2 nd Japan and Republic of Korea LiDAR Survey Symposium

Transcription

1 2 nd Japan and Republic of Korea LiDAR Survey Symposium 2010 年 9 月 20 日 Prof. Woosug Cho wcho@inha.ac.kr Spacematics Lab Department of Civil Engineering Inha University

2 Presentation on Current Status in LiDAR survey LiDAR Technology Development in Korea LiDAR Mapping in Korea

3 Current Status in LiDAR survey

4 LiDAR Technology Matured Not much technological breakthroughs, but incremental improvements Full waveform & Dual frequency Algorithm & Software GPS & INS

5 System Diversity Spaceborne Airborne Groundborne Mobile

6 Application Diversity Base mapping for GIS Engineering design Road surveying Pipeline surveying Transmission line surveying Railroad surveying Environmental studies Flood control Land development Coastal Applications Transport Infrastructure Architectural & Buildings Heritage and Archaeology Urban Mapping Overhead Line Surveys Vegetation Mapping Service Infrastructure Topographical Surveying

7 LiDAR Technology Development in Korea

8 Korean Land Spatialization Group Government MLTM R&D Steering & Evaluation Committee KICTEP R&D Project Board (Cooperated Institute) Program steering committee KLSG INHA University Executive Office Research Integrity Center Evaluation Committee Industrialization Promotion Committee Project I Project II Project III Project IV Project V ( 5 Core Projects of KLSG)

9 Korean Land Spatialization Program Vision Innovation to Land Spatialization for Ubiquitous Korea through ubiquitous GIS technology Missions Establishment of a Nation s growth engine from u-gis Promotion of GIS Industry Construction of a world-best GIS Testbed Program Program Period : Nov April 2012 Budget: $ 130 million (funded from MLTM) $ 50 million (funded from business sector) + ITUS building(int Testbed of U-Space) Inha U. 5 Core Projects Participants: 61 universities, 91 companies, 28 research centers, 17 international organizations

10 u-gis Core Projects I. Geospatial Infrastructure II. Land Monitoring KLSG 5 u-gis Projects III. Urban Facility Management V. u-gis SW Technology IV. Construction Technology Innovation

11 Land Monitoring Goal : Real-time Land Monitoring Research Issues Space/Aerial/Terrestrial monitoring technologies Integrated monitoring technologies Effects Effective management of land related disasters Realization of real-time land monitoring Participants 22 universities, 15 companies, 9 research institutes 6 international organizations

12 Space-based Monitoring Land Monitoring Space-based Monitoring Integrated Monitoring In-situ Monitoring Real-time Monitoring from Space (UAV)

13 Space-based Monitoring Change Detection Decision Support Multi-Resolution Hyper-spectral Land Information Extraction Real-Time Continuous/Periodic Monitoring TEST BED Construction SAR Airborne Lidar

14 LiDAR Technology Development

15 Large Volume LiDAR data Viewer 2 Strip data with more than 100 million points (32bit)

16 Voxel-based Classification

17 Automatic 3D Building Modeling

18 Automatic Tree Modeling Airborne Data Tree detection

19 LiDAR mapping in Korea

20 지상기준점 Pilot Project in LiDAR Mapping Date: LiDAR System: Optech1020 Target Area: Bundang City, 8.8 km2 Flying Height: 800m Point density: 2pts/m 2 Target 측량대상지역 Area

21 Digital Camera & LiDAR System As of 2009 Company Digital Camera Airborne LiDAR Model Manufature Model Manufacture Chung-Ang ADS-40, ADS-80 Leica ALS-50 Leica Hanjin ADS-80 Leica Optech 3070 Optech Saehan DMC Z/I Imaging Gemini-167 Optech Samah UltraCam X 2 UltraCam XP 1 MicroSoft PanAsia DMC Z/I Imaging ALS-40 Optech GIT ADS-80 Leica ALS50-Ⅱ Leica Saehan Geotech DMC Z/I Imaging ALS-60 Leica Shinhan UltraCam XP MicroSoft ALS-50 Leica Asia DMC Z/I Imaging ALS-60 Leica Jeil ADS-40 Leica ALS-60 Leica

22 LiDAR Mapping Projects In most cases, topographic mapping DEM & Contour Line generation (1:5,000) 3D Building modeling with 2D digital map In some cases, coastal line mapping and forestry application

23 Orthoimage & DEM generation LiDAR Year GSD12cm / DEM 1m GSD40cm / DEM 1m DEM 5m City Area( km2 ) City Area( km2 ) City Area( km2 ) , , , , , , ,892 Total 17 12, , ,712

24 Airborne LiDAR Survey Regulation Airborne LiDAR Survey Regulation enacted USA, Japan, Australia, EU regulation adopted DEM 1m DEM 5m Point Density(/ m2 ) 2.5 pts 0.5 pts Accurary DEM 1m DEM 5m Planimetry (RMSE) H (flying height) / 1,000 Height RMSE 0.5m 1.0m Maximum 0.75m 1.5m

25 Automatic Check Software for Airborne LiDAR Survey All of deliverables are identified in regulation Raw data, DSM, DEM, Shade Map Point density, flying height, strip overlap, omission ratio Control and check point accuracy Quality check for TIN, DEM

26 National Plan for Airborne LiDAR & Orthoimage Entire nation covered in every 10 years In next 4 years, the entire nation covered by airborne LiDAR survey according to current regulation Orthoimages cover the entire nation every 2 years Every year, digital aerial image cover the half of entire nation with regulation newly enacted this year

27 Thanks