fully polarimetric sar data utilization - jaxa...2 000 01#+j 0+#j1 ps pv pd pc 10log - 4 db- 2 db0...
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![Page 1: Fully polarimetric SAR data utilization - JAXA...2 000 01#+j 0+#j1 Ps Pv Pd Pc 10log - 4 dB- 2 dB0 dB 2 dB 4 dB S VV 2 S HH 2 T vol = 2 1 4 0 010 001 1 30 1550 570 008 1 30 15-50-570](https://reader034.vdocuments.us/reader034/viewer/2022042917/5f59a923e4e14d1d9c592727/html5/thumbnails/1.jpg)
Fully polarimetric SAR data utilization
Yoshio Yamaguchi
Ps Pv
Pd
4 scattering mechanisms
Ps Pd,Pv,Pc
2011年11月17日木曜日
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Provide imagesEasy to understand
for everybody
ALOS-2 What is important ?
Specific applications
Environmental changeDisaster monitoring
land slideearthquake
Agricultural applicationscrop productionCivil engineering
mapping
Continuation ofALOS-PALSAR
Polarimetric data
ResearchEducation
2011年11月17日木曜日
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At a glance! Example of 4-comp. decomposition
Google Earth Optical Image
ALOS-PALSAR Quad Pol Image
Ps Pv
Pd
Ps: surface scatteringPd: double bouncePv: volume scattering
2011年11月17日木曜日
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POLSAR image analyses
<Average>
Pauli Basis
Eigenvalue
Scattering Power DecompositionCovariance matrix Coherency matrix
Entropy, Alpha-angle, Anisotropy
Scattering matrix= Quad-Pol. data
Pd, Pv, Ps, Pc
VVHVHHColor-Composite
HH-VV, 2HV, HH+VV
λ1 λ2 λ3
HV Basis
HH, 2HV, VV
Ps Pv
Pd
volume scattering
double bounce
surface scattering
2011年11月17日木曜日
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General 4-component scattering power decomposition with Unitary transformation
all polarimetric parameters are accounted for the newly developed decomposition (G4U)
unitary transformation
Surface scattering
Double bounce
Volume scattering
Helix scattering
Scattering Power
expansion matrix
!2
! 0! * 1 00 0 0
1 "* 0
" "2 0
0 0 0
130
15 5 05 7 00 0 8
14
2 0 00 1 00 0 1
130
15 - 5 0- 5 7 00 0 8
12
0 0 00 1 #+ j0 +# j 1
PsPv
Pd Pc
- 4 dB - 2 dB 0 dB 2 dB 4 dB10 logSVV
2
SHH2
T vol =
14
2 0 00 1 00 0 1
130
15 5 05 7 00 0 8
130
15 - 5 0- 5 7 00 0 8
115
0 0 00 7 00 0 8
HV from oriented dihedral
Surface scattering
Double bounce
Volume scattering
Helix scattering
Scattering Power
expansion matrix
!2
! 0! * 1 00 0 0
1 "* 0
" "2 0
0 0 0
130
15 5 05 7 00 0 8
14
2 0 00 1 00 0 1
130
15 - 5 0- 5 7 00 0 8
12
0 0 00 1 #+ j0 +# j 1
PsPv
Pd Pc
- 4 dB - 2 dB 0 dB 2 dB 4 dB10 logSVV
2
SHH2
T vol =
14
2 0 00 1 00 0 1
130
15 5 05 7 00 0 8
130
15 - 5 0- 5 7 00 0 8
115
0 0 00 7 00 0 8
HV from oriented dihedral
with extended volume scattering model dihedral
dipole
T volhv = 1
42 0 00 1 00 0 1
etc
G. Singh, Y. Yamaguchi, et al, “Polarimetric SAR target decomposition with unitary transformation,” 2nd Intʼl POLSAR Workshop in Niigata 2011
2011年11月17日木曜日
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COLOR Code for Decomposed Image
Surface(Ps) Volume(Pv) Helix(Pc)Double bounce(Pd)
++ +
++ =
2011年11月17日木曜日
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G4U-3C (Pd,Pv,Ps)
G4U-4C (Pd,Pv,Ps,Pc)
Ps Pd Pv Pc
Ps Pd Pv
2011年11月17日木曜日
![Page 8: Fully polarimetric SAR data utilization - JAXA...2 000 01#+j 0+#j1 Ps Pv Pd Pc 10log - 4 dB- 2 dB0 dB 2 dB 4 dB S VV 2 S HH 2 T vol = 2 1 4 0 010 001 1 30 1550 570 008 1 30 15-50-570](https://reader034.vdocuments.us/reader034/viewer/2022042917/5f59a923e4e14d1d9c592727/html5/thumbnails/8.jpg)
G4U-4C (Pd,Pv,Ps,Pc) G4U-3C (Pd,Pv,Ps)
Ps Pd Pv Pc Ps Pd Pv
2011年11月17日木曜日
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2011年11月17日木曜日
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Ps Pd Pv Pc
2011年11月17日木曜日
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ALPSRP069210790-1.1A
39.747N140.976E
Mt. IwateMoriokaJapan
N
Ps Pv
Pd
©JAXA, METI
2007/5/13
Scattering power Decomposition
2007/3/28ALPSRP062500790-1.1A
Decomposed image by (Ps, Pd, Pv, 2x12 pixels, Re(T23)=0 rotation)
2011年11月17日木曜日
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2007/5/6 2007/11/6
Rotation2x12 pixel
ALOS PALSARQuad-Pol.
Scattering power
Decom-position
ChuetsuNiigataJapan
Ps Pv
Pd
2011年11月17日木曜日
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2008/2/6 2008/11/8 2009/3/26
T33 Rotation
2x12 pixel
ALOS PALSARQuad-Pol.
Ps Pv
Pd
Scattering power
Decom-position
ChuetsuNiigataJapan
2011年11月17日木曜日
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2010/3/192009/3/262007/3/21
T33 Rotation
2x12 pixel
ALOS PALSARQuad-Pol.
Ps Pv
Pd
Scattering power
Decom-position
ChuetsuNiigataJapan
2011年11月17日木曜日
![Page 15: Fully polarimetric SAR data utilization - JAXA...2 000 01#+j 0+#j1 Ps Pv Pd Pc 10log - 4 dB- 2 dB0 dB 2 dB 4 dB S VV 2 S HH 2 T vol = 2 1 4 0 010 001 1 30 1550 570 008 1 30 15-50-570](https://reader034.vdocuments.us/reader034/viewer/2022042917/5f59a923e4e14d1d9c592727/html5/thumbnails/15.jpg)
2011.1.23
Yunotani, Niigata
2011年11月17日木曜日
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Left: Before, Right: Afterthe earthquake and tsunami
2011年11月17日木曜日
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Conclusion for ALOS-2
It is very important to keep PLR as a routine mode
Continuation of ALOS-PALSAR Polarimetric data
Provide images, easy to understand for everybody
The polarimetric data provides all necessary informationthat cannot be achieved elsewhere
Full utilization method for PLR data is now established
2011年11月17日木曜日