Presentation on theme: "6/12/2014DigitalGlobe Proprietary1 An Overview of WorldView System Racurs IX International Scientific and Technical Conference October 6, 2009 Pawel Ziemba."— Presentation transcript:
6/12/2014DigitalGlobe Proprietary1 An Overview of WorldView System Racurs IX International Scientific and Technical Conference October 6, 2009 Pawel Ziemba
6/12/2014DigitalGlobe Proprietary2 DigitalGlobe Current Satellites QuickBird WorldView-1
6/12/2014DigitalGlobe Proprietary56/12/2014 Most Advanced Satellite Constellation Swath Width Avg. Revisit Slew Time Spectral Bands Resolution DigitalGlobe Satellites 16.5 km 2.4 days 62 seconds Pan + 4 MS 60 cm QuickBird 17.6 km 1.7 days 9 seconds Pan 50 cm WorldView km 1.1 days 9 seconds Pan + 8 MS 50 cm WorldView-2 (Q3-09) Collection 210,000 km 2 per day 750,000 km 2 per day 950,000 km 2 per day *Accuracy 25M CE90 6.5M CE90 TBD *At nadir on flat terrain Aggregate capacity of nearly 2,000,000 km² per day with intraday revisits
6/12/2014DigitalGlobe Proprietary6 WorldView-2 Has Completed Thermal-Vacuum Testing; On Schedule for Launch Sep/(Early Oct) WorldView-2 Is The First Privately-Funded Next-Gen Satellite In The Industry
7 7 Capacity and Coverage
6/12/2014DigitalGlobe Proprietary8 Most Advanced Satellite Constellation Aggregate Capacity of 1,910,000 km 2 per day – Intraday revisits-highest commercial resolution Faster, Broader World Coverage together with Satellite Collection Redundancy WorldView-2 Q with intra-day constellation revisit 8-Band Multispectral Panchromatic 950,000 km 2 per day WorldView-1 Leading Collection Rates Panchromatic 750,000 km 2 per day QuickBird High Operational Excellence 4-Band Multispectral Panchromatic 210,000 km 2 per day
6/12/2014DigitalGlobe Proprietary10 What does that really mean??
6/12/2014DigitalGlobe Proprietary11 ImageLibrary – Over 800 Million Square Kilometers of Submeter Coverage
12 Tasking & Agility
6/12/2014DigitalGlobe Proprietary13 Slew Time - Agility Comparisons WorldView-1 and WorldView-2 have: Control Moment Gyros (CMGs) to provide an acceleration more than 10X better than the competition Better Agility Improves collection efficiency Permits rapid collection of point targets and stereo Increases imaging capacity 9 seconds 300 km WorldView-1 ~400 km WorldView-2 9 seconds
6/12/2014DigitalGlobe Proprietary14 Entire North/South Korean Border captured in one pass
6/12/2014DigitalGlobe Proprietary15 DigitalGlobes Coverage North Korea Missile Launch April 5, 2009 DigitalGlobes WorldView-1 satellite imaged the flight of a North Korean rocket soon after its launch from the Musudan-ri launch facility.
6/12/2014DigitalGlobe Proprietary16 North Korea Launch Musudan-ri, North Korea WorldView-1 Image Date: April 5, 2009 Image Time: 11:31:16 Local N Rocket in Flight Smoke Cloud From Rocket Launch
6/12/2014DigitalGlobe Proprietary17 North Korea Launch Musudan-ri, North Korea WorldView-1 Image Date: April 5, 2009 Image Time: 11:31:16 Local N Cloud of Smoke From Rocket Launch Launch Pad (See next slide) Launch Pad (See next slide)
6/12/2014DigitalGlobe Proprietary18 Brush Fire From Launch North Korea Launch Musudan-ri, North Korea WorldView-1 Image Date: April 5, 2009 Image Time: 11:31:16 Local N Field Burned Days Before The Launch
6/12/2014DigitalGlobe Proprietary19 North Korea Launch Musudan-ri, North Korea WorldView-1 Image Date: April 5, 2009 Image Time: 11:31:16 Local Rocket Contrail N Rocket in Flight Sensor Flare Unha 2 launch vehicle with the Kwangyongsong 2 (Bright Lodestar 2) satellite (According to globalsecurity.org)
21 Accuracy Comparison
22 Accuracy Comparison
23 Accuracy Comparison
24 Spectral Characteristics
6/12/2014DigitalGlobe Proprietary25 WV2 Carries Unique Spectral Bands New MS Bands 6/12/2014DigitalGlobe Proprietary25 QB Pan MSI WV WV2 Pan MSI
6/12/2014DigitalGlobe Proprietary26 WorldView2 4 New Bands Coastal chlorophyll absorption, blue light scattering, water depth, true-color; will support coastline water depth studies based upon its chlorophyll and water penetration characteristics. Also, this band is subject to atmospheric scattering and will be investigated to examine atmospheric correction techniques. Yellow will be used to identify "yellow-ness" characteristics of targets, important for vegetation and turbidity applications. Also, this band will assist in the development of "true-color" hue correction for human vision representation. Red Edge aids in the analysis of vegetation and vegetative condition. Directly related to plant health revealed through chlorophyll production. NIR2 overlaps the NIR1 band may help with atmospheric correction, supports vegetation analysis and biomass studies.
6/12/2014DigitalGlobe Proprietary27 Coastal Mapping Accuracy –30 meter depth –1-5 meter geolocation –2-5 meter post spacing Spatial Resolution –2 meter GSD Geographic Coverage –Tropical and sub-tropical regions –Clear lakes –Clear, calm waters
6/12/2014DigitalGlobe Proprietary28 Land Use/Land Cover Identification RGB = NIR1,Red Edge, Red Pocomoke, MD Red Edge Yellow Band Additional spectral bands available with WorldView-2 provide additional separability (improved accuracy) in the characteristics and identification of Land Use and Land Cover features. See following slide…
6/12/2014DigitalGlobe Proprietary29 Improved Classification Accuracies QB Overall Accuracy 47.3% WV2 Overall Accuracy 76.5% Spectral Classification comparison applying the same generic signature library to both QB2 and WV2, with no corrections applied, using the same classification method.
6/12/2014DigitalGlobe Proprietary306/12/2014DigitalGlobe Proprietary30 Benefits of WorldView-2 Four New Bands HYDICE FR1 Imagery with camouflaged targets Brown Camo Netting Green Camo Netting Green Camo Painted Military Vehicles
6/12/2014DigitalGlobe Proprietary316/12/2014DigitalGlobe Proprietary31 NDVI-based Misses the green Camo Nets Red Edge-based Highest Contrast Results NDVIRed Edge Benefits of WorldView-2 Four New Bands
6/12/2014DigitalGlobe Proprietary32 Retinas Color-Sensitive Cone Cells Y UV C B G Y R RE NIR RedGreenBlue < Traditional B,G,R,Nir Sensor True Human Color
6/12/2014DigitalGlobe Proprietary33 Benefit of 8 Bands – Color Accuracy 6/12/2014and ITT Proprietary33 Truth 4 Bands
6/12/2014DigitalGlobe Proprietary34 Benefit of 8 Bands – Color Accuracy 6/12/ Truth WV-2 and ITT Proprietary
6/12/2014DigitalGlobe Proprietary35 Breaking News – A European Groundstation