Omron F250-UME Software Manual page 550

ECM Search
CHECK
SeeAlso
2-23-(23)
2. Detailed Search
Measurements are taken again in area of highest correlation.
Model
œ
Model reduced by the amount set under Reduction.
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Model where number of pixels set under Model skipping have been skipped.
When Accuracy Set to Normal
The position found using detailed search will be the measurement value.
Reductions will be converted back to original size and output.
When Accuracy Set to Precise
The image and the model are returned to the original size and the detailed
search is executed again. The position is found in sub-pixel units. Model
skipping is not performed.
Refer to page 2-23-(7) for information on setting Accuracy.
Setting items Range
Candidate 0 to 100 (60*)
level
Reduction 25 to 100 (50*) Set the percentage to reduce the input and model
Model skipping 1 to 9 (2*)
Search skip- 1 to 9 (2*)
ping
The asterisk (*) indicates the default setting.
Measures again in area of highest correlation.
Image reduced by the amount set under
Reduction.
Set the threshold for the correlation when executing
rough searches. If the highest correlation is at or
below the candidate level, detailed searches will not
be executed. The judgement result will be NG.
Reduce the candidate level if the model searches
are unstable. The processing speed, however, will
be slower.
images when search is executed. The processing
time is shorter the more the image is reduced. How-
ever, the searches may become unstable when the
model is small.
Set the number of pixels to be skipped for the model.
Set the number of pixels to be skipped in the search
region when performing rough searches.
Section 2-23
Details