Kraus K., Mikhail E.M. Linear least-squares interpolation

Photogrammetric Engineering. — 1972. — Volume XXXVIII. — №10 (October). — P. 1016 - 1029.Linear interpolation and filtering by least squares is a general and flexible method which may be used in many problems of computational photogrammetry. This is a concise, but complete, presentation including an interpretive photogrammetric demonstration, evaluation and analysis. Consideration is given to the effects of theoretical assumptions in practice, of the number of reference points and of the choice of trend surface and covariance function, with simulated test results. Some of the areas considered include: compensation for film and lens distortion, external horizontal and vertical block adjustment, problems in digital terrain model (DTM), and use of Side Looking Radar (SLAR) imagery. Further research is presently continuing on DTM, SLAR and other remote sensing records.