CONTENTS 
Preface 
F. Ackermann K.G. Lófstróm Memorial Lecture: i 
Camera Orientation Data for 
Aerial Triangulation. 
F. Ackermann, High Precision Aerial Triangu- 18 
W. Schneider lation with Point Transfer by 
Digital Image Correlation. 
A.E. Ali Optical and Digital Seasat SAR 28 
Processing Techniques: 
A Comparison of Acccuracy 
Results. 
A.E. Balce Determination of Optimum Sam- AQ 
pling Interval in Grid Sampling 
of Digital Elevation Models for 
Large-Scale Application. 
J. van den Berg The Influence of Ground Control 55 
on Photogrammetric Point Deter- 
mination. 
BR. Bill, F. Steidier Progressive Sampling Using 69 
Triangular Intermeshing - 
An Effecient Photogrammetric 
DTM Data Acquisition Method. 
F. Boochs, R. Decker Determination of a Digital 79 
Terrain Model from Spacelab 
Metric Camera Pictures by 
Means of Digital Image Correla- 
tion. 
T. Bouloucos Multidimensional Tests for 93 
Model Errors and Their Reli- 
ability Measures. 
T. Bouloucos, M.Molenaar Systematic Deformations of 112 
Photogrammetric Blocks Caused 
by Undetected Gross Errors in 
the Terrestrial Control Networks.