휴대폰 환경에서의 근적외선 얼굴 및 홍채 다중 인식 연구

한송이(Songyi Han),강병준(Byung Jun Kang),박강령(Kang Ryoung Park),박소영(So-Young Park) 대한전자공학회 2008 電子工學會論文誌-CI (Computer and Information) Vol.45 No.2

휴대폰에서 보안 필요성이 증가함에 따라 개인 인증을 위하여 홍채, 지문, 얼굴과 같은 단일 생체 정보를 이용한 많은 연구들이 진행되었으나 단일 생체 인식에서는 인식 정확도에 한계가 있었다. 따라서 본 논문에서는 휴대폰 환경에서 고 인식율을 위해 얼굴과 홍채를 결합하는 방법에 대해 제안한다. 본 논문에서는 근적외선 조명과 근적외선 통과 필터를 부착한 휴대폰의 메가 픽셀 카메라를 사용하여 근적외선 얼굴 및 홍채 영상을 동시에 취득한 후, SVM(Support Vector Machine)을 기반으로 스코어 레벨에서 결합하였다. 또한, 저 연산의 로가리듬(Logarithm) 알고리즘을 사용한 얼굴 데이터의 조명 변화에 대한 정규화와 극 좌표계 변환 및 홍채 코드의 비트 이동 매칭에 의한 홍채 영역의 이동, 회전, 확대 및 축소에 대한 정규화를 통해 SVM의 분류 복잡도와 얼굴, 홍채 데이터의 본인 변화도를 최소화함으로써 인식 정확도를 향상시켰으며, 저 연산의 휴대폰 환경에서 정수형 기반의 얼굴 및 홍채 인식 알고리즘을 사용하여 처리시간을 향상시켰다. 실험 결과, SVM을 사용한 인식의 정확성이 단일 생체(얼굴 또는 홍채), SUM, MAX, MIN 그리고 Weighted SUM을 사용하는 것보다 우수한 것을 알 수 있었다. As the security requirements of mobile phones have been increasing, there have been extensive researches using one biometric feature (e.g., an iris, a fingerprint, or a face image) for authentication. Due to the limitation of uni-modal biometrics, we propose a method that combines face and iris images in order to improve accuracy in mobile environments. This paper presents four advantages and contributions over previous research. First, in order to capture both face and iris image at fast speed and simultaneously, we use a built-in conventional mega pixel camera in mobile phone, which is revised to capture the NIR (Near-InfraRed) face and iris image. Second, in order to increase the authentication accuracy of face and iris, we propose a score level fusion method based on SVM (Support Vector Machine). Third, to reduce the classification complexities of SVM and intra-variation of face and iris data, we normalize the input face and iris data, respectively. For face, a NIR illuminator and NIR passing filter on camera are used to reduce the illumination variance caused by environmental visible lighting and the consequent saturated region in face by the NIR illuminator is normalized by low processing logarithmic algorithm considering mobile phone. For iris, image transform into polar coordinate and iris code shifting are used for obtaining robust identification accuracy irrespective of image capturing condition. Fourth, to increase the processing speed on mobile phone, we use integer based face and iris authentication algorithms. Experimental results were tested with face and iris images by mega-pixel camera of mobile phone. It showed that the authentication accuracy using SVM was better than those of uni-modal (face or iris), SUM, MAX, MIN and weighted SUM rules.

