Integrated Photogrammetric Systems at 
Science Applications International Corporation 
Clifford W. Greve, Ph.D. 
Scott E. Webster 
KEY WORDS: Photogrammetry, Orthoimage, Integration, GIS 
Abstract: 
Science Applications International Corporation (SAIC) develops photogrammetric systems for a broad range of applications, 
varying from national intelligence applications, through military mapping, to commercial remote sensing and orthophoto 
production. The breadth of these activities provides opportunities for synergy between the various applications. Technology 
developed for the defense applications can be readily applied to commercial mapping and remote sensing applications, while 
production process experience gained from the commercial operations can be applied to better designed systems for the 
government agencies. 
1. INTRODUCTION 
The term "Integrated Photogrammetric Systems" 
implies many things to many people. At Science 
Applications International Corporation (SAIC), we consider 
the ingredients of an integrated photogrammetric system to 
be: 
e A common, simultaneous aerotriangulation 
procedure involving data from all sensor types 
Capability of viewing data from any 
combination of sensors in “stereo”, whether 
the human mind can fuse the data into a 
meaningful stereo image or not 
Capability of incorporating analysis in the 
spectral domain with analysis in the spatial 
domain 
Technology Path to Integrated Systems at SAIC 
   
   
    
   
  
DSW 
Complete 
Digital 
      
    
    
  
      
Tauranga 
District 
Civilian Applications 
Capability of generating orthophotography 
from any of the sensors which may be 
processed 
Capability to generate data directly into a 
geographic information system, or at least 
into a system which creates a data format 
which can then be imported to a geographic 
information system. 
SAIC has developed several systems which have various 
aspects of the above, mostly as a result of government 
development contracts. We have used the technology 
developed on these government contracts as a basis for 
additional development under internal funding to integrate 
the capabilities into the systems which we use today. 
  
      
     
   
  
Commercial 
Applications 
  
National Ne 
Digital Orthophoto 
Program 
(U.S. Geological 
Survey) 
  
   
     
  
  
State and 
Local 
Government 
  
  
  
123 
  
  
1994 1995 1996 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B2. Vienna 1996