• 스마트미디어저널
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• 제11권2호
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• pp.25-30
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• 2022

최근 스마트폰 또는 사진기, 화상캠 등의 기기 성능이 발달하면서 영상이나 사진에서 사람의 생체정보를 얻는 일이 가능하게 되었다. 실제 독일의 한 해커단체는 고화질의 사진으로부터 사람의 홍채 정보를 획득하여 스마트폰의 홍채 스캐너를 해킹하는 모습을 공개하기도 하였다. 이처럼 고도화된 기기로 화질 좋은 영상이나 사진을 얻을 수 있게 되면서 그에 맞는 보안시스템의 필요성도 대두되고 있다. 따라서 본 논문에서는 openCV의 Haar Cascades와 Blur 모델을 활용하여 영상이나 사진에서 사람의 홍채 정보를 자동으로 마스킹하는 방법을 제안한다. 위 방법은 사람의 얼굴은 인식한 뒤 얼굴 범위 안에서 눈을 검출하여 자동으로 홍채 정보를 마스킹하는 기술이다. 이 기술이 스마트폰, zoom 등의 기기 및 애플리케이션에서 사용된다면 사용자에게 더 보안성이 뛰어난 서비스를 제공할 수 있을 것으로 기대된다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 춘계학술대회
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• pp.329-332
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• 2022

본 연구는 기존 이러닝 컨텐츠 및 비대면 수업방식에 대한 문제점을 파악하고 학생들의 집중도 향상 및 수업 성취도 및 교육 효과를 높이고 웹 서버를 활용해 인공지능 수업 시스템을 설계를 제안 하고자 한다. OpenCV를 이용한 얼굴과 눈동자 추적의 기능을 사용하여 출석 및 집중도 파악하고 수업 중간에 교수자가 질문하는 문제에 음성 또는 메시지로 피드백을 유도함으로써 학습자가 온라인 수업으로 인한 지루함을 해소하고 주자별 테스트를 통해 기준 점수에 도달하지 못했을 경우 틀린 문제에 대한 교육자료 및 영상을 제공하여 학업 격차를 해소하고 학업에 대한 성취도를 향상을 높일 수 있는 인공지능 교육 프로그램 시스템 설계를 제안한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 추계학술대회
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• pp.280-283
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• 2022

본 연구는 기존 이러닝 컨텐츠 및 비대면 수업방식에 대한 문제점을 파악하고 학생들의 집중도 향상 및 수업 성취도 및 교육 효과를 높이고 웹 서버를 활용해 인공지능 수업 시스템을 설계를 제안 하고자 한다. OpenCV를 이용한 얼굴과 눈동자 추적의 기능을 사용하여 출석 및 집중도 파악하고 수업 중간에 교수자가 질문하는 문제에 음성 또는 메시지로 피드백을 유도함으로써 학습자가 온라인 수업으로 인한 지루함을 해소하고 주자별 테스트를 통해 기준 점수에 도달하지 못했을 경우 틀린 문제에 대한 교육 자료 및 영상을 제공하여 학업 격차를 해소하고 학업에 대한 성취도를 향상을 높일 수 있는 인공지능 교육 프로그램 시스템 설계를 구축하였다.

• Toxicological Research
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• 제16권2호
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• pp.117-124
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• 2000

The objective of this experiment is to investigate neurobehavioral and developmental effects of fumonisin B1 (FB1) after prenatal FB1 administration in rats. FB1 (0.8 or 1.6 mg/kg) was orally exposed to pregnant rats during gestational days 13 to 20, whereas the vehicle alone was administered to control group. Maternal and offspring body weights, physical landmarks of incisor eruption, eye opening, testes descending and vaginal opening, open field activity, running wheel activity, and complex maze performance were included as endpoints for developmental and neurobehavioral measurement. Maternal body weights were not signfficantly altered after FB1 exposure. Percentage of maternal weight gain difference between control and 1.6 mg/kg FBI groups was about 4%. Pre- and post-weanling weight of offsprings after prenatal exposure to FB1 was not signfficantly changed, suggesting that FB1 at 0.8 or 1.6 kg/kg doses may not cross the placenta. Significant gender difference in running wheel activity on postnatal days 57 to 63 and complex maze performance on postnatal days 75 to 78 was observed.

• 대한물리의학회지
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• 제8권3호
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• pp.387-395
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• 2013

PURPOSE: The purpose of the present study was to investigate the effect of the training using Pedalo equipment on balance function in post-stroke patients. METHODS: The present study was case-series. Ten post-stroke patients participated in the study. Participants performed the training using Pedalo equipment. The training using four Pedalo equipment lasted 30 minutes, 3 times a week for 6 weeks. Force platform, Berg Balance Scale(BBS), and Timed Up and Go(TUG) test were used to assess balance ability before and after training. RESULTS: After training using Pedalo equipment, there were significantly improved on path length and sway velocity of post-stroke patients in the both of eye open and - close conditions comparing with baseline. Also, on the BBS and TUG, there were significant improvements after training. CONCLUSION: The results of this study showed that the training using Pedalo equipment may be effective on improving the balance ability in the post-stroke patients. Through this study, we were able to confirm the potential of training using Pedalo equipment as an intervention in the rehabilitation of post-stroke patients.

