ArcView® Image Analysis

Kaushik ChakrabortyRegional Manager

ERDAS Europe, Africa & Middle East.

(and what’s new in 1.1)

Why ERDAS?

• World’s Leader in Geographic Imaging• Over 30,000 ERDAS Users World-wide

Image Processing Mapping Applications

• ESRI and ERDAS Use Each Other’sData Models Vector and Raster

• Common Development Environment• Partners on Hundreds of Global Projects

Image Analysis - Product Concept

• Geographic Imaging

• Simplicity

• Data access

• Key analysis functions

• Avenue customization

• Complete integration

• Data Access Direct support for satellite formats

• Display & Visualisation Enhanced operation within ArcView

• Image enhancement tools• Georeferencing / Alignment• Spectral Analysis & Classification• Automated Change Detection• Automated feature extraction from imagery• Complete ArcView integration

What Does It Do . . ?

• Direct read (DLL’s) • Image Analysis Data

Source ERDAS IMAGINE GRID GeoTIFF JPEG MrSID

• Importers

TM Landsat SPOT CIB

CADRG RPF IRS-1C/1D

Data Access

Image Display• Fast image display

Supports IMAGINE pyramids

• Interactive tools Select bands Query pixel values Measure features

• Contrast & Brightness adjustment• Sharpen• Smooth

Image Enhancement

Image Alignment

• Georeferences imagery to Shape files

Base Map Update - rapid & current

Automatic Map Update

Categorization

Change Detection

Date 1

Date 2

Change Map

Convert to Shape files

• Straight into ArcView!!• Fastest way to create land use coverages?

Integration - Image Analysis Theme

• Fully integrated No new environment to learn

What are its applications?

• Oil & Gas Exploration Geological Interpretation Pipeline monitoring

• Urban Planning Change Detection

• Environmental monitoring Pollution Control

• Fisheries & Agriculture• Defence

Border control Targeting

• Natural hazard mapping

What’s New . . . ?

Provide access to new data types

Add flexibility for setting and managing user preferences

Provide additional data enhancement options

Subset data based on spectral or color band selection

Additional quality management capabilities with image geo-positioning

Mosaic data in a simple single-button operation

Stack images to visualize data from multiple image source files in a single theme

Data Access and Preparation . . .

• Direct Read and Write ERDAS IMG, GRID, GeoTIFF/TIFF

• Direct Read JPEG, ERDAS LAN and GIS,

MrSID, BILBIL, BIPBIP, BSQBSQ,ERMapper, NITFNITF

• Importers Landsat, SPOT, DOQQ, IRS-1,

RPF, CIB, CADRG, Landsat 7Landsat 7,NLAPSNLAPS, RadarSatRadarSat, ERSERS

• Direct plug-ins use the sametechnology as ArcInfo 8 and IMAGINE

New for 1.1 in redred.

Image Mosaicing . . .

• What you see,is what you get!

• Independent of Pixel Sizes

• InteractiveColor Balance

• Output specific areas andcookie cut data

Additional Data Enhancement . . .

New Stretches

Infrared / Natural Colour Selection

Subset . . .

• Combine Bands for Temporal Change Create a hybrid image from two different data types Combine multi resolution data

Layer Stack . . .

• Select one or more bands from a multi band image Remove unwanted layers Prepare data for mosaic

WHY?

A processed image . . .A processed image . . .

… … or information?or information?

IMAGERY IS INFORMATION.

Image Analysis

www.erdas.com