ed in this
onent,
reflecting
Gaussian,
th angles,
= n+i
eometric-
ger Zenith
Meister et
(1)
nt (unit is
reflection
r internal
sity of the
scattering
- and pp-
entation).
| tab. 1 for
the error-
larization
nple 'Red
ss „DD
S 0; y
f the "Red
vell as the
Iso covers
s between
be. Better
| far better
the result
o given in
ralon' and
and 4.2 %
ith angles
not cover
parison of
‘the result
1eglected.
The total
(2)
| averaged
ion of the
el and f; the
A. Rothkirch
Spectralon; ss 30° Spectralon, ss—-pol: 0459 Spectralon: ss—pol: 6= 55° Spectralon; ss—pol; 0— 65?
ep Ooo TTT FE 4 SRE M pec Qion, SS po, 0, oJ
0.10] |
/
0.15 / | 0.6 | 1
0.08} | J | |
E ser "m ul = | rm |
de Ti^ Ü / / ] A
5 Im r : f Cus |
= 0.06 = 0.10 n Zn d | Zo
u e jl | 5
X Qr j! [n | ( 1
(n [28] mm + e y hs / i
0.04 7 |! l |;
0.05 | j "m nl ! J
: T jid iE /
À ri /
0.02 7 A 1 i y
lr
0.00 La iiL ie O00 csv ty, 0.0 l 0.0 |
-50 0 50 -50 0 50 —50 0 50 —50 0 50
Viewing zenith [deg] Viewing zenith [deg] Viewing zenith [deg] Viewing zenith [deg]
Specti alon; pp—pol; é= 30° Spectralor Dp-—pol 8z 45" Spectralon; pp—pol: = 55° Spectralon; p —pol; f= 65°
gore. | OAs 1 Toor 7) 0.20 St 0.4 :
| |
| | f | | | | | 0.15} n
oc! | exu iil | il |
= r [mrt T | / t I
T | ^ | / M |
— 00 eu 010}. - qu Bt 03.2 | 1
= f C "ipe 5 |
a a ac | r |
© aq e en V
0.04 0 ( )
/
0.05 1 mm ——
0.02
|
0.001 bad O.00 [LLL eL P.00 fiat + DOI Lea N]
( 0 0 > 0 50 7:50 0 50 —50 0 50
Viewing zenith [deg] Viewing zenith [ leg] Viewing zenith [deg] Viewing zenith [deg]
Red roof; ol; 8 0° Red roof; pol; 0,2 45° Red roof, ss—pol 0= 55° Red roof, ss—pol d, 65°
OA TTT rT) TT Te py OAT Try eem 0877 EM am
| |
|] |
il | |
|J d
I | |
|] | | 0.€
U U | Y |
| | I n
M | — | = gp |
| ao
>” | : | | = J s |
cd | ea — / — C4
|
u | | LL. | L |
5 0.06} Me | | s | : |
© ly | | 1 tn V am |
| I V Ii
1 + | 1 / /
& | ii J 0 /
| y /
).( | x ,P A
| | or?
00 Ls A az ON U0 ca Li Gol nu
( 50 50 0 50 —50 0 50
NIN I [ i j] Viewing zenith [de gq] Viewing zenith [de g] Viewing zenith [deg]
Red roof; pp-p 0 Red f; pr ol: 6 45° Red roof; pp—pol; 8= 55° Red roof: pp—pol: 8= 65°
| ul
| ue | li | 0.0 | 1
oe a T PLU / 0 |
| rmi | |
— | | — Por | E |
% | 0.067] I Ü |
f | Lh S
T7 0:04 | — | — —) 10 |
ô | | e e |
© t a 4 © 1
| /
| lj Á
| lu -— |
| 005t+ 727 i
|
| | | 3
Reboot tte) 0.00 LLL AL cL LL Lci 1 J Ol iei eed 0.00 NE
( t c £ ( 50 0 50 -50 0 50
lewing zenith | je j] ewina zenith [de j] Viewing zenith [de q] Viewing zenith [dea]
Figure 3: Measured BRDF values in the principal plane at like-polarization. Within a row the incident zenith angle 0; was
varied, the rows differ in measured polarization state (ss resp. pp) and measured sample. Measurements are indicated by
error-bars, the solid line gives the result from the fit to the model (coefficents see table 1). Negative viewing zenith angles
correspond to backward scattering direction.
International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B3. Amsterdam 2000. 781
