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LiDAR 101

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Information about LiDAR 101

Published on July 2, 2008

Author: aerialservices

Source: slideshare.net

Description

Light-imaging Detection and Ranging (LiDAR) has become a common tool used in mapping and is being dispatched to complete more and more projects, but do you understand what this technology is, how it works, and what it can be used for? Through this brief but informative presentation, we’ll get you up-to-date on LiDAR
technology and its ability to offer acquisition of digital elevation data for large-scale mapping projects. We’ll also
discuss how LiDAR can work alongside traditional aerial photography and photogrammetric techniques – making it even more powerful.
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LiDAR 101 Presented by Aerial Services, Inc. Cedar Falls, Iowa www.AerialServicesInc.com Image: Brownsville, Texas LiDAR / Data: USGA NED Aerial Services, Inc. • Copyright 2007 / All Rights Reserved *Select Imagery is Courtesy of ASI’s LiDAR partner Airborne Solutions, Inc. of Dillon, Colorado Li ght- D etection A nd R anging

LiDAR, A Useful Tool

Bare Earth (Brown) Vegetation (Green)

 

 

 

 

 

Contours

Terrain Profiles

Aerial Photo Draping

Shaded Relief Models (3D DTM)

Digital 3D Fly-Through Click image for fly-through Hit spacebar for next slide

Bare Earth DEM Surface DEM (DSM) Raw LiDAR Points

Bare Earth DTM (w/ Photogrammetric Breaklines Photogrammetric Breaklines LiDAR Data Grid & Photogrammetric Breaklines

Hydrographic Modeling

Transportation & Highways

Airport Design

Transmission Line Surveys

LiDAR Considerations Is LiDAR For You? What is your intended use? Required accuracy; LiDAR point spacing? Does your area have steep slopes or is otherwise inaccessible? Do the comparative costs with other methods warrant use? Great Technology, but is not…

Is LiDAR For You?

What is your intended use?

Required accuracy; LiDAR point spacing?

Does your area have steep slopes or is otherwise inaccessible?

Do the comparative costs with other methods warrant use?

Great Technology, but is not…

 

 

Example Project Mesaba Mines Hoyt Lakes, Minnesota Teck Cominco / Vancouver, British Columbia 87 square kilometer area Airborne LiDAR data collection Post-processing QA/QC Color aerial photography Orthorectified photography

Mesaba Mines

Hoyt Lakes, Minnesota

Teck Cominco / Vancouver, British Columbia

87 square kilometer area

Airborne LiDAR data collection

Post-processing

QA/QC

Color aerial photography

Orthorectified photography

Bare Earth Points

Bare Earth DEM

20m DEM Grid w/o Breaklines

1m Contours w/o Breaklines

1m Contours w/o Breaklines

20m DTM Grid w/ Breaklines

1m Contours w/ Breaklines

1m Contours w/ Breaklines

AerialServicesInc.com Presentation Slides Free Downloads “ 10 Reasons Why LiDAR Is Popular” “ 10 Things You Must Know When Buying Photography & Mapping” Free Geospatial E-Newsletter Sample projects & imagery Contact information Google Search Terms “ Aerial Services Inc” “ ASI LiDAR”

AerialServicesInc.com

Presentation Slides

Free Downloads

“ 10 Reasons Why LiDAR Is Popular”

“ 10 Things You Must Know When Buying Photography & Mapping”

Free Geospatial E-Newsletter

Sample projects & imagery

Contact information

Google Search Terms

“ Aerial Services Inc”

“ ASI LiDAR”

LiDAR 101 Presented by Aerial Services, Inc. Cedar Falls, Iowa www.AerialServicesInc.com Li ght- D etection A nd R anging Aerial Services, Inc. • Copyright 2007 / All Rights Reserved *Select Imagery is Courtesy of ASI’s LiDAR partner Airborne Solutions, Inc. of Dillon, Colorado

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