• 제목/요약/키워드: Digital vision system

검색결과 280건 처리시간 0.029초

디지탈 신호처리기를 이용한 원자로 증기발생기 검사용 실시간 비젼시스템 개발 (Real Time Vision System for the Test of Steam Generator in Nuclear Power Plants Using Digital Signal Processors)

  • 왕한흥;한성현
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 1996년도 추계학술대회 논문집
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    • pp.469-473
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    • 1996
  • In this paper, it is proposed a new approach to the development of the automatic vision system to e famine and repair the steam generator tubes at remote distance. In nuclear power plants, workers are reluctant of works in steam generator because of the high radiation environment and limited working space. It is strongly recommended that the examination and maintenance works be done by an automatic system for the protection of the operator from the radiation exposure. Digital signal processors are used it, implementing real time recognition and examination of steam generator tubes in the proposed vision system. Performance of proposed digital vision system is illustrated by experiment for similar steam generator model.

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퍼지 소속 함수에 기초한 원전 증기발생기 검사용 실시간 비젼시스템 (Real Time Vision System for the Test of Steam Generator in Nuclear Power Plants Based on Fuzzy Membership Function)

  • 왕한흥
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 1996년도 추계학술대회 논문
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    • pp.107-112
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    • 1996
  • In this paper it is proposed a new approach to the development of the automatic vision system to examine and repair the steam generator tubes at remote distance. In nuclear power plants workers are reluctant of works in steam generator because of the high radiation environment and limited working space. It is strongly recommended that the examination and maintenance works be done by an automatic system for the protection of the operator from the radiation exposure. Digital signal processors are used in implementing real time recognition and examination of steam generator tubes in the preposed vision system, Performance of proposed digital vision system is illustrated by experiment for similar steam generator model.

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터널 막장면 고해상도 DEM(Digital Elevation Model) 생성에 관한 연구 (A Study on Developing a High-Resolution Digital Elevation Model (DEM) of a Tunnel Face)

  • 김광염;김창용;백승한;홍성완;이승도
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2006년도 춘계 학술발표회 논문집
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    • pp.931-938
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    • 2006
  • Using high resolution stereoscopic imaging system three digital elevation model of tunnel face is acquired. The images oriented within a given tunnel coordinate system are brought into a stereoscopic vision system enabling three dimensional inspection and evaluation. The possibilities for the prediction ahead and outside of tunnel face have been improved by the digital vision system with 3D model. Interpolated image structures of rock mass between subsequent stereo images will enable to model the rock mass surrounding the opening within a short time at site. The models shall be used as input to numerical simulations on site, comparison of expected and encountered geological conditions, and for the interpretation of geotechnical monitoring results.

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원전 증기 발생기 세관 검사용 비젼시스템 개발에 관한 연구 (A study on development of a vision system for the test of steam generator holes in nuclear power plants)

  • 왕한홍;김종수;한성현;심상한
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1996년도 한국자동제어학술회의논문집(국내학술편); 포항공과대학교, 포항; 24-26 Oct. 1996
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    • pp.101-104
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    • 1996
  • In nuclear power plants, workers are reluctant of works in steam generator because of the high radiation environment and limited working space. It is strongly recommended that the examination and maintenance works be done by an automatic system for the protection of the operator from the radiation exposure. In this paper, it is proposed a new approach to the development of the automatic vision system to examine and repair the steam generator tubes at remote distance. Digital signal processors are used in implementing real time recognition and examination of steam generator holes in the proposed vision system. Performance of proposed digital vision system is illustrated by experiment for similar steam generator model.

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원자력발전소 증기 발생기의 자동검사 및 수리를 위한 비젼시스템 설계 (Vision System Design for Automatic Test and Repair of Steam Generator Holes in Nuclear Power Plants)

  • 한성현
    • 한국정밀공학회지
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    • 제15권6호
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    • pp.5-14
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    • 1998
  • In this paper we propose a new approach to the development of the automatic vision system to examine and repair the steam generator tubes at remote distance. In nuclear power plants, workers are reluctant of works in steam generator because of the high radiation environment and limited working space. It is strongly recommended that the examination and maintenance works be done by an automatic system for the protection of the operator from the radiation exposure. Digital signal processors are used in implementing real time recognition and examination of steam generator tubes in the proposed vision system. Performance of proposed digital vision system is illustrated by simulation and experiment for similar steam generator model.

