Image Engineering
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i.e., the one above, below, and to the left and right. These four ROIs may also only contain one
point. Furthermore, the individual ROIs should not overlap too much. See Figure 8 below for
reference.
•
Analysis:
After detection, the actual analysis can be performed. Click on the "Analyze" button in
the "Detection & analysis" section (2) to start the calibration. The progress bar (5) indicates when
the calibration is finished.
Depending on the number of points detected, the time needed for calibration may vary slightly.
•
Calibration results:
the results will be listed under the "Result table" tab in the "Image" section
(4). Please find an explanation of the values in chapter 4.2 of this manual. The RMSE of the
calibration is also included in the result table. If needed, you can clear the result table by clicking
"clear table."
Under the tab "Distortion curve," you also get a graphical visualization of the determined
distortion of the camera (Geometric Distortion vs. Field).
Saving results
You have the option to either save your results to an XML or CSV-type file. If you have analyzed multiple
images, select one or multiple images of which you would like to save the results from the list in the
"Image data" section.
Then click File
→
Save result
→
Save XML or Save CSV
→
navigate to the desired location
→
click Save
If you selected multiple images, all results would be saved in one CSV or XML file.
Figure 8: Manual point detection
