Calibration - Omron FQ2-S/CH Series User Manual

7-2 Calibration

FQ2-S1 FQ2-S2 FQ2-S3

Calibration

Calibration is used to convert Camera coordinates into actual coordinates.
You can set calibration to output the detected position in the actual coordinates.
You can convert pixels to actual dimensions and then output them.
30 mm
You can also compensate for offsets in the origin and coordinate system.
Origin of actual coordinates
• Calibration Conversion Methods
There are the following three conversion methods for calibration.
Point specification: You can enter the actual pixel coordinates of any position.
Reference: You can measure a registered model and then enter the actual coordinates of the model.
Parameter: You can enter the calibration values directly.
• Setting Calibration
Use the following procedure to set calibration.
1
Set the conversion method to use for calibration.
Select the calibration method (point specification, reference, or parameter) and enter the actual coordi-
nates or other values that are suitable for the selected method.
You can register up to 32 calibration patterns.
Calibration type
Specify point (point specifica-
tion)
Reference sampling (refer-
ence)
Parameter
FQ2-S/CH User's Manual
FQ2-S4
Example
540 pixels = 30 mm
Example
Origin of actual
coordinates
Origin of Camera coordinates
Description
Specify from three to nine points and enter their actual coordi-
nates.
Search for a registered model and enter the actual coordinates
of the position where the model is detected.
Enter the numeric values of the parameters directly to calculate
the calibration data.
Camera coordinates
0 X
Origin of
Y
Camera
Positive
coordinates
direction
for angles
Reference
p. 252
p. 254
p. 256
251
Calibration