서울시 일부 보건소에 등록된 폐결핵 재발 환자의 특성에 관한 연구

한송이(Songyi Han),김순덕(Soonduck Kim),박종순(Jongsoon Park),지선미(Seonmi Ji),이제숙(Jesuk Lee) 한국역학회 2003 Epidemiology and Health Vol.25 No.2

Purpose: The purpose of this study is to survey general and clinical characteristics of a group of relapsed patients with pulmonary tuberculosis, who are registered at a public health center in order to provide basic data for treatment of a patient s relapse, follow-up examination after the flrst treatment and health education. Subject: Among 68 relapsed patients with pulmonary tuberculosis registered at two public health centers in Seoul from Jan, I, 2002 to Dec. 31, 2002, 50 patients were selected as research subjects because they were contactable by telephone and they agreed to be a research subject. Method: The research carried out the structured questionnaire survey by telephone and surveyed research subjects' general and clinical characteristics, diseases except tuberculosis, drinking and smoking habit and knowledge about pulmonary tuberculosis treatment. Furthermore, the results of x-ray, whether a cavity existed or not, bacteriologic test, culture examination and drug resistance examination were examined and interval to relapse and history of dose attitude were surveyed. Results: Among relapsed tuberculosis patients, male patients were 60% and they were more than women(40%). Patients over 60 were 42% most. ]n their occupation, 30% of them were unemployed and 50% of patients surveyed had monthly income below one million won. According to the findings in radiographic extent, most 50% of them were minimal, 44% were moderately advanced and 2% were far advanced. Patients who had cavity were 30%. According to the result in bacteriologic test, 54% showed positive smear pulmonary tuberculosis and 50.0% positive culture. According to the result in drug resistance, 24% showed drug resistance against one drug and 76% showed sensitive response. 46% had experienced medication side effects. According to interval to a relapse, 32% were relapsed less than 2 years, 14% less than 3-5 years and 54% more than 5 years. Average interval before a relapse were 11.6 years(11.6±11.15). There was a difference between their past regimen and their present regimen(P=0.001). The attitude towards taking a medication was assessed and they showed higher compliance with medication at present than in the past(P=0.001). In a case of smoking rate during treatment, the rate of non-smokers, who had been smokers, were higher(P=0.047). Conclusion: As a result, in order to prevent the disease from being relapsed and to increase the rate of treatment effectiveness, we need to make patients recognize the importance of regular follow-up examination and we should control thoroughly the patients. Furthermore, we need to provide them with more health education not to stop taking a medication earlier.

전후 일본의 경제 외교와 1958년 아시아경제연구소 설립 - 정책 네트워크의 변용적 진화 -

한송이 ( Songyi Han ),최은봉 ( Eunbong Choi ) 한국외국어대학교 일본연구소 2021 日本硏究 Vol.- No.87

本研究は、1950年代、日本が対米協調体制でアジアのための戦略、すなわち‘知’を形成することができる独自の政策スペースを制度化したプロセスを、アジアの問題調査会のネットワークが時期別にどのような集団との関係を形成し、相互作用してアジア経済研究所を設立したのかのメかニズムに見計らって表示する試みである。 そのために調査会が発刊した機関誌の『アジア問題』を中心に検討してネットワークを確認しようとした。ネットワーク内の「イシュー」と「行為者」及びネットワークの「構造」によりネットワークの変化を検討した。分析結果、調査会か政治家の支援を受ける知的ネットワークの形成、アジア協会との統合後、ネットワーク参加者の増加及びイシューによるネットワークの拡張、そして主な行為者のネットワーク内の位相変化によるネットワーク構造の変化に伴ってネットワークか'制度化される方向に進化した。特に、ネットワークか'垂直的なネットワークに変化しながら公式的な行為者の意図が反映された政策の産出物としてアジア経済研究所の設立が可能になったことが分 かった。ネットワークか'制度化された背景には、1950年代中·後半の賠償と経済協力が日本経済·外交のハイライトになったためであり、これは日本経済か東南アジアと経済圏を形成してぃく過程で発生したものだ。アジア経済研究所の設立はネットワーク内の行為者が各々の利害を結集した戦略的な行為の産物だと言える。 This study is an attempt to assess the process of institutionalizing Japan's strategy for Asia in the 1950s. The policy space for economic diplomacy that can form knowledge as a mechanism for the establishment of the Institute of Developing Economies through the formation and interaction of the network of the Asia Kyokai with each period. For this purpose, this study focused on the network by analyzing the Journal of Asia Kyokai, the organ published by the association. This study examined changes in the network according to the issues actors and the structure of the network. The authors argue that the network was evolved in the direction of institutionalization according to the formation of an intellectual network with politicians support, the expansion of the network with the increase in the network participants and issues after the integration with the Society for Economic Cooperation in Asia, and the changes in the network structure with changes in the status of the major actor in the network. Especially, as the network changed into a vertical pattern, the establishment of the Institute of Developing Economies was possible with the policy products in which official actors intentions were reflected. The background in which the network was institutionalized is that compensation and economic cooperation in the mid-to-late 1950s became the highlights of Japanese economic diplomacy, and this occurred in the process in which the Japanese economy formed an economic bloc with Southeast Asia. In sum, the establishment of the Institute of Developing Economies was the product of a strategic action by which the actors in the network united for their interests.

