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.