holiday resorts is a significant problem in environment
t
Fig. 9. Thermogram and vision image municipal waste
damps, A-burning spot.
protection. It happens that they have got so called ,,wild"
outlets by pipes under the lake bottom several meters
from the shore. It is very difficult to identify it from the s-
hore. It is necessary to penetrate the area from a plane
at night when the wastes are being let into the lake or
after a short period of time when the procedure took pla-
ce. Only then is it possible to pick out thes activity. Inflow
of warmer polluted substances than water in the reservoir
enable its registration on thermograms fig. 10.
| : EU
LI=0.039ÿ CT=21.7°C LV- 45.7 RG=5.0
v=0.400 21:47:26 94/07/12 AP=0
Fig. 10. Thermogram of a part of a lake with contamina-
ted water surface. A-place of contamination.
3. Conclusion
TVDS is a system of different applications with the po-
ssibility of digital processing. As the system is open there
is a wide range of working it out in different programmes.
The results may be presented in a qualitative or quantita-
tive way. Percentage histogram in each thermogram can
be used for the determination of its thermo-area. Four
different contouring filters in the programm give the po-
ssibility of their regulation and obtaining a required con-
tour of an analysed object. Coordinates of bearing vektor
enables precise localization of discussed elements of the
120
terrain. Using the possibilities of the programme, having
a thermal image there is a possibility of obtaining real
temperature of the investigated object or determination
its emission coefficient. Colour scale of temperature re-
gistered at each thermogram is given eith accuracy of
0,01°C for programme calkulations and the accuracy of
determining temperature by means of TVDS is 0,1°C.
There is still lack of automatic radiometric and geometric
correction of the image. At present TVDS can be used for
non-topographic research or for investigations with lower
accuracy of point mapping.
BIBLIOGRAPHY
1. Lubecki, A., 1995. Aerial thermography in the protec-
tion of environment. |l International Workshop on Ad-
vanced Infrared Technology and Applications. Capri -Italy
2. Lubecki, A., Kijowski A., Pawuta A., Bednarek R., Or-
czewski W., 1996. Aerial thermography in soil protection
presented as anexample of contamination by petroleum
compounds. Z.N. ART Olsztyn - Poland.
3. Wigcek, B., Grecki, M., Pacholik,J., 1993. Extention of
Thermal Image System by Visual Camera Interface. Proc
Conf. Advanced Infrared Technology and Application,
Casa Malaparte, Capri-ltaly.
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B1. Vienna 1996
THE
KEY
ABST
This |
It is t
suppo
buildii
theore
the de
motio
of con
of dat
an ine
recon:
KUR
In die
nahm
weiter
Daten
wende
Bewe;
vorge:
gungs
Systet
hohe
Erzeu
von G
1.1
Photc
possil
datas:
[GME
Input:
from
mode
street
aerial
buildi
1.2
Comp
lens c
and [/
ric se
The |;
lite sc
[DLW
