The results from the estimates of the internal relia-
bility indicates that Bundle adjustment in general has
a better internal reliability than DLT but the difference
decreases with the number of control points.
7. ACKNOWLEDGEMENTS
The ideas for this investigation originates from
Professor Kennert Torlegärd, Department of Photo-
grammetry, Royal Institute of Technology, Stockholm,
to whom I would like to express my gratitude for
many fruitful discussions and for his guidance. I
would also like to thank my college Holger Zielinski
for his useful cooperation and support.
REFERENCES
MCGLONE, J., AND MIKHAIL E. M., AND PADERES, F. C.
1989. Analytic Data-Reduction Schemes in Non-
Topographic Photogrammetry. In Non-Topographic
Photogrammetry. 2nd edition. Karara, H. M., Ed.
American Society for Photogrammetry and Remote
Sensing. Ch 4, pp 37-57.
MIKHAIL, E. M. 1976. Observations and Least Squares.
IEP-A Dun-Donnelley Publisher. New York.
42
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