프로 골프선수들의 스포츠 경쟁불안에 관한 연구

이웅기 ( Woongki Lee ),한송이 ( Songyi Han ) 건국대학교 교육연구소 2005 교사와 교육(구 교육논집) Vol.29 No.-

The purpose of this study is to closely examine how professional golfers` levels of competitive anxiety according to their personal characteristics are different among various psychological factors affecting their competitiveness in a sports ground. Its subject was total 202 professional golfers who were composed of 98 men and 104 women. First, it was shown that female professional golfers had a higher level of competition-specific anxiety than male ones(p < .05). Secondly, it was shown that professional golfers with a low career had a higher level of competition-specific anxiety than those with a high career(p < .05) 1hirdIy, it was shown that female professional golfers had a higher level of competition state anxiety than male ones(p < .05). Fourthly, it was shown that professional golfers with a low career had a higher level of competition state anxiety than those with a high career(p < .05)

통합학급 장애학생 부모의 특수교사, 담임교사, 치료사와의 부모상담에 대한 인식

김경미 ( Kim Kyungmi ),한송이 ( Han Songyi ),이미숙 ( Lee Misuk ) 열린부모교육학회 2018 열린부모교육연구 Vol.10 No.1

본 연구는 특수교사, 담임교사, 치료사를 중심으로 통합학급 장애학생 부모의 부모상담에 대한 실태, 만족도, 효용성에 대해 살펴보았다. 이를 위해 통합학급 장애학생의 부모 132명을 대상으로 설문조사를 실시한 결과, 통합학급 장애학생의 부모는 특수교사에게 상담을 가장 많이 요청하였고, 상담에 도움이 되는 대상도 특수교사라는 응답이 가장 높게 나타났다. 또한 부모상담은 주로 ‘상담할 일이 생길 때 마다’ 이루어지고 있었다. 통합학급 장애학생 부모의 특수교사, 담임교사, 치료사와의 부모상담 만족도에 대한 평균을 살펴본 결과, 특수교사, 치료사, 담임교사 순으로 만족도가 높게 나타났고, 부모상담의 효용성에 대해서도 높게 인식하고 있었다. 따라서, 통합학급 장애학생 부모상담은 부모 스스로가 자녀 양육에 대한 자신감을 가질 수 있도록 이루어져야 하며, 자녀의 교육과 치료를 담당하는 특수교사, 담임교사, 그리고 치료사와 부모간의 상담에서 믿음과 신뢰를 바탕으로 부모상담이 조성되어야 할 것이다. This study investigated the current status, level of satisfaction, and efficacy regarding parent consultation focused on the consultation with special education teachers, homeroom teachers, and therapists. For the study, 132 parents of children with disabilities in inclusive classes responded. As the result of the survey, it was special teachers who were the most helpful to have a consultation with and received the most consultation request from the parents of students with disabilities in inclusive classes. The parents mostly requested the consultation whenever they had something to consult with. The satisfaction level of parent consultation with special education teachers, homeroom teachers, and therapists was found to be higher in order of special education teachers, therapists, and homeroom teachers. The parents also highly recognized the efficacy of the parent consultation. Therefore, parent consultation for the parents of students with disabilities should be done in the way of helping the parents to develop their confidence on child- rearing. Further, it is essential to build trust with special education teachers, homeroom teachers, and therapists.

