Important successes were achieved particularly by linking the photogrammetric method as
a means for acquiring information with the immediate date processing in automatic compu
ters. When terrestrial photographs are plotted the acquired information is punch-holed into
the tape on a teleprinter according to the dictation of the stereoautograph operator. Profile sur
faces and deposit yardages (after coyot-hole blasts in stone quarries, for example, or for tri-
mestrial controls of the overburden in opencast mines, or to determine raw-material stocks in
industrial establishments) are computed on the Zuse Z 23 computer.
Aerial photogrammetry helped to obtain very good results in the completely mechanized
projection of communications. Traks are chosen on the basis of topographical and contour
plans on the scale of 1 : 1,000. Transversal profiles determined by a 1st order universal instru
ment equipped with profiloscope and recording device are the basic documents for yardage
computation of the soil works by the Zuse Z 23 computer.
IV. Education of workers and terminology
In Czechoslovakia engineers and technical workers of the photogrammetric branch receive
their education at the Technical University and secondary technical schools.
Students of photogrammetry study geodesy at Technical Colleges. The first 8 half terms
of general study are for all students of surveying and geodesy, as well as photogrammetry and
cartography. All students of the 7th and 8th half term have to pass 180 hours of photogram
metry. The 9th half term of photogrammetric specialization is aimed at providing students
with thorough theoretic and practical knowledge and during the final (10th) half term stu
dents work out their diploma projects.
Out of about 130 survey students who finish their studies every year almost one fifth
are specialists in photogrammetry. They have a good knowledge of surveying, particularly
in photogrammetry. Having passed one year of practical work they are well acquainted with
all photogrammetric instruments and are entnisted with projection work, they are put in char
ge of mapping and perform the most complicated justifying operations and rectifications of the
plotting instruments. In photogrammetrical establishments there generally is 1 engineer who
is in charge of 4 or 5 technical workers.
Owing to the fact that the photogrammetric specialization exists only for several years
there is still a considerable shortage of these specialists. The rapid development of new pho
togrammetric techniques and technology calls for the organisation of further postgraduai stu
dies in the use of computers in photogrammetry, in the methods of laboratory interpretation of
aerial photographs, in applying acquired in electronics to photogrammetry etc. One of the
means to achieve this will be the planned training centre where special photogrammetry
courses will be part of the curricula.
Study at secondary technical surveying schools lasts 4 years. In the final two classes
160 hours are devoted to photogrammetry. The students are acquainted with the fundamental
knowledge of photogrammetry and their practical training acquaints them with technological
proceedings of the photogrammetric methods. Laboratory equipment includes a universal plot
ting instrument, a rectifier, a phototheodolite and a steroautograph for terrestrial photogram
metry.
Some 250 students pass secondary technical surveying schools every year and nearly one
third of them finds employment in photogrammetric surveying. Owing to the fact that the
photogrammetric methods require a profound knowledge, practical postgraduai courses are
organised particularly for the staff employed in plotting. As a rule students who have passed
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