1. Image Access Solutions
An Overview of IAS Image Compression & Streaming Technology
Clive Cook
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2. Outline Introduction Technology Background Image Access Solution
Summary

3. Introduction The problem, The solution,
Customers with very large geospatial data sets consisting of imagery whose file size’s are often in excess of 10 GB
They need to provide access to this imagery to their many field workers
The field workers might only have access to narrow bandwidth networks (Satellite phones etc …)
The solution,
Exelis Visual information Image Access Solution (IAS)
Pulls together existing technologies and concepts,
The Pull Approach
JPEG 2000 / JPIP

4. The Pull Approach What is it? What are the benefits?
Compress and store data on the server side
Transmit only data the user requests – but allow access to all of the information in every image
What are the benefits?
Less storage space
Small communication link demands
Much less expensive than large server farms
Allows for the support of a large and disperse user base
Serve large image products over existing communication links – all the way down to hand held devices and radios (3G connections, satellite connections, etc …)

5. JPEG 2000 Overview Standards based, so multi client, eg … JPEG 2000
IAS Viewer
ENVI Zoom
KDU Show
ArcMap
JPEG 2000
Is an image compression standard and coding system
Superior compression performance, particularly at low bit rates
Lossless and lossy compression using wavelet transformation
Progressive transmission – after small part of whole image received, viewer can display a lower quality version of image, quality improves through download of more bits from source.
Multi-layered and multi-resolution
Metadata allows for geolocated imagery

6. JPEG 2000 Compression Example: 8-bit RGB Colour Photo Raw Image:
28701 cols x rows x 3 bands x 8-bit
1072 MB original file size

7. JPEG 2000 Compression Example: 8-bit RGB Colour Photo Raw Image:
28701 cols x rows x 3 bands x 8-bit
1072 MB original file size
Example: 8-bit RGB Colour Photo
Raw Image:
28701 cols x rows x 3 bands x 8-bit
1072 MB original file size
Numerically Lossless:
Numerically Reversible
608 MB
1.76:1 compression (57%)

8. JPEG 2000 Compression Example: 8-bit RGB Colour Photo Raw Image:
28701 cols x rows x 3 bands x 8-bit
1072 MB original file size
Example: 8-bit RGB Colour Photo
Raw Image:
28701 cols x rows x 3 bands x 8-bit
1072 MB original file size
Numerically Lossless:
Numerically Reversible
608 MB
1.76:1 compression (57%)
Visually Lossless:
Lossy compression
107 MB
10:1 compression (10%)

9. Image Comparison
Numerically Lossless
Visually Lossless

10. JPEG 2000 Overview JPIP streaming JPEG 2000 Interactive Protocol
Is a compression streamlining protocol that works with JPEG 2000 to produce an image with the least bandwidth
Downloads only the requested part of the image
Allows for a quick viewing of a large image at low resolution, or a smaller part of the image at high resolution.

11. 5 4 3 2 1 R4 image displayed (999KB / 1.8%)MB
Data
Transfer
R4 image displayed (999KB / 1.8%)
Original image = 13.5K x 13.5K x 24 bits/pixel (530MB)
JPEG 2000 compressed to 10:1 (53 MB)
sub-frame enlargement with digital zoom
R2 image sub-frame (295KB / 0.5%)
IAS reduces the total data transmitted to 1,324 KB (2.4%)
sub-frame enlargement digital zoom
R0 image sub-frame (30KB / 0.06%)

12. Image Access Solution
Image Access Solutions (IAS) is an image dissemination platform that allows you to deliver and visually exploit geospatial imagery data, when and where your users need it

13. Image Access Solutions
Image Access Solutions (IAS) provides a client-server configuration for high-performance image compression, conversion, and delivery based on JPEG 2000 standards.
On the server, IAS provides image compression, conversion, streaming, and integration into Service-Orientated architectures.
On the client side, IAS provides a high-performance, user-friendly interface for viewing and chipping streamed imagery.
These tools use wavelet compression technology to convert images to JPEG 2000 in either JP2 or Certified NITF file formats.
The converted images can be requested and viewed on different platforms, regardless of screen size, processing capabilities, and bandwidth constraints.

14. IAS System IAS Server IAS Client WMS WCS JPIP REST HTTP / HTTPS
Enterprise
Viewer
Client
SDK
GDAL
ImageIO
IAS
Client Chipper
REST
Message Manager
HTTP /
HTTPS
Registry
Administration
J2K
Compressor
Transcoder
Discovery
Custom Clients
Streamer

15. IAS System - Server
Compressor - Compresses TIFF and GeoTIFF data to JPEG2000 with support for multiple profiles to meet a variety of compression needs.
Server Registry - A simple registry based on the Atom publishing protocol for registering datasets and disseminating available data, metadata and associations via HTTP or HTTPS.
JPIP Streamer - Enables your application server to stream imagery via JPIP over HTTP or HTTPS to any JPIP-enabled viewer.

16. IAS System - Server
IAS Web Coverage Service (WCS) - Provides standard WCS interfaces to create, register and retrieve imagery for clients that are not JPIP enabled
IAS Web Mapping Service (WMS) - Provides standard WMS interfaces to create, register and retrieve imagery for clients that are not JPIP enabled

17. IAS System - Client IAS Viewer IAS Client Chipper Custom Clients
Freely available
View data from any JPIP stream
View associated metadata from an IAS Server
Small download using Java WebStart
IAS Client Chipper
Additional cost plug-in to IAS Viewer
Save a ‘chip’ as a compliant NITF or GeoTIFF image at user-specified resolution
Custom Clients
Access registered images through REST eg … using the netURL class in IDL

18. IAS System - Client

19. New Features Support for basic vector feature data
Register vector data (GeoJSON format) with server
Stream point, line or polygon features with imagery
IAS Viewer support streamed vector data
IAS Mobile viewer for Android
Zoom and Pan
Show co-ordinates
Available as an independent Android App or a component to enable existing Apps
Supports both phones and tablets

20. IAS Android Client

21. IAS System Specifications
IAS Server Version 2.1
Operating systems,
Red Hat 5.x (linux 2.x)
Windows XP, Windows 7
Solaris 10
Application Servers
Jboss Final
GlassFish 3.1.1
Java
JAVA JDK 1.5+
Databases
PostgreSQL
Oracle
MySQL
IAS Client Version 2.4
Operating systems,
Red Hat 5.x (linux 2.x)
Windows XP, Windows 7
Solaris 10
Java
JAVA JDK 1.5+

22. IAS Demo

23. Summary IAS provides immediate access and viewing of large imagery
Not constrained by bandwidth
Works over existing communication links to a variety of clients – from desktops to handhelds
IAS is based on open standards and can be deployed into a variety of enterprise architectures
IAS – Geospatial imagery where you need it, when you need it

24. info@exelisvis.com Clive.cook@exelisvis.com www.exelisvis.com
Thank You
© 2011 Exelis Visual Information Solutions, Inc.