10.0 
Öland Test Field 1966 
Type of film transformation 
AA acetate affine 
AH - » - Helmert 
PA polyester affine 
PH - ii - Helmert 
Fig. 3.11:1. Estimated standard errors of image coordinates in 
contact diapositives of film negatives on acetate and polyester 
base, expressed as functions of varying areas. The influences of 
empirically determined irregular distortions of films and of 
emulsions of diapositives only, are combined. Ref. 3: 2 and A. 
Moren. 
Fig. 3.11:4. Empirically determined standard errors of unit 
weight of image coordinates as functions of the radii from the 
image center. Partial calibrations of aerial photographs of the 
Oland test field, see Fig. 3.11: 3. The grid (circle) method with 
one scale factor only. Average of 11 tests. Ref. 3: 2 and A. Moren. 
Polyester base. 
micron 
15.0 
„AH 
Öland Test Field 1966 
Sg micron 
A 
10x10 20x20 area cm2 
Fig. 3.11: 2. Estimated total standard errors of image coordinates 
in contact diapositives of aerial photographs on acetate and 
polyester base, expressed as functions of varying areas. All 
possible sources of error (irregular film- and emulsion distor 
tion, irregular atmospheric refraction, irregular flatness defects 
of the image plane etc.) are included. Ref. 3: 2 and A. Moren. 
50 100 150r'mm 
Fig. 3.11:5. Empirically determined standard errors of unit 
weight of image coordinates as functions of the radii from the 
image center. The grid (circle) method with two scale factors 
and one factor for lack of orthogonality. Compare the Figs. 
3.11: 3 and 4. Averages of 11 tests. Polyester base. 
Öland Test Field 1965 
Sg micron 
10.0 
5.0 
50 100 150r'mm 
r Öland Test Field 1966 
1.0- 
Öland Test Field 1966 
Sg micron 
50 100 150r'mm 
Fig. 3.11:3. Empirically determined standard errors of unit 
weight of image coordinates as functions of the radii from the 
image center. Results from partial calibrations of aerial photo 
graphs of the Oland test field. Aviogon lenses c = 153 mm, 
flying altitude 1300 meters, polyester film base. The grid (circle) 
method with two scale parameters (x and y) was applied. The 
results shown are averages of 14 tests in 1965 and 11 tests in 1966. 
Ref. 3: 2 and A. Moren. 
-to 
0D5 0.03 0.03 0.03 0.02 0-02 0.03 
0.05 0.06 
Sr 
Fig. 3.11:6. Correlation coefficients r between the residual image 
coordinate errors as functions of the distances d between the 
points. The upper diagram refers to the experiments summarized 
in Fig. 3.11:4 and the lower diagram to Fig. 3.11: 5. s r is the 
standard error of the correlation coefficients.