• 제목/요약/키워드: object study

검색결과 8,190건 처리시간 0.035초

도로 교량의 안전관리 네트워크 구축을 위한 계측자료의 객체 데이터베이스 설계 개념 (A design concept on object database of measurement data for building a safety management network of road bridges)

  • 박상일;안현정;김효진;이상호
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2008년도 정기 학술대회
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    • pp.518-523
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    • 2008
  • In this study, we analyzed applicability of object database, designed the concept model based on object-oriented idea for measurement data management, and applied the design model to object database. The concept model composes three sub models Infrastructure managing information model, Infrastructure measurement data model, and Measurement unit model. The process to expand measurement data of new type was executed easily without changing database schema in object database. The process to expand measurement data of new type was executed easily without changing database schema in object database. Therefore, applicability of new technology to infrastructures for building a safety management network of road bridges could be increased with object database system.

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Non-rigid Object의 추적을 위한 자동화 영역 추출에 관한 연구 (The Study of automatic region segmentation method for Non-rigid Object Tracking)

  • 김경수;정철곤;김중규
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2001년도 하계종합학술대회 논문집(4)
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    • pp.183-186
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    • 2001
  • This paper for the method that automatically extracts moving object of the video image is presented. In order to extract moving object, it is that velocity vectors correspond to each frame of the video image. Using the estimated velocity vector, the position of the object are determined. the value of the coordination of the object is initialized to the seed, and in the image plane, the moving object is automatically segmented by the region growing method and tracked by the range of intensity and information about Position. As the result of an application in sequential images, it is available to extract a moving object.

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계층적 데이터 구조를 이용한 3차원 물체인식에 관한 연구 (A Study on 3-D Object Recognition using Hierarchical Data Structure)

  • 우광방;김영일
    • 대한전자공학회논문지
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    • 제27권6호
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    • pp.851-860
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    • 1990
  • This paper presents a recognition method which interprets 3-D object in terms of several silhouettes of quadtree and octree. Object representation used in object matching should be invariant with respect to locatin and orientation of the object. Generalized octree is projected on to image plane along the principal axes. Regular octree is made from orthogonal directions, but generalized octree is independent to viewing directions. Recognition process is achieved in two-stage matching. The quadtrees and octrees of unknown object with minimum dissimilarities are matched with the quadtrees and octrees of the models. So as to verify efficiency of 3-D object representation and accuracy of object recognition, experiments are performed for 14 different type of geometrical models and its results have been shown.

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분산 컴퓨팅 환경에서 객체 그룹 설계 및 구현에 관한 연구 (A Study on the Object Group Design and Implementation in Distributed Computing)

  • 송기범;이준
    • 한국정보통신학회논문지
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    • 제6권1호
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    • pp.133-139
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    • 2002
  • 분산환경에서 효율적인 분산 서비스를 제공하기 위해 TINA 콘소시엄과 OMG CORBA에서 객체지향기술을 적용한 분산 객체 플랫폼의 제안과 다양한 서비스의 요구사항을 정립하고 있다. 그러나, 어플리케이션의 규모가 점점 커지고 분산화 됨에 따라 객체들간의 서비스 및 관리 인터페이스가 매우 복잡해지고 있다. 이러한 문제들을 해결하기 위해서 새로운 객체그룹 모델의 제안과 객체그룹 하에서 도입될 수 있는 객체 관리 서비스를 위한 요구사항들이 필요하다. 본 논문에서는 TINA에서 제안한 그룹객체 정의를 도입하여 현재 분산 시스템의 표준으로 사용하는 CORBA 기반에서 분산된 객체들을 효율적으로 관리할 수 있는 시스템을 제안한다.

A Study: UML for OOA and OOD

  • Rajagopal, D.;Thilakavalli, K.
    • International Journal of Knowledge Content Development & Technology
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    • 제7권2호
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    • pp.5-20
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    • 2017
  • The notion of object oriented analysis and design in software engineering has many rewards that aid the programmer to have an understanding of and improve the program efficaciously. Object oriented metrics helps rather a lot to a programmer or developer to comprehend and unravel the thing-oriented trouble readily and exactly. Object oriented metrics helps in examining the usefulness of object oriented applied sciences or in simple phrases Object-oriented metrics depict characteristics of object-oriented programming. The intention of this paper is to have an understanding of concerning the UML, Object oriented evaluation and design and the way it plays in UML.

