combined real-time face region tracking and highly accurate face recognition technique for an intelligent surveillance system. High-resolution face images are very important to achieving accurate identification of a human face. Conventional surveillance or security systems, however, usually provide poor image quality because they use only fixed cameras to record scenes passively. We have implemented a real-time surveillance system that tracks a moving face using four pan-tilt-zoom (PTZ) cameras. While tracking, the region-of-interest (ROI) can be obtained by using a low-pass filter and background subtraction with the PTZ. Color information in the ROI is updated to extract features for optimal tracking and zooming. FaceIt/sup /spl reg//, which is one of the most popular face recognition software packages, is evaluated and then used to recognize the faces from the video signal. Experimentation with real human faces showed highly acceptable results in the sense of both accuracy and computational efficiency.

关键词： Face recognition Surveillance Real time systems Humans Cameras intelligent systems Security Image quality Layout Low pass filters

来源：评论

学校读者我要写书评

暂无评论

Automated system for the analysis of heart monophasic action potentials

Automated system for the analysis of heart monophasic action...

引用

Computers in Cardiology (CinC)

作者： D.G. Tsalikakis D.I. Fotiadis T. Koletis L.K. Michalis Unit of Medical Technology and Intelligent Information Systems University of Ioannina GR Ioannina Greece Bi medical Research Institute-FORTH GR Ioannina Greece Biomedical Research Institute-FORTH Ioannina Greece Michaelidion Cardiology Center GR Ioannina Greece Division of Cardiology Medical School University of Ioannina (UoI) Ioannina Greece Division of Cardiology University of Ioannina GR Ioannina Greece

In this paper we present an automated system, which can be used in real time for the analysis of heart monophasic action potentials (MAPs) in order to analyze the behaviour of the myocardium under pathological or normal conditions. The system can be described as a three-stage procedure. In the first stage MAPs are acquired using epicardiac electrodes or MAP Franz catheters and the noise is removed using a combination of notch and band pass filters. In the second stage several features of the signal are extracted. In the third stage statistical analysis is performed. The obtained results can be used for the assessment of the electrophysiological status of the atrial muscle, ventricular muscle, and the evaluation of the effects of antiarrhythmic drugs. The validation of the system indicated that it can provide with reliable information on the myocardium condition.

关键词： Heart Myocardium Muscles Real time systems Pathology Electrodes Catheters Band pass filters Data mining Statistical analysis

来源：评论

学校读者我要写书评

暂无评论

Childcares: An intelligent collaborative environment for out-of-hospital child healthcare

引用

Health Informatics Journal 2002年第4期8卷 181-190页

作者： Ganiatsas, G. Starida, K. Fotiadis, D.I. Likas, A. Unit of Medical Technology Intelligent Information Systems Deptartment of Computer Science University of Ioannina 45110 Ioannina Greece Department of Computer Science University of Ioannina Biomedical Research Institute-FORTH 45110 Ioannina Greece

This paper provides an overview of the concept, the functionalities and the architecture of the CHILDCARE platform. Our system aims at supporting the out-of-hospital continuous healthcare management of children and promoting its quality. All the involved actors in this domain are integrated across the system. Our focus is the utilization of the latest technology accomplishments towards the incorporation of teleconference sessions, collaborative spaces and intelligent features over a common secure platform. This combination allows: •remote communication between health experts and the child's family• setup, execution and monitoring of health management plans• efficient collaboration between the responsible doctor and healthcare professionals• access from multiple devices from any place, at any time• role-based management of the involved actors with respect to their actual involvement in the healthcare management, ensuring confidentiality and security at all levels. The main components of CHILDCARE include • a mechanism for interfacing legacy systems• the virtual workspace for delivering communication functionalities• the intelligent features for accessing and utilizing information from the personal health records and the system repositories so as to implement added-value services• interfacing modules for ensuring appropriate interaction with respect to the role and interests of each user group. © 2002, Sage Publications. All rights reserved.

关键词： collaborative spaces homecare intelligent systems Telemedicine

来源：评论

学校读者我要写书评

暂无评论

Fusing and filtering arrogant classifiers

Fusing and filtering arrogant classifiers

引用

5th International Conference on information Fusion, FUSION 2002

作者： Magnus, Amy L. Oxley., Mark E. Intelligent Information Systems Air Force Research Laboratory Rome NY United States Department of Mathematics and Statistics Air Force Institute of Technology Wright-Patterson AFB OH United States

ISBN: (纸本)0972184414

Given a finite collection of classifiers trained on n-class data, one wishes to fuse the classifiers to form a new classifier with improved performance. Typically, the fusion is performed on the output level using logical ANDs and ORs. Sometimes classifiers are arrogant and will classify a feature vector without any prior experience (data) to justify their decision. The proposed fusion is based on the arrogance of the classifier and the location of the feature vector in respect to training data. Given a feature vector x, if any one of the classifiers is an expert on x then that classifier should dominate the fusion. If the classifiers are confused at x then the fusion rule should be defined in such a way to reflect this confusion. If the classifier is arrogant, then its results should not be considered and, thus, filtered out from the fusion process. We give this fusion rule based upon the metrics of veracity and experience. © 2002 Int. Soc. of information Fusion.

关键词： Fuzzy logic

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：