with GIS , computer science ,digital image processing, 
computer vision , aerospace science and expert 
systems, it has an unlimited life and a very brilliant 
future. 
References 
Li. D. (1992); From Photogrammetry to Iconic 
Informatics, ZPF, 1/92 P5—9. 
Li,D. and Gong J. (1991) : A unified Data structure 
based on Linear Quadtrees, presented paper to 
ISPRS conference on Digital Photogrammetric 
Sytems, September 3—6,1991 Munchen. 
Tomlinson, R. F. (1972); 1972 Geograhical Data 
Handling (Symposium Edition). UNE - SCO/ 
IGU Second Symposium Geographical 
Information Systems , Ottawa. 
Trinder ,J. (1991) ; Position Paper on Current Status 
and Future Prospects of the Society, Presented 
to Baltimore Council Meeting of ISPRS, 
March, 1991 Baltimore. 
Wang Zhizhuo (1991); Drastic Changes in the 
Devlopment of Photogrammetryand Remote 
Sensing. Address at the opening Ceremony of 
the international Symposium of the 58th FIG 
PC Meeting ,May 21st,1991 , Beijing. 
  
   
     
     
    
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orthophoto maps 
video products 
statistics 
  
  
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