• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2006년도 정기 학술대회 논문집
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• pp.127-132
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• 2006

Recently, several displacement measuring instruments such a GPS are substantially developed by development of an artificial satellite. Considering this trend, in future displacement measurement will be a very efficiency method, therefore we need to develop structure maintenance & management by using displacement measuring instruments. In this study, I suggest to maintenance & management method about simple beams and cantilever beams which are very important structurein civil engineering by using displacements. I suggest a system which trace behavior of beams by combining some measurement points and a specific displacement function and research that tl1e proper number of measurement and optimum measurement points to efficiently use the system.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(4)
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• pp.5-8
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• 2001

We propose a realtime numeric caption recognition algorithm that automatically recognizes the numeric caption generated by computer graphics (CG) and displays the modified caption using the recognized resource only when a valuable numeric caption appears in the aimed specific region of the live sportscast scene produced by other broadcasting stations. We extract the mesh feature from the enhanced binary image as a feature vector after acquiring the sports broadcast scenes using a frame grabber in realtime and then recover the valuable resource from just a numeric image by perceiving the character using the neural network. Finally, the result is verified by the knowledge-based rule set designed for more stable and reliable output and is displayed on a screen as the converted CC caption serving our purpose. At present, we have actually provided the realtime automatic mile-to-kilometer caption conversion system taking up our algorithm f3r the regular Major League Baseball (MLB) program being broadcasted live throughout Korea over our nationwide network. This caption conversion system is able to automatically convert the caption in mile universally used in the United States into that in kilometer in realtime, which is familiar to almost Koreans, and makes us get a favorable criticism from the TV audience.

• 한국통신학회논문지
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• 제39C권8호
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• pp.708-715
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• 2014

본 논문은 센서 데이터의 이상을 감지하기 위하여 실시간 신뢰구간을 추정하였다. 실시간 신뢰구간 추정은 시계열분석 방법인 지수평활법과 이동평균법의 평균제곱오차를 비교하여 오차가 적은 이동평균법을 적용하였다. 이와 같이 추정된 신뢰구간을 측정된 센서 데이터가 이탈하게 되면 이상감지 경보를 통해 관리자에게 알려준다. 제안한 방법은 선박 내부의 실시간 이상감지를 위한 것으로 무선센서네트워크(WSN)와 사용자의 접근성을 높이기 위해 안드로이드 단말기를 사용하였다. 관리자는 실시간 신뢰구간에 따른 이상감지 정보를 활용하여 선박 내부에서 발생한 위급한 상황에서 신속하고 정확하게 의사결정을 함으로써 안전운항을 할 수 있다.

• Journal of Mechanical Science and Technology
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• 제14권9호
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• pp.956-967
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• 2000

In this paper, we explore the issues of force display in the cooperative virtual environment shared by multiple users distributed over the network with heterogeneous hardware platforms. The proposed method is to cope with the problem of small time delay and the difference of sampling rate in the distributed configuration. In the proposed approach the interaction forces of the participants are just treated as the independent sources of acceleration. Thus the action of a participant simply changes the acceleration of the virtual object and consequently the states of the virtual object will be updated. When the updated states are reported to all the participants, the information on the time of state changes is delivered, too. Employing the discrete state information updated by the other users, each user modifies his own virtual environment and pseudo-realtime simulation can be realized. Excluding the software interface and the communication technique, it is proposed the simulation method for the operation of respective users and the way of calculating the driving input to the display device. For experimental verification we construct a cooperative virtual environment shared by two remote users and outline the results of experiments.

• 대한의용생체공학회:의공학회지
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• 제14권4호
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• pp.371-378
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• 1993

A new recognition algorithm which decides thge opening & the closing states of subject's eye and isn't affected by the subject's background is proposed. And it is tested in circumstances in which subject's motions are not restricted using the developed system. AERS (Automatic Eye opening & closing Recognition System) . The significant characteristic of the AERS is that it dosen't need any extra hardware except a formal CCD carmera and an image grabber but it works so well and so fast. The AFRS wcould be particularly well suited to a tray of communications of patients in a hospital, who can not communicate othertvise.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2006년도 추계학술대회 논문집
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• pp.376-380
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• 2006

There are several methods which estimate the behavior of the Structures. Recently, several displacement measuring instruments such a GPS are substantially developed. So, considering this technique, displacement measurement will be a very efficient method for estimating the behavior of the Structures and maintenance. Therefore we need to develop methods of structure maintenance & management by using displacement measuring instruments. In this study, I suggest to maintenance & management method by using displacements about simple beams and cantilever beams which are very important structure in civil engineering. The results show that the proposed method is capable of estimating the displacement and stress of the Beam Member by combining the proper number of measurement and optimum measurement points.

