Advanced image processing systems usually have such transformations 
implemented in hardware which reduce the the time consumption to 
minutes. ) 
Such a registeration has only to be done once for an image. Then 
different applications are possible using this image either in 
combination with other map data or as an input the a map system. 
2.1 Production of image-maps. 
By image-map is meant a raster output that in addition to image data 
e.g. from a satellite contains selected features from a map. Today 
such image-maps have become increasingly popular as output from data 
processing systems. Such image-maps give an increased readibility of 
satellite images by showing roads, streams etc. that are not visible 
on the image. The user must have the same possiblity of selecting map 
features for such a raster output as when the user is making a plot to 
a pen plotter. This includes using text, symbols, hatching of areas, 
different line types etc. not as vectors but as raster data. 
2.2 Updating of maps. 
By using the classification programs of the image processing system, 
features of interest for updating may be extracted. These data may 
then be passed to the map information system where an update is done 
in the map data. 
2.3 Aid in classification 
Today image processing systems seldom gives real attention to 
"ancillary data” in the classification. Substantial improvements can 
be made in classification accuracy if such data as terrain, soil, 
urban areas from the mapping system etc are used in the classification 
process. 
3. SYSTEM DESCRIPTION OF A EXISTING INTEGRATED SYSTEM. 
An existing integrated system using remote sensing data and a 
geographic information system will be presented. The system as a 
whole consists of two parts where the data flow between the two 
systems has been facilitated by different program modules. The main 
reason for selecting such an approach for a total system is the 
different hardware used in image processing and mapping systems. 
(Image processing systems usually handle raster data that are kept in 
several frame buffers, while graphic systems as mapping systems keep 
the vector data in display lists which is an entirely different 
consept.) 
Another reason for this approach is that mapping systems are used in 
production processes while remote sensing systems often are a tool in 
research. The background of the people using such systems are 
therefore different. 
The systems used are the SysScan Map Information System and the Remote 
Sensing System from International Imaging System. 
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