Optical correction of earth-curvature and refraction effects in aerial photographs by means of spherically ground compensation plates
Abstract
The use of spherical compensation plates in conjunction with formulas derived here permits almost complete correction of earth-curvature and refraction effects for direct-viewing instruments and provides a good approximation to correctness for perspective-viewing instruments. The manufacture of spherical surfaces is simpler and cheaper than the manufacture of aspherical surfaces, but every camera and every height would require a specific compensation plate. Use of spherical compensation plates is recommended for simple plotting instruments used to compile small-scale maps.
- Publication:
-
Bildmessung und Luftbildwessen
- Pub Date:
- March 1978
- Bibcode:
- 1978BiLuf..46...39K
- Keywords:
-
- Aerial Photography;
- Atmospheric Refraction;
- Earth Surface;
- Instrument Compensation;
- Optical Correction Procedure;
- Curvature;
- Distortion;
- Photogrammetry;
- Taylor Series;
- Instrumentation and Photography