Deep Learning Machine Vision System with High Object Recognition Rate using Multiple-Exposure Image Sensing Method

  • Park, Min-Jun;Kim, Hyeon-June
    • 센서학회지
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    • 제30권2호
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    • pp.76-81
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    • 2021
  • In this study, we propose a machine vision system with a high object recognition rate. By utilizing a multiple-exposure image sensing technique, the proposed deep learning-based machine vision system can cover a wide light intensity range without further learning processes on the various light intensity range. If the proposed machine vision system fails to recognize object features, the system operates in a multiple-exposure sensing mode and detects the target object that is blocked in the near dark or bright region. Furthermore, short- and long-exposure images from the multiple-exposure sensing mode are synthesized to obtain accurate object feature information. That results in the generation of a wide dynamic range of image information. Even with the object recognition resources for the deep learning process with a light intensity range of only 23 dB, the prototype machine vision system with the multiple-exposure imaging method demonstrated an object recognition performance with a light intensity range of up to 96 dB.

평면 뼈대 구조물의 객체지향 자유진동해석 (Object-Oriented Free Vibration Analysis of Plane Flamed Structures)

  • 신영식;최희옥;서진극
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1993년도 봄 학술발표회논문집
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    • pp.61-68
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    • 1993
  • A computer program for free vibration analysis of plane framed structures has been developed by object oriented programming technique using C" language. The object oriented programming concepts such as object, class, method and inheritance are represented. The static and free vibration analyses for framed structures were satisfactorily performed by this program which consists of TOP, VECTOR, MATRIX, STRU, GUI and other classes. Numerical test shows the validity and capability of the present study which can be expandable to develop a general purpose object oriented finite element analysis program of structures ,res ,

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주의력결핍 과잉행동장애 아동 어머니의 대상관계와 부모양육행동 (The Relationship between Object Relations and Parenting Behavior of Mothers of ADHD Children)

  • 손아영;박은진;이대환;최영민;김봉석
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제22권4호
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    • pp.228-235
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    • 2011
  • Objectives : This study was conducted to compare the object relations and parenting behavior of the mothers of children with attention-deficit hyperactivity disorder (ADHD) with that of the mothers with normal children. Methods : In this study, we studied 64 mothers of children who were diagnosed with ADHD and 90 mothers of normal children. The mothers completed the Bell Object Relations Inventory (BORI), the Parenting Behavior Inventory (PBI), the Parenting Stress Index (PSI) and the Parenting Sense of Competence (PSOC) scale. Results : As compared with the mothers of normal children, the mothers of children with ADHD showed significantly different results for the parenting stress and parenting efficacy. For parenting behavior, the mothers of children with ADHD perceived their mothering as being more neglectful. On the other hand, the mothers of the normal control group perceived their mothering as being more affectionate and the fathers as being more reasonable and monitoring. Conclusion : This study suggests there is a significant difference of object relation between the mothers of children with ADHD and the mothers with normal children. The object relation pathology of the mothers of children with ADHD might contribute to impaired parenting behavior. The result of the present study indicate that inadequate grandparental rearing behavior affects the insecure object relation of their child (the mother), and a mother's insecure object relation affects their parental stress and parenting efficacy.

공공가정의 대상범위에 대한 연구 -경영학의 대상범위와의 차별을 위하여- (A Study on the Research-Object of Institutional Household -for Differenciation from the Research-Object of Business Adiministration)

  • 송혜림
    • 가정과삶의질연구
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    • 제15권2호
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    • pp.173-184
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    • 1997
  • This study identifies the research-object of institutional household and differenciates the family resource management perspectives from the business administration perspectives in the area of management study. This study concludes : for the development of the advanced studies on 'institutional household management' in family resource management the theoretical investigations must be accompanied with the practical work for the enforcement of institutional household manager.

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이동 물체 추적을 위한 경계선 추출 (Boundary Line Extract for Moving Object Tracking)

  • 김태식;이주신
    • 전자공학회논문지T
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    • 제35T권2호
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    • pp.28-34
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    • 1998
  • 본 논문에서는 3차원 영상 처리 시스템을 이용한 이동 물체 추적을 위한 경계선 추출 알고리즘을 제시하였다. 이동 물체의 검출은 입력 영상에서 차 영상 기법을 이용하였고, 이동 물체 검출을 위한 검출 윈도우는 처리시간을 줄이기 위하여 4개의 예상영역과 물체영역으로 구성하였으며, 크기는 이동 물체의 크기와 중심 좌표에 대한 예측 계수에 의해 정하였고, 추적 카메라는 직류 모터에 의해 X, Y 방향으로 이동하도록 하였다. 모형 자동차를 이용하여 알고리즘을 수행한 결과, 최대 추적 시간은 2초였고, 추적 에러는 물체 크기의 6% 이하였다.

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