ES
EEE A dima
We determine the parame ers A and y by solving the upper equations
By their application we get. the space co-ordinates of the poi
1 : 7 2 oint T*
following equations: p T'by the
Y! «A (X* BA, +d AX, ) = (U (N-Ex PA, + OX, Jib, |
y A(y* Vy, vd V) e ( Y- by Pt dX eb
Z'À(Z «VIZ, dZ,) -(«(Z-bu v dE), |
.The.displacements of the point 7 in directions of co-ordinate axis, . we |
.look for, amount to:
gx xX - X, OyY-Y -Y, and |d2-Z7 -Z
The displacements:caused: from an.unresumed inner orientation will be di-
scussed. separately: from those ones: that originate .from an incorrect external o- |
rientation of photographs: :
dX= dX rd’ dYedyidy” di-dZradZ’ |
. Index. I refers. to the.component, originated from the errors of inner ori-
entation, the index 4 to the component originated from the errors of external |
orientation. |
The equations of displacements are formulated in such a way, that the
errors of elements orientation appear directly as arguments. We took into account
all. terms of the first and second order..Because: of a better clearness the equa-
tions. are. given in tables: (table I and II). There are included all. terms of the
first order and those: terms:of the- second. one. that-can take: considerable amounts.
The other: terms of. the second. order. that.take.smaller amounts aren:t mentioned
.on.this place.because of a great extent.
For expressions. that often appear in equations, :the symbols D, & and n
are.used.
D X, bx
= X- 6x = Z-bz
Z, bz ; 7
The terms in the rubrics have: to. be multiplied with the corresponding
error. of the orientational-element :along :the-rubric.
We are: going. to introduce in these. equations ..Z=const. and to take fixed
amounts for the errors of the elements of orientations and. to calculate the
rotation. displacements and deformations: for the horizontal model-plain. Further
we shall take the: conditions. for the camera with normal angles, where. is Z=3b,
and express: the displacements in the scale of the photograph. (Z=f=3b,).
Space displacements for 9 characteristic points of model plain are calc:
, DX , Ux bx :
lated: 7,(0,0), T,(0,0x), T«(0,-bx), TA" 20), Tel, bx), Tol, -bX),
Palux, 0), T5(0,,b,), and - fa(b,, -b,)
For illustration only the terms of the first order are graphically shown.
The influences of the incorrect inner orientation are shown on. the Fig.4a
...4f; while. the Fig:5a...5h show plain deformations cause of the unresumed inner |
orientation.
In both cases it's possible to come near to deformations with the hyper-
bolic paraboloid.