phenomenon 
estigate. See 
Legend 
  
rs used to Bezdékov - forest dynamics in years 
  
  
  
taking into 
inguished for — | 1970, 1976, 1984, 1988 
it means we | 
: 5 layers it is | [n] occurance of the forest in 
| 1970 1976 1984 1988 
| m ([u © = 
| [m] [m] [m] 
m [x © 
| =] [a] 
[m] M [m] 
[m] [m] [=] 
| E m 
[m] [u] 
[=] [m] 
one pixel in / [m] [=] 
[m] 
ages, 1,1 | [u] 
1e red, green | u Ll 
or synthesis. | [m] 
= 4,5 are | 
| Fig. 2 Temporal analysis of the area Bezdékov 
On the basis of the preceding considerations, it is for two layers per component and 
possible to achieve the set of equations for n - 6, 7, 8. 
When 6 - 8 temporal layers are analyzed we must 1 2 
compose each component separately. It actually means: Iz-Ti-Tiits du for k=12.....7 
€ 7 7 +1 7 k+2 > 
1 9 in the case of three layers per component, where Z 
ET - h =1,2,... 
[ sau ‚ where k=1,2,...,/ stands tor I; . 1: or I, 
n ai a2 b4 b2 bs C1 C2 C3 
4 0,75 0,25 0,5 0,5 0 0,25 0,75 0 
5 0,6 0,4 0,2 0,6 0,2 0 0,4 0,6 
  
  
  
  
  
  
  
  
  
  
  
Table 1: Coefficients of equations for n = 4, 5 
3.1 Statistical evaluation 
The computerized process using comparative point transform enables to evaluate qualitative as well as quantitative the 
development of temporai object along the selected temporal layers. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
year % decrement/increment | balance year number | decrement/increment | balance 
compared with in % of pixels | compared with 
the year before the year before 
| 1962 100 1962 30 576 
1970 108 -10 +18 90 1970 32 914 -3 029 +5367 1. 27 547 
1976 92 -24 +10 76 1976 28 164 -7 885 +3135¢..25020 
| 1984 110 -21 *41 79 1984 33 751 -6010] .*11597| 22154 
1988 121 -8 *18 92 1988 36 966 -2 787 +6 002 | 30 964 
Tab. 2: Bezdékov - statistical evaluation for 1962-1988 Tab. 3: Bezdékov - statistical evaluation in the number of 
| years in percentage - five time layers image pixels 
| 297 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B5. Vienna 1996