• Title/Summary/Keyword: Geographic mapping

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Establishment of Point Cloud Location Accuracy Evaluation Facility for Car-mounted Mobile Mapping System for Mapping of High Definition Road Maps (정밀도로지도 제작을 위한 이동식차량측량시스템(MMS) 점군 위치정확도 성능평가 시설 구축)

  • Oh, Yoon Seuk;Kwon, Young Sam;Park, Il Suk;Hong, Seung Hwan;Lee, Ha Jun;Lee, Tae Kyeong;Chang, Soo Young
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.38 no.4
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    • pp.383-390
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    • 2020
  • Car-mounted MMS (Mobile Mapping System) is the most effective tool for mapping of high definition road maps(HD Map). The MMS is composed of various sensor combinations, and the manufacturing methods and processing software are different for each manufacturer, performance cannot be predicted only by the specifications of the parts. Therefore, it is necessary to judge whether each equipment is suitable for mapping through performance evaluation, and facilities for periodic performance evaluation. In this paper, we explained the MMS performance evaluation facilities built at the SOC Evaluation Research Center of Korea Institute of Civil Engineering and Building Technology and analyzed the conditions that the evaluation facilities should have through a literature survey and field tests.

A Study of Realtime Geographic Information Transmission for the Mobile Mapping System (모바일매핑시스템에서의 실시간 지리정보 전송을 위한 연구)

  • Bae Sang-Keun;Park Young-Moo;Kim Byung-Guk
    • Spatial Information Research
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    • v.13 no.1 s.32
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    • pp.91-101
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    • 2005
  • The Mobile Mapping System using the vehicle equipped the GPS, IMU, CCD Cameras is the effective system for the management of the road facilities, update of the digital map, and etc. If the geographic information which is acquired by the Mobile mapping System can be transmitted in realtime, users can process what they want using the latest data. In this research, the effective method was suggested for the transmission of the geographic information acquired by mobile mapping System such as position data, attitude data, and image data in the wireless internet environment in realtime.

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Development of a GML 3.0 Encoding System Using Mapping Rules

  • Lee Yong Soo;Kim Dong O;Hong Dong Sook;Han Ki Joon
    • Proceedings of the IEEK Conference
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    • 2004.08c
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    • pp.723-728
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    • 2004
  • Recently, because of the extensive use of geographic information in the various fields, the requirement for the easy circulation and utilization of the various geographic information among the individuals, organizations, societies and countries is raised. In order to support the interoperability of the heterogeneous geographic information in the various fields, OGC(Open GIS Consortium) proposed the GML(Geography Markup Language) specification that defines the XML encoding rule about the heterogeneous geographic information. In addition, ISO/TC 211 adopted the GML specification to make it as the international standard. Therefore, in this paper, we first analyzed the GML 3.0 specification in detail that can support the interoperability of the heterogeneous geographic information. And then we suggested and applied the mapping rule that define the encoding method to improve the encoding process easily and efficiently. Finally, we designed and implemented the GML 3.0 encoding system using the mapping rule to encode the geographic information that was constructed in spatial databases into the GML 3.0 document. Especially, we used ZEUS as a spatial database system to test our encoding system in this paper.

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The Integration of GIS with LANDSAT TM Data for Groundwater Potential Area Mapping(II) - Suitablility Mapping for Groundwater Exploration Using the Geographic Infornation System - (지하수 부존 가능지역 추출을 위한 LANDSAT TM 자료와 GIS의 통합(II) - 지하정보시스템에 의한 지하수 부존 가능성의 suitability map 작성 -)

  • 지광훈
    • Korean Journal of Remote Sensing
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    • v.8 no.1
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    • pp.45-58
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    • 1992
  • The study is aimed at extraction of the groundwater potential area using the Geographic Information System. The study was to develop techniques of the thematic mapping such as slope map, geologic map, soil map and suitability mapping for grotential area. There thematic maps were combined and weightages were given to produce suitability map for groundwater potential area. The results of this study are as follows. 1) The 78% of cased wells have releation to lineament coincided with the appraisement point of the suitability map. 2) The 9 sites of 18 test sites produced over than 200 m$^3$/day. The with the highest appraisement point of the suitability map. 3) Suitability map is effective to extract groundwater potential area which can not be extracted from the remotely sensed data. The developed suitability mapping techniques are expected to do as an important tool for exploration and development of the newable and unnewable resources such as groundwater, petroleum etc.

A Study on Web-based Mobile Mapping System Using Real-Time GPS/INS System (실시간 GPS/INS 시스템을 이용한 웹기반 모바일 매핑시스템 연구)

  • 이종기;김병국;권재현
    • Spatial Information Research
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    • v.11 no.3
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    • pp.291-299
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    • 2003
  • The Mobile Mapping System collects geographic information through mounted sensors such as a pair of CCD camera, CPS, IMU(Inertial Measurement Unit) and Odometer at regular distance or time interval. The advantage of such system is to easy identification of positions and geographic informations of mobile objects in real time. Among many wireless communication ways for real-time positions and geographic information data from the mobile mapping system to the user such as PDA, wireless modem, cellophane, and web, the web is considered to be more stabile, effect and economic than any other methods. In this paper, a study on the web-based real-time mobile mapping platform to identify the user position is presented using the real-time NovAtel BDS.

