Warning

You are reading the documentation for an older Pickit release (3.1). Documentation for the latest release (3.4) can be found here.

Build ROI box

There are three methods in Pickit for defining the ROI box:

When a ROI box is built, it sets the location of the ROI frame. The axes of this frame are aligned with the box, and box bounds are reported with respect to this frame, as mentioned in Fine-tune ROI box.

Around QR markers

This is the most common way of defining the ROI box. The ROI box is defined based on three markers laid out in the field of view of the camera. The “Pickit” text of all markers should be oriented in the same direction and the arrows of the same color should be pointing towards each other. The markers are not interchangeable.

../../_images/roi_markers.jpg

  1. Open the 2D view view in the Pickit viewer.

  2. Place the three markers as shown in the image above in the field of view of the camera.

  3. Press Around QR markers (this button is on clickable when all three markers are in the field of view of the camera).

  4. If required, manually adjust the ROI box size as described in the Fine-tune ROI box section.

Note

When using this method, the ROI frame origin is at the left bottom corner of the ROI box.

Tip

When the Region of Interest corresponds to the contents of a bin, you have two choices:

  • If the bin is shallow and empty, you can place the markers on three corners at the bottom of the bin.

  • If the bin is deep or not empty, it’s more convenient to place the markers on three corners at the top of the bin.

../../_images/roi_markers_bin.jpg

Automatically

With this strategy, the ROI box is located on top of the most dominant plane in the field of view of the camera.

  1. Press Automatically.

  2. Input length and width of the desired ROI box.

  3. If required, manually adjust the ROI box size as described in the Fine-tune ROI box section.

Note

When using this method, the ROI frame origin is at the middle of the ROI box bottom.

From camera

In this way the ROI box is defined based of the camera frame.

  1. Press From camera.

  2. Input length and width of the desired ROI box.

  3. If required, manually adjust the ROI box size as described in the Fine-tune ROI box section.

Note

When using this method, the ROI frame origin coincides with the camera frame.