Figure /: Combination of TEM and SEM plots
with technique of Shading
Figute 5 : Plot from SEM micrographs
Carbon Black type N-550
SITUATION OF INDUSTRIAL PHOTOGRAMMETRY IN
HUNGARY
by
Dr. Maria Domokos
Department of Photogrammetry
TECHNICAL UNIVERSITY, BUDAPEST
Introduction
By way of introduction, let me point out that
my lecture will only outline the relevant
works in Hungary and recapitulate some expe-
riences of my own work,
I feel, earliest possibilities of applying
photogrammetry are all present among the sub-
Jects of what is actually called the job of
industrial geodesy. Industrial photogrammetry
may be old but it may be said to be new, as
well, Actually, however, no exact definition
‘of industrial photogrammetry can be given
since its developing instrumentation and
metrology are encroaching on ever larger
fields of geodesy. Mereover the possibilities
of not purely geometric data supply are in-
creasing, let us only consider the great va-
riety of physical characteristics delivered
by remote sensing. It seems that some prob-
lems of environmental engineering, such as
determination of erosion and deflation, of
the shape and temperature distribution of
smoke columns of thermal power stations, of
the pollution due to open-technology building
material factories are accessible to the
methods of terrestrial photogrammetry while
great industrial pollutions may be followed
up by certain methods of airborne photogram-
metry. To be well done, these tasks require
industrial photogrammetric methods.
In this country, several factories, research
institutes and university departments have
been concerned with industrial photogram-
metry on the levels of fundamental research,
development, technical development and on
factory level, Pertaining state specifica-
tions contain chapters on industrial photo-
grammetry and this applies with equal force
to surveying, structural engineering, road
and railway engineering, architectural etc,
curricula,
In spite of the wide range of its application
industrial photogrammetry haven't got es-
tablished on full scale in our country, Users
look at the end products and at the capacity
of industrial photogrammetry from the aspect
of geodetical services. Though, basic prob-
lems of information supply are known to differ
by type between industrial geodesy and in-
dustrial photogrammetry, This statement will
be illustrated on a simple example: the "pri-
mary event" in geodesy is measurement and in
photogrammetry it is taking shots. Even de-
nominations and demands are difficult to be
reconciled, The preface of Everit L.Merrit’s
Analytical Phtogrammetry contains some very
interesting ideas worth recalling,
«se». According to Merrit every branch of sci-
ence and philosophy has developed its own
terminology but this system of terms cannot
be understood but by the "obsessed", Much
as people have got known of the world,
listening to their learned friends, they
are compelled to realize that they cannot
even understand what is known to them and
what they are acquainted with, The gap be-
tween actual life and science is increas-
ing, Thus those who have lead and directed
could not understand those who have neen
thinking and those who wanted to know more,
were unable to understand those who really
knew all about the matter.
These thoughts seem to be valid also in our
line,
1. Classification of the applied methods
Industrial photogrammetry in Hungary may be
classified into three large groups of meth-
ods, The first group corresponds to terrain
surveys of low accuracy demand, the second
one is that of small survey in the local
system, and the third includes measurements
of special slight displacements,
In particular, methods are the following:
1,1 procedures replacing traversing, tachi-
metry and Ievelling of lower order are
aerial and terrestrial stereophotogram-
metry. Photos may be of normal, oblique
and general arrangement, Method of
processing may be: simple graphic, some
kind of optical methods (e.g. ortho-
photo), instrumental analogous, semi-
analytic or analytic. Observations may
be four-dimensional in the stereo—
time-basis method,
1,2 Photogrammetric methods replacing ortho—
gonal sighting on horizontal or vertical
planes are the single-image methods
of aerial and terrestrial photogrammetry.
Photos are to be taken with sighting
axes exactly or nearly vertical or normal
to the object or terrain, Processing is
done by graphic methods, optical proce-
dures, some types of photomapping, and
analytic methods, In case of time-de-
pendent recording, observation is made
by single-picture time-base recording,
1,3 Photogrammetry replacing observations of
displacements in space, in plane or in
time of deformations, processes and of
phenomena may involve any method of
aerial or terrestrial photogrammetry.
With such problems, however, primarily
the analytic methods are of interest,
but of no universal applicability (to be
discussed later).
2, Fields of application
In years of practice, some routine applica-
tions have developed in industrial photogram-
metry, such ast
2,1 Building topography: survey of outer and
inner façades, roof cadaster making,
surveying roof structures, surveying at-
tic and basement spaces, surveying cor-
ridors and inner rooms, building data
banks for monuments, for dwelling
houses and industrial premises (aerial
stereophotogrammetry is often used for
model making). The outlined works are
done by various university departments
and enterprises, for instance, about