• Title/Summary/Keyword: Data Archiving

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Implement for Mobile Robot using the Ultrasonic sensors and the DSP Image Processing (DSP 영상처리와 초음파 센서를 이용한 이동 로봇 구현)

  • 김용준;문철홍
    • Proceedings of the IEEK Conference
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    • 2000.06d
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    • pp.151-154
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    • 2000
  • Standard of implementing a robot is Man, so in many field, Many studies are processing to archive a robot, very similar to human being. This paper, based on the theory of man, implemented on the model of parallelism sense and visual information, which is needed when it's moving. Introduced robot uses CCD and designed Image Processing Board for the purpose of archiving vision data. To keep parallel condition, This use ultrasonic sensors for auto-mobile.

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Medical Image Data Compression Using a Variable Block Size Vector Quantization (가변 블록 벡터양자화를 이용한 의용영상 데타터 압축)

  • 박종규;정회룡
    • Journal of Biomedical Engineering Research
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    • v.10 no.2
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    • pp.173-178
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    • 1989
  • A vector quantization technique using a variable block size was applied to image compression of digitized X -ray films. Whether the size of VQ block should be subdivided or not is determined experimentally by the threshold value. The simulation result shows that the performance of the proposed vector quantizer is suitable for the medical image coding, which is applicable to PACS( Picture Archiving and Communication System).

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DESIGN OF DATA REDUCTION SYSTEM AND CONSTRUCTION OF PHOTOMETRIC DATABASE FOR KMTNet (KMTNet 자료처리 시스템 설계와 측광데이터베이스 구축)

  • Kim, D.J.;Lee, C.U.;Kim, S.L.;Park, B.G.;Lee, J.W.
    • Publications of The Korean Astronomical Society
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    • v.24 no.1
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    • pp.83-91
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    • 2009
  • We have designed data processing server system to include data archiving, photometric processing and light curve analysis for KMTNet (Korea Microlensing Telescope Network). Outputs of each process are reported to the main photometric database, which manages the whole processing steps and archives the photometric results. The database is developed using ORACLE 11g Release 2 engine. It allows to select objects applying any set of criteria such as RA/DEC coordinate and Star ID, etc. We tested the performance of the database using the OGLE photometric data. The searching time for querying 70,000,000 records was under 1 second. The database is fully accessed using query forms via web page.

Propagation of Engineering Changes for Supporting Consistent Product Data View (일관된 제품자료관점을 지원하는 설계변경 전달에 관한 연구)

  • 도남철
    • Korean Journal of Computational Design and Engineering
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    • v.8 no.2
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    • pp.90-100
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    • 2003
  • Engineering change (EC) objects are the data structure and related operations that can support applications for EC procedures or processes. Their functionalities include controlling management data, specifying related product structure, and archiving a history of product structure changes for EC management. In this paper we introduce a systematic approach to support the propagation of changes between different product structure views using the history of structure changes in EC objects. The change propagations supported by EC objects enable designers to maintain the consistency of multiple product structure views for engineering, manufacturing or even customer support applications. This paper also includes EC examples and experimental implementations for the proposed EC objects.

Development of High Speed Satellite Data Acquisition System

  • Choi, Wook-Hyun;Park, Sang-Jin;Seo, In-Seok;Park, Won-Kyu
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.280-282
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    • 2003
  • The downlink data rates of the space-born payloads such as high-resolution optical cameras, synthetic aperture radars (SAR) and hyper-spectral sensors are being rapidly increased. For example, the image transmission rates of KOMPSAT-2 MSC(Multi-Spectral Camera) is 320Mbps even if on-board image compression scheme is used.[1] In the near future, the data rates are expected to be a level 500${\sim}$600Mbps because the required resolution will be higher and the swath width will be increased. This paper describes many techniques they enable 500Mbps data receiving and archiving system.

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A Balance of Primary and Secondary Values: Exploring a Digital Legacy

