3D Laser Mapping: What can you use 3d laser scanning for?

WHAT CAN YOU USE 3D LASER SCANNING FOR?

TYPICAL PLATFORMSWHAT DO WE SCAN FROM?

TYPICAL PLATFORMS – MOBILE MAPPING

TYPICAL PLATFORMS – RAILWAYS & WATERWAYS

TYPICAL PLATFORMS – FIXED WING

TYPICAL PLATFORMS - HELICOPTER

TYPICAL PLATFORMS – UAV

TYPICAL PLATFORMS – TRIPOD

TYPICAL PLATFORMS – INDUSTRIAL

TYPICAL PLATFORMS – INDOOR

TYPICAL APPLICATIONSWHAT DO WE USE THE DATA FOR?

APPLICATIONS – HIGHWAY MAINTENANCE

• EXISTING CONDITION SURVEY• REPORTING OF EXISTING CONDITIONS• OFTEN USED FOR ASSISTING WITH NEW DESIGNS

• AS-BUILT• ENSURE THE DESIGNS ARE BEING CORRECTLY IMPLEMENTED ON SITE• REPORT ANY DEVIATIONS TO THE CLIENT

APPLICATIONS – HIGHWAY MAINTENANCE

APPLICATIONS – BRIDGE HEIGHT MAPPING

• ACCURATE DATA ON VERTICAL CLEARANCES OF ROADWAY STRUCTURES IS CRITICALLY IMPORTANT IN OVERSIZE ROUTE PLANNING

• TRADITIONALLY COLLECTING THIS DATA HAS THE FOLLOWING ISSUES:• DANGEROUS AND CAN CAUSE CONGESTION WITH WORK CREWS SUBJECT TO SIGNIFICANT TRAFFIC HAZARDS• WORK MUST BE PERFORMED DURING AVAILABLE TRAFFIC BREAKS

• MOBILE MAPPING SYSTEMS (MMS) COUPLED WITH AUTOMATED DATA EXTRACTION• PROCESS UP TO 40 BRIDGES PER DAY• SURVEY GRADE ACCURACY AT TRAFFIC SPEED

APPLICATIONS – BRIDGE HEIGHT MAPPING

5.24m 5.32m

APPLICATIONS – BRIDGE HEIGHT MAPPING• TYPICAL REPORT GIVEN TO CLIENT

Source:http://www.terrametrix3d.com

APPLICATIONS – MINING VOLUME MEASUREMENTS• ACCURATELY MEASURING THE VOLUME AND MASS OF A STOCKPILE

• PRECISE MEASUREMENTS FOR FINANCIAL REPORTS AND EXCISE DUTY• FOLLOWING REGULATORY REQUIREMENTS

• EU COUNTRIES MUST DO A MASS BALANCE TO CALCULATE CO2 EMISSION• ASSISTING IN PLANNING

• TRADITIONAL TECHNIQUES SUCH AS GNSS AND TOTAL STATIONS CAN BE:• TIME CONSUMING• DANGEROUS (WALKING ON STOCKPILE)

APPLICATIONS – MINING VOLUME MEASUREMENTS

APPLICATIONS – SLOPE MONITORING

Mining Coastal Avalanche

Highways Railways Landslide

APPLICATIONS – SLOPE MONITORING

• LARGE LANDSLIDES USUALLY OCCUR AFTER A SMALL SLOPE FAILURE

• BASIC METHODOLOGY• SCAN OBJECT• RE-SCAN SAME OBJECT AT REGULAR INTERVALS• DETECT ANY SMALL CHANGES• SEND WARNING BEFORE MAJOR SLOPE FAILURE

APPLICATIONS – SLOPE MONITORING

APPLICATIONS – COASTAL SURVEYING• APPLICATIONS INCLUDE:

• MONITORING OF CLIFFS FOR LANDSLIDES• MEASURING EROSION• FLOOD MAPPING• HYDRODYNAMIC MODELLING• RESOURCE MANAGEMENT• ENGINEERING SURVEYS

APPLICATIONS – COASTAL SURVEYING

APPLICATIONS - POWERLINES• AIRBORNE LIDAR IS USED TO MAP POWERLINES FOR:

