LiDAR-Maps and More for Digital Cameras Engineers and ... · PDF fileTechTime New Mapping Tools for Transportation Engineering Airborne LiDAR Digital Cameras and Their Applications

TechTimeNew Mapping Tools for

Transportation Engineering



Airborne LiDAR

Digital Cameras

and

Their Applications



LiDAR-Maps

and More for

Engineers

Presenter: Azadeh Koohzare, Ph.D., P.Eng.

Project Manager, Geodesy and Geomatics

[email protected]

604-683-8521





Slide #226/05/2009 9:13:34

AM

ALS50-II Leica components

(Leica LiDAR Manual, 2007)



McElhanney’s system





RGB and NIR Digital Cameras

Rolleimetric AIC P65+

with RGB lens

Rolleimetric AIC P45

with Near IR lens

(same housing)



McElhanney’s Cameras (linked to LiDAR)





GPS Base

LiDAR Components:

- GPS

- IMU (Inertial Measuring Unit)

- Scanner

Slide #4

Components of LiDAR







Slide #526/05/2009 9:12:54

AM

Grouse Mt, B.C.

Slide #5

26/05/2009 9:12:54 AM


Transportation EngineeringDesigned Flight Lines





Dense pickup of DEM mass points

Data reduction using Airborne GPS/IMU

Ground Kinematic

Result – Point cloud

Data classification from point cloud to Bare Earth

Creation of TIN’s, Contours and other products

LiDAR Process







McElhanney’s

LiDAR

Classification

and Quality

Control







Overlay Bare Earth Data

Scan Images for voids and

erroneous points

HIGH DEGREE OF CONFIDENCE

IN ALL DELIVERABLES

From Stereo Photo or LiDARgrams


Transportation EngineeringLiDAR Quality Control





Photogrammetric WorkStation







Accuracy Expectations

• Vertical accuracies Based on Project Reports

Grouse Mountain 10cm on Hard surfaces (95% confidence level)

Kitsault 12cm on Gravel Surfaces

Campbell River 20cm in Heavy Tree cover

• Horizontal accuracies vary depending on flying

height and terrain surface







Page 8 of 32Slide #11

26/05/2009 9:12:54 AM

The Value of LiDAR





LiDAR data by Elevation




Transportation Engineering Profile view of LiDAR data




Transportation EngineeringExtracted LiDAR data over Orthophoto





Slide #1526/05/2009 9:12:54 AM

Profile view of LiDAR data





Transmission Line from LiDAR data

Software can extract powerlines

and store in vector format.




Transportation EngineeringContours generated from LiDAR points





Shaded relief with contours generated from

LiDAR points





Applications

of LiDAR





Aerial Photograph

Kerr Sulphurets site

1000 m100 m

Bare Earth LiDAR





Civil engineering & Infrastructure development

Corridor mapping

Spatial planning

Flood monitoring

Landslide monitoring

Erosion monitoring

Coastline monitoring

Irrigation management

Coastline Analysis and Protection

Volumetric studies

Engineering Design (Transmission Lines)

3D City Model and Asset Management Applications





• Kinskuch and Jade creek, near Stewart, BC.– 2008

• Chilliwack Power Transmission– 2008

• Campbell River, BC. University of British Columbia -2008

• Kerr-Sulphurets-Mitchellin site northern Terrace, BC. -2008

• Mtn Milligan, BC. -2008

• Skeena Flood Plain Mapping-2008

• Abbotsford Development-2008

• Grouse Mt site in Vancouver, B.C. -2008

• Galore Creek Mine site Galore Creek Mining Corp. - 2008

• Pickle Lake Mine in northern Ontario-2008

• Onion Creek - Smithers, BC. -2008

• Maroon Creek in north west B.C. -2008

• Fraser and Nechako River for hydraulic modeling- 2008

• Urban and mountainous areas for geo-technical applications – 2007

• SFPR – Gateway Program

• Sechelt Inlet – Land Development

• Sechelt Ledge/ Thornborough/ McNab Creek – Land development

• Port Renfrew – ND Lea

• Kitimat - PNG

Some Projects





Slide #2326/05/2009 9:12:55

AM

Slide #23

26/05/2009 9:12:55 AM

RGB ImageryNIR Imagery

Combined RGB and NIR Images

+ =




Transportation EngineeringRGB and NIR Applications

NIR/CIR

Agriculture

Forest Classification

Environmental Terrain Hazard Studies

Municipal Impervious Surfaces AnalysisRGB

Colour orthophoto

Photogrammetric data capture







THANK YOU!

Documents

LiDAR-Maps and More for Digital Cameras Engineers and ... · PDF fileTechTime New Mapping Tools for Transportation Engineering Airborne LiDAR Digital Cameras and Their Applications