Key Points For Adjustment; Stabilizing Measurement - Omron FZ3 User Manual

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.294)
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.
FZ3 User's Manual Key Points for Adjustment
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