International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B2. Istanbul 2004 
(State Bureau of Technology Supervision, 1991). This 
shows that the adjustment method mentioned in this paper 
has a commendably potential in photogrammetric point 
determination. 
5. SUMMARY 
. If multi-temporal aerial imageries covering the same area are 
acquired, this paper has verified theoretic correctness and 
practical feasibility of the thought that orientation parameters 
of new imageries can be determined and ground objects can be 
positioned by measuring the same points between the new 
imageries and the fixed imageries. It is of great significant to 
map revision, the update of geographic spatial information 
database and automatic change detection of imageries, and it 
shows potential of positioning ground objects by block 
adjustment without any GCP. 
ACKNOWLEDGMENTS 
The work described in this paper was substantially supported 
by a grant from National Natural Science Foundation of China 
(Project No. 40171072) and A Foundation for the Author of 
National Excellent Doctoral Dissertation of PR China (Project 
No. 200142). The authors would like to express our thanks to 
their energetic support. 
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