the use of lapan · 2007-12-19 · lapan-tubsat video as potential earth observation data is under...
TRANSCRIPT
THE USE OF LAPAN
THE USE OF LAPAN-- TUBSAT
TUBSAT
SATELLITE VIDEO DATA
SATELLITE VIDEO DATA
FOR EARTH OBSERVATION
FOR EARTH OBSERVATION
W.hasbi
W.hasbi , R.
, R. Widyastuti
Widyastuti
[email protected], , [email protected]
National Institute for Aeronautics & Space-LAPAN
INDONESIA
Remote sensing data
Remote sensing data*)*)
Image Type
Price / scene Pixel size
NOAA AVHRR $50-90
1 km
Landsat MSS $200-1000
80 m
Landsat TM
$425-4400
30 m
SPOT
$1800-3000
10-20 m
Aerial photos
$20-40 + flight < 1 - 15 m
Space photos
$0-25
Variable
Space Video
..?
Variable
*) Office of Earth Sciences, NASA Johnson Space Center Lockheed Martin Space Operations
Advantages of space video over other
Advantages of space video over other
remote sensing data
remote sensing data
��Low cost
Low cost
��Resolution can equal or exceed SPOT
Resolution can equal or exceed SPOT
��Can be combined with other data and
Can be combined with other data and
maps using existing image analysis
maps using existing image analysis
and GIS software
and GIS software
��Long
Longtime series
time series
Cons: Space
Cons: Space Video
Videoare more variable
are more variable
than data from robotic satellites
than data from robotic satellites
��Resolution
Resolution
��Vignetting
Vignetting
��Exposure and Illumination
Exposure and Illumination
��Coverage areas
Coverage areas
��Cloud obstruction
Cloud obstruction
��Look angles
Look angles
��Usually needs to be digitized
Usually needs to be digitized
Mission Characteristic
Mission Characteristic
GROUND STATION
PC
Co
ntr
ol
Vid
eo
Im
ag
es
Ca
me
raA
CS
OPERATOR
OPERATOR
Vid
eo
Ima
ge
sA
ng
ula
r
Ve
loc
ity
Interactive attitude maneuvers
LAPAN
LAPAN-- TUBSAT COVERAGE
TUBSAT COVERAGE
Image Acquisitions Scenario
Image Acquisitions Scenario
Gro
un
d
tra
ck
Re
gio
n t
o
be
im
ag
ed
12
3
+Z
tra
jec
tory
1. Target Locking Scenario
High ResCam:
-Res: < 5 Meters
-Swath : 3,5 Km
Low ResCam:
-Res: < 200 Meters
-Swath : 81 Km
2. Nadir Pointing Scenario
3. Oblique Pointing Scenario
Lo
wO
bli
qu
eH
igh
Ob
liq
ue
Nea
rV
erti
cal
Image Acquisitions Scenario
Image Acquisitions Scenario
High ResCam
Low ResCam
LAPAN
LAPAN-- TUBSAT Video
TUBSAT Video Processing
Processing
Studies
Studies
Framing & Stitching Process
Image Enhancement &
Geo reference process
Could be directly interpreted
as a survaillance video
Overlay Example with LandsatImage
LAPAN
LAPAN-- TUBSAT Video
TUBSAT Video
Processing
Processing
Unsupervised Classification
Next studies
Next studies ……
��Framing & classification method
Framing & classification method
updating
updating
��Making 3D image generated from
Making 3D image generated from
LAPAN
LAPAN-- TUBSAT video
TUBSAT video
��Studying on image geo reference impact
Studying on image geo reference impact
on different satellite attitude oblique to
on different satellite attitude oblique to
find better geo referrence process
find better geo referrence process
Future micro satellite missions…
Conclusions
Conclusions
��LAPAN
LAPAN-- TUBSAT Video
TUBSAT Videoas potential earth
as potential earth
observation
observationdata is under extensive studies
data is under extensive studies
––dynamic change, ship monitoring, volcano, etc
dynamic change, ship monitoring, volcano, etc
––studying
studyingand monitoring land use change
and monitoring land use change
––incorporation into existing GIS systems
incorporation into existing GIS systems
��This is particularly appropriate in cases
This is particularly appropriate in cases
where cost is an important factor
where cost is an important factor
––low budget
low budget
––high number of images
high number of images
––regional scale
regional scale
Conclusions
Conclusions
When all you have is a hammer,
When all you have is a hammer,
every problem looks like a
every problem looks like a
nail.
nail.
AND
AND
Don
Don’’ t use a baseball bat to swat
t use a baseball bat to swat
flies.
flies.
THANK YOU….