GEO-7682 Case Studies of Precise 3D Indoor Spatial Information DB construction of subway stations by using Terrestrial LiDAR Dept. Geoinformatics, The University of Seoul, KOREA Hyewon Yun Contents 1. 2. 3. 4. 5. Data Construction Procedures Site Survey and Investigation Data Processing Accuracy Verification Demonstration GEO-7682 1. Data Construction Procedures Ground Control Point Survey Site Survey and Investigation Indoor Laser Survey Construction of 3D Spatial Information Construction of 3D Indoor Spatial Information Assessment GEO-7682 1. Data Construction Procedures Indoor Laser Survey Work flow of indoor spatial information positioning GEO-7682 1. Data Construction Procedures Using Equipment Trimble TX5 Using Equipment Leica C10 GEO-7682 2. Site Survey and Investigation Target area Seoul City Hall : National Control Points Construction object of indoor spatial information(daum map) Seoul City Hall Subway Station (1 line-2 line) National Geographic Information Institute (Belong to Ministry of Land, Infrastructure, and Transport) GEO-7682 2. Site Survey and Investigation Control Point Used in studies Exit 5 (Left) Exit 5 (Right) Exit 12 (Left) Exit 12 (Right) Precise surveying Using National Control Points GEO-7682 2. Site Survey and Investigation Exit 5 (Left) Exit 5 (Right) Exit 12 (Left) Exit 12 (Right) Indoor Laser Survey GEO-7682 2. Site Survey and Investigation Precise surveying Using Laser Survey GEO-7682 2. Site Survey and Investigation Survey of POI(point of interest) 1.POI acquirement 2.Input POI data 3.Add omitted data Giving coordinate GEO-7682 2. Site Survey and Investigation Survey of Properties for Braille Block - orientation - location - logic Application of Braille Block - navigation - location correction - audio guidance Survey of POI (Indoor Spatial Information) GEO-7682 2. Site Survey and Investigation Terrestrial laser scanning Texture image Scanning data processing Cartography(3D Vector) Modeling (method 2) Modeling (method 3) Mapping Texture image editing and modification Modeling Construction of 3D Indoor Spatial Information GEO-7682 3. Data Processing Indoor Laser Survey (Raw Data) Indoor Laser Survey Indoor Laser Survey (Processing Data) Precise surveying Using Laser Survey GEO-7682 3. Data Processing Produce a Laser frame Produce a Laser frame (completion) Precise surveying Using Laser Survey GEO-7682 3. Data Processing Laser point matching Model extraction using laser point Produce a Object Model GEO-7682 3. Data Processing Geo-data 3D Vector 3D Modeling Produce a Object Model GEO-7682 3. Data Processing Braille Block Matching Braille Block Structuralization Produce a Object Model GEO-7682 3. Data Processing Laser Point of Facility 3D Modeling of Facility Produce a Object Model GEO-7682 3. Data Processing 3D Object Model 3D Object Model (Zoom) Produce a Object Model GEO-7682 4. Accuracy Verification Survey values compared with the Indoor Spatial information and Geodetic Control Point Indoor Spatial information Survey values Comparison Location X-axis : Maximum 0.04m Y-axis : Location Accuracy Verification of Within 0.06m = This is contained within the accuracy range of the 1:500 digital map results. Comparing Accuracy Using Geodetic Control Point GEO-7682 5. Demonstration GEO-7682 E-Mail : [email protected] (Dr. Inhoon jung) THANK YOU
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