6dd017c06e23c24a80f66c049440a5b2.ppt
- Количество слайдов: 38
Advances in Asset Inventory Integrating Spatial Video & Lidar Compass’ 09 Dublin - June 25 th 2009
The Group Together with Spot Image, forms the Earth Observation division of Astrium Services European Group International partners & customers Turnover (2007): 60 M€+ Infoterra Ltd. Staff (2007): 350+ Astrium shareholdings in related companies Leicester, Farnborough Newcastle Infoterra Gmb. H Friedrichshafen, Potsdam Infoterra France SAS Toulouse, Sophia Antipolis Four main entities: Infoterra France SAS Infoterra Gmb. H (Germany) Infoterra Ltd (UK) Subsidiary Infoterra Hungary Infoterra France SAS (France) Infoterra SGSA (España) Toulouse, Sophia Antipolis Infoterra Servicios de Geoinformación SA Barcelona, Madrid 2 2 Infoterra Hungary Budapest
Heritage & Relationship First Commercial Company in UK to fly Lidar 1995 (NRSC Ltd. ) OPW - Lidar for Flood Modelling OS Ireland - Lidar processing Waterways Ireland/JBA - Lidar & Orthophotos National Roads Authority Projects N 17 Tuam to Claremorris N 4 Newtownforbes Bypass Working with Compass since 2007 Erdas Software Suite – Re-seller Adopted Teaming approach in 2009 Working on mutually beneficial projects 3
Advances in Asset Inventory Conventional Capture On Foot Desktop Aerial Photography Low/Medium Resolution Video Camera(s) Manual Feature Extraction (despite promo videos) Why not capture 3 D information as well? Automation? 4
Infoterra Airborne Sensors q Fixed wing and helicopter Leica ADS 40 Ultra. Cam X Gemini MIDAS (Camera) (Lidar) (Oblique Camera) 15 -100 cm 3 -50 cm 15 cm Z 5 x 22 Mb cameras Pushbroom Stereo Frame 4 -12 ppm Nadir + 4@ 45º Wide Area Wide – Specific Area Active 5
Lidar Platforms Spaceborne (Radar) Airborne helicopter and plane Boat mounted Vehicle mounted (road & rail) Ground Based On person 6
Lidar Input to Products and Services Digital Terrain Models 3 D Cityscapes Flood Modelling Noise/ Air Pollution Mapping Road/Rail Design Asset Inventory Asset Conditioning Survey Outputs – structures, x-sections, long sections etc 7
Optech Gemini - Lidar 33 -167 KHz Pulse rate 80 -4, 000 m Operating Altitude Vertical Accuracy ~ 5 cm Horizontal Accuracy 1/5, 500 x altitude 4 Pulse Returns 0. 25 & 0. 80 mrad beam divergence Up to 30 points per m 2 Integrated 39 Mb camera 8
Vegetation Cover - Dense No obvious terrain visible from this one metre resolution satellite imagery 9
Li. DAR 4 Pulse Returns First returns from the top of the vegetation canopy Last returns from the ground or very low lying vegetation 10
Lidar 8 ppm 11
Lidar Based Products Lidar derived building outlines + building heights + building roof geometry + building generic textures + building specific textures 12
Flood Levels of risk 13
Air Pollution Mapping in Traffic Canyons 14
Noise Mapping 15
Terrestrial & Mobile Lidar Sensors q Terrestrial sensor capability q Mobile Sensor capability Vehicle Mobile Terrestrial 16
Terrestrial Laser Scan / Colourised Point Cloud 17
Rapid Surveyor – Mobile Laser Solution for Road 18
Rapid Surveyor – Installation on Rail Equipped Land Rover 19
3 D Point Cloud – Railway Environment 20
Road Clearances Overview 21
Clearances Bridges, overhead cables, vegetation etc. 6. 20 m 6. 15 m 22 6. 01 m
Gulley Heights Gulley 1 144. 27 m Gulley 2 144. 77 m Gulley 3 145. 26 m 23
Hard surface profiles Drives Pavements Road 24
Highway Modelling – 3 D Point Cloud 25
Highway Modelling – Complete Rendered Model 26
Urban Modelling 27
Urban Modelling – Rendered Model 28
Street Asset Capture XY Position Height Lighting Column Vertical Offset Road Signs Illuminated Signs Footpath Road Edge White Lines 29
Rapid Surveyor 3 D Point Cloud 30
Rapid Surveyor Colourised 3 D Point Cloud 31
White Line Condition 32
White Line Condition – Classification 33
Additional Data Available – Long Section 34
Additional Data Available – Cross Section 35
Additional Data Available 36
Finalising Feature Extraction Automatic Collection of Roadside Assets By Feature Position Dimension Automatic White Line Condition Acceptance Thresholds DTM Generation Carriageway TIN Surface Undulation Surface Water flow Overgrown Vegetation 37
Your contact Toulouse: 31, avenue des Cosmonautes 31402 Toulouse Cedex 4 France Friedrichshafen: Claude-Dornier-Strasse 88090 Immenstaad Germany Martin Holt Phone: +44 (0)116 273 2381 Mobile: +353 (0) 877533366 Mail: martin. holt@infoterra-global. com Leicester: Atlas House 41 Wembley Road Leicester, LE 31 UT United Kingdom info@infoterra-global. com Dublin: Block 8, Blackrock Business Park Carysfort Avenue Blackrock, Dublin Ireland All the geo-information you need www. infoterra-global. com 38 38


