• 셀메드
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• 제13권6호
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• pp.8.1-8.4
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• 2023

The purpose of this study is to suggest that activities consisting of sympathy and gratitude are the way to healing. In our team's Hope World (希望世上), we changed the lyrics of GunbamTaryeong, which Koreans know the most, to create a healing Taryeong. The iterative refrain changed to "It's nice, it's hope, it's a good world for everyone." "The Wind Blows, Spring Has Come, The Moon Is Bright" will be the beginning of each chapter in GunbamTaryeong. It looks like a bright lyric, but it also shows both sides. All members participated in changing the lyrics, harmonizing the lyrics and rhythm, preparing props, playing musical instruments, and exciting performances. Therefore, it can be said that it is the story of healing where everyone is together. The song of Hope World is a real Taryeong that heals those who plan together, sing together, play musical instruments together. It's a "hope-Taryeong (希望打令)" who dreams of a "everyone good world." It's a Taryeong that lingers in my mouth and comes to mind. In this way, activities consisting of mutual cooperation and love doubled gratitude and sympathy for each other, and we think healing was achieved in the process. In this study, we suggest that sympathy and gratitude are perhaps the first steps towards healing. The Hope World Song (希望世上歌) is available on our channel YouTube (https://youtu.be/hgPiD4g2-iM).

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.789-792
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• 2003

Pipe inspection has a great importance to ensure safety for the nuclear power plant. In this paper, we designed visual inspection module for the tube internal, which diameter is 15${\sim}$20mm. And we made inspection module which consisted of CCD camera and light. And the relation between image and real world coordinate is established. Image processing is performed to calculate mapping parameter and analyze the size of defect. For the calculation of mapping parameter, experiment is performed using grid type test pattern. Acquired image is processed to extract image coordinate. Edge detection, thresholding, median filtering and morphology filtering is applied to extract grid pattern. Extracted image coordinate is used to calculate image to real world mapping. Lens distortion was considered and corrected to get exact data. Coordinate transformation data is provided for the users to recognize easily. Experiment was performed using grid type test pattern, we extracted lens distortion parameter and real coordinate of defect point. Radial distortion of lens was corrected but tangential distortion was not considered. As continuum to this study, the tangential distortion of lens is considered and improvement of analy zing technique for the tube internal be explored continuously.

• 대한교통학회지
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• 제32권1호
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• pp.73-81
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• 2014

이 연구는 고속도로에서 발생한 교통사고에 대한 기하구조의 영향을 알아보고자 시도되었다. 기하구조의 경우에는 지침 등에서 정하는 기준 권장값등이 있지만, 기존의 사고모형에서는 교통사고에 영향을 미치는 기하구조의 자료가 통합된 형태로 사용되어 혼합된 형태로 설치된 현실을 추정된 모형이 제대로 설명하지 못하는 단점이 있다. 따라서 이 연구에서는 기하구조를 기준값에 의해 세분화된 기하구조 자료를 사용함으로써, 현실을 반영한 모형을 추출하고자 하였다. 그리고 각 기하구조별 탄력성 분석을 통해 사고에 미치는 영향을 제시하였다. 이는 향후 교통안전을 고려한 기하구조의 지침 정립에 도움이 될 것으로 사료된다.

• 한국전자통신학회논문지
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• 제9권3호
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• pp.297-302
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• 2014

증강현실이란 실세계의 오브젝트에 가상의 오브젝트를 증강시키는 기술로 현실세계에 디지털 정보를 시각화 해주는 기능을 한다. 또한, 증강현실은 실세계와 가상세계를 실시간으로 결합함과 동시에 사용자와 컴퓨터간 상호작용하도록 함으로써 사용자에게 정보전달은 물론 지각능력에 도움을 주며 사용자의 몰입감을 높여주는 기술이라고 할 수 있다. 본 논문에서는 VRML로 모델링된 3차원 객체를 프로그래밍을 통해 3차원 데이터가 증강되는 컨텐츠를 개발하였다. 또한, 가상물체들의 조합을 통해 3차원 아바타 및 다양한 가상의 의상들을 증강시키는 응용기술을 제안하였다. 게다가, 사용자가 직접 마커를 움직여 컴퓨터와 사용자간의 상호작용이 가능한 인터페이스를 제시하여 사용자의 몰입감을 증대 시킬 수 있었다.

• Journal of Construction Engineering and Project Management
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• 제9권4호
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• pp.16-33
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• 2019

The increasing size and complexity of modern construction projects demands mature capabilities of onsite personnel with regard to recognizing unsafe situations. Construction safety training is paper or computer-based and suffers from a distinct gap between the classroom training environment and real-world construction sites; even trained personnel can find it difficult to recognize many of the potential safety hazards at their jobsites even after receiving construction safety training. Immersive technologies can overcome the current limitations in construction safety training by reducing the gap between the classroom and a real construction environment. This research developed and tested a new Augmented Reality (AR)-based assessment tool to evaluate the hazard recognition skills of students majoring in construction management as part of a construction safety course. The quantitative and qualitative results of this research confirmed that AR-based assessment can become a very effective assessment tool to evaluate safety knowledge and skills in a construction safety course, outperforming both paper and computer-based assessment methods. The students preferred AR-based assessment because it provides a realistic visual context for real world safety hazards.

