• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.87-89
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• 2013

본 논문에서는 Ends-In Search Stretching 기법을 적용하여 명암 대비를 강조하고, 명암 대비가 강조된 영상에서 삼각형 타입의 소속 함수를 이용한 퍼지 이진화 기법을 적용한 후, 그 다음 임의의 패턴 입력에 대해서도 효과적으로 특징을 분류하는 개선된 ART2 알고리즘을 이용하여 결함 영역을 검출한다. 제안된 방법을 세라믹 소재 영상을 대상으로 실험한 결과, 기존의 방법보다 효율적으로 결함이 검출되는 것을 확인하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.463-466
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• 2016

아동은 미술 활동을 통하여 잠재되어 있는 개인의 정서, 심리, 욕구를 표현한다. 그림은 색채뿐만 아니라 그림의 크기에 따라 심리 상태가 나타나는데, 숨겨진 심리 상태를 해명하기 위해 여러 심리학자들이 연구하고 있다. 따라서 본 논문에서는 색채 정보와 그림의 크기 정보를 분석한 후에 퍼지 추론 방법과 침식 및 팽창 기법을 적용하여 아동의 심리 상태를 분석하는 방법을 제안한다. 제안된 방법의 효율성을 분석하기 위해 알슈울러와 해트윅의 색채에 따른 심리 상태 및 Grunwald의 공간 구성에 따른 심리 분석을 기반으로 제안된 방법을 실험한 결과, 제안된 색채 심리 분석 방법이 알슈울러와 해트윅의 색채에 따른 심리 상태와 Grunwald의 공간 심리 분석과 비교하여 거의 일치하는 것을 확인하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.05a
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• pp.201-204
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• 2010

본 논문에서는 WebCam 영상을 이용하여 빛의 영향을 감안하여 제시된 퍼지 이진화 기법을 적용하여 영상을 이진화 한 후에 흰색 픽셀 정보를 이용하여 차 연산을 수행하고 GRASSFIRE 알고리즘을 적용하여 침입자를 감시하는 방법을 제안한다. 제안된 침입자 감시 방법을 실험한 결과, 기존의 방법보다 빛의 영향에 민감하게 반응하지 않고 효과적으로 침입자를 감시할 수 있는 것을 확인하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.157-159
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• 2009

본 논문에서는 세라믹을 비파괴 검사를 통하여 얻어진 영상에서, 조직의 이상이나 결함의 정도를 자동으로 확인하는 방법을 제안한다. 비파괴 검사를 통하여 얻어진 영상에서 소벨 마스크를 적용하여 윤곽선을 추출하고, 추출된 윤곽선의 방향 정보를 $9{\times}9$ 마스크에 적용하여 영역을 분류한다. 그리고 분류된 각 영역을 히스토그램 스트레칭을 적용하여 영상을 보정하고, 4 방향 윤곽선 알고리즘을 적용하여 객체를 추출한다. 그리고 추출된 객체의 영역에 대해 형태학적 정보를 이용하여 잡음을 제거한 후, 손상된 영역을 추출한다. 본 논문에서 제안한 방법을 비파괴검사를 통하여 얻어진 영상을 대상으로 실험한 결과, 손상된 영역을 비교적 정확히 검출되는 것을 확인하였다.

• Journal of information and communication convergence engineering
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• v.19 no.1
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• pp.29-35
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• 2021

While the population of pet dogs and pet-related markets are increasing, there is no convenient and reliable tool for pet health monitoring for pet owners/caregivers. In this paper, we propose a mobile platform-based pre-diagnosis system that pet owners can use for pre-diagnosis and obtaining information on coping strategies based on their observations of the pet dog's abnormal behavior. The proposed system constructs symptom-disease association databases for 100 frequently observed diseases under veterinarian guidance. Then, we apply the possibilistic fuzzy C-means algorithm to form the "probable disease" set and the "doubtable disease" set from the database. In the experiment, we found that the proposed system found almost all diseases correctly, with an average of 4.5 input symptoms and outputs 1.5 probable and one doubtable disease on average. The utility of this system is to alert the owner's attention to the pet dog's abnormal behavior and obtain an appropriate coping strategy before consult a veterinarian.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.05a
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• pp.137-140
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• 2021

본 논문에서는 X-Ray 영상에서 발 뼈의 골절 영역을 분석 및 진단하기 위한 전단계로서 X-Ray 영상에서 뼈와 피부 영역을 분할하는 방법을 제안한다. 제안된 방법은 X-Ray 영상의 피부 영역과 발 뼈 영역을 분할하기 위해 가우시안 필터를 적용하여 DOG 영상을 생성한다. 그러나 기존의 가우시안 필터는 정적으로 적용되기 때문에 영상을 촬영하는 부위와 각도에 따라 영상의 특성이 달라지는 X-Ray 영상에 적용하기에 부적합하다. 따라서 부위와 각도에 따라 영상의 특성 변화에 민감하지 않는 동적 가우시안 필터를 제안한다. 실험 결과에서는 제안하는 동적 가우시안 필터와 기존의 정적인 가우시안 필터를 각각 적용하여 생성된 DOG 영상에 대해서 발 뼈 영역과 피부 영역을 분할하고, 효율성을 TPR과 특이도로 분석한 결과, 제안된 동적 가우시안 필터를 적용한 방법이 정적 가우시안 필터보다 평균적으로 TPR는 0.12%와 특이도는 평균적으로 0.36%가 개선된 것을 확인하였다.

