university of pavia, italy ticinum aerospace, pavia, italy...
TRANSCRIPT
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Satellite and Ground Data to Slash Risk Uncertainty
A spin-off company from the University of Pavia www.ticinumaerospace.com ESA I-week – Frascati 15 Nov 2018
Fabio Dell’AcquaUniversity of Pavia, Italy
Ticinum Aerospace, Pavia, Italy – a spin-off company
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OUTLINE
• Who we are
• The problem - or the market opportunity …
• Our solution - and our marketable service …
• ESA Kick-Start Activity CountFloors
• The Groningen service case
• Conclusions and future outlook
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WHO WE ARE
A spin-off company from the University of Pavia www.ticinumaerospace.com
Ticinum Aerospace (TA) is a spin-off company of the University of Pavia
Based on three main pillars:
• Big Earth-Observation Data
• Large-Scale Machine and Deep Learning
• Smart Geospatial Data Analysis
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A spin-off company from the University of Pavia www.ticinumaerospace.com 4
RISK MODELLING
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Risk models are incrediblyinformation-hungry!
For accurate risk assessment,all the three components of riskneed to be knownwith sufficient confidence
Data is frequently difficult to access,or simply non-existing …
RISK MODELS
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Hazard
Risk
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THE PROBLEM
A spin-off company from the University of Pavia www.ticinumaerospace.com 6
Re/Insurance companieslack building-level data for
risk/vulnerability/exposure assessment
They use large-scale statistics as proxies
ESA I-week – Frascati 15 Nov 2018
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AI-BASED FRAMEWORK
Opportunity created by wide availabilityof satellite data and georeferencedground-level images of urban areas.
A framework could be designedto tackle the information need
We called the framework CountFloors
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Picture from:
Iannelli, G.C.; Dell’Acqua, F. Extensive Exposure Mapping in Urban Areas through Deep Analysis of Street-Level Pictures for Floor Count Determination. Urban Sci. 2017, 1, 16.
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STREET-LEVEL DATA
The CountFloors service can automatically extract building features by analyzing street-level pictures.
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FEATURES
A spin-off company from the University of Pavia www.ticinumaerospace.com 9
All visible exposure and vulnerability proxies can be automatically identified
Examples are:
• Number of floors
• Occupancy
• Trees
• Roof shape
• Maintenance status
• Basements
• Materials
• Fences
• Stairs
• …
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THE PRODUCT
A spin-off company from the University of Pavia www.ticinumaerospace.com
A city-wide / region-wide GIS layer with building footprints and all the required attributes
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PRODUCT EXAMPLE
A spin-off company from the University of Pavia www.ticinumaerospace.com
Milan (Italy) Manila (The Philippines)
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PRODUCT EXAMPLE
A spin-off company from the University of Pavia www.ticinumaerospace.com
Thematic Map representing the buildings with/without basements in Milan, Italy
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PRODUCT EXAMPLE
A spin-off company from the University of Pavia www.ticinumaerospace.com
Thematic Map representing the density of ‘graffiti/murals’ within the city of Milan, Italy (Administrative boundaries)
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ESA KICK-START ACTIVITY
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https://business.esa.int/projects/countfloors• «Space for Municipalities» call
• Cooperation with the Municipalityof Pavia, Italy
• A formal agreement has beenreached and made officialat the beginning of November 2018
• Funds allocated by the ItalianSpace Agency, whose support isgratefully acknowledged here
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FIRST CUSTOMER
A spin-off company from the University of Pavia www.ticinumaerospace.com
TA has been contracted to extract, and measure, risk-related features in urban area in the Dutch province of Groningen
The requested features are:
• Number of floors and its variants (e.g. ground-floors, attics, etc..)
• Presence of masonry chimneys
• Building openings (attribution of an empty-to-total area)
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EXPOSURE DATA
A spin-off company from the University of Pavia www.ticinumaerospace.com 16
Almost 150 k buildings to be analysed and labelled
No data on number of floors
No data on chimneys
Few data (5%) on building openings, dating back 10 years
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IMAGE PROVIDER
Google Street View was discarded due to licensing policy issues.
We searched for an alternate provider and found the Dutch company Cyclomedia in Zaltbommel (NL) offering a large and deep archive of multitemporal acquisitions on the Netherlands and in other locations
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https://www.cyclomedia.com/
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SENTINEL-2 DATA ON GRONINGEN
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URBAN MASK
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STREET-LEVEL IMAGE ACQUISITION POINTS
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SATELLITE-FILTERED ACQUISITION POINTS
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STREET-LEVEL IMAGES
A spin-off company from the University of Pavia www.ticinumaerospace.com 22
The list of acquisition points has been provided by Cyclomedia
These have been automatically filtered based on targeted building locations
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STREET-LEVEL IMAGES
A spin-off company from the University of Pavia www.ticinumaerospace.com 23
Raw images acquired by Cyclomedia are colored in blue
Filtered images are colored in orange
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SAMPLE IMAGES
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NUMBER OF FLOORS
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MASONRY CHIMNEYS
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BUILDING OPENINGS
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FINAL RESULTS
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92.5%
Accuracy
96%of targeted
buildings enriched
Positive
customer feedback
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FUTURE DIRECTIONS
A spin-off company from the University of Pavia www.ticinumaerospace.com
• Go global - regional data providers needed
• Expand to other markets – real estate, urban maintenance
• Explore NRT applications (e.g. pot holes mapping)
• Looking forward to future hyperspectral missions to incorporate material information into building labellings
• Last but not least – scientific use: creating annotated data for training of ML algorithms in classification of satellite data
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THANK YOU!A spin-off company from the University of Pavia www.ticinumaerospace.com ESA I-week – Frascati 15 Nov 2018
Fabio Dell’[email protected]