Drone vs Satellite Imagery: Choosing the Best Platform
1. Inge Melotte / Vincent Tigny
ENVIRONMENTAL MAPPING
DRONES, AERIAL OR SATELLITE IMAGES?
28 june 2016
2. 2
Agenda
INTRODUCTION
DRONES: HYPE OR REAL
OPPORTUNITY?
THE LATEST TRENDS IN
SATELLITE OBSERVATION
HOW TO CHOOSE THE
BEST PLATFORM?
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
3. In a nutshell …
FLEXIBLE
SOLUTIONS!
SOLID
PARTNERS.
▶ Independent SME
▶ Created in 1994
▶ Based in Leuven &
Gembloux
▶ 55 geospatial experts
▶ Clients: governments,
multilateral organizations
and NGOs, industries
▶ ISO 9001 certified
4. GIS & AUTO DATA PROCESSING GIS APPS DEVELOPMENT
EARTH OBSERVATION LOCATION INTELLIGENCE
4
A unique profile !
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
5. 5
WHICH IMAGE best fits MY NEEDS?
Earth Observation Data
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
6. 6
SATELLITE IMAGERY &
ELEVATION PRODUCTS
Our EXPERTS help YOU CHOOSE !
FRESH COLLECTION
5 m 30 cm
3.000 EUR FREE
Vlaams Brabant
ENTIRE EUROPE
geoTIFF
MrSID
InfraRED
By the end
of next week
Recent imagery
Archive
Earth Observation Data
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
7. Provide evidences of the
bombing of Kunduz hospital
▶ No clue WHAT data and HOW to procure
▶ DETAILED enough and high QUALITY!
▶ FAST!
Observe remote locations
from your desk
Use case: International & NGOs
8. Select best route, locate and
design the transmission towers
▶ ACCURATE and RECENT characterization of
the TERRAIN
▶ PLS-CAD format
▶ ≠ project phases ≠ accuracy ≠ budgets
▶ Unreliable local surveyors and sometimes
zones not accessible for geopolitical reasons
Plan high voltage
overhead power lines
Use case: Utilities & Infrastructure
9. 9
Independence & Expertise
The RIGHT PRODUCT
For the RIGHT JOB
In the RIGHT FORM
Benefits
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
11. 11
Object-Based Image Analysis
COLOR but also SHAPE + SIZE + TEXTURE + RELATIONS
Information extraction Services
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
15. 15
Types of drones
WIDE VARIETY OF DRONE PLATFORMS:
FROM TOYS TO PROFESSIONAL TOOLS
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
16. Drones and the law
THE SKY IS NOT THE LIMIT
▶ Specific obligations for drone operators and manufacturers
▶ Four categories: recreational & low/medium/high risk
▶ Safety inspired, based on prior risk analysis
17. Diversity in drone sensors
Multispectral
RGBNIR
Others
LIDAR…
RGB
VIDEO
RGB
COMPACT
18. 18
▶ From simple visualization of images
▶ To stitching images together (mosaicking)
▶ To generation of an orthomosaic (orthorectification)
▶ And production of DSM & DTM (photogrammetry)
Post-processing of drone images
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
19. 19
EO expertise &
Application knowledge
FERTILIZATION RECOMMENDATIONS
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
20. 20
EO expertise &
Application knowledge
TREE CROWN DELINEATION
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
22. Drone capabilities & constraints
Coverage
Altitude
Spectral bands
Spatial resolution
Frequency
Sensor cost/size
Sensor stability
Battery performance
Digital Elevation Model
Positional accuracy
DRONE PLATFORM
SENSOR DRONE IMAGERY
23. Drone capabilities & constraints
Training
Capital cost
Drone crashing
Insurance
Area of interest
Authorizations
Human resources
Time from order to delivery
LOGISTICS
ECONOMICS & RISKS
Flexibility
24. Capabilities & constraints
Drone imagery
▶ + Cost-effective (smaller projects)
▶ + (Frequent) acquisitions on demand
▶ + Very high spatial resolution (cm)
▶ + Unaffected by cloud coverage
▶ - Small single-flight coverage
▶ - Restrictions by drone legislation
▶ - Operations susceptible to bad weather
▶ - Human resources needed
25. Aerial imagery
Capabilities & constraints
▶ + Large single-flight coverage
▶ + High spatial resolution (>7cm)
▶ + Broad spectral capabilities
▶ - Typically extensive (not for smaller
projects)
▶ - Image timing controlled by provider
▶ - Operations susceptible to bad weather
▶ - Flight approval required
▶ - Aircraft availability may be limited in
remote regions
26. Satellite imagery
Capabilities & constraints
▶ + Extensive coverage
▶ + Broad spectral capabilities
▶ + Sensor stability
▶ - Relatively low spatial resolution
(>30cm)
