The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008 
1200 
observation to the GCP, the accuracy and precision are fully 
meet the production requirements. 
Experiment 
1 
2 
3 
Num. of GCP 
8 
24 
64 
Num. of Check points 
128 
128 
128 
<To _left, pixel 
1.4 
1.1 
0.8 
CTo jright, pixel 
3.5 
3.0 
2.7 
Mean |P Y |, pixel 
1.7 
1.5 
1.2 
GCP 
(m) 
MeanxY±StdxY 
0±1.315 
0±1.126 
OiO.734 
Mean z ±Std z 
0±4.667 
0i4.331 
0i3.769 
Chec 
kpoin 
ts(m) 
MeanxyiStdxY 
0.123± 
1.286 
0.087i 
1.034 
0.066± 
0.955 
Mean z ±Std z 
1.414± 
5.177 
0.916± 
4.095 
0.875± 
3.822 
Table 1. Experimental results of the normalization process 
6. CONCLUSIONS 
This paper proposes a stereoscopic observation system capable 
of performing dynamic epipolar rearrangement, which is used 
to obtain geographic information from air photography. Briefly 
describes the pyramid image generation strategy and methods, 
memory pool technology is also involved. The concept of 
epipolar rearrangement and the integration operation of the 
entire process are investigated deeply. According to the 
experiment, a conclusion was drawn that adopt the strategy in 
this paper, a high accuracy and precision of stereoscopic 
observation can be achieved. 
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