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- Stereo viewing 
- Handling of arbitrary image sizes 
- Real time zoom and roam 
- Sub - pixel measurement possibility 
- Vast set of photogrammetric orientation, adjustment 
and compilation software 
- Enhancement and feature extraction on-line 
- Automatic DEM generation (correlation) 
- Superimposition of 3-D graphics 
- On-line editing 
- IMAGE RECTIFICATION 
Images or maps may be transformed to any projection 
system. If a digital elevation model (DEM) is introduced 
orthogonal projections in arbitrary coordinate systems 
can be resampled. The mosaicing software enables the 
user to produce orthophoto maps from a series of 
adjacing photographs or satellite scenes. 
Beside these 3 main tasks a variety of input and output 
routines for images, DEM, maps and other data are existing. 
An interface for the ESRI Arc/Info geographic information 
system has been developed to export map data from the 
GIS, superimpose the graphics to the images or in 3-D to 
the stereo-model, revise the data and import it back to 
the GIS. 
The workstation is based on the image processing system 
GOP302 from STRUERS VISION AB. The host processor 
consists of a SUN 3/60^ supervisor processor with a 
20MHz MC 68020 CPU and 68881 floating point coprocessor 
running under UNIX 4.2 operating system. Special processors 
like the GOP (General Operator Processor) for fast complex 
filtering and correlation and the GTP (Geometric Transform 
Processor) for fast geometric transformations and resampling 
can be accessed via the VME bus of the system. Two 
identical display control units with a RAM memory of 1 
Mega pixel (20bit), a display window of 512*512 pixel based 
on a MC68000 processor and a real time operating kernel 
(MODULA2) controlling the images and on-line image proces 
sing functions are part of the system. Due to the limited 
size of the display window two DCU's have been selected 
each controlling one color monitor. Both monitors are 
assembled in one cabinet and looked at with a mirror