Keyboard Shortcuts and Mouse Actions for Video Labeler
On Macintosh platforms, use the Command (⌘) key instead of Ctrl.
|Navigate through ROI labels and their groups in the ROI Label Definition pane.
|Up or Down arrow
|Navigate through scene labels and their groups in the Scene Label Definition pane,
|Hold Alt and press the up arrow or down arrow
|Reorder labels within a group or move labels between groups
|Click and drag labels
|Click and drag groups
Frame Navigation and Time Interval Settings
Navigate between frames and change the time range of the signal. These controls are located in the bottom pane of the app.
|Go to the next frame
|Go to the previous frame
|Go to the last frame
|Go to the first frame
|Navigate through time range boxes and frame navigation buttons
|Commit time interval settings
|Press Enter within the active time interval box (Start Time, Current, or End Time)
Perform labeling actions, such as adding, moving, and deleting regions of interest (ROIs). The ROIs can be pixel labels or non-pixel ROI labels that include line, rectangle, cuboid, and projected cuboid.
|Undo labeling action
|Redo labeling action
|Select all non-pixel ROIs
|Select specific non-pixel ROIs
|Hold Ctrl and click the ROIs you want to select
|Cut selected non-pixel ROIs
|Copy selected non-pixel ROIs to clipboard
Paste copied non-pixel ROIs
For more details, see Use Sublabels and Attributes to Label Ground Truth Data.
Switch between selected non-pixel ROI labels.
You can switch between labels only of the same type. For example, if you select a rectangle ROI, you can switch only between other rectangle ROIs.
|Tab or Shift+Tab
|Move a drawn non-pixel ROI label
|Hold Ctrl and press the up, down, left or right arrows
Resize a rectangle ROI uniformly across all dimensions
|Ctrl+Plus (+) or Ctrl+Minus (-)
|Delete selected non-pixel ROIs
|Copy all pixel ROIs
|Cut all pixel ROIs
|Paste copied or cut pixel ROIs
|Delete all pixel ROIs
Fill all or all remaining pixels
|Create an ROI around the entire frame
|Double-click on canvas with label definition selected
Draw ROI line labels on a frame. ROI line labels are polylines, meaning that they are composed of one or more line segments.
|Commit a polyline to the frame, excluding the currently active line segment
|Press Enter or right-click while drawing the polyline
|Commit a polyline to the frame, including the currently active line segment
Double-click while drawing the polyline
A new line segment is committed at the point where you double-click.
|Delete the previously created line segment in a polyline
|Cancel drawing and delete the entire polyline
Draw polygons to label pixels on a frame.
|Commit a polygon to the frame, excluding the currently active line segment
Press Enter or right-click while drawing the polygon
The polygon closes up by forming a line between the previously committed point and the first point in the polygon.
|Commit a polygon to the frame, including the currently active line segment
Double-click while drawing polygon
The polygon closes up by forming a line between the point where you double-clicked and the first point in the polygon.
|Remove the previously created line segment from a polygon
|Cancel drawing and delete the entire polygon
Zooming and Panning
|Zoom in or out of frame
Move the scroll wheel up (zoom in) or down (zoom out)
If the frame is in pan mode, then zooming is not supported. To enable zooming, in the upper-right corner of the frame, either click the Pan button to disable panning or click one of the zoom buttons.
|Zoom in on specific section of frame
|In the upper-right corner of the frame, click the Zoom In button . Then, draw a box around the section of the frame that you want to zoom in on.
|Pan across frame
|Press the up, down, left, or right arrows
|Save current session