• Journal of the Korean Association of Geographic Information Studies
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• v.8 no.2
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• pp.95-102
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• 2005

Currently, the government has been established GIS DB related to river as a part of the river map digitization projects such as RIMGIS and flood map. This study was aimed to demonstrate the generation of thematic maps related to river space and their management system, the one of the major river thematic maps proposed from the precedent study "Establishment of River Thematic Map Project" in an effort to maximize the utilization of river related database, the major product of the project for digitization of river maps. This study includes amending database model for building river thematic maps. Also, metadata were amended and built for efficient management and distribution of the river related data based on the national standard metadata proposed from "Establishing Standard Metadata" sponsored by National Geography Institute in 2003 for more effective management of river thematic maps. In addition, this study analyzed the method for utilizing existing data from RIMGIS and WAMIS as well as digital topographic maps to produce 25 river thematic maps in accordance of defined building procedure. Management system of the river thematic maps for Kyungan watershed has been generated for effective managing river thematic maps based on the design and pilot generation of river thematic maps, and metadata management function has been added into the management system.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.5 no.1
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• pp.59-64
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• 2011

In this paper, the lumped element model parameter estimation method and its implemented estimation software for fabricated floating mass transducers of IMEHDs have been presented so that the estimated parameter values could be compared with the designed ones and applied to predict the output performance when the transducers were implanted into human ears. The presented method is based on the sequential quadratic programming (SQP) for estimating parameters in the transducer's lumped model and has been implemented by the use of LabVIEW graphical language. Using the implemented estimation software, the accuracy of parameter estimation has been verified and our implemented estimation method has been evaluated by the comparison of the estimated transducer parameter values with the designed ones for a practically fabricated floating mass transducer for IMEHDs.

• KIPS Transactions on Software and Data Engineering
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• v.2 no.8
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• pp.571-578
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• 2013

The IHO S-100 is a standard on the universal hydorgraphic data model for supporting information services that integrate various data in maritime and provide proper information for safety of vessels. The S-100 is used to develop S-10x product specifications which are standards on guideline for creation and delivery of specific data set in maritime. The product specification for feature-based data such as ENC(Electronic Navigational Chart) data includes a feature catalogue that describes characteristics of features in that feature-based data. The feature catalogue is developed by domain experts with knowledge on data of the target domain. However, it is not feasible to develop a feature catalogue according to the XML schema by manual. In the IHO TSMAD committee meeting, needs of developing technology on building feature catalogue has been discussed. Therefore, we present a feature catalogue builder that is a GUI(Graphic User Interface) system supporting domain experts to build feature catalogues in XML. The feature catalogue builder is developed to connect with the FCD(Feature Concept Dictionary) register in the IHO(International Hydrographic Organization) GI(Geographic Information) registry. Also, it supports domain experts to select proper feature items based on the relationships between register items.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.27 no.2
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• pp.235-247
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• 2009

Map is information media for human life. Recently, innovative map making technology has been developed and most updated various data are provided to map users. In consequence, use of maps is rapidly increasing in various applications. One of the examples is car navigation map because navigation maps provide reliable and necessary information with convenient way. Therefore, maps are to be changed to user-oriented from map making-oriented design. The main goal of spatial data infrastructure is to allow various users to access the real world information easily for decision making. However, most of the digital maps are focused on map making aspect such as providing up-to-date data, acquisition of accurate data with state-of-the-art technology, and addition of layers (For example, ortho-images and DEMs). If map data processing tools are to be provided with the digital maps, users could utilize maps for decision making without professional software or knowledge. Therefore, objective of this paper is to propose scheme of the digital map data processing service with application examples.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2017.11a
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• pp.146-148
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• 2017

기술의 발전에 따라 촬영기기 및 영상장비들의 성능이 비약적으로 향상되고, 본격적인 UHD(Ultra High Definition) 시대가 맞이하여 자연스럽게 소비자들은 더 나은 화질을 요구하고 많은 콘텐츠업체들은 초고화질기술을 적용시킨 작품을 제작하고 있다. 또한, 고품질 콘텐츠에 대한 요구 뿐 만 아니라 데이터 관리(Data Management) 및 색보정(Calibration) 등 이와 관련된 기술의 중요도 증가되고 있다. 따라서 본 논문은 DIT(Digital Imaging Technician) 작업을 차량 내에서 할 수 있도록 특수제작 된 차량을 제작함으로써 현장에서 실시간으로 컬러 그레이딩(Color Grading), 데이터 관리(Data Management) 업무를 수행하여 업무 효율성을 높이고 제작편의성을 증대하고자 한다. 컬러 그레이딩과 데이터 관리라는 요소들이 현재 방송분야보다는 영화와 관련한 분야에서 많이 사용되지만 UHD 시대가 열리는 미래의 방송환경에서는 방송에서도 중요한 요소가 되고 있다.

