The segmentation classes are listed at the top of the interface. To create a segmentation, select a segmentation class and then draw the segment on the image.You can create as many annotations as needed from any of the classes listed.
The classifications are listed below the segmentation classes. Simply select the answer that applies.
Hotkeys allow you to complete certain actions using keyboard shortcuts to increase labeling speed. Below is a list of available actions.
cmd/ctrl + z
cmd/ctrl + y
Change class of segmentation
shift + tab
Bring to front
cmd/ctrl + arrow up
Send to back
cmd/ctrl + arrow down
Fit zoom to segment or map
shift + s
In addition, numbers 1-9 are hotkeys for selecting your available classes.
If you have a lot of classes, use the Search hotkey to filter down your list of classes. The left of the filtered classes will show the reordered hotkey numbers to choose from. These two steps really help to quickly find and choose the right class and reduce labeling time.
This is useful when a segment was created and you would like to change the class of that segment without having to delete it and create a new one. This is very useful to reduce rework while labeling.
Select the segment, right click or press "c", then choose one of the available classes on the left.
The Hotkey for selecting segments are "w" for the next segment and "q" for the previous segment. This can really help decrease labeling time when working with several class annotations on a label.
Using "w" and "q" Hotkeys to quickly select segments
Re-Enqueueing Skipped Labels
You can put skipped labels back in the queue to be labeled by going to the Activitiy tab, selecting all of the skipped labels and press the Re-Enqueue button.