Use the Labeling panel

You can fix labeling issues using the tools in the Labeling panel. The following steps introduce the main components of the labeling panel. To go straight to examples of how to use it to fix labeling issues, see Fix common labeling issues.

To use the Labeling panel:

1. On the Processing tab on ribbon, select Labeling.

2. In the toolbar at the top of the Shogun Post window, ensure that the required subject is selected in the Current Subject list.

   Tip: By default, the selection in the Current Subject list at the top (middle) of the Shogun Post window determines which subject to label.

   If All is selected in the Current Subject list, the labeler uses the last subject it was set to.

   If you want to select a subject different from that specified in the Current Subject list, in the Labeling panel, clear the Use Current Subject box and select the required subject from the Subject list at the left of the check box.

   On the left of the Labeling panel, a list of labels for the selected subject is displayed. The color variations indicate marker issues:

   • Yellow: Mislabels or missing labels (the depth of the color indicates the severity of the issue, eg, more or fewer gaps)

   • Red: Labels for this marker are missing from the current frame

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3. To display a 3D representation of your labels for the current subject, click the 3D button at the top of the Labeling panel. The 3D view helps you to quickly identify where the markers should be. You can drag and drop labels from the 3D Labeling view to the 3D Scene view pane (and vice versa).

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   You can use the usual mouse actions (click and drag, right-click and drag, left- and right-click and drag) in the 3D view, in the same way as in a 3D Scene view.

4. At the top of the Labeling panel, in the Manual Labeling Options section, select the Mode option (Select or Label), which affects the way in which you select and label markers.

   • Select: Select a marker on your subject in a 3D Scene view and then select a label name in the list in the Labeling panel.

   • Label: Select the name of the label in the marker list and then select the required marker on the subject in the 3D Scene view.

   Tip: To quickly switch between labeling and select modes when labeling a subject, you can use the default hot key (L) that duplicates the functionality of the Label and Select buttons at the top of the Labeling panel.

5. In the Direction line, choose to label forward (through time) or backward .

   You can also select both options (ie, label both forward and backward), but to help you avoid confusion, at least initially, choose either backward or forward and use only that option.

6. From the Type options, select the way in which labeling will be applied:

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   • Whole: Labels entire trajectory.

   • Fragment: Labels the trajectory that intercepts the current frame.

   • Cliff: Labels the current frame and continues until a specified value is encountered, which stops the labeling (see the text below in the Labeling panel, for example, the default is to skip gaps smaller than 5 frames and stop labeling at cliffs that are larger than 50 mm).

   • Ranges: Lets you select an area on your graph or timeline and label only the selected time range.

In the Manual Labeling Tools section in the middle of the Labeling panel, you can correct swaps, unlabel information, and unlabel markers.

In the Semi-Automated Labelers section, you can access the Velocity Labeler, which is normally used after automated labeling, on a partially labeled take. You can use it to correct labeling where the path of a single marker consists of multiple trajectories that are consecutive in time with a small gap in between where the marker is unlabeled over part of its trajectory. The Velocity Label option is useful when a marker has been labeled for a range of time, and then becomes unlabeled, yet going forward or backward in time there are multiple trajectories that do not have a large gap between them and are all the same marker. It is best suited for cases when unlabeled trajectories are not many frames away from the labeled marker and the velocity of the marker around the end of the labeled marker and the start of the unlabeled trajectory is fairly constant.