• Journal of Korean Society for Geospatial Information Science
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• v.23 no.2
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• pp.105-111
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• 2015

Domestic 2D maps includes only most up-to-date information at the time of production without historical information. Therefore, it is hard to identify the change history of real world objects. In this research, Spatio-temporal model for 2D map were developed and it's compatibility was verified through the pilot project conducted on the Gwanggyo area of Gyeonggi province. Also, the procedure to generate 2D spatio-temporal database using maps made periodically on the same target area was introduced for showing the possibility of realizing nation wide spatio-temporal 2D map using the national base map updated periodically.

• Broadcasting and Media Magazine
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• v.14 no.3
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• pp.36-46
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• 2009

비디오 서버는 대량의 영상과 음성 데이터를 보호화해서 디지털 포맷으로 저장하고 원하는 즉시 비디오 데이터를 재생 및 전송할 수 있는 컴퓨터 기반 장비를 말한다. 기존 저장 매체인 VTR(Video Tape Recorder) 테이프(Tape)에 녹화되던 영상은 비디오 서버의 HDD(Hard Disk Drive)에 파일로 저장되고 있다. 이러한 형태로 기존 VTR 이 수행하던 녹화, 편집, 송출 등의 역할을 비디오 서버가 파일 기반 제작 시스템으로 대체하고 있다. 즉 테이프리스(Tapeless) 제작환경의 촬영 단계인 녹화부터 송출 단계의 마지막 재생까지 사용되는 장비가 HD 비디오 서버이다. 파일 기반의 IT(Information technology) 제작환경은 제작 프로세스를 효율화하여 생산성을 향상시키고 비용을 절감하며 콘텐츠 재사용을 통한 미디어가치를 높인다. 이러한 장점들 때문에 비디오 서버 사용은 날로 증가되고 있다. 이에 본 논문에서는 비디오 서버 관련 기술에 대해 알아보고 자체 개발한 경험을 바탕으로 HD 비디오 서버 구현 기술을 소개하고자 한다.

• 한국지형공간정보학회:학술대회논문집
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• 2005.08a
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• pp.73-83
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• 2005

This study aims to establish the quality checking factors for the construction process of digital topographic map. Total 17 regulations related to quality of digital topographic map and major aerial survey firms are analyzed in terms of working process, equipments, and accuracy of results. It is standardized the process of making new digital maps using aerial photography, revising existing digital maps, and digitizing paper map. Quality checking factors for the construction process of digital topographic map are also established.

• Proceedings of the Korea Contents Association Conference
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• 2010.05a
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• pp.437-440
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• 2010

동영상, 음악, 카메라영상, 음성 등 다양한 객체를 결합하는 강의 제작기는 강의 콘텐츠 제작에 유용하다. 본 프로그램은 다양한 객체를 결합하여 무 손실 압축 처리한 강의 콘텐츠를 제작한다. 결과물로서 음성/영상/인덱스의 3가지 종류의 파일이 생성된다. 인덱스파일은 영상 정보, 영상 파일 구성정보, 음성정보, 음성파일 구성정보를 가지며 음성파일은 각 객체의 음성만을 interpolation 처리 후 하나의 데이터로서 혼합한 결과물이다. 영상 파일은 영상 정보만을 결합한 뒤 wavelet, motion estimation, 사전코드 방식과 huffmancode 방식을 혼합한 방식을 응용한 무 손실 압축 영상데이터 이다.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.6
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• pp.1277-1284
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• 2023

In this paper, a web page that is easy for consumers to access event products in progress at convenience stores was created. In the production process, static crawling and dynamic crawling, two crawling methods for extracting data from event products, were compared and used. Static crawling is an extraction method of collecting static data from a homepage, and dynamic crawling is a method of collecting data from pages dynamically generated from a web page. Through the comparison of the two crawlings, we studied which crawl method is more effective in extracting event product data. Among them, a web page was created using effective static crawling, and 1+1 and 2+1 products were categorized and a search function was added to create a web page.