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원전 스팀 제너레이터 세관 자동검사용 비젼시스템 설계에 관한 연구 (A Study on Vision System Design for Automatic Inspection of Steam Generator in Nuclear Power Plants)

  • 한성현;서운학;천영신;이만형
    • 제어로봇시스템학회논문지
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    • 제4권5호
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    • pp.658-665
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    • 1998
  • In this paper, we propose a new approach to the development of the automatic vision system to examine and repair the steam generator tubes at remote distance. In nuclear power plants, workers are reluctant of works in steam generator because of the high radiation environment and limited working space. It is strongly recommended that the examination and maintenance works be done by an automatic system for the protection of the operator from the radiation exposure. Digital signal processors are used in implementing real time recognition and examination of steam generator tubes in the proposed vision system. Performance of the proposed digital vision system is illustrated by simulation and experiment for similar steam generator model.

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원전 스팀제너레이터 세관 자동검사용 로봇 비젼시스템 설계에 관한 연구 (A Study on Vision System Design for Automatic Inspection of Steam Generator in Nuclear Power Plants)

  • 서운학
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 1999년도 추계학술대회 논문집 - 한국공작기계학회
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    • pp.571-578
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    • 1999
  • In this paper, we propose a new approach to the development of the automatic vision system to examine and repair the steam generator tubes at remote distance. In nuclear power plants, workers are reluctant of works in steam generator because of the high radiation environment and limited working space. It is strongly recommended that the examination and maintenance works be done by an automatic system for the protection of the operator from the radiation exposure. Digital signal processors are used in implementing real time recognition and examination of steam generator tubes in the proposed vision system. Performance of proposed digital vision system is illustrated by simulation and experiment for similar steam generator model.

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원자력 발전소 스팀제너레이터의 자동검사를 위한 지능형 로봇 비젼 시스템 설계 (Design of Intelligent Robot Vision System for Automatic Inspection of Steam Generator of Nuclear Plant)

  • 한성현
    • 한국생산제조학회지
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    • 제9권6호
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    • pp.19-33
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    • 2000
  • In this paper, we propose anew approach to the development of the automatic vision system to examine and repair the steam generator tubes at remote distance. In nuclear power plants, workers are reluctant of works in steam generator because of the high radiation environment and limited working space. It is strongly recommended that the examination and maintenance works be done by an automatic system for the protection of the operator from the radiation exposure. Digital signal processors are used in implementing real time recognition and examination of steam generator tubes in the proposed vision system. Performance of proposed digital vision system is illustrated by simulation and experiment for similar steam generator model.

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Multi-point displacement monitoring of bridges using a vision-based approach

  • Ye, X.W.;Yi, Ting-Hua;Dong, C.Z.;Liu, T.;Bai, H.
    • Wind and Structures
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    • 제20권2호
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    • pp.315-326
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    • 2015
  • To overcome the drawbacks of the traditional contact-type sensor for structural displacement measurement, the vision-based technology with the aid of the digital image processing algorithm has received increasing concerns from the community of structural health monitoring (SHM). The advanced vision-based system has been widely used to measure the structural displacement of civil engineering structures due to its overwhelming merits of non-contact, long-distance, and high-resolution. However, seldom currently-available vision-based systems are capable of realizing the synchronous structural displacement measurement for multiple points on the investigated structure. In this paper, the method for vision-based multi-point structural displacement measurement is presented. A series of moving loading experiments on a scale arch bridge model are carried out to validate the accuracy and reliability of the vision-based system for multi-point structural displacement measurement. The structural displacements of five points on the bridge deck are measured by the vision-based system and compared with those obtained by the linear variable differential transformer (LVDT). The comparative study demonstrates that the vision-based system is deemed to be an effective and reliable means for multi-point structural displacement measurement.

컴퓨터 비전 기술을 활용한 관객의 움직임과 상호작용이 가능한 실시간 파티클 아트 (Real-time Interactive Particle-art with Human Motion Based on Computer Vision Techniques)

  • 조익현;박거태;정순기
    • 한국멀티미디어학회논문지
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    • 제21권1호
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    • pp.51-60
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    • 2018
  • We present a real-time interactive particle-art with human motion based on computer vision techniques. We used computer vision techniques to reduce the number of equipments that required for media art appreciations. We analyze pros and cons of various computer vision methods that can adapted to interactive digital media art. In our system, background subtraction is applied to search an audience. The audience image is changed into particles with grid cells. Optical flow is used to detect the motion of the audience and create particle effects. Also we define a virtual button for interaction. This paper introduces a series of computer vision modules to build the interactive digital media art contents which can be easily configurated with a camera sensor.