• 패션비즈니스
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• 제8권5호
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• pp.144-154
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• 2004

The purpose of this study is to consider the characteristics of character's body-image throughout the on-line games and with this study we researched the symbolic meaning reflected by the character's body-images throughout the fashion. The characteristics of the body-images presented in modern fashion is expressed in 4 features on Lineage II game. First, it adopts the ways in which modern fashion expresses the erotic image and represents various sexual stimulation, which can not be represented in the real world, in cyberspace. Second, it expresses the beauty and taste in sensitivity by exchanging the items, which are the features of body-image, each other as the neutral body-image and pursuits for the double side feature between males and females by dismantling the point of view to sex. Third, it shows the new value system different from the existing one by using extraordinary items and materials that you've never seen in real fashion as the abnormal body-image expressed in informal and inaccurate principal of deformation. Fourth, it show the body with the items which induces more interest and curiosity than the real world do as the humorous body-image accompanying with childish amusement and pleasure.

• 정보처리학회논문지B
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• 제13B권7호
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• pp.663-670
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• 2006

실 세계 영상에 가상표적을 효과적으로 전시하여 현실감을 높이려면 먼저 두 세계를 정합한 후 폐색영역을 산출하여 가상객체의 위치를 결정하는 것이 필수적이다. 본 논문에서는 실 영상위에 지정된 경로에 따라 가상표적을 이동시킬 때 발생하는 폐색문제를 해결하는 새로운 방법을 제안한다. 이를 위해 먼저 실험 영역의 DEM을 이용하여 3차원 가상세계를 생성하고 이를 CCD 카메라 영상과 시각적 단서를 이용하여 정합한다. 또한 스네이크 알고리즘과 픽킹 알고리즘을 이용하여 영상에서 폐색 처리될 지점의 3차원 정보를 산출하고 표적이동시 이를 이용하여 폐색문제를 해결하는 방법을 제안하였다 실험에서는 부분적 폐색이 발생하는 환경에서 제안한 방법의 유효성을 입증하였다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제6권1호
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• pp.41-54
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• 2002

The purpose of this study is to find out what mathematical situation means, how to pose a meaningful situation and how situation-centered teaching could be done. The obtained informations will help learners to improve their math abilities. A survey was done to investigate teachers' perception on teaching-learning in mathematics by elementary teachers. The result showed that students had to find solutions of the textbook problems accurately in the math classes, calculated many problems for the class time and disliked mathematics. We define mathematical situation. It is artificially scene that emphasize the process of learners doing mathematizing from physical world to identical world. When teacher poses and expresses mathematical situation, learners know mathematical concepts through the process of mathematizing in the mathematical situation. Mathematical situation contains many concepts and happens in real life. Learners act with real things or models in the mathematical situation. Mathematical situation can be posed by 5 steps(learners' environment investigation step, mathematical knowledge investigation step, mathematical situation development step, adaption step and reflection step). Situation-centered teaching enhances mathematical connections, arises learners' interest and develops the ability of doing mathematics. Therefore teachers have to reform textbook based on connections of mathematics, other subject and real life, math curriculum, learners' level, learners' experience, learners' interest and so on.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권8호
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• pp.3965-3983
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• 2017

We propose a novel eye tracking method that can estimate 3D world coordinates using an infrared (IR) stereo camera for indoor and outdoor environments. This method first detects dark evidences such as eyes, eyebrows and mouths by fast multi-level thresholding. Among these evidences, eye pair evidences are detected by evidential reasoning and geometrical rules. For robust accuracy, two classifiers based on multiple layer perceptron (MLP) using gradient local binary patterns (GLBPs) verify whether the detected evidences are real eye pairs or not. Finally, the 3D world coordinates of detected eyes are calculated by region-based stereo matching. Compared with other eye detection methods, the proposed method can detect the eyes of people wearing sunglasses due to the use of the IR spectrum. Especially, when people are in dark environments such as driving at nighttime, driving in an indoor carpark, or passing through a tunnel, human eyes can be robustly detected because we use active IR illuminators. In the experimental results, it is shown that the proposed method can detect eye pairs with high performance in real-time under variable illumination conditions. Therefore, the proposed method can contribute to human-computer interactions (HCIs) and intelligent transportation systems (ITSs) applications such as gaze tracking, windshield head-up display and drowsiness detection.

• 문화기술의 융합
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• 제4권4호
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• pp.309-316
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• 2018

본 연구에서는 실제와 같은 가상발표환경을 구현하여 실전에서 자신감 있게 발표할 수 있도록 도와주기 위한 3D 가상현실기반의 발표훈련시스템을 제안한다. 제안시스템은 발표자의 음성과 행동을 실시간으로 분석하여 가상공간의 청중들에게 반영되게 함으로서 사실감 있고 몰입도 높은 발표 및 면접 환경을 제공하였다. 발표자는 6DOF Tracking이 되는 HMD와 VR Controller를 착용하고 Kinect를 이용하여 가상공간 속에서의 시점 변화 및 인터랙션을 줄 수 있으며 가상공간은 사용자가 설정한 다양한 환경으로 변경이 가능하도록 하였다. 발표자는 가상공간 속에 별도로 제공되는 뷰에 표시된 프리젠테이션 파일 및 스크립트를 보며 내용 숙지 및 발표 숙달 연습을 하게 된다.