증강 현실 지원을 위한 모바일 시스템 설계 및 구현

이종근,이종혁,Lee, Jong-Keun,Lee, Jong-Hyeok 한국정보통신학회 2012 한국정보통신학회논문지 Vol.16 No.9

본 연구에서는 상용화되고 있는 모바일 시스템에 증강현실 기술을 적용한 어플리케이션을 구현하므로 생기는 콘텐츠의 한계를 해결하기 위하여 증강현실 지원을 위한 전용 모바일 시스템의 요구분석을 한 후 이를 기반으로 모바일 시스템을 설계하고 구현하였으며, 증강현실 기법을 지원하는 NyARToolkit 기반으로 증강현실 어플리케이션을 구현하였다. 구현한 콘텐츠를 설계한 시스템에서 실행시켜 봄으로 시스템의 적정성 및 타당성을 확인할 수 있었다. In this paper we tried to overcome the limit of contents which occur when we implement the augmented reality technology adapted application on commercialized mobile system. First of all, we checked the requirement analysis of exclusive mobile system to support augmented reality. And then we designed and realized the mobile system based on this facts. Also we embodied augmented reality application based on NyARToolkit which assists augmented reality techniques. Finally the implemented contents operated properly in our exclusive mobile system. Consequently we confirmed the suitability and validity of our system through above test.

SCORM 기반의 동적인 시퀀스를 이용한 적응형 학습 시스템

이종근,김준태,김형일,Lee Jong-Keun,Kim Jun-Tae,Kim Hyung-Il 한국정보처리학회 2006 정보처리학회논문지D Vol.13 No.3

정형화된 교육 절차에 따라 학습을 수행하고 종료하는 방식의 e-learning으로는 학습자의 수준에 맞는 적절한 교육을 제공하기 어렵다. 이와 같은 문제점을 해결하기 위해 SCORM에서는 학습 결과에 따라 학습 절차를 규정하는 시퀀싱을 활용하여 학습자의 수준에 맞는 적절한 교육을 제공한다. 일반적으로 시퀀싱 설계는 교수자나 학습 저작자가 담당하여 학습 프로그램을 규칙화한다. 그러나 정형화된 시퀀싱은 학습 집단이나 학습자의 특성을 반영하지 못하며, 잘못된 시퀀싱이 설계되었을 경우에 학습자들이 불필요한 재학습을 수행해야 한다. 본 논문에서는 이와 같은 문제점을 해결하기 위해 동적 시퀀싱을 적용한 학습 평가 자동화 시스템을 제안한다. 동적 시퀀싱에서는 학습자들의 평가점수가 시퀀싱에서 활용하는 기준점수에 반영되어 기준점수를 동적으로 변화시킨다. 기준점수를 동적으로 변화시킴으로 시퀀싱은 학습 집단이나 학습자들의 수준에 맞게 동적으로 변화된다. 본 논문에서는 몇 가지 실험을 통하여 제안한 동적 시퀀싱을 적용한 학습 평가 자동화 시스템이 학습 집단이나 학습자의 수준에 적합한 교육 절차를 제공함을 보였다. The e-learning system in which the learning is carried out by predefined procedures cannot offer proper learning suitable to the capability of individual learner. To solve this problem, SCORM sequencing can be used to define various learning procedures according to the capabilities of learners. Currently the sequencing is designed by teachers or learning contents producers to regularize the learning program. However, the predefined sequencing may not reflect the characteristics of the learning group. If inappropriate sequencing is designed it may cause the unnecessary repetition of learning. In this paper, we propose an automated evaluation system in which dynamic sequencing is applied. The dynamic sequencing reflects the evaluation results to the standard scores used by sequencing. By changing the standard scores, the sequencing changes dynamically according to the evaluation results of a learning group. Through several experiments, we verified that the proposed learning system that uses the dynamic sequencing is effective for providing the proper learning procedures suitable to the capabilities of learners.

우리나라 배합사료의 수요예측에 관한 연구

이종근,김영철 ( Jong Keun Lee,Young Chul Kim ) 한국축산경영학회 1993 韓國畜産經營學會誌 Vol.9 No.1

창원시 학동 전기 소아들의 아토피 피부염 유병률과 그 원인에 관한 연구

이종근,이호성,하진실,박동진,백도현,하권철,Lee, Jong-Keun,Lee, Ho-Sung,Ha, Jin-Sil,Park, Dong-Jin,Paik, Do-Hyun,Ha, Kwon-Chul 한국환경보건학회 2009 한국환경보건학회지 Vol.35 No.3

In the past decade there has been increasing concern about the atopic dermatitis (AD) associated with environmental diseases. AD has been increased in the last decade and known as one of the multifactoral diseases, which has the genetic background and environmental factors at the same time. The purposes of this study were to investigate the prevalence rate and etiologic risk factors of atopic dermatitis in preschool children in Changwon, which is a one of the Korean cities and has a large industrial complex. We reviewed and analyzed the statistical data, obtained from Korea National Health Insurance Corporation, related to prevalence rate by age and administrative district. A cross-sectional questionnaire survey, based on ISAAC (International Study of Allergy and Asthma in Childhood), was conducted on random samples of preschool children (5 to 8 years old) of large sized kindergartens in Changwon. The lifetime and last one years prevalence of AD in preschool children in Changwon was increased from 1998 to 2008. The prevalence rate of AD in the preschool children in Changwon city was 9.6%. The prevalence rate in boys was 9.7% and that in girls was 9.4%. The one year prevalence of AD was ranked as middle among other provincial cities in Korea in 2008. This study showed that the prevalence rate of the atopic disease in Changwon was 9% in 2008, which was increased especially compare to 2000. More active governmental approaches for control and prevention of atopic dermatitis for children are recommended. Further studies are needed for more accurate estimation of the prevalence of AD in Korea including different regional and age population.

