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.
  1. In the "Item tab" area, tap [Measurement].
  2. 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.
  3. When the setting has been changed, tap [Measure] in the "Detail" area to verify whether measurements can be made correctly.
    Measurement - "Detail" area
  4. 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 X
    -99999.9999 to 99999.9999
    Specify the range of X-axis shifting that is judged to be OK.
    Measure 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 value [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.