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|
|Reorder groups||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||Right arrow|
|Go to the previous frame||Left arrow|
|Go to the last frame|
|Go to the first frame|
|Navigate through time range boxes and frame navigation buttons||Tab|
|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||Ctrl+Z|
|Redo labeling action||Ctrl+Y|
|Select all non-pixel ROIs||Ctrl+A|
|Select specific non-pixel ROIs||Hold Ctrl and click the ROIs you want to select|
|Cut selected non-pixel ROIs||Ctrl+X|
|Copy selected non-pixel ROIs to clipboard||Ctrl+C|
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||Delete|
|Copy all pixel ROIs||Ctrl+Shift+C|
|Cut all pixel ROIs||Ctrl+Shift+X|
|Paste copied or cut pixel ROIs||Ctrl+Shift+V|
|Delete all pixel ROIs||Ctrl+Shift+Delete|
Fill all or all remaining pixels
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||Backspace|
|Cancel drawing and delete the entire polyline||Escape|
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||Backspace|
|Cancel drawing and delete the entire polygon||Escape|
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||Ctrl+S|