  • Cushing, Amber L.
    • International Journal of Knowledge Content Development & Technology
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    • v.3 no.2
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    • pp.67-94
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    • 2013
  • This exploratory research explores the concept of a digital legacy as a general concept and as a collection of digital possessions with unique characteristics. The results reported in this article are part of a larger study. In Cushing (2013), the author identified the characteristics of a digital possession. In this study, these characteristics of a digital possession were utilized to explore how the characteristics of several digital possessions could form a collection, or a digital legacy. In addition to being explored as a collection of digital possessions, data was collected about the general concept of a digital legacy. In part I of the study, 23 participants from three age groups were interviewed about their general concept of a digital legacy. Five general characteristics describing a digital legacy were identified. In part II of the study, interview data from Cushing (2013) was used to create statements describing digital possessions. The statements were classified utilizing the archival concept of primary and secondary values, as well as the consumer behavior concepts of self extension to possessions and possession attachment. Primary value refers to the purpose for which the item was created, while secondary value refers to an additional value that the participants can perceive the item to hold, such as a perception that an item can represent one's identity. Using standard Q method procedure, 48 participants were directed to rank their agreement with 60 statements (written on cards), along a distribution of -5 to +5, according to the characteristics of the digital possession they would most like to maintain for a digital legacy. The ranked statements were analyzed using Q factor analysis, in order to perceive the most common statements associated with maintaining digital possessions for a digital legacy. Q method results suggested that most individuals described the digital possessions they wanted to maintain for a digital legacy using various combinations of characteristics associated with primary and secondary values. This suggests that while some participants will respond to personal archiving based on the concept of preserving identity (a perceived secondary value), this will not appeal to everyone. Information professional could consider this difference in appeal when marketing personal archiving assistance to patrons.

디지탈 X선 촬영술의 기술 발전과 전망

  • 민병구
    • 전기의세계
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    • v.34 no.9
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    • pp.548-552
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    • 1985
  • 서울대학교 병원에서는 약2년간의 이분야에 대한 기초 및 임상연구 결과를 토대로 하여 D.S.R.System을 개발하고 있다. 현재 개발하고 있는 Systme은 다음과 같다. 1) X선 발생장치 및 Control부분 2) 산란효과 제거를 위한 fore-slit 및 after-slit과 구동장치 3) X선을 광신호로 변환하기 위한 rare earth screen과 광신호를 전기적인 신호로 변환시키기 위한 photo-diode array detector의 결합체, 4) data 수집부분, 증폭장치와 A/D변환기, 고속 data 저장용 기억장치 부분 5) data 처리와 display를 위한 Bit-slice processor 5) Picture Archiving and Communication Systems (PACS) 이러한 부분 이외에 SNR을 향상시키고 좁은 부위의 region of interest를 보다 정확하게 관찰하기 위해서 511p/mm의 고밀도 선형검출기를 병행으로 사용하고 있다. 이 선형검출기를 이용하여 일부의 영상을 관찰하여 그 결과를 Wiener filter 등의 방법의 매개변수 선정에 이용하여 전체적인 영상의 질을 향상시키고자 하는 것이다.

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A Study on the Development of Clinical Workstation (임상용 워크스테이션의 개발에 관한 연구)

  • Park, Kwang-Seok;Lee, Tae-Su;Min, Byeong-Gu
    • Journal of Biomedical Engineering Research
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    • v.11 no.1
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    • pp.141-146
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    • 1990
  • A clinical workstation has been developed for the use in clinical ward. This system is connected to the Picture Archiving and Communication System previously installed. It provides the capabilities of image display, image processing, diagnostic report review, clinical lab data review and analytic diagrams presentation for the hospitalized patients in clinical ward. The performances of this system were evaluated during the 9 months. These results show typical aspects of clinical patterns in data transmissions, image studies and clinical lab data studies. These typical aspects should be counted in the further development of workstation for the clinical use.

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DEVELOPMENT OF MTSAT DATA PROCESSING, DISTRIBUTION AND VISUALIZATION SYSTEM ON WWW

  • Nemoto, Toshihiro;Kaneko, Takayuki;Takeuchi, Wataru
    • Proceedings of the KSRS Conference
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    • 2007.10a
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    • pp.317-320
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    • 2007
  • This research focuses on a network based data distribution and visualization system of Multi-functional Tran-port SATellite (MTSAT). Institute of Industrial Science (IIS) and Institute of Earthquake Research Institute (ERI) both at University of Tokyo have been receiving, processing, archiving and distributing of MTSAT imagery with a direct receiving of High Rate Information Transmit (HRIT) since October 2006. A software package, mtsatgeo, is developed including radiometric correction, geometric correction and spatial subset, and they are available on a web-based data distribution and processing service accessed at http://webgms.iis.u-tokyo.ac.jp/.

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Determining the gaps in agricultural information, such as crop phonology, crop moisture status, and drought indices, to improve agrometeorological analyses for agriculture (농업기상분석 향상을 위한 농업정보간 격차 도출)

  • Stone, Roger-C;Peter Hayman;Holger Meinke
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.6 no.2
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    • pp.94-106
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    • 2004
  • Determining those gaps in agricultural and other information to improve agrometeorological analyses for agriculture is a large task. The effective integration of appropriate data systems, including remote sensing systems, with agricultural systems modelling capability is described as a worthy outcome in this endeavour. Data issues, including those associated with data length, quality, maintenance, and archiving remain serious issues to be addressed. The role of remote sensing and geographic information systems in agrometeorology is important and is explored here. The value of simulation models to provide the synthesis for future agrometeorological requirements is further elucidated.