envi and arcgis integration · visual information solutions agenda •introduction to imagery...

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ENVI and ArcGIS integrationor Incorporating imagery into your GIS Workflows

Ismaila GIROUX

Estonia UC, Tallinn, 2011

Visual Information Solutions

Agenda

• Introduction to Imagery

• Introduction to ENVI

• Introduction to ENVI EX

• ENVI – ArcGIS Integration

• ENVI Tools for ArcGIS®

• ENVI for ArcGIS® Server

• Industry Examples

• Summary


Données : Extrait de la BD

Ortho IGN, image R-G-B, 0.2m

de résolution

(http://www.ign.fr)


Imagery courtesy of GeoEye


Multisource Fusion for Multidimensional Analysis

Multisource Fusion

• Combine multiple images into composite

products

=>bring out more information than that

of individual input images

• More applications demand the use of

multiple data modalities

• Integration of Radar, Lidar, Optical,

Hyperspectral, Stereo, Thermal and

more is driving how applications

consume and process data

• These modalities will be combined to

create an even richer geospatial

context for decision making


Getting Information From Imagery

• What can I get from Imagery?

• Land Cover Analysis

• Change Detection

• Material Identification

• Object Based Analysis/Feature

Extraction

• Why use imagery?

• Hard to reach areas

• Out of date information

• Great reduction in manual digitization

• Potentially greater accuracy

• Automated processing


Change Detection


Bathymetry or Vegetation Delineation


Finding Roads, Waterways, Objects


Fire risk localization

Goal:

Forest fire risk quantification alongside a road

Data :

AVIRIS data (224 bands), region of

Jasper Ridge, California


Fire Severity : Where are the risks ?

LandSat data to map Burn severity


Water Quality : to prevent critical situations

Harmful algal Blooms or Red tides can cause significant economic impact to fishing

industries and tourism – Here AVIRIS images exploited

Absorption Feature Wavelengths (nm)

Water 970, 1180, 1450

Chlorophyll 480, 660

Cellulose 1730, 2100, 2300

N absorption 764, 1640, 2100

SOM * 1000, 2200-2300

Lignin 1730, 2300

Carbonates 1750-2250

Increased chlorophyll,

Unusual discharge?

?here?


Map to Fine Wine

Vineyards in Napa Valley are producing

better wine and refining their growth and

harvesting processes with the help of data

processing and imagery produced with

ENVI.

Susan Mahler and Paul Skinner of Terra

Spase, located in Napa, California are using

airborne remote sensing data, in

combination with soil sample analyses, to

help vintners improve irrigation and nutrition

management, make crop adjustments, and

monitor disease and pest populations. At

harvest time, the imagery enables vintners

to plan harvesting strategies for reaping fruit

at a similar and proper level of maturity.


Land displacement map





Introduction to ENVI

Visual Information Solutions20

ENVI

The Complete

Image Processing

Platform

ENVI is the premier

application for extracting

geospatial information from

remotely-sensed imagery.

ENVI - The Complete Image Processing Platform

ENVIACCESS

• Data Types

• File Format Support

• Sensor Support

• Remote Data Access

ANALYZE

• Visualizations

• Data Prep & Registration

• Spectral Classification

• Feature Extraction


SHARE

• Shape Files for GIS

• Maps

• Imagery

• Publish

EXTEND

IDL, C++, Java,

.Net, C#


Read Prepare Explore Analyze Share

Customize

ENVI – Workflow Based Tools Strategy

We are focused on what you do to get information from imagery.


Data Format Support

• ENVI allows you to read imagery from numerous satellite and airborne sensors such as QuickBird, Ikonos, SPOT, Worldview, Landsat etc.

• ENVI handles all types of data such as:

• Panchromatic

• Multispectral

• Hyperspectral

• Radar

• Thermal

• Terrain

• Lidar

• ENVI supports over 70 data formats, including:

• HDF

• GeoTIFF

• IMG


ENVI Interfaces:

ENVI Three Window:offering the wide variety of image

processing tools, data format

support and customization with

IDL

ENVI Zoom Dynamic Display:

focusing on ease-of-use, ArcGIS

integration, and imagery

performance


The new ENVI Favorites Toolbox

Access any ENVI functionality from the ENVI

Dynamic Display environment

Accessing Advanced Functionality ENVI Zoom


Preprocessing Tools

ENVI includes easy-to-use

tools for virtually any pre-

processing need including:

• Orthorectifying imagery

• Co-Registering two or more

images

• Pan Sharpening

• Creating Vector Overlays

• Identifying Regions of Interest

(ROIs)

• Atmospheric Correction

• Imagery Calibration

• Mosaic Multiple Images

Panchromatic Multispectral

Pan-Sharpened MSI


Spectral and Data Analysis Tools

ENVI contains many Spectral

Analysis Tools for such tasks

as:

