A PROGRAM CONCEPTION FOR INCLUDING GEODETIC OBSERVATIONS 
AND OBJECT INFORMATION IN PHOTOGRAMMETRIC BLOCK 
ADJUSTMENT WITH INDEPENDENT MODELS 
Dragan Mihajlovic 
Institute of Geodesy 
Faculty of Civil Engineering 
Belgrade, Yugoslavia 
ABSTRACT 
In the paper, there are given the principal solution the 
problem of including geodetic observations and geometric 
information about object in photogrammetric block adjust- 
ment with independent models. The solution is based on the 
conception that all additional (non-photogrammetric) 
information can be treated (individually or in the group) 
in the local coordinate system too. The individual charac- 
teristic of this information are included with proper 
choice of the weight of the fictive observations and the 
number of free parameters of the local coordinate system. 
1. INTRODUCTION 
With the classical application of blockaerotriangulation 
with independent models all geometric information about the 
object must solely be expressed in the form of control 
point coordinates. For this reason in the practical expe- 
rience it is often the case that many other geometric data 
and other information are unexploited, as they cannot be 
expressed in the coordinate system of the object. These are 
comprised of all kinds of geodetic observations (length, 
horizontal and vertical angles, azimuths, differemce of 
height, etc.) as well as all kinds of geometric information 
about the object (horizontal and vertical planes, straight 
lines, parallel and offset lines, etc.). In cases where 
there is not a satisfactory number and distribution of 
control points coordinates, thís information could be very 
helpful, under the condition that in the block adjustment 
they are to be treated equally with the photogrammetric 
observations. 
Practical requirement that instead of the present way of 
data gathering (which was based only on the coordinates and 
the height of control points) new possibilities be offered 
is understandable. In dealing with this requirement ic 
should be noted that the proposed solution must not affect 
the economic aspect, the efficiency and the precision of 
the existing method of aerotriangulation /3/. 
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