Joseph B Bowles

Managing Imagery and LiDAR

Local Government Needs

• Store and manage Imagery/LiDAR

• Disseminate as a basemap (web, desktop)

• Imagery/LiDAR distribution

• Serve to CAD or Non-GIS clients

• Feature creation/update

• Historical analysis and management

• Image Analysis (impervious surface mapping, image

classification)

• Image processing

Local Government Concerns

• Cost of Image Acquisition

• Lack of Storage Space

• Performance

• Public Requests

• Requests from other Gov’t entities

• Historical imagery request, processing and

management

ArcGIS for Imagery

Management

Dissemination

Visualization

Analysis

What is a Mosaic Dataset?

• Catalog of

- Imagery

- Associated metadata

- Processing functions to be applied

• Stored in Geodatabase

• Authored using ArcGIS for Desktop

• Enables

- Dynamic Mosaicking

- On-the-fly processing

Demonstration

Creating a Mosaic Dataset

Serving Imagery

2 Ways to Serve Imagery

• Directly from individual raster dataset

• From mosaic dataset (requires image extension)

Image.tif

Image1.tif

Image2.tif

Image3.tif

Mosaic

Dataset

Publish to Server

Publish to Server

Image Extension

On-The-Fly Processing

Creating Multiple Products from a Single Source

• Processes

• Extract Bands

• Hillshade, Shaded Relief

• Stretch

• Applied to

• Individual rasters

• Compete Mosaic

• Mosaic imagery from multiple tiles

• User can query mosaic

• Year = 2009

Dynamic Mosaicking

Mosaicking Multiple Images On Demand

2005

2007

2009

Demonstration

Serving Imagery

Visualizing Imagery

Desktop

Mobile

Web

One click access to common imagery tools

Image Analysis Window

• Enhancement

- Contrast, Brightness, Gamma,…

- Dynamic Range Adjustment

• Interpretation

- Sharpen, Top is Up,…

• Processing Functions

- Clip, Mask

- StackBands, NDVI,

- Orthorectify, PanSharpen ….

• Has its own Layer List

• Access to accelerate display

Demonstration

Visualization

Image Analysis

• Image Classification Tools

• Change Detection Workflows

• Geoprocessing Tools

Demonstration

Analysis

Questions