흉부 디지털 영상의 병변 유무 판단을 위한 딥러닝 모델

이종근,김선진,곽내정,김동우,안재형,Lee, Jong-Keun,Kim, Seon-Jin,Kwak, Nae-Joung,Kim, Dong-Woo,Ahn, Jae-Hyeong 한국정보통신학회 2020 한국정보통신학회논문지 Vol.24 No.2

흉부 영상을 통해 진단 가능한 병변은 무기폐, 심비대, 덩어리, 기흉, 삼출 등 그 종류가 수십 가지에 이른다. 흉부 병변의 정확한 진단과 위치 및 크기를 판단하기 위해 일반적으로 전산화단층촬영(CT) 검사가 필요하지만, 전산화단층촬영은 검사 비용과 방사선 피폭 등의 단점이 있다. 따라서 본 논문에서는 흉부 병변 진단의 일차적 선별도구로서 방사선검사(X-ray) 영상에서 병변 유무 판단을 위한 딥러닝 알고리즘을 제안한다. 제안하는 알고리즘은 병변의 유무 판단에 최적화하기 위해 다양한 구성 방법들을 비교하여 설계하였다. 실험 결과, 기존 알고리즘보다 병변 유무 판단률이 약 1% 정도 향상되었다. There are dozens of different types of lesions that can be diagnosed through chest X-ray images, including Atelectasis, Cardiomegaly, Mass, Pneumothorax, and Effusion. Computed tomography(CT) test is generally necessary to determine the exact diagnosis and location and size of thoracic lesions, however computed tomography has disadvantages such as expensive cost and a lot of radiation exposure. Therefore, in this paper, we propose a deep learning algorithm for judging the presence or absence of lesions in chest X-ray images as the primary screening tool for the diagnosis of thoracic lesions. The proposed algorithm was designed by comparing various configuration methods to optimize the judgment of presence of lesions from chest X-ray. As a result, the evaluation rate of lesion presence of the proposed algorithm is about 1% better than the existing algorithm.

기후변화에 대비한 차세대 홍수방어 전략 - 도시 수해경감을 위한 일본의 사례 -

이종근,이영근,서영은,박상우,Lee, Jong-Keun,Lee, Yeong-Geun,Seo, Yeong-Eun,Park, Sang-Woo 한국수자원학회 2009 물과 미래(한국수자원학회지) Vol.42 No.4

히브리 잠언과 한국 속담

이종근(Jong-Keun Lee) 한국구약학회 2021 구약논단 Vol.27 No.1

This study deals with comparative research on the Hebrew proverbs in the Old Testament and Korean adages. Both cultures have been beset with peculiar geopolitical settings and have struggled to survive through centuries of suffering. Hebrew proverbs are expressions of wisdom based on the fear of God. They are arranged for the daily lives of ancient Israelites in Canaan, and the ferocious battlefield between groups vying for hegemonic power. Hebrew proverbs and Korean adages are both substantially more numerous than those of other cultures in general. Proverbs are composed of three structures. First, wisdom is expressed as the threefold union of wisdom, understanding, and knowledge. They worked together in the creation of the world. Second, they are in complementary and inseparable relationship and are routinized and personified, suggesting deification. Third, they work together in building personal lives. Threefold union is reflected in the building of human lives which is similar to the creation of the world. Korean adages are crystals and maxims for lives in the Korean peninsula. They are short phrases, condensed forms of folk wisdom and values, which are pleasant to the ears and easy to memorize. Hebrew proverbs and Korean adages share both commonalities and differences. Issues of divine origin and folk wisdom can contribute keen insights for coping with life circumstances. It seems worthwhile to compare, systematize, and apply both Hebrew proverbs and Korean adages in the period of the COVID-19 crisis.

시리아-에브라임 전쟁과 디글랏 빌레셀 3세의 패권

이종근(Jong-Keun Lee) 연세대학교 신과대학(연합신학대학원) 2010 신학논단 Vol.61 No.-

딥러닝을 이용한 기흉 폐렴의 검출과 분류

이종근(Jong-keun Lee),김선진(Seon-jin Kim),안재형(Jae-hyung Ahn) 한국정보통신학회 2019 한국정보통신학회 종합학술대회 논문집 Vol.23 No.2

주거시설 공간별 조도 환경에 대한 연구

이종근(Lee, Jong-Keun),조현욱(Cho, Hyun-Uk) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6

Light is a necessary environmental element for human being to live in, and it is used in the past to light up, whereas it is used in modern times to recognize objects and to influence both body and mind. Modern people, in particular, are used to making artificial light and living in artificially decorated indoor environments for a long time. In particular, since multiple living activities are performed for different purposes and purposes, lighting plans should provide illumination that is satisfactory to residents with a safe and comfortable light environment. In this study, we calculated the relative luminance of the living room, room, toilet, kitchen, lighting measurement, and the degree of stability after comparing it with the original measurement standards, which are commonly used by people in residential facilities in similar areas as a standard measurement method. The results of the study could help create a safe and pleasant lighting environment.