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APPLICATION MAPPING 
; Complete Differential 
Primary mapping If DTM available -— 
Re-mapping } — 
Revision — Of exisiting 
Upgrading — | data bases 
Thematic mapping mem Using an existing data 
base 
  
Table 3: Applications of AMP 
In contrast to revision (or updating) upgrading implies addition of new 
items and/or removal of non-relevant information. Thematic mapping con- 
cerns selective acceptance (or rejection) of certain items in an existing 
data base, and addition of new specific thematic items. Typical for dif- 
ferential mapping applications are the common operations, i.e., selective 
extraction, removal, and addition of new information. 
4. Evolution of mono-systems 
The following review concerns the general line of the evolution. It does 
not pretend to present complete historical coverage because the available 
information is fragmentary and thus incomplete. 
Conceptually, it is possible to differentiate between mono-plotting from 
geometrically transformed images and from primary (original non- 
transformed) images. 
Transformed images can be: 
- Rectified: on a single plane 
by two or more height zones 
by inclined facets (two stage transformation) 
— Ortho-transformed (using terrain relief data). 
  
  
  
Primary images can be used for: Year 
— Facet rectification (one stage) 1955 
— Line rectification [5] 1972 
— Analytcal monoplotting [6] 1972 
— All digital mono restitution [10] 1984 
  
Digital techniques for mapping from primary images involve geometric 
transformation which can be performed in real-time or delayed. 
Differential heights of the object points from a DTM surface can be in- 
cluded in this transformation [9]. 
IIT AMP SYSTEM DESCRIPTION 
The following description concerns the links between the main process 
stages, equipment components and system architecture, software structure 
and modules, input-and-output, and the AMP procedure. Special attention 
is given to the image to DTM surface transformation, and to some further 
extenstions and refinements of the system. 
l. Links between process stages 
The main process stages (i.e., information collection and conditioning, 
management and processing, and presentation and communication) can be 
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