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Presentation on theme: "Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of."— Presentation transcript:

1 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Use of Space Borne SAR for Change Detection for Public Safety Presented by Warren Cartwright Product Manager, MDA Geospatial Services INFORMATION SYSTEMS RESTRICTION ON USE, PUBLICATION OR DISCLOSURE OF PROPRIETARY INFORMATION AND IMAGES This document contains information and images that are proprietary to MacDonald, Dettwiler and Associates Ltd. (“MDA”), to its subsidiaries, or to third parties to which MDA may have legal obligations to protect such information or images from unauthorized disclosure, use or duplication. Any disclosure, use or duplication of this document or of any of the information or images contained herein for other than the specific purpose for which it was disclosed is expressly prohibited, except as MDA or such appropriate third party may expressly agree in writing. MDA is a trademark of MacDonald, Dettwiler and Associates Ltd. COPYRIGHT © 2013 MDA, subject to General Acknowledgements for the third parties whose images have been used in permissible forms. All rights reserved.

2 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA About MDA Geospatial Services 2 Provides information solutions derived from imagery collected by satellites, aerial platforms, and other sources Designs and delivers near real-time solutions based on geospatial data for operational environments Delivers operationally-responsive, 24/7 support for just-in-time decision making Leading global provider of geospatial information solutions to customers with operational needs for essential decision making The market leader in the operational delivery of time-sensitive, business process-specific, geospatial information Come see us at booth #30!

3 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Use of space borne SAR for large area, high resolution monitoring – The “change detection machine” Analogy with surveillance cameras SAR benefits and requirements Application examples of large area repeat coverage – Slope stability hazard monitoring (landslides) – Flood monitoring – Asset security ( Infrastructure monitoring) Overview and Agenda 3

4 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Analogy: Surveillance Cameras – Automatic Detection of Moving Objects Goal: Detect moving objects from a sequence of images from a fixed camera – Background: static scene – Foreground: moving object Approach: Detect the moving objects as the difference between the image of the current image and the background image 4

5 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Analogy: Surveillance Cameras – Automatic Detection of Moving Objects Automatic surveillance using optical imagery from space is virtually impossible due to – Lighting conditions – Cloud cover – Changes in geometry Automatic surveillance using SAR is an ideal solution because of – Independent of light and weather conditions – Reliable and exactly repeated geometry – Requires repeat coverage at sufficient resolution 5

6 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Synthetic Aperture Radar (SAR) Benefits Delivers reliable acquisitions – Unaffected by weather, darkness or other environmental factors – Year round coverage Provides unique sensitivity to environmental conditions – Proven ability to differentiate surface features Provides high-value InSAR-based services – Ability to see cm-to-mm level change over large areas – Surface movement and water level extents for Disaster Management Delivers the highest resolution change detection – Consistent and reliable – No atmospheric influence or weather impact 6

7 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA SAR Requirements for Land-based Change Detection Resolution of 5 m or better – Lower resolution provides good results when larger areas require monitoring Sufficient swath width to cover very large areas repeatedly Use of same (or almost same) geometry = stacks Use of imagery of difference as opposed to individual images Reduction of speckle noise level by temporal and spatial filtering 7

8 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Resolution (m) Swath width (km) MFW (SLC) FW W S SCN MF UFW SL UF SCW MF (SLC) MFW RADARSAT-2 TerraSAR-X COSMO-SkyMed Envisat ScanSAR Examples of RADARSAT-2 Modes for Large Area Land Monitoring 8

9 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Stacking for Temporal Analysis A Stack is a set of images taken at the same orbit having identical Beam mode and resolution Observation geometry SAR illumination source Stack-based approach allows Filtering of speckle noise from individual acquisitions Weather and day-light independence Spectacular improvements in precision, reliability, and efficiency SARamplitude Time - Δ dB 9

10 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA APPLICATIONS Use of Space Borne SAR for Change Detection for Public Safety

11 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA New Image Background Image Foreground Pixels Use of SAR for Public Safety: Suspended Landslide near Tanabe, Japan After initial instability during Typhoon Talas September 2,

12 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Clear delineation of changes caused by landslides…. Tanabe

13 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA MDA Flood Watch Guaranteed, routine monitoring and flood map products for Disaster Management and Disaster Relief Agencies 13

14 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA MDA Flood Watch 14

15 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Asset Security for Infrastructure Geohazards – Slope stability around critical infrastructure – Subsidence and movement beyond design thresholds Encroachment – Routine surveillance – Vegetation encroachment and maintenance – Human encroachment New construction, excavation and impact from other industries 15 Monitor critical infrastructure to provide early warning of potential environmental threats, effective management of deterrence efforts, and support of rapid response to critical issues

16 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA 16 Monitor high-risk areas for ground movement Signals potential landslide activity and/or pipeline subsidence Augments in-situ equipment to provide broad area coverage Regular surveillance for identifying vegetation concerns, new construction in or near pipeline, evidence of tapping, logging activity Incident response to provide responders with up-to-date view of situation and hazards Operational monitoring for system efficiency and emergency response Historical oil on water events over pipeline through archive imagery to help spot leaks from pipeline activities Geohazards Encroachment Undersea Leaks Asset Security Example – Pipeline Monitoring Pipeline ProblemTechnology SolutionApplication Approach

17 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA Space borne SAR is a natural source of data for global monitoring and surveillance RADARSAT-2 has the capability and capacity to provide solutions for large area land surveillance Applications for public safety include hazard monitoring and damage assessment Conclusions

18 Use, duplication or disclosure of this document or any of the information or images contained herein is subject to the restrictions on the title page of this document. COPYRIGHT ©2013 MDA THANK YOU! 18 MDA Geospatial Services Inc.


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