Aurora Visio Studio TOP » Program Examples » Plate Measurement

Plate Measurement

目的

The aim of the program is to measure the the length of a metal plate.

Input

An image of a metal plate.

Output

Calculated distance between horizontal edges.

ヒント

The solution of this problem is immediate if a proper filter for measuring object width is used.

接続のラベル付けについては こちらを参照ください。

Solution (AVS)

  1. In Workspace Explorer open workspace Examples and in Film strip window select Plate dataset. Drag the Image channel to the ACQUIRE section.

  2. Add the MeasureObjectWidth filter.

  3. Connect outImage with the inImage.

  4. Click on the MeasureObjectWidth filter and make the following changes in Properties window (in the bottom left corner):

    • Click the "..." button at the inScanField input to open the GUI for specifying scanning field.
    • Set the scanning field as it is shown in the below image. Please remember that ScanField defines a rectangular field in which a series of scans will be performed.
    • Set the inScanCount to 20 to increase the number of scanning segments that are used to detect the horizontal edges of the plate.
    • Set the inStripeScanParams.StripePolarity to Bright as the plate is brighter than the background.
    • Set the inStripeScanParams.MinStripeWidth to 500 to reject noise which is narrower than the object.

マクロフィルタ メイン

使用したフィルタ

アイコン 名前 説明
MeasureObjectWidth ストライプ検出を使用してオブジェクトの幅を測定します。

その他の資料

  • 1D Edge Detection - エッジ検出フィルターがどのように機能するかを説明しています。