Using Lidar in ArcGIS Amadea Azerki

Agenda

• Introduction to Lidar

• LAS

• Mosaic

• Demonstration

• Q&A

Types of Lidar • Airborne

- Captured from aircraft - Suitable for surface analysis

• Terrestrial and Mobile - Captured from the surface - Suitable for feature location and data validation

d

Lidar Data • Very rich and dense in content

First Return

SecondReturn

ThirdReturn

Last Return

Lidar Data

First Return

SecondReturn

ThirdReturn

Last Return

DSM

• Very rich and dense in content

Lidar Data

First Return

SecondReturn

ThirdReturn

Last Return

DSM

DTM

• Very rich and dense in content

Lidar Data

First Return

SecondReturn

ThirdReturn

Last Return

DSM

DTM

n

Breakline

• Very rich and dense in content

Challenges of Lidar Data

• Huge volumes

• Multiple sources

• Multiple projections

• Varying accuracy

• Multiple representations

LAS Dataset NEW at 10.1

• New data type

• File based

• Treats a collection of LAS files as one logical dataset

LAS Dataset – Interactive Editing

Mosaic Dataset

• Catalog your Lidar data

• Support for NEW at 10.1 - LAS files and datasets - Terrain datasets

• Share internally and online

LAS Versus Mosaic Datasets

File01.las File02.las … File99.las

Multiple Files / Folders Tiled / Overlapping

Extents (Location / Time)

O R G A N I Z E

Manage Serve / Share

Mosaic Dataset

P R O J E C T S

Analyze / Update Data

LAS Dataset 1

LAS Dataset 2

LAS Dataset

Demonstration

Resources • Resource center

• Using LAS files at 10.1

• Lidar classification

• 3D feature extraction

Questions?

Please take a few moments to evaluate this session – Thanks!