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Restitution of LANDSAT - MSS Imagery 
Using an Analytical Plotter of the 
Federal University in Curitiba/Brazil 
Sony Cortese Caneparo 
Universidade Federal do Parand, Curitiba/Brazil 
Hans - Peter Bahr 
Universität Karlsruhe (TH), Bundesrepublik Deutschland (FRG) 
Commission II 
Background 
Since more than 12 years, a Master Course in Geodesy and Photogramme- 
try is offered at the Federal University in Curitiba (Paranä/Brazil). 
This Course is the base for a project of technical collaboration, 
established by the Federal Governments of Brazil and Germany, starting 
in 1981. In order to allow high quality education and research, 
beside other instruments,a ZEISS PLANICOMP C 100 Analytical Plotter 
System was installed, including a HP 1000/45 processor and a DZ 7 
plotting table. 
Differing from Industrial Countries, Third World Countries have to 
make in a different way use of high sophisticated technology. Conse- 
quently, the Planicomp System in Curitiba is extensively used, 
processing even geodetic data (Doppler) and data from electronical 
tacheometers,apart from "classical" photogrammetric tasks like Bundle 
Block Adjustment and photogrammetric mapping. Having no image pro- 
cessing system available, remote sensing data too was processed at 
the analytical plotter, though this instrument is not specificly 
designed for that application. This, however leads to many interesting 
and useful results, which are to be presented in this paper. : 
Use of LANDSAT - MSS Data in Brazil 
Brazil was the first nation outside the USA to build a LANDSAT recei- 
ving station in the center of gravity of the South American continent. 
Originally digital, LANDSAT MSS data pushed the development of digi- 
tal image processing methods in the whole world. In Brazil a special 
image processing laboratory was established at the INPE (Instituto 
Nacional de Pesquisas Espaciais) in Säo José dos Campos, 250 km south 
of Rio. Being a central institution in a huge country, it can of 
course not serve adequately all potential users of digital MSS pro- 
cessing. 
There are two ways out of that situation. First, any local institution 
may use its own central computer for digital image processing (e.g. 
BERUTTI 1984). Second, the user simply works with the photographic 
MSS imagery offered by INPE. Up to now the latter option is dominating 
and actually having enormous important applications in Brazil, even 
if only applying visual interpretation methods. 
Processing photographic MSS imagery using a photogrammetric stereo- 
plotter has yet not be done frequently (one exception see CLERICI 1980) 
though there obviously exist some advantages: The extraction of 
semantic image information has to be done visually, however the result 
fits geometrically to a map of arbitrary scale,and specific areas can 
be simply measured. Because of a rigorous coordinate reference system, 
temporal image series can be mapped without difficulty (see ROCHA 1983).