• ASSET MANAGEMENT• VEGETATION CLEARANCE• ENGINEERING SURVEYS

• ADDITIONAL DATA CAPTURED INCLUDES:• COLOUR PHOTOS (NADIR AND OBLIQUE)• THERMAL PHOTOS – FOR “HOTSPOT” DETECTION• WEATHER DATA – FOR ACCURATE MODELLING OF CONDUCTOR SAG

APPLICATIONS - POWERLINES

Source:www.terrasolid.com

APPLICATIONS - RAILWAYS

• APPLICATIONS INCLUDE:• ASSET MAPPING• CLEARANCE MAPPING (CLASH DETECTION)• ENGINEERING SURVEYS• EMBANKMENT LANDSLIDE DETECTION

APPLICATIONS - RAILWAYS

APPLICATIONS - HERITAGE

• LASER SCANNING PROVIDES VISUAL AND METRICALLY ACCURATE BASE DATA FOR A VARIETY OF HERITAGE APPLICATIONS INCLUDING• CONSERVATION PLANNING• CONDITION SURVEYS• DECAY MONITORING• RECORDING• ARCHITECTURAL ANALYSIS• ARCHAEOLOGICAL INVESTIGATION• SITE PRESENTATION

APPLICATIONS – HERITAGE

Source:www.geoslam.com

APPLICATIONS – VEGETATION MAPPING

• VARIOUS TYPES OF INFORMATION CAN BE EXTRACTED FROM LIDAR INCLUDING:• CANOPY HEIGHT• CANOPY VOLUME• SUB-CANOPY TOPOGRAPHY• BIOMASS• STEM DIAMETERS

APPLICATIONS – VEGETATION MAPPING

Source:www.bgc-jena.mpg.de

APPLICATIONS – VEGETATION MAPPING

Source:www.geoslam.com

APPLICATIONS – ACCIDENT RECONSTRUCTION

• AFTER A FATAL ROAD ACCIDENT THE ROAD MUST BE CLOSED FOR A FULL SURVEY BY THE POLICE

• USING TRADITIONAL SURVEYING TECHNIQUES THE ROAD MAY BE CLOSED FOR MANY HOURS

• POLICE FORCES ARE NOW USING 3D TERRESTRIAL SCANNERS TO QUICKLY SURVEY THE ACCIDENT SCENE

APPLICATIONS – 3D MODELS & SIMULATIONS

• LIDAR IS THE PERFECT CHOICE FOR CAPTURING 3D INFORMATION FOR USE IN THE CREATION OF 3D MODELS AND SIMULATIONS DUE TO:• HIGH SPEED OF CAPTURE• HIGH RESOLUTION OF DATA• HIGH ACCURACY OF DATA

• POINTCLOUDS ARE OFTEN COLOURED TO PROVIDE PHOTOREALISTIC POINTCLOUDS TO AID MODELLING

APPLICATIONS – 3D MODELS & SIMULATIONS

Source:www.severnpartnership.com/

INDOOR MAPPINGZEB1

ZEB1 - INTRODUCTION• HANDHELD MOBILE MAPPING

• WALK & SCAN WITH ZEB1• MEASURE >43,000 PTS/SEC

• PROCESS IN THE CLOUD• USING SLAM SOFTWARE• CLOUD-TO-CLOUD REGISTRATION

ZEB1 – HOW IT WORKS2D laser scanner with 270° field of view, 30m range

Inertial measurement unit (IMU) records movement in 3D space

Spring provides oscillation of measurement head

Handle

Power/data socket

LED status indicator

ZEB1 – EXAMPLE POINTCLOUD

• 3 MINUTES TO CAPTURE• 3 MINUTES TO AUTOMATICALLY PROCESS THE DATA

ANZAC SQUARE, BRISBANE, AUSTRALIA

Source:www.geoslam.com

DO YOU WANT TO KNOW MORE?

IF SO, GO TO WWW.3DLASERMAPPING.COM FOR MORE INFO, OR GIVE US A CALL

UK: +44 1949 838 004South Africa: +27 12 940 0515Australia: +61 (0) 8 9261 7703North America: +1 720 214 3554