CONTENTS 



Page 



Introduction 



Theory 



Parallax error 



Special case 



General case 



Perspective error 



Description of device 



Photographic measuring device 



Base and framework 



Strobe light and power pack 



Camera assembly 



Automatic features 



Wiring 



Technique of use 



Taking the pictures 



Reading film 



Calculating longitudinal distances 



Calculation of OQ" 



Calculation of OQ" 



Calculation of Q'Q" 



Performance 



Portability 



Automatic features 



Efficiency 



Taking measurements 



Reading film and calculating longitudinal distances 



Accuracy 



Design of tests 



Tests results 



Sources of error 



Future work 



Portability 



Base 



General design improvements 



Automatic features 



Accuracy 



Other uses 



Evaluation 



Summary 



Acknowledgments 



Bibliography 



