• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 춘계학술대회
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• pp.171-175
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• 1997

We have developed a remote diagnosis system using the LAN and MODEM which enables a routine check for a patient remotely. We used $LabVIEW^{TM}$ as the programing development tool and DAQ (Data Aquisition) board from National Instrument for data aquisition. The LAN card and MODEM are used for the transmission of patient's data. A patient data are aquired by DAQ board and signal processing is done by $LabVIEW^{TM}$, which is a graphical prgamming language. Two methods for the data of transmission. One is the Client-Server model using TCP/IP (Transmission Control Protocol / Internet Address) in the LAN (Local Area Network) Another is using MODEM to transmit the measured data from a patient. In this case, the data transmission is accomplished by the FTP (File Transfer Protocol).

• 대한의용생체공학회:의공학회지
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• 제12권4호
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• pp.277-284
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• 1991

This study describes the ambulatory ECG monitoring system for the remote autom atic diagnosis. System: tlardware is based on one chip microcomputer(80c31) and its peripherals which consists of A/D, EPROM, RAM, LCD display and two preamplifiers, Power circuits, control logic circuits. A/D converted data were differentiated and low pass filtered. The detection of QRS complex and R point were accomplished by software algorithm based on adaptive threshold computed on low pass fi:leered signal. Rhythm analysis is performed by RR interval and average RR interval. The performance of QRS detection algorithm is evaluated by using MIT/BIH data base. Using this system, the trends of the arrythmia during the long term could be saved and displayed.

• 대한의용생체공학회:의공학회지
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• 제15권2호
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• pp.175-182
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• 1994

The international standard for digital compression and coding of continuous-tone still image known as JPEG (Joint Photographic Experts Group) standard is investigated for medical image archiving and communication. The JPEG standard has widely been accepted in the areas of electronic image communication, computer graphics, and multimedia applications, however, due to the lossy character of the JPEG compression its application to the field of medical imaging has been limited. In this paper, the JPEG standard is investigated for medical image compression with a series of head sections of magnetic resonance (MR) images (256 and 4096 graylevels, $256 {\times}256$size). Two types of Huffman codes are employed, i. e., one is optimized to the image statistics to be encoded and the other is a predetermined code, and their coding efficiencies are examined. From experiments, compression ratios of higher than 15 were obtained for the MR images without noticeable distortion. Error signal in the reconstructed images by the JPEG standard appears close to random noise. Compared to existing full-frame bit-allocation technique used for radiological image compression, the JPEG standard achieves higher compression with less Gibb's artifact. Feature of the progressive image build-up of the JPEG progressive coding may be useful in remote diognosis when data is transmitted through slow public communication channel.

• 한국의학물리학회지:의학물리
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• 제6권2호
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• pp.93-101
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• 1995

본 연구에서는 개인용 컴퓨터에서 디지털 의료 영상을 관리하고 특정 영상을 외부의 다중 모니터에 출력할 수 있는 시스템을 설계하였다. 본 시스템의 주화면은 크기는 1280$\times$1024로 256$\times$256$\times$8bits의 영상을 8개까지 디스플레이 할 수 있으며 이 중 영상 처리가 필요한 영상을 마우스로 선택할 경우 512$\times$512$\times$8bits 혹은 1024$\times$1024$\times$8bits로 디스플레이 할 수 있게 하였고, 정밀한 관찰을 원하는 영상을 마우스로 선택할 경우 외부 모니터로 출력할 수 있게 하였다. 저장된 모든 영상을 효율적인 검색과 저장을 위해 B＋TREE 구조를 사용하여 데이터베이스를 구축하였다. 이상과 같은 모든 기능은 IBM-PC 386 이상 어느 기종에서도 작동하며, 사용자 편의 환경을 구현하기 위해서 모든 기능들은 마우스로 작동하게 하였다.