• Unsupervised and Supervised

Classification


• Target Detection

• Anomaly Detection

• Regions of Interest Utilities

• Image Transforms and Filtering

• Exploitation and Assisted Target

Recognition

• Post Classification Tools


More Data Analysis ToolsENVI includes a comprehensive suite of easy-to-use data analysis tools to:• Perform image transforms, apply

filters, calculate geospatial statistics

• Create 2D scatter-plots

• Detect and quantify change in image scenes

• Measure features

• Model topographic characteristics

• Perform band and spectral math calculations

• Calculate textures


User is guided through

processing panels one

step at a time

Intuitive interface

with descriptive

instructions

Automated Workflows for Spectral Data


Innovations in Scientific Image Analysis

• New tools make analysis fast and streamlined for tactical needs

• Save time by quickly obtaining information from imagery

Viewshed Analysis

Workflow

• Provides topographic and

line of sight analysis tools

• Situational awareness

• Right-of-way applications

• City planning

+


• Uses DEM to determine area visible from

specified view sources

• Multiple view sources can be used

• Specify a view range and height





Introduction to ENVI EX


• Streamline User’s Workflow for

easy-to-use, efficient image

processing

• Image Processing Tools with

ArcGIS Integration

• Dynamic Display and Navigation

Capabilities

• Workflow Driven

• Processing Previews

• Proven Scientific Methods

• Flexible Output Options

ENVI EX


• Dynamic Display Interface

• Support for variety of file formats

• Standard Image Manipulation Tools

• Annotation Support

• Vector Support

• Output Product Generation Support

• RPC-based orthorectification support

ENVI EX


• Image Processing Workflows

• Feature Extraction

• Unsupervised Classification

• Supervised Classification

• Thematic Change Detection

• Image Difference Change

Detection

ENVI EX


• Integration with ArcGIS

• ESRI Layer File Support

• Geodatabase Read and Write

• All symbology preserved

• Drag-and-drop support from

ArcMap into ENVI

• Map Layout View

• Output options with ESRI

Layout Tools

• Support of ArcGIS Template

(.mxt) files for Layout

ENVI EX


Classification Workflow

• Supervised and Unsupervised

Classification Workflows

• Import training samples

• Shapefile

• Geodatabase

• Manually define training samples

• Or, let ENVI define class regions

• Classification Algorithm

• ISODATA

• Maximum Likelihood

• Mahalanobis Distance

• Minimum Distance

• Spectral Angle Mapper


Change Detection Workflow

• Image Difference or

Thematic Change

• Use vegetation

indices if desired

• Cleanup methods for

filtering and

aggregating results

• Preview changed

areas in portal

window


RPC Orthorectification Workflow

• Single Scene RPC

Orthorectification

• Use an input image and

DEM to quickly and

easily orthorectify

imagery

• Preview changed areas

in portal window


Feature Extraction Workflow

Use resulting features for further

analysis in ENVI or export to

ArcGIS for additional GIS work

Example: Forestry (0.6m MS)


Object based

approach to

segmenting and

classifying

an image into to

features of

interest

Feature Extraction Workflow





ENVI – ArcGIS Integration


The convergence of Earth Remote Sensing (ERS) and GIS applications is creating transformational technologies to help address:

The Convergence of Technologies

• The growing need for pervasive geospatial information

• Multidimensional views of geography

• Analytical and predictive methodologies for designing the

future





ENVI Tools for ArcGIS®


• Image analysis tools can

now be accessed directly

from ArcGIS®

• ENVI tools work in both

Server and desktop

environments

• Support for ArcGIS 9.3

and 10

ENVI Tools

Can be accessed

from the ArcGIS

Desktop

Also from the

ArcGIS Server®

Platform

ENVI and Imagery


D

Delivers powerful functionality to GIS

users, such as:

• Detecting Change

• Extracting Features

• Classifying land cover

• Create custom ENVI Tools

• Users can now run scientifically-

proven ENVI capabilities from

within the familiar ArcGIS Toolbox

• Upon installation of ENVI,

powerful image processing tools

will appear in ArcGIS

ENVI and Imagery


• Customize the

ENVI Toolbox to

create and add

your own image

processing tools

• Add tools to an

ArcGIS model

to take

advantage of

full geospatial

analysis

capabilities

Streamlined workflow and integration with ArcGIS®


Feature Extraction Demo





ENVI for ArcGIS® Server


ENVI for

ArcGIS Server®

• ENVI Tools in the

ESRI ArcGIS Server

platform

• Deploy ENVI tools

to the ArcGIS

Desktop or a Web

Application

• Image processing

and analysis can be

performed by

server resources

ENVI for ArcGIS®

Server


• Allows models using ENVI and ENVI EX tools to be published and

run from ArcGIS Server

• ENVI for ArcGIS Server Standard will include all of the common

tools

• ENVI for ArcGIS Server Advanced will include all the common tools

and custom tools created with ENVI

ENVI for ArcGIS® Server





Industry Examples


Geospatial Applications for Climate Change

Measuring Ice Fields

Imagery technologies can

help measure important

factors related to climate

change, such as ice field

size


Natural Disaster Management with Change Detection

Geospatial Applications for Natural Disasters

Advanced image analysis

algorithms can help assess

damage from natural

disasters quickly and

accurately to route recovery

and reconstruction efforts

effectively.


