nodel is ob-
a continuous
by
Grauwert
9
( ) 80 4
60 1
| 40 |
20 -
fi x
0 ; ; ; E ; Zeile
0 80 160 240 320 400 485 560
Fig. 10: Definition of window for Fig. 11: Mean values of lines
Zeile regression
Grauwert
——— Spalte
80 560
80 1
(upper)
60 den eth AS ANA AA
us image 40
mean 201
0 t T T T T T Zeile
0 80 160 240 320 400 480 560
Fig. 12: Result after SRF Fig. 13: Profile of row after SRF
ined by the
RESULTS AND DISCUSSION
The accuracy of the results is controlled by a comparison with ground-truth boat
(10) measurements of the temperature with radiation and bucket thermometer readings.
An increase of accuracy can be seen in table 1 for the use of laboratory calibra-
tion and atmospheric corrections especially with a SRF-prefiltering. The data used
hows the for laboratory calibration were obtained more than one year after image recording.
di Scan- Precise and simultaneous laboratory calibration data seem to be very necessary for
à quantitative evaluation. The choice of another emissivity (which was not measured
here) would change only the systematic error and not the standard deviation, as
141
eu gus
E > <
v X a 0 SCO OR es —