• 융합정보논문지
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• 제7권5호
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• pp.129-135
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• 2017

본 논문에서는 스마트폰과 생체센서를 사용하여 몸이 불편한 고령자의 상태를 수시로 모니터링하고 보호자 및 간병인으로 하여금 언제, 어디서나 최고의 의료서비스를 제공할 수 있도록 하는 시스템을 제안한다. 제안 시스템은 아두이노를 기반으로 병실에 설치된 다양한 생체센서들을 통해 고령자의 상태를 모니터링하고 고령자가 필요로 하는 생리적, 의료적 서비스를 제공할 수 있게 할뿐 아니라, 만일의 경우 보호자에게 알려 위급한 순간을 대처할 수 있게 하였다. 결론적으로, 본 논문은 아두이노와 안드로이드 애플리케이션(앱)을 이용하여 고령자가 사용하는 독서 등을 생체센서가 달린 홈 서버로 동작하게 하고, 간병인 및 보호자의 스마트폰을 원격관리 및 긴급호출 시스템으로 구성함으로써 향후 만성질환 고령자와 간병인 모두에게 의료서비스 만족도를 향상 시키는 중요한 방안을 제시한다.

• 정보학연구
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• 제8권2호
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• pp.93-101
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• 2005

We implemented an execution health officer system in this research. This system is the execution and can manage the health of the user systematically. A home network standard was not set up yet. The comparison observed geungedda suitable in a health officer system standard. We made efforts to realize the medical treatment network not to be activated yet. We implemented also a remote medical examination and treatment service a former chateu service alimentotherapy service. We will offer different service field and many the gear potent service.

• Journal of Computing Science and Engineering
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• 제7권4호
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• pp.272-284
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• 2013

In this paper, we propose a new framework for anomaly detection in medical wireless sensor networks, which are used for remote monitoring of patient vital signs. The proposed framework performs sequential data analysis on a mini gateway used as a base station to detect abnormal changes and to cope with unreliable measurements in collected data without prior knowledge of anomalous events or normal data patterns. The proposed approach is based on the Mahalanobis distance for spatial analysis, and a kernel density estimator for the identification of abnormal temporal patterns. Our main objective is to distinguish between faulty measurements and clinical emergencies in order to reduce false alarms triggered by faulty measurements or ill-behaved sensors. Our experimental results on both real and synthetic medical datasets show that the proposed approach can achieve good detection accuracy with a low false alarm rate (less than 5.5%).

• 한국멀티미디어학회:학술대회논문집
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• 한국멀티미디어학회 2001년도 춘계학술발표논문집
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• pp.373-377
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• 2001

The telemedicine & distance education system that this paper suggests has been designed on the CTE(Collaborative Telemedicine & distance Education) framework, which is an integrated multimedia environment. This is a CBM-based collaborative telemedicine & distance education type, different from the conventional doctor based general practice, and is an integrated multimedia telemedicine & distance education system capable of many application developments using information super highway. This paper presents the content regarding electronic medical examination chart and data treatment for efficient medical examination and prompt treatment by realizing mutual conversation type remote medical examination system among 3 parties(patient, doctor, pharmacist) on internet base. And, The implementation of this new teaming system should be designed with multimedia application development platform base which is interfaced with computer engineering, computer network technology, CSCW (Computer-Supported Cooperative Work) technology, and education engineering.

• 센서학회지
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• 제23권1호
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• pp.1-6
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• 2014

In many medical image devices, dc noise often prevents normal diagnosis. In wireless capsule endoscopy systems, multipath fading through indoor wireless links induces inter-symbol interference (ISI) and indoor electric devices generate impulsive noise in the received signal. Moreover, dc noise, ISI, and impulsive noise are also found in optical fiber communication that can be used in remote medical diagnosis. In this paper, a blind signal processing method based on the biased probability density functions of constant modulus error that is robust to those problems that can cause error propagation in decision feedback (DF) methods is presented. Based on this property of robustness to error propagation, a DF version of the method is proposed. In the simulation for the impulse response of optical fiber channels having slowly varying dc noise and impulsive noise, the proposed DF method yields a performance enhancement of approximately 10 dB in mean squared error over its linear counterpart.

• 보건행정학회지
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• 제6권1호
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• pp.85-109
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• 1996

Telemedicine can increase accessibility to advance medical technology at the university hospital for community residents living in a remote area. This paper focused on the economic evaluation of telemedicine to identify important factors influencing costs and benefits and to understand how these factors can be changed to improve economic performance of the telemedicine. When the telemedicine project currently operating in Korea was evaluated based on the traditional cost-benefit analysis, the results showed a heavy net loss wiht a B/C ration of 0.56. As several values were added to the analysis based on the Information Economics approach, B/C ratios steadly increased. When the saving of medical expenses from the early detection of diseases was taken into a consideration, the ration exceeded the break-even point. >From the sensitivity analysis, a number of patients and the cost for equipment and communication were found to be the key factors for influencing economic performance of telemedicine.