1. ArcView® Image Analysis
(and what’s new in 1.1)
Kaushik Chakraborty
Regional Manager
ERDAS Europe, Africa & Middle East.

2. 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’s Data Models
Vector and Raster
Common Development Environment
Partners on Hundreds of Global Projects

3. ERDAS - ESRI Partnership
Long established co-operation
Harvard University roots
ESRI investment in ERDAS
Image Processing is core ERDAS technology
ERDAS pioneered concept of Vector with Raster
‘Live Link’ (1988)
IMAGINE Vector module (1995)
Image Analysis Extension (1998)
Total adoption of ARC vector data model within ERDAS IMAGINETM
Sharing ‘common’ data formats
Integration achieved at a data level

4. Image Analysis - Product Concept
Geographic Imaging
Simplicity
Data access
Key analysis functions
Avenue customization
Complete integration

5. What Does It Do . . ? Data Access Display & Visualisation
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

6. Data Access Direct read (DLL’s) Image Analysis Data Source Importers
ERDAS IMAGINE
GRID
GeoTIFF
JPEG
MrSID
Importers
TM Landsat
SPOT
CIB
CADRG
RPF
IRS-1C/1D

7. Image Display Fast image display Interactive tools
Supports IMAGINE pyramids
Interactive tools
Select bands
Query pixel values
Measure features

8. Image Enhancement
Contrast & Brightness adjustment
Sharpen
Smooth

9. Image Alignment
Georeferences imagery to Shape files

10. Base Map Update - rapid & current

11. Automatic Map Update

12. Categorization

13. Change Detection
Change Map
Date 2
Date 1

14. Convert to Shape files Straight into ArcView!!
Fastest way to create land use coverages?

15. Integration - Image Analysis Theme
Fully integrated
No new environment to learn

16. 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

17. 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

18. Data Access and Preparation . . .
Direct Read and Write
ERDAS IMG, GRID, GeoTIFF/TIFF
Direct Read
JPEG, ERDAS LAN and GIS, MrSID, BIL, BIP, BSQ, ERMapper, NITF
Importers
Landsat, SPOT, DOQQ, IRS-1, RPF, CIB, CADRG, Landsat 7, NLAPS, RadarSat, ERS
Direct plug-ins use the same technology as ArcInfo 8 and IMAGINE
New for 1.1 in red.

19. Image Mosaicing . . . What you see, is what you get!
Independent of Pixel Sizes
Interactive Color Balance
Output specific areas and cookie cut data

20. Additional Data Enhancement . . .
Infrared / Natural
Colour Selection
New Stretches

21. Subset . . .
Select one or more bands from a multi band image
Remove unwanted layers
Prepare data for mosaic
Layer Stack . . .
Combine Bands for
Temporal Change
Create a hybrid image from two different data types
Combine multi resolution data

22. IMAGERY IS INFORMATION.
WHY?
IMAGERY IS INFORMATION.
A processed image . . .
… or information? 

23. Image Analysis