182 
The calibration crossmarks were preliminarily eliminated 
from the photos and by means of the special mask the bright - 
ness matrices were smoothed for minimizing the effect of minor 
random defects 0 
The result of restoration of the relief of the selected 
area is shown in Fig 0 5#The height isolines are spaced 5 m apart. 
The design map was compared with the check one with the use of 
the network of control points 0 The mean square deviation of 
heights for the given area amounted to <o -± 4,5 m 
The check of the above -described method of making the 
topographic maps has shown its viability and applicability for 
mapping the territories which are uniform in optical terms 
(snow,sand) 0 
4 in The Peyhology of Computer Vision,P.H.Winston(ed.), 
McGraw-Hill Book Co„, ¡Jew-York, 1 1 5-1 55,1975* 
2.Ivanov A.I.,fashenov B.T.,Fedulin I.A. Culculation of bright 
ness of daytime clear sky in visible and infrared ranges of 
spectrum. Proceedings of the USSR Academy of Sciences.Phy 
sics of atmosphere and ocean.11(3),1975* 
3. Matiyasevich L«M.,Mikheykina T.I.,Svechnikov B.V. Technique 
for determining brightness and spatial - frequency charac 
teristics of terrain from aerospace survey materials e Inter 
national Symposium,Commission II,September 8-12,1990 Dresden. 
4. Rindfleisch T.,Photometric Method for Lunar Topography,Pho- 
togrammetric Engineering,32,No 0 2,262-276,1 966. 
method.Shown by solid heavy 
line is the contour of 2850m 
Scale - 1 : 10000 
Pig.5 Map of relief of best 
area made by photometric