• 정보처리학회논문지A
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• 제11A권2호
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• pp.189-194
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• 2004

본 논문은 다량의 고차원 얼굴 표정 모션 데이터를 2차원 공간에 분포시키고, 애니메이터가 이 공간을 항해하면서 원하는 표정들을 실시간 적으로 선택함으로써 얼굴 표정 애니메이션을 생성하는 방법을 기술한다. 본 논문에서는 약 2400여개의 얼굴 표정 프레임을 이용하여 표정공간을 구성하였다. 표정공간의 생성은 임의의 두 표정간의 최단거리의 결정으로 귀결된다. 표정공간은 다양체 공간으로서 이 공간내의 두 점간의 거리는 다음과 같이 근사적으로 표현한다. 임의의 마커간의 거리를 표시하는 거리행렬을 사용하여 각 표정의 상태를 표현하는 표정상태벡터를 정의한 후, 두 표정이 인접해 있으면, 이를 두 표정 간 최단거리(다양체 거리)에 대한 근사치로 간주한다. 그리하여 인접 표정들 간의 인접거리가 결정되면, 이틀 인접거리들을 연결하여 임의의 두 표정 상태간의 최단거리를 구하는데, 이를 위해 Floyd 알고리즘을 이용한다. 다차원 공간인 표정공간을 가시화하기 위해서는 Sammon 매핑을 이용하여 2차원 평면에 투영시켰다. 얼굴 애니메이션은 사용자 인터페이스를 사용하여 애니메이터들이 2차원 공간을 항해하면서 실시간으로 생성한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 춘계학술대회
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• pp.291-295
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• 2022

본 논문은 시민들의 Life Style 변화에 대응하고 송산그린시티의 미래상을 달성하기 위해 기술과 주거, 산업, 관광레저 등 기능이 상호 효율적으로 융합된 환경친화적 첨단도시를 건설하기 위하여 스마트도시에 적용한 u-상수도 관로파손감지시스템 구축기술에 대하여 기술하기로 한다. 관로파손감지시스템은 송산그린시티 동측지구내 상수도관 상부에 설치되는 스마트예방시트, 관로파손감지기, 관파손감지 소프트웨어, 서버 등으로 구성되며 중앙제어부(관파손감지소프트웨어, 서버)는 화성시 맑은물사업소내에 설치되어 SKT의 WCDMA방식의 무선통신망을 통하여 현장에서 화성시로 데이터를 전송하고 있다. 본 시스템은 굴착공사중 시설물 파손을 예방하고 관로 손상여부를 실시간으로 감지하여 이벤트 발생위치를 관리자에게 알려주여 누수손실을 예방하여 시설물의 수명연장을 도모한다.

• 복식
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• 제56권9호
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• pp.143-156
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• 2006

The purpose of this study is to analyze changes in military uniform design according to the type of war in history and to suggest factors to be considered when designing military uniforms. Military uniform in this study has been limited to uniforms of land active soldiers and not only includes battle dress but also bombproof helmets, combat boots and webbing systems. Western military uniform was investigated starting from World War I focusing on the United States, United Kingdom, Germany and the Soviet Union, and Korean military uniform was analyzed starting from the Korean Day of Independence. Historical research, case studies and in-depth interviews were included in the study. World War I was a trench war. Khaki colors began to be used in battle dress, and steel helmets and gas masks were invented. World War II was a full-stale war. Many kinds of uniform were designed with various environments and roles of soldiers in mind, and camouflage was adopted in military uniform. Modern wars were wars of technique. Strong protectors were invented and diverse camouflages were adopted as rifles became increasingly accurate and biochemical weapons started to be used. Korea referred largely to the uniforms of the United States because it lacked both information on war and the financial power to invest in development of military uniforms. Finally, this study presents 5 factors to be considered when designing military uniforms: protection, camouflage, mobile and utility convenience, compatibility and symbolism. Wars of the future are predicted to be information wars utilizing realtime information collected through computers. Therefore new military uniforms with computers, communication devices and strong protective capacities need to be developed. This study aims to provide a theoretical basis for designing military uniforms of the future.

• 한국정보통신학회논문지
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• 제19권1호
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• pp.119-126
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• 2015

본 논문에서는 항만컨테이너 운영 모니터링 및 계획 시뮬레이션의 결과를 3차원으로 정적 동적 개체를 포함하는 주변 환경의 거동을 시각적으로 표현하고 실제 작업이 이루어지는 애니메이션을 통해 운영모델을 직관적으로 평가가 가능한 시뮬레이션 가시화 시스템을 제안한다. 제안한 항만 시뮬레이션 가시화 시스템(PSVS)은 객체의 상태를 XML기반으로 설계하여 기존의 항만 운영 시뮬레이션(CATOS)과 상호운용성에 있어서 연동성을 극대화하고 실시간으로 대규모 객체에 대한 애니메이션 표현이 가능하도록 구현하였다. 본 논문에서는 PSVS시스템의 설계 방법에 대해서 설명하고 실험을 통해 PSVS의 타당성을 검토하였다.