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SVG를 이용한 지리정보 활용에 대한 연구

  • 김희원
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2003.11a
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    • pp.15-20
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    • 2003
  • As an emerging technology in Computer graphics areas, SVG(Scalable Vector Graphic) makes it possible to make use of Vector graphics for servicing maps in basic internet browsing environment. SVG based thematic map Internet GIS system implemented by this research is free of special server side GIS mapping system and client side extra technology. It provides high-quality vector map which can interact with the user, template map which can be used for other purpose, glance the future map based on Webservices technologies. Many good characteristics of SVG in mapping at computer screen and reusability of SVG document provide new era of visualzation of geographic information.

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Development of a GML 3.0 Encoding System Using Mapping Rules (매핑 규칙을 활용한 GML 3.0 엔코딩 시스템의 개발)

  • Lee, Yong-Soo;Kim, Dong-O;Son, Hoon-Soo;Han, Ki-Joon
    • Journal of Korea Spatial Information System Society
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    • v.5 no.1 s.9
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    • pp.27-38
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    • 2003
  • Recently, because of the extensive use of geographic information in the various fields, the requirement for the easy circulation and utilization of the various geographic information among the individuals, organizations, societies and countries is raised. In order to support the interoperability of the heterogeneous geographic information in the various fields, OGC(Open GIS Consortium) proposed the GML(Geography Markup Language) specification that defines the XML encoding rule about the heterogeneous geographic information. In addition, ISO/TC 211 adopted the GML specification to make it as the international standard. Therefore, in this paper we first analyzed the GML 3.0 specification in detail that can support the interoperability of the heterogeneous geographic information. And then we suggested and applied the mapping rule that define the encoding method to improve the encoding process easily and efficiently. Finally we designed and implemented the GML 3.0 encoding system using the mapping rule to encode the geographic information that was constructed in spatial databases into the GML 3.0 document. Especially, we used ZEUS as a spatial database system to test our encoding system in this paper.

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Standardization and Application of Geographic Survey Datas in National Digital Map (수치지도 지리조사 자료의 표준화 및 활용)

  • Lee, Hyun Jik;Ru, Ji Ho;Lee, Hyuck Ho
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.3
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    • pp.29-40
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    • 2012
  • The method regarding obtaining various kinds of attribute data of spatial information, including that of digital map, is normally restricted to Geographic survey that deals with in-field surveys. Geographic surveying for drawing digital map, however, require much effort due to the fact that a surveyor has to characterize geographic features individually in the field. Not only does the Geographic survey cover large area, but also its need for manual drawing and surveying using Draft map makes it more expensive and time-consuming. Though some recent Geographic surveys take advantage of MMS(Mobile Mapping System) to collect computerized information, there are inevitable limits in creating digital map with such data. This research will analyze the problems in current Geographic surveys and suggest adequate methods and standards for Geographic surveys by researching the methods of domestic/international service organizations that deal with establishing spatial information. This study therefore will aim to enhance the efficiency of creating digital map and Geographic survey, which would ultimately maximize the applicability of pan-national digital map by improving reliability of digital map and upgrading the utilizability of Geographic survey data.

The effect of Community Mapping based on Volunteered Geographic Information System on Smoking Prevention among Female Middle School Students (일개 여자중학교의 흡연예방을 위한 참여형 GIS(Geographic Information System) 기반 커뮤니티 맵핑 활동의 효과)

  • Son, Hyunmi;Jung, Miyoung;Hong, Yunkyung
    • Journal of the Korean Society of School Health
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    • v.29 no.3
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    • pp.286-298
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    • 2016
  • Purpose: The aim of this study was to identify the effects of community mapping based on volunteered Geographic Information System on smoking prevention among female middle school students. Methods: This study used a triangulation method which integrated quantitative data from a "pre-post" study on a nonequivalent control group and qualitative data from focus group interviews. Data was collected from 4 August 2015 to 10 January 2016. The experimental group (n=24) participated in community mapping along with education on smoking prevention and the control group (n=28) participated only in routine education. Both groups were measured on their knowledge and attitude related to smoking prevention through self-report questionnaires. The quantitative data was analyzed by descriptive statistics, $x^2$ analysis, and t-test using SPSS 23.0. The qualitative data was collected through focus group interviews to investigate the social-environmental effect of smoking prevention. Results: Knowledge related to smoking prevention was significantly higher (t=2.591, p=.013) in the experimental group than the control group. But attitude related to smoking prevention did not show significant differences between the two groups. When asked about their experiences of the community mapping program, it turned out to be a process where they could learn practical knowledge related to smoking prevention and experience their individual practices manifested as collective intelligence while working together with community members. The study found that community mapping had an effect on smoking prevention from a social and environmental aspect. Conclusion: To be more effective, school education on smoking prevention should be provided in connection with the community. It is also desirable to provide an opportunity where adolescents can experience discovering and solving practical problems along with their own community.