▶ - Image timing controlled by provider
▶ - Limited coverage in some regions
▶ - Imagery susceptible to cloud cover
27. Benefits of drones
27
▶ Higher spatial resolution
▶ Cloud free images
▶ Elevation data available
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
28. Limitations & GIM solutions
IMAGE
DISTORTIONS
ADAPTED
WORKFLOW
LOW SPECTRAL
QUALITY &
HETEROGENEITY
PER
HOMOGENEOUS
AREA
37. Innovative launchers
37
▶ Recovering parts
▶ Using different platforms: ISS, planes…
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
38. 38
Venture Capitalists
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
12% 52%For EO and Remote Sensing
Purposes
Between 2000and 2750Nano/
Micro-Satellites to be launched from
2016 to 2020
39. Booming!
UrtheCast
Terra Bella
Nor Star Space Data Planet Labs
Dauria
BlackSky Global
Hera Systems
OmniEarth
Axel Space
Aquila Space
MORE DATA, MORE INFORMATION, MORE OFTEN
HIGHER REPETITIVITY
Satellogic
40. 40
No tasking
VIEW. SELECT. DOWNLOAD.
New data access
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
41. 41
MAIN ASSETS: EXAMPLES FROM
GIM ENHANCED PORTFOLIO
Satellite imagery
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
42. GIM enhanced portfolio
42
K3, Manila, March 2015 - Sub-meter in the afternoon / New tasking at archive price
Planet, Naples, June 2016 - Daily nadir imagery by end 2016
TripleSat, Rimini, August 2015 - High spatial and temporal resolution
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
43. GIM enhanced portfolio
43
WV3, Sao Paulo, September 2014 - WorldView-4 true 30 cm imagery by mid-September
Iris, Paris, June 2016 - UltraHD full-color videos
KazEOSat-1, Madrid, June 2015 - Cost-effective high resolution
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
44. 44
GIM enhanced portfolio
WorldDEM - 12m globally off-the-shelf
Vricon 3D and DSM - 50 cm & 10m on demand
Nextmap - Europe @ 5m off-the-shelf
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
46. 46
Free and open data
DATA IS NO LONGER A PRODUCT,
RATHER RAW MATERIAL.
OPPORTUNITY FOR VALUE-ADDING SERVICES!
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
47. 47
Historical info & temporal evolution
ARCHIVE IMAGERY
SINCE THE 70TIES
TIME SERIES
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
48. 48
Consistent information
UNIFORM COVERAGE (RADIOMETRY,
ILLUMINATION, ANGLE, SEASONALITY, …)
LARGE AREAS COLLECTION
REGULAR UPDATE
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
49. 49
Rich and timely information
SPECTRAL INFORMATION
FAST DELIVERY
NO LOGISTICAL CONSTRAINTS
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
51. 51
Cloud cover
HIGHER REVISIT RATES
LIVE WEATHER DATA
DIFFERENT EQUATOR CROSSING TIME
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
60. 60
▶ Which parcels to skip?
▶ What issue in which field?
▶ Where to look in this field?
▶ Location, extent and severity of issues
▶ For informed decision
How do we make his life simpler?
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
70. HOW TO CHOOSE THE BEST PLATFORM
FOR YOUR APPLICATION?
Vincent Tigny
71. 71
▶ Your AOI: location, size, shape
▶ Your application / Information to visualize or extract
▶ Your constraints: timing, budget
▶ Your tools
Key elements to consider
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
73. Context & needs
LOCATE EVERY LAST CHILD TO INCREASE
THE EFFICIENCY OF VACCINATION CAMPAIGNS
73 GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016
74. Challenges
▶ Territory: > 3x
▶ Resolution: 50cm
▶ Size: 12 Tb
▶ Amount of structures to extract:
500.000 20.000 1.500
VOLUME
OF DATA
to be collected
and processed
76. Challenges
▶ Continuous data flow:
daily
▶ Immunization campaigns:
weekly
▶ Development of the image
processing chain: 3 weeks
▶ Fine-tuning the parameters:
1h/image
▶ Processing (with QC): 4,5 mois
VELOCITY
data collection
and use of the info
77. Achievement
▶ Cities, Villages, Hamlets,
Compounds, Huts, … all
connected to the road network (3
categories)
▶ Rivers and water bodies
UP-TO-DATE
operational map
that makes a difference!
78. 78
Unprecedented accuracy
Detection rate >95% and
consistency over the entire territory
EVEN THE SMALLEST SETTLEMENTS ARE DELINEATED!
GIM GeoTrends Seminar EO – Vincent Tigny / Inge Melotte - June 2016