279 
will 
this 
TECHNICAL - ECONOMICAL OPTIMIZATION OF SYSTEMS - 
PROCESSES OF PHOTOINTERPRETATION AND REMOTE SENSING 
ially 
are 
To obtain a maximum security of the technical optimization of 
processes, it appears that the risk is unable to satisfy the minimum 
rational economical parameters. To get out of this situation (or to 
increase the success chances, which may be extremely expensive, or to 
decrease the costs - way acceptable for the lowest level of program per 
ied out 
un 
tie un- 
rds and 
2 estab- 
ibilities 
forming-realization) a compromise can be made. Of course, there are 
numerous possibilities of discussions and of maximum strategy application. 
The application of binary linear programming, has been analysed 
in this sense, to minimize the whole cost of the system (Appendix 2). The 
problem is: to minimize f (x) = CX with a number of restrictions, which 
may be easily brought to the classical form of binary programming, permitting 
to solve with one of the routine algorithms /13/, i.e. to a computer. 
unavail- 
In this frame the first question is, the one referring to the 
if the 
different data gathering methods. Thus in a rational way a complete opera 
tional system should contain satellite platforms, airborne and terrestrial 
(for the geometrical and spectroradiometrical calibration of the' recordings 
iw what 
made from the other two steps). In the frame of each category of platforms 
there is the problem of choosing the optimum type from the technical-economi 
cal point of view. Thus, in the case of the airborne link there is the 
msidera- 
:ical 
problem of airplane type selection taking into consideration the flight 
parameters (altitude, velocity, useful capacity, total length of the record 
ing lines, etc.), the equipments storing capacity, etc. 
;ing a 
:ime a 
idix 1). 
J con- 
There is also the problem of the sensor-sensors type choosing, 
of the data recording equipments, their transmission, processing, inter 
pretation and data analysis. Regarding the data processing, the different 
possibilities presented by the automatic data processing must be considered 
and their opportunity function of the specific problem treated. Sometimes 
the automatic processing should be used only as a global preliminary 
preprocessing. The outputs of the photointerpretation process (automatic 
Lssical 
and/or human) may predict data regarding the models of development-setting 
up, of agriculture development, information required for planning and 
decision. 
it con- 
As for the costs which should be taken into consideration, some 
general characteristics must be taken into account. Only those costs which 
are relevant for the problem of economical selection would be considered: 
implies 
ise 
investment costs for platforms, sensors, data recording-transmission 
equipments, for the processing system, for that of information dissemination, 
or for any other parts of the remote sensing system linked to some specific 
applications. These investment costs must be correlated with the lifetime 
without 
ories, 
ions 
atment 
of the equipment. The repairing and maintenance costs should also be considered 
as well as cost of trained personnel. On the other hand the investigation 
costs required by the system-program adaptation should be introduced.