• (The)Study of the Eastern Classic
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• no.33
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• pp.385-411
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• 2008

This thesis aims at examining his understandings about the The Great Learning centering on the of the founder of the YiYongHuSaeng School (利用厚生學派: A school who pursued prosperous economy and welfare of people) orthe BukHak School(北學派: A positive school that pursued mercantilism) from the Joseon Dynasty, Dam-Heon Hong Dae Yong (1731-1783). 1) From what is indicated in the , his studies mainly focused on the annotations from DaeHakJangGuDaeJeonJipJu ("大學章句大全集註": A book that edited different phrases from the Great Learning into chapters and paragraphs), Questioning of the Great Learning", and "JuJaUhRyu (朱子語類: A book of Confucian literature written by Yeo Jung Deok" of Zhu Xi who was a representative scholar of the Neo-Confucianism in the Song Dynasty. 2) Acknowledging entirely the arguing points of Zhu Xi, he is taking a critical position in a way that partial doubts are divided into seven chapters and questioned. 3) For the main characteristic and direction of the questioning, he is estimating that Zhu Xi only stressed the 'means' and 'interior' out of the world of 'means and ends' and 'interior and exterior' in Zhu Xi's recognizing and handling cases; instead, he emphasized putting equivalent value on the 'ends' and 'exterior' as well. 4) In fact, such questions raised partially were misconceived since they were not carried out through profound understanding nor systematic logic expansion of what Zhu Xi insisted. 5) Despite this, at the point where Neo-Confucian thoughts were fixed and weakened only with its form left in the late Joseon Dynasty, his perspective on the study of Confucian classics that the 'ends' and 'exterior' should be as equally valued as the 'means' and 'interior' by examining through the core text of the Neo-Confucianism, The Great Learning has its significance in his YiYongHuSaeng dogma that says politicians, by all means, should provide the ruled with economic convenience and welfare and this is their very right virtue.

• Journal of the Korean Society of Hazard Mitigation
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• v.2 no.3 s.6
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• pp.109-117
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• 2002

An analysis to allocate storage space for sediment accumulation during the economic life of the reservoir is required in the planning or design of a reservoir. This analysis has been the most difficult and tedious aspect to deal with reservoir sedimentation because of the interaction between the various parameters related to the hydraulics of flow, reservoir operating policy, inflowing sediment load. The approach to analyzing spatial distribution of deposits has relied on empirical methods, all of which required a great deal of simplification from the actual physical phenomena. For the purpose of this study, reservoir sedimentation rate computed by Empirical Area Reduction Method is compared with measuring rate along the Soyang-gang Dam. As a conclusion, reservoir sedimentation rate can be estimated exactly by Empirical Area Reduction Method.

• Hwankyungkyoyuk
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• v.18 no.1 s.26
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• pp.120-133
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• 2005

This study investigated the changes of consciousness and ambivalent attitudes about the important environmental issues among the teachers who enrolled the environmental education training. Experimental and control groups were composed with 47 and 30 person, respectively. Environmental issues were constructions of sea-wall, nuclear power plant and dam. Cronbach alpha of the self-developed questionnaire was $0.6909{\sim}0.8992$. Score were made with 5 Likert scales for consciousness, and with semantic differential half scale for ambivalent attitudes. Almost teachers(94.0% and 97.1%) have above 10 years teaching career. Strangers in environmental program were 53.2%. After environmental training, teachers' consciousness was significantly changed to negative about the construction of sea-wall for the farm field and industry complex area(p=0.019), and about the construction of dam for disaster like flood(p=0.026), and for adverse effects of citizen by fog(p=0.042). They were also significantly changed to negative about the construction of nuclear power plant for economical energy(p=0.004)', no-emission of greenhouse gases(p=0.033)', 'alternative energy(p=0.000)', 'destruction of ecology(p=0.052)' and 'social fear(p=0.009)'. The consciousness of teachers who have the experience of environmental training, were significantly changed to negative about the construction of nuclear power plant. Scores of teachers' ambivalent attitudes were made lower in experimental than control group about the construction of sea-wall and nuclear power plant. After education training, they were made lower so much as -10.0% in control, but higher much as +4.4% in experimental, and severely higher much as 86.5% in teachers who had experienced the environmental training about construction of sea-wall. Their scores were made lower so much as -3.3% in control, but much as -6.4% in control.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.10
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• pp.1340-1346
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• 2018

There have been researches on game continuance intention based on consumer behaviour theory of management science. Such macro access of computer game analysis might be insufficient to draw valuable results due to complex subsystem structure of recent computer games. In this paper, we choose 'Blade and Soul' game that was first published in 2012 and has been within top 20 MMORPG in Korea but known as a 'long time users' only game'among game players recently. Three user groups - long loyalty, concentrated, casual - are classified based on their play history and play time per day of Blade and Soul. The first survey with 222 subjects revealed that the real strength of the game was not the combat - Dungeon, Arena, Battleground competition - but very cohesive game community Blade and Soul has. Thus, we conduct another survey on the game community issues among 148 long time users (over 3 years playing history) and analyze their traits and behaviour patterns.