< 전시-P-35 > pH가 TEMPO 산화된 닥나무 인피섬유의 나노섬유화에 미치는 영향

박정윤 ( Jungyoon Park ),박찬우 ( Chanwoo Park ),한송이 ( Songyi Han ),권구중 ( Gujoong Kwon ),김남훈 ( Namhun Kim ),이승환 ( Seunghwan Lee ) 한국목재공학회 2019 한국목재공학회 학술발표논문집 Vol.2019 No.1

셀룰로오스는 지구상에 널리 분포하는 대표적인 친환경 고분자 물질로 재생 가능하며 생분해성, 무독성 등의 장점이 있다. 여기에 cellulose로부터 유래된 nanofibrils는 비표면적이 매우 크고 강도적 성질, 열안정성, 표면개질 특성 등이 우수한 천연 고분자 물질로서 다양한 소재로의 적용 가능성이 높다. 특히 길이가 긴 cellulose nanofibrils는 web-like entangled structure를 이루기 때문에 복합체의 강성을 개선시킬 수 있어 연구가 활발히 진행 중이다. 이에 본 연구에서는 길이가 긴 cellulose nanofibrils를 제조하기 위해 공시재료로서 섬유장이 긴 paper mulberry bast fiber를 사용하였으며 비교적 약한 강도로 nanofibrillation을 시키기 위해 초음파 처리를 실시하였다. 보다 효율적인 nanofibrillation을 위해 전처리로서 TEMPO 산화를 실시하였으며 TEMPO 산화된 섬유의 pH변화에 따른 nanofibrillation 수율을 분석하고 제조된 cellulose nanofibrils의 특성을 분석하였다. 그 결과 pH가 높을수록 TEMPO 산화된 섬유의 표면 zeta-potential이 음의 값으로 증가하였다. 이에 따라 정전기적 반발력이 증가하면서 nanofibrillation 수율이 증가하였으며 섬유장이 긴 섬유의 단점인 꼬임 현상의 발생을 억제할 수 있었다. 결정화도 지수는 83.50%로 침엽수에 비해 높게 나타났으며 인장강도는 110.18 MPa로 같은 조건의 침엽수 대비 약 30% 증가된 결과를 나타냈다.

자율주행 차량용 인지 알고리즘 기초 연구

김홍만(Hongman Kim),허문녕(Moonnyeong Heo),한송이(Songyi Han),이세행(Sehaeng Lee),이진욱(Jinwook Lee) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11

< 전시-P-46 > 액상환원법을 이용한 은나노입자의 생성시 반응온도가 CNF 특성 및 은나노입자의 고착화에 미치는 영향

권구중 ( Gujoong Kwon ),서푸른나래 ( Pureunnarae Seo ),박찬우 ( Chanwoo Park ),한송이 ( Songyi Han ),김남훈 ( Namhun Kim ),이승환 ( Seunghwan Lee ) 한국목재공학회 2018 한국목재공학회 학술발표논문집 Vol.2018 No.2

< 전시-P-71 > ChCl/Lactic acid 혼합용매에 의해 소나무재로부터 추출된 리그닌 특성

권구중 ( Gujoong Kwon ),김진규 ( Jinkyu Kim ),박찬우 ( Chanwoo Park ),한송이 ( Songyi Han ),김남훈 ( Namhun Kim ),박정윤 ( Jungyoon Park ),이승환 ( Seunghwan Lee ) 한국목재공학회 2019 한국목재공학회 학술발표논문집 Vol.2019 No.1

