Operating Instructions Software; Installing Geocal Software; Configuration File (Xml) - Image Engineering GEOCAL User Manual

5 OPERATING INSTRUCTIONS SOFTWARE

The GEOCAL software lets you completely calibrate your camera system in a matter of seconds.
The results can be saved as CSV or XML files.

Installing GEOCAL software

•
Execute the GEOCAL installer (GEOCAL_Vx.x.x.exe, 64 bit) and follow the instructions.
•
The software is now ready for use.

Configuration File (XML)

A standard config file will be installed with the software. If your calibration does not require particular
settings, you do not need to load a config file manually or manipulate the existing one. At each program
start, the default configuration is executed. You can modify this file to load your settings at the program
start if you have your own default settings. You can find and manipulate the default settings here
"...\AppData\Roaming\Image Engineering\GEOCAL".
The config file parameters are listed below if you need to make adjustments.
•
Device Parameter: Wavelength
This parameter describes the wavelength of the built-in laser.
•
Device Parameter: GratingConstant
This parameter describes the grating constant of the built-in DOE.
•
Control Parameter: MinF
This parameter describes the stop strategy, at which optimization value the analysis is stopped
(0.0...10.0 – default: 1.0)
The smaller the value, the more accurate the analysis becomes, but the analysis time also
increases.
•
Control Parameter: MinDelta
This parameter describes another stop strategy. When the change of the optimization value
between two iterations is less than the delta, the analysis stops (0.0...10.0 - default: 1e-7).
The smaller the value, the more accurate the analysis becomes, but the analysis time also
increases.
•
Detection Parameter: Margin
This parameter is used to set a detection margin. It may happen that points at the edge of the
image cannot be adequately detected. With this parameter, you can ignore the edge.
•
Distortion Model: Model
With this parameter, the model can be selected. Currently, the following models are implemented:
- EVEN_BROWN_MODEL, CUSTOM_MODEL_1 (for more information about the models,
please review the API documentation).
•
Analysis Parameter: angles Alpha and Beta
These angles describe the orientation of the diffractive optical element to the incident expanded
and collimated beam of light. They are determined during the acceptance procedure at Image
Engineering and written in the config file. These values may not be changed unless the diffractive
optical element has to be replaced.
Image Engineering
Seite 10 von 19