PanoMachine Panorama Calculator Operators Manual
Copyright by Josef Ehrler
10
2.2.1
Parameter Inputs
2.2.1.1
Camera Model
On the top of the input field the actual camera model
4
is displayed. While pressing
the “Select”
button
5
the camera database opens to display up to 100 camera models
with their parameters. More about this issue can be found in chapter 2.4.
2.2.1.2
Min. Overlap between Columns (H)
The "Min. overlap between columns (H)" is given in the input mask
6
. The default
value is 25% and can be changed with the arrows
7
attached to the mask. With the
defined "Min. Overlap between Columns (H)"
6
and a given "
ANGLE (H)
"
13
, the cal-
culated horizontal overlap in the output field "Calculated Parameter"
26
will be equal or
a bit larger as defined in
6
. This happens when rounding the “
NPos (H)
”
17
for a given
ANGLE (H)
13
.
2.2.1.3
Overlap between Rows (V)
The overlap between rows is given in this input mask
8
. The default value is 30% and
can be changed with the arrows
9
attached to the mask. The calculated overlap be-
tween rows in the output field "Calculated Parameter"
26
is always exactly as defined
8
.
2.2.1.4
Focal length [mm]
The value for focal length
10
complies with the value engraved on the lens body used.
When using zoom lenses without engraved values between minimum and maximum
focal length, it is a good idea to use either the min or max value. Misrepresentation of
the input values may result in difficulties while stitching the panorama. An incorrect en-
tered focal length
10
will calculate incorrect AoV of a single image, step size between
images and overlap between images in
26
.
Changing the focal length
10
is done by overwriting the given or default value. The
decimal separator is accepted as a comma (
,
) and point (
.
) as well. Also values like
88, without decimal separator and fraction, are accepted.
2.2.1.5
Vertical Shift [°]
When the natural horizon is not in the centre of the panorama, the “Vertical Shift”
11
allows defining an offset to the natural horizon. When this is the case, the Panorama
Calculator will calculate the elevation values in consideration of the selected “Vertical
Shift”.
When photographing a panorama on the top of a mountain, the horizon for the pano-
rama is very close to the skyline. With “Vertical Shift”
11
set to 0° the calculator will
calculate the elevation values symmetrically to horizontal levelled panorama head (0°).
In this case the upper part of the panorama just sky and the lower part is maybe
cropped out – maybe we don’t want.
2.2.1.6
Pano Angle of View (H) ANGLE
The desired or necessary horizontal angle of view of the panorama “
ANGLE (H)
”
13
should be set by using the attached arrows
14
or by marking the value and using the
keyboard arrow keys. The entered value complies with the desired Angle of View of
the panorama in 45° steps.
