Omron FH-3 Series Reference Manual page 750

6
Select whether or not to output
distortion compensation parameters in
the Distortion type area.
Setting item
Trapezoidal
distortion
Lens distortion
Note
• Distortion compensation function is not applied for X, Y, Xθ, Yθ, θX and θY Stages. Therefore measurement
accuracy may be decreased if surface workpiece is on and the optic axis are at an incline to each other. Set the
camera optic axis perpendicular to the workpiece surface, including move axis.
Important
Limit on the number of calibration data when distortion compensation is turned on
For the FZ5-L3/6 series models, the number of distortion compensation calibration data (when
compensation for either trapezoidal distortion or lens distortion has been specified) that can be used in the same
scene group is limited according to the camera in use. Do not exceed this limitation. You can delete created
distortion compensation data by redoing calibration with both settings unselected. In the case of the FH series/FZ5-
800 series/FZ5-1100 series/FZ5-1200 series, the number of processing items is not limited and can be registered as
long as there is sufficient free memory.
If the amount of used memory increases and the amount of free memory becomes insufficient, it may cause errors in
operation mode switching or in adding Processing Units into the measurement flow. Please check the memory
consumption when you create scenes.
Type of
controller
FZ5-L35
Or
FZ5-6
Distortion compensation function
Because compensation is performed using the same algorithm with the high-precision calibration
processing item in this processing item, sampling points are biased toward the center of the screen when
the effective range of the field of view is extremely narrow and image compensation cannot be performed
normally.
Widen the effective range of the field of view so that sampling points are located in the entire screen and
perform calibration again.
748
Vision Master Calibration
Setting value
[Factory default]
• [Checked] Select whether or not to output trapezoidal compensation parameters set
• Unchecked for each data.
• [Checked] Select whether or not to output lens distortion compensation parameters
• Unchecked set for each data.
Intelligent
0.3 megapixel
Compact
camera
Digital Camera
30 28
If the effective range of the field of view is extremely narrow, a
circular virtual image shown left may appear.
Description
2 megapixel 5 megapixel
camera camera
7 2
FH/FZ5 Processing Item Function Reference Manual
0.3 megapixel 2 megapixel
camera (FH) camera (FH)
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4 megapixel
camera (FH)
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