- The x axes of the two theodolite images, = The translation element along the Y direc-
which are parallel to the base line, are tion By has a zero value.
parallel.
The fifth element of the relative orientation
- The z axes of the two theodolite images, parameter, which is the difference of the
which are parallel to the theodolite ver- height between the two perspective centers of
tical axes at the two theodolite stations, the theodolite images Bz can be determined
are parallel. either directly by using linear measurements
or indirectly by using the coplanarity equ-
- The two theodolite images are on one ver- tion. The indirect method is not used for the
tical plane. following reasons:
Accordingly, the relative orientation para- - The perspective center, which is the point
meters which are required to orient the right of intersection the theodolite vertical
theodolite image with respect to the left one, and horizontal axes, is not well defined
are having these values. point.
* - The three rotation parameters around the - Even if it was defined the value of Bz
three images axes are having zero values. measured by linear measurements would not
give the required accuracy.
TABLE 1
THEODOLITE DIRECTIONS AND THEODOLITE IMAGE COORDINATES
FROM THE LEFT STATION
Theodolite Directions Theodolite Image
a B X y
101| 39 19 07 -00 42 07 7.2—-17 -1.2284
103 | 43 22 03 -00 41 51 14.3434 -1.2299
105 | 45 57 14 -00 40 10 18.9836 -1.1893
107 | 48 34 00 -00 41 49 23.7527 -1.2503
* 109] 52 19 20 -00 41 15 30.7969 -1.2558
1001 | 39 20 24 34 46 13 7.2295 69.6061
1003 | 43 20 02 34 33 16 14.2836 69.5671
1005 | 45 59 11 34 27 08 19.0421 69.5772
+ 1007 | 48 31 11 34 07 19 23.6661 69.6320
1009| 52 22 02 34 36 46 30.8829 69.5690
3001 | 39 22 04 64 37 06 7.2782 211.3310
3003] 43 21 49 64 26 58 14.3365 211.3179
3005] 45 59 32 | 64 15 wo 19.0529| 211.1556
3007 | 48 33 50 64 04 00 23.7475 211.3562
3009 | 52 21 05 64 37 45 30.8527 211.0883
a, 125 12
112