• 한국정밀공학회지
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• 제21권12호
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• pp.92-99
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• 2004

The formation degree of sustain (ITO pattern) decides quality of PDP (Plasma Display Panel). For this reason, it makes efforts in searching defects more than 30 un as 100%. Now, the existing inspection is dependent upon naked eye or microscope in off-line PDP manufacturing process. In this study developed prototype inspection system of PDP 170 glass is based on line-scan mechanism. Developed system creates information that detects and sorts kinds of defect automatically. Designed inspection technology adopts multi-vision method by slip-beam formation for the minimum of inspection time and detection algorithm is embodied in detection ability of developed system. Designed algorithm had to make good use of kernel matrix that draws up an approach to geometry. A characteristic of defects, as pin hole, substance, protrusion, are extracted from blob analysis method. Defects, as open, short, spots and et al, are distinguished by line type inspection algorithm. In experiment, we could have ensured ability of inspection that can be detected with reliability of up to 95% in about 60 seconds.

• 한국안광학회지
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• 제12권3호
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• pp.65-70
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• 2007

본 연구는 전국 2년제 7개 대학 안경광학과의 교육목표 서술 내용과 개설된 교육과정의 교과목을 교양, 전공 필수, 전공 전공 선택 등으로 분류하여 조사 분석하였다. 교육목표는 7개 대학 모두 2년제 대학 교육 목적에 맞는 전문 직업인 양성이었으며, 목표 서술 내용은 대학 교육을 통해 달성 가능한 내용으로 조사되었다. 교육과정은 7개 대학 모두 안경사 국가 면허 시험 과목으로 개설되어 있으나, 검안학 교과목의 굴절검사, 안기능검사와 교양교과목의 직업의식, 조직 내 리더십, 마케팅 관련 교과목의 편성이 더 요구되고, 임상 현장실습 교육은 전문직업인이 되기 위한 경험으로 모든 대학은 교과목으로 개설할 필요성이 있다.

• 대한간호학회지
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• 제28권3호
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• pp.760-772
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• 1998

The purpose of this study was to explore the concept of quality of life for bone marrow transplant (BMT) survivors and to gain understanding of nursing interventions that may improve QOL in this population. The data was gathered from 32 BMT survivors using seven open-ended questions. The items were based on previous research of Ferrell et al., (1992). Content analysis was performed on written responses to seven questions regarding BMT and QOL. The results were as follows : 1. The meaning of QOL for BMT survivors were "being healt", "being able to take a role", "having relationships", "self-accomplishment", "peace of mind", "spiritual well-being", "economic stability" and "being alive". 2. The impact of BMT on physical well-being were "skin impairment", "digestive problems", "infections ", "fatigue/weakness", "arthralgia", "eye dryness". "weight gain", "amenorrhea" and "hand tremor". 3. The impact of BMT on psychological well-being were "fear of recurrence", "sence of peace" and "hope". 4. The impact of BMT on socioeconomic status were "financial burden", "limitation of social activities" and "sence of withdrawal". 5. The impact of BMT on spiritual well-being were "dependency on Supreme Being", "spiritual arousal " and "spiritual maturity". The findings of the study will be useful in constructing a instrument to measure QOL in BMT and in understanding the conceptual basis of QOL for the BMT population.ency on Supreme Being", "spiritual arousal " and "spiritual maturity". The findings of the study will be useful in constructing a instrument to measure QOL in BMT and in understanding the conceptual basis of QOL for the BMT population.L for the BMT population.

• 건축역사연구
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• 제10권2호
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• pp.73-84
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• 2001

The main purpose of this paper is to show that the new paradigm of a period can be constructed by the reinterpretation of the historical precedents or the dialectical mediation between the old and new. We can tell this process the creative dialogue between the past and present. The continuity and rupture, the renovation and succession of the tradition can be understand by this interpretive insight that opens the new horizon in architecture. In oder to prove this preconception this paper analyses the ideas and design principles of Le Corbusier. By showing how his main ideas and principles are formulated we can understand his unique position as a modernist and characteristics of his architecture. It is also the another purpose of this paper. This paper first looks into various aspects of his architecture and his personal background, then Investigates his unique approach to historical precedents. By the imaginative eye and comparison with inspiration he connected contemporary situation to the tradition and was able to deduce a new paradigm in architecture. His way of making relationship with the past was a priori, dialectical, and fundamentalistic. He always searched for universal norm, eternal rules, and timeless principles which are also modern and new. This both side shows well his characteristics and his architecture. Eventually he could invent a Modern language of architecture by the several ways of dialogue between the modem and the classical, new technology and old convention. We can say that his way of dialogue is a kind of reinterpretation of the historical precedents which enables open the future of architecture.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2010년 춘계학술대회논문집
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• pp.347-351
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• 2010

In this paper, our effort to apply 3-D Virtual Reality system for stereoscopic visualization of flow data is briefly described. This study is an extension of our previous and on-going research efforts to develop DATA(Data Analysis and Visualization Application) program, which is a data visualization program developed by using Qt as GUI development environment and OpenGL as graphic library. The program is developed upon the framework of object-oriented programming and it was originally developed by using Qt 3.3.3 environment. In this research the program is converted into a Qt 4.3.3-compatible version, and this new version is developed on Visual Studio 2005. And to achieve a stereoscopic viewing capability, two graphic windows are used to render its own viewing image for the lift and right eye respectively. These two windows are merged into one image using 3D monitor and the viewers can see the data visualization results with stereoscopic depth effects by using polarizing glasses. In this paper three dimensional data visualization with stereoscopic technique combined with 3D Monitor is demonstrated, and the current achievement would be a good start-up for further development of low-cost high-quality stereoscopic data visualization system.