Knowledge Base

Review the Runs During Classification

You can review runs using the following:

• Video window: move through the video and inspect the assigned labels.
• Graphical Results: view labeled prints and the time-based gait diagram.
• Numerical Results: view a number of basic parameters for each print.

Video Window

Review a Run

1. Under Trial & Run Selection, select a (partially) classified trial and a (partially) classified run.
2. To replay a run, press the Play button:
   • You can select a playback speed from the list.
   • When you press the Pause button, the video pauses at its current position.
   • You can move the video forward or backward one frame using the Play-Forward-One-Frame or Play-Back-One-Frame button, respectively.
   • When you press the Stop button, the video jumps to the beginning.
   • When the run is paused or stopped, you can scroll through the video using the slider.
   • A run plays continuously unless you turn off the Repeat button.

When you right-click the Video window, a menu appears with the following options:

• Show Labels: when not selected, the labels are hidden.
• Show Rectangles: when not selected, the rectangles are hidden.
• Show Overlay Text: the overlay text at the top-left corner displays the run number, the time of the current video frame, the current frame number, and the total number of frames. When not selected, the overlay text is hidden.

Hiding labels, rectangles, and overlay text may be useful to get a better view of the prints.

Graphical Results

The Graphical Results contains two views.

Print View

The Print View displays the paw prints and other prints. During labeling, the Print View is constantly updated. The prints are displayed in the same direction as in the Video window.

During playback of the run, paw prints and their labels visible in the Video window are highlighted in yellow (or another color that you can select in the Preferences).

Print View Options

Right-click the Print View to access the following options:

• Switch to Normal Color Mode: displays the prints in green of variable intensity on a black background.
• Switch to False Color Mode: displays the prints with a color gradient indicating different print intensities (from green = low intensity, to red = high intensity) on a blue background. False Color mode is the default mode.
• Switch to Colorized Mode: displays the prints in the colors selected in the Color preferences on a black background.
• Show All Prints: when not selected, only the prints visible in the current frame in the Video window are shown in the Print View.
• Show Labels: when not selected, all labels are hidden.
• Show Rectangles: when not selected, all rectangles are hidden.
• Save to File: saves the Print View, as displayed on screen, to an image file (*.png).

Copy to Clipboard and Print View Tips

To copy the Print View, as displayed on the screen, to the clipboard, use the Copy to Clipboard option.

• You can hide the Print View by clicking the title bar.
• You can jump to the first frame of a specific print by clicking the print in the Print View (indicated by the mouse pointer becoming a hand when hovering over a print).
• If you do not see a color mode option, it means that the Print View is already in that mode.

Timing View

The Timing View displays the time-based gait diagram of a run. It also displays the contact with the glass plate of other body parts that you have labeled.

The Timing View displays the prints from left to right, irrespective of the animal's actual direction of movement.

The bars in the Timing View represent the duration of contact with the glass plate (stance or stand) of a paw or other body part. The intervals between bars represent the time a paw was not touching the glass plate (Swing).

The vertical, red dotted hairline corresponds to the position of the run in the Video window.

When you right-click the Timing View, a menu appears with the following options:

• Show All Prints – When not selected, only the four paw prints are shown.
• Save to File... – This saves the Timing View, as displayed on the screen, to an image file (*.png).
• Copy to Clipboard – This copies the Timing View, as displayed on the screen, to the clipboard.

• You can hide the Timing View by clicking the title bar.
• You can jump to the first video frame of a specific print by clicking the corresponding bar in the Timing View (indicated by the mouse pointer becoming a hand when hovering over a bar).