Measurement Parameters (ECM Search)

This item specifies the judgement condition for measurement results.Specify the criteria to judge the measurement result if the X and Y coordinates and the correlation with the model are OK.

In the Item Tab area, tap [Measurement].

In the "Measurement condition" area, specify a value for each item.

Measurement - "Measurement condition" area

Setting item	Set value [factory default]	Description
Candidate point level	0 to 99 [40]	Specify the threshold value with which to detect candidate points in a rough search.Specify a smaller value for candidate point level when model search results are unstable.
Reduction	10 to 100 [50]	Specify the percentage to which the input image and the model image are reduced during a search.The more the image is reduced, the faster the processing becomes, but search results may be unreliable with a smaller image.
Model skipping	1 to 19 [4]	Specify how many pixels should be skipped when performing a rough search.
Search skipping	1 to 9 [2]	Specify how many pixels are skipped when performing a search for the "Search region".

Important

If you want to change measurement parameters after registering a model, it is necessary to re-register the model.

When the setting has been changed, tap [Measurement] in the Detail area to verify whether measurements can be made correctly.

Set up the judgement condition.

Measurement - "Judgement condition" area

Note

The values beside each item are measurement results of the displayed image.Take these values into consideration to determine the upper and lower limits.

Setting item	Set value	Description
Measure pos X	-99999.9999 to 99999.9999	Specify the range of X-axis shifting that is judged to be OK.
Measure pos Y	-99999.9999 to 99999.9999	Specify the range of Y-axis shifting that is judged to be OK.
Measure angle	-180 to 180	Specify the range of angles that are judged to be OK.
Correlation [Note 1]	0 to 100	Specify the range of correlation values that are judged to be OK.

[Note 1]: When the ECM correlation value of the measurement result is 0, the judgement result will be NG regardless of the measurement parameters setting.