Presentation on theme: "Image Access Solutions An Overview of IAS Image Compression & Streaming Technology Clive Cook The information contained in this document pertains to software."— Presentation transcript:
Image Access Solutions An Overview of IAS Image Compression & Streaming Technology Clive Cook The information contained in this document pertains to software products and services that are subject to the controls of the Export Administration Regulations (EAR). The recipient is responsible for ensuring compliance to all applicable U.S. Export Control laws and regulations.
Introduction The problem, 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
The Pull Approach What is it? 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 …)
JPEG 2000 Overview Standards based, so multi client, eg … 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
JPEG 2000 Compression Example: 8-bit RGB Colour Photo Raw Image: cols x rows x 3 bands x 8-bit 1072 MB original file size
JPEG 2000 Compression Example: 8-bit RGB Colour Photo Raw Image: 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%) Example: 8-bit RGB Colour Photo Raw Image: cols x rows x 3 bands x 8-bit 1072 MB original file size
JPEG 2000 Compression Example: 8-bit RGB Colour Photo Raw Image: 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%) Example: 8-bit RGB Colour Photo Raw Image: cols x rows x 3 bands x 8-bit 1072 MB original file size
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.
sub-frame enlargement with digital zoom –Original image = 13.5K x 13.5K x 24 bits/pixel (530MB) –JPEG 2000 compressed to 10:1 (53 MB) MB Data Transfer R4 image displayed (999KB / 1.8%) R2 image sub-frame (295KB / 0.5%) sub-frame enlargement digital zoom R0 image sub-frame (30KB / 0.06%) IAS reduces the total data transmitted to 1,324 KB (2.4%)
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
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.
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.
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
IAS System - Client IAS Viewer 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
IAS System - Client
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
IAS Android Client
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 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+
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