Urban Growth and Agricultural Impacts

Geospatial Applications for Urban Expansion

2005 2007

Areas of Impact

Change detection helps quantify

new construction, loss of

agricultural fields, to help solve

community problems and plan for

growth.


Impervious Surface Analysis

Geospatial Applications for Urban Expansion

New feature extraction

technologies can improve the

accuracy of land cover

classes to increase the

predictability of storm water

runoff


Resource Management

Geospatial Applications for Resource Management

Feature extraction can be

used across even the

largest images to assess

and also quantify

deforestation


Measuring Forest Health


Feature extraction and classification can help experts measure and assess forestry problems related to pests or fire.


Crop Management


Advanced classifications using

hyperspectral or multispectral

imagery can help predict crop

yields and improve harvest

management across large

acreage.


Taillis de chênes et de charmes très dense. Hauteur = 10m.

Taillis sous futaie de chênes sessiles et de hêtres. Taillis lâche. Hauteur = 25m.

Taillis sous futaie de chênes sessiles et pédonculés. Densité moyenne. Taillis haut.

Taillis sous futaie de chênes et de merisier. Taillis très dense. Hauteur = 20m.

Taillis sous futaie dense de feuillus en zone humide et sur forte pente.

Futaie lâche de chênes et/ou de pins.

Taillis sous futaie de feuillus adultes et de résineux jeunes. Futaie dense, taillis lâche.

Futaie dense et jeune de résineux (épicéas, pins sylvestres).

Futaie dense d’épicéas assez haute. Hauteur = 20m.

Futaie dense d’épicéas et de pins sylvestres vieillissants.

Futaie âgée et très dense de résineux (épicéas, pins sylvestres). Hauteur = 30m.

Non bois.

0 1 2 3 4 5

kmClassification quality : 90,1 %

Geospatial Applications for Resource ManagementForest Characterization

Project developed by Pr. LACOMBE


Geospatial Applications for Resource Management Seas and Oceans

ESRI Latin America User Conference 2007

www.actimar.fr

Operational Oceanography :

Actimar : www.actimar.fr

“High resolution remote sensing applied to coastal

zone management and deep ocean mapping “

« Dans la communauté hyperspectrale, ENVI est une

référence, en voie de devenir le véritable standard »,

said Marc Lennon, research engineer, ActiMar.

EMSA : European Maritime Safety Agency

http://www.emsa.eu.int

ENVI is used for visualizing and validating remotely

sensed datasets

http://www.actimar.fr/

http://www.actimar.fr/

http://www.emsa.eu.int/


ENVI Case Studies : Geology & Environment

ENVI @ BRGM in France ( Bureau Recherche

Geologique et Miniere ) : French Agency for

Geological & Mining Research

Customer Challenge

Characterization of the environmental impact of

mining activity ( Sokolov Basin, Czeh Republic )

Project developed by Anne Bourguignon,

Stéphane Chevrel, Veronika Kopačková

Solution Achieved

Ground truth acquisition ( spectroradiomertry )

and ASTER images analysis with ENVI enable a

rapid estimation of the area with polluants.

Large areas can be analyzed, which is a key

benefit as compared to detailed on site analysis


Your own application for your own need!METIS-FORETS

ESRI Latin America User Conference 2007

IDL and ENVI are at the Heart of International

Projects with EADS Defense and Security

Systems in France

Customer Challenge

EADS needed to create a solution using satellite

imagery to enable the National Forest Inventory to

identify forest cut inventories.

Solution Achieved

EADS Defense and Security Systems developed

the Metis forêt solution, in partnership with the

CEMAGREF (Research Institute for Agriculture

and Environment Engineering), the IFN (National

Forest Inventory), the Research Ministery and the

CNES ( French Space Agency ).

"We developed applications with IDL and ENVI

because of their friendly and easy-to-use tools,"

explains Patrice Couillaud, project manager at

EADS.


Summary

• ENVI and ENVI Ex are powerful tools to help with imagery

visualization and analysis

• ITT and ESRI continue to work together to increase the

integration between ENVI and ArcGIS

• ENVI Tools for ArcGIS and ENVI for ArcGIS® Server allow you

more flexibility to use ENVI within ArcGIS and to share results

quickly and easily with others


For additional information

please visit:

www.alphagis.eewww.ittvis.com/envi

Or contact me at:

[email protected]

Thank you!

envi and arcgis integration · visual information solutions agenda •introduction to imagery...

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