refraction, the radial and decentering distortion, systematic film errors as shrinkage, affine distortion and
incorrect copy.
The method of block adjustment is applied to the test area ‘Oberschwaben’ of the OEEPE. The explored block
contains five strips (60% forward overlap and 30% side overlap) with 26 frames each. The scale is 1:28 000
and each picture contains nine pairs of adjacent junction points (targets).
5. Boniface, P.R.J.
South Africa
THE COMPUTATION OF LARGE BLOCKS WITH ANBLOCK
AND ITS APPLICATION TO GEODETIC SURVEYS
This paper describes an x, y and z simultaneous block adjustment based on the Amblock method of adjustment,
which has been recently introduced at Aircraft Operating Company. Details are given of an adjustment of a
2100 model block of an area in Mozambique. The potential of this method is discussed in relation to the
computation of blocks in the order of 5,000 overlaps and the re-adjustment of old bridging observations
6. Bosman, E.R.
Clerici, E.
Eckhart, D.
Kubik, K.
Netherlands
KARIN - A PROGRAMME SYSTEM FOR THE MAPPING
OF REMOTE SENSING INFORMATION
A programme system was jointly developed by NIWARS and Rijkswaterstaat, the Netherlands, for the
mapping of geographic detail from simple or overlapping remote sensing photographs (Sidelooking Radar,
Infrared, A.O.). The system consists, similar to the conventional systems for aerial triangulation, of
programmes for strip formation, strip and block adjustment and for the plotting of the information.
Examples of infrared and sidelooking radar projects are included to demonstrate the application of the
system.
7. Carlson, E.
Finland
BLSOR ITERATIVE METHOD FOR SOLVING LARGE
PHOTOGRAMMETRIC NORMAL EQUATIONS
Practical and efficient methods for solution of large normal equations is developed and tested for photogram-
metric block adjustments with principle of block successive overrelaxation (BLSOR ) iterative method.
The nature of the convergence is studied, and practical formulas for automatic optimization of the convergence
is given.
Computer techniques are briefly described. A block of 4800 unknowns can be computed with UNIVAC 1108
computer in 30 minutes of central processing unit time.
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