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Performing
Test
Measurement/Starting
Operation
FZ4 User's Manual
Key Points for Adjustment
79
Key Points for Adjustment
This section describes key points for adjustment when aiming to improve measurement precision and
shorten measurement time.
Stabilizing Measurement
This section describes key points for adjustment when measurement is not stable. There are two
methods for improving measurement precision: Performing processing of images loaded from the
camera (filtering) or adjusting settings and parameters.
Adjusting Parameters of Each Processing Item
Adjustment to improve precision and stability varies depending on the processing item.
For details, see "Key Points for Adjustment" for each processing item in the Processing Item List
Manual.
Processing Images (Filtering)
There are cases in which high-precision measurement is impossible such as when using images loaded
from the camera that have noise, irregularities, or low contrast or when the background has patterns
during defect measurement. In this case, measurement accuracy can be improved by performing
processing of measurement images in advance.
Reference:
"Processing Item List Manual", "Filtering" (p.402)
When measurement images have irregularities (search and location positioning are not stable)
The filtering items "Smoothing (strong and weak)" and "Median" are both effective.
●
Smoothing (strong and weak)
This processing changes the shade of images so that irregularities are not as easily seen.
●
Median
In comparison with smoothing, "Median" allows for irregularities to be hidden without having to
shade the edges of images.
When measurement images contain noise
The filtering items "Dilate" and "Erosion" are both effective.
●
Dilate
When there is dark noise in an image, bright areas are enlarged to eliminate dark noise.
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Содержание FZ4 Series
Страница 1: ...User s Manual Cat No Z318 E1 02B Vision Sensor FZ4 Series...
Страница 12: ...1 Before Operation 10 Operation Flow FZ4 User s Manual Operation Flow Here describes the operation flow...
Страница 38: ...1 Before Operation 36 Setting Operation Mode FZ4 User s Manual 1 CPU 2 CPUs FZ4 11 H11 only...
Страница 112: ...3 Performing Test Measurement Starting Operation 110 Useful Functions for Operation FZ4 User s Manual...
Страница 326: ...4 Using Tool 324 Remotely Operating the Controller Remote Operation FZ4 User s Manual Enter the IP address...
Страница 330: ...4 Using Tool 328 Remotely Operating the Controller Remote Operation FZ4 User s Manual...
Страница 351: ...6 Changing the System Environment FZ4 User s Manual Setting the System Operation Environment 349 Communication...
Страница 566: ......
Страница 648: ...8 Appendixes 646 Manual Revision History FZ4 User s Manual...
Страница 654: ...652 FZ4 User s Manual...
Страница 655: ......