796 
graphics height-editing facility which will enable an oper 
ator to interactively adjust the derived height for anoma 
lous points or areas where the computed results are incor 
rect. The display software will allow a three dimensional 
rendering of the height data to be rotated to enable the 
operator to observe the data from different perspective 
points in real time during the editing process. 
4 Acknowledgements 
The authors wish to acknowledge the continuing support 
of CCRS in the development of processing software for 
MEIS imagery and the support of OCRS for the evalu 
ation project carried out by R/SMT. They also wish to 
thank other participants in the software development over 
the past several years, in particular, Rod Jones of R/SMT 
and Lidia Hak and Bruce Luneburg, both presently un 
der contract to CCRS, whose past and present efForts 
have made this paper possible. 
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