지난 10년동안 전세계적으로 바이오매스로부터 석유대체 녹색원료를 사용하기 위한 환경친화적인 대안으로 사용할 가능성을 모색해 왔다. 리그닌은 바이오매스를 구성하는 주요 성분 중 하나로 자연에서 발견되는 유일한 방향족 폴리머이다. 이 성분을 바이오매스부터 효과적으로 분리하기 위해 alkaline, organosolv, ionic liquids 등을 이용한 다양한 분리 기술들이 개발되었다. 최근, lignocellulose 전처리를 위한 새로운 용제로 DES (deep eutectic solvent)가 성분 분리 및 개량 개질, 해중합을 위한 대체매체로서 많은 주목을 받고 있다. DES는 이온성 액체와 유기 용매의 특성을 모두 갖는 저비용, 높은 원자효율 및 기술적 경제적으로 적용 가능한 특성을 가진 새로운 세대의 녹색 용매이다. 일반적으로 수소 결합 공여체 (HBD)와 수소 결합 수용체 (HBA)의 자기 결합에 의해 준비되며, 모체 화합물이 결정화하는 능력을 감소시키는 강한 수소 결합 상호 작용에 의해 구동되는 액체를 형성한다. 또한 DES는 환경친화성이며, 제조가 쉽고 독성이 없는 장점을 가지고 있다. 그러나 아직 DES처리에 의해 분리된 리그닌의 특성에 대한 연구가 미비한 실정이다. 본 연구는 소나무재를 Choline chloride와 Lactic acid를 1:6의 몰비로 100℃의 온도조건에서 처리로 추출된 리그닌의 구조적 특성에 대해서 검토하였다. 리그닌수율은 추출 시간이 길어질수록 증가하였다. DES처리에 의해 추출된 리그닌은 다양한 분석에 의해 순도가 높고 독특한 구조적 특성을 가지고 있는 것을 확인하였다.

야간 조명 하 안대와 소등의 수면에 대한 효과 비교

신주용(Juyong Shin),임경옥(Kyoung-Ok Lim),조성남(Seongnam Cho),장소영(Soyeong Jang),차승민(Seung-Min Cha),한송이(Songyi Han),김무진(Moojin Kim) 대한수면의학회 2021 수면·정신생리 Vol.28 No.1

Objectives: The purpose of this study is to investigate the difference in the effects of eye-mask and light-off on sleep status according to a commercial fitness tracker and a sleep diary of psychiatric in-patients in correctional facilities where nocturnal light is compulsory. Methods: This study was conducted over 3 consecutive nights. In-patients of the National Forensic Psychiatric Hospital (n = 29) were assigned random subject numbers and slept as usual in the light-on condition on the first night. The subjects slept with eye-masks in the light-on condition on another night and without an eye-mask in the light-off condition on the other night. Subjects were asked to sleep wearing a commercial fitness tracker and to keep a sleep diary. The order of these changes in bedroom lighting condition on the second and third nights was assigned randomly to participants. Results: In comparison of the sleep variables between the light-on condition and the eye-mask condition, the Wakefullness After Sleep Onset (WASO) was shorter and sleep satisfaction was higher in the latter.(respectively, Z = 3.66, p < 0.017 ; Z = 2.69, p < 0.017) In comparison of the sleep variables between the light-on and light-off conditions, the WASO was shorter and sleep efficiency and sleep satisfaction were higher in the latter (respectively, Z = 2.40, p < 0.017 ; Z = 3.02, p < 0.017 ; Z = 3.88, p < 0.017). However, there were no differences in the sleep variables between the eye-mask condition and the light-off condition. Conclusion: Subjective improvements in sleep variables were noted in sleep diaries of institutionalized psychiatric patients under either the ‘eye-mask’ or ‘light-off’ condition. However, there were no significant differences between the ‘eye-mask’ and ‘light-off’ conditions. Therefore, we suggest that psychiatric patients in correctional facilities use eye-masks when sleeping.