Annotation

There are three types of instances in the Video Editor: Bounding Boxes, Points, and Events. Use Bounding Boxes and Points to annotate objects and Events to annotate conditions such as weather or noise.

Bounding Box

Create Bounding Box

To add a Bounding Box:

  1. In the left panel, select the Bounding Box tool or press X on the keyboard.
  2. Draw a Bounding Box.

When you add a Bounding Box, it will be added to the frame where you created it and multiple of the following frames.

To limit a Bounding Box to a specific timeframe:

  1. Select the Bounding Box.
  2. Hover over the first or last keyframe of any instance.
  3. Drag the keyframe to the left or the right to resize the instance.

Add instance section

A Bounding Box can have multiple sections. To add a section of a Bounding Box, click where you want to add it on the timeline and click the + button next to the instance in the right panel.

📘

A white icon appears on the timeline whenever you change the location of an instance. The icon is located at the point in time where you made the change.

Copy Bounding Box

To copy a Bounding Box:

  1. Select the instance.
  2. Press Ctrl+C on the keyboard to copy the instance.
  3. Press Ctrl+V on the keyboard to paste the instance.

Delete Bounding Box

To delete a Bounding Box:

  1. Select the instance.
  2. Press the Backspace or the Delete keys on the keyboard.

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To delete all the instances in a video:

  1. In the right panel, click the delete button.
  2. In the popup, choose Yes.

Point label

Add point label

To add a point label:

  1. Select a Bounding Box.
  2. Right-click on a point.
  3. Type a name.
  4. Click the checkmark.

📘

A white icon appears on the timeline whenever you add a point label to an instance. The icon is located at the point in time where you added the point label.

Delete point label

There are 2 ways to delete a point label:

Method 1:

  1. Select an instance.
  2. Right-click on a point.
  3. Click the delete button.

Method 2:

  1. Find the instance in the right panel and expand it.
  2. Click Point labels.
  3. Delete the point label(s) you want.

Point

Add Point

To add a Point:

  1. In the left panel, select the Point tool or press P on the keyboard.
  2. Click where you want to add the Point.

When you add a Point, it will be added to the frame where you created it and some of the few following frames.

To limit a Point to a specific timeframe:

  1. Select the Point.
  2. Hover over the first or last keyframe of any instance.
  3. Drag the keyframe to the left or the right to resize the instance.

To make an instance section shorter on the timeframe:

  1. Select the instance.
  2. Select the point in the timeframe where you want the instance section to end.
  3. Press the Backspace or Delete keys on your keyboard.

Add instance section

A Point can have multiple sections. To add a section of a Point, click where you want to add it on the timeline and click the + button next to the instance in the right panel or press I on the keyboard.

A white icon appears on the timeline whenever you change the location of an instance. The icon is located at the point in time where you made the change.

Copy Point

To copy a Point:

  1. Select the instance.
  2. Press Ctrl+C on the keyboard to copy the instance.
  3. Press Ctrl+V on the keyboard to paste the instance.

Delete Point

To delete a Point:

  1. Find the instance in the right panel.
  2. Click the corresponding Delete button.

To delete all the instances in a video:

  1. In the right panel, click the delete button.
  2. In the popup, choose Yes.

Event

Use Events when you want to detect a condition, not an object, such as weather. For example, you can’t use Bounding Boxes to classify snow, rain, or fog. That’s a case where you need to use Events.

You can also use Events when the location of your object isn’t necessary. For instance, if you need to indicate that there are people in a room, but you don’t want to track them, you can use Events instead of Bounding Boxes.

Create Event

To add an Event:

  1. In the left panel, select the Event tool or press E on the keyboard.
  2. Hover over the timeline and place the cursor where you want the Event to start.
  3. Click on the + button to add the event to the timeline.

To limit an Event to a specific timeframe:

  1. Select the Event on the timeline.
  2. Hover over the first or last keyframe.
  3. Drag the keyframe to the left or the right to resize the Event.

Add instance section

An Event can have multiple sections. To add a section of an Event, click where you want to add it on the timeline and click the + button next to the instance in the right panel.

View Events

To view all the Events:

  1. Hover over any Event on the timeline.
  2. Click All Events.

The list shows all the Events that appear at the mentioned time. In the image above, the Event that appears in the list is “Sunny weather” because it is the only Event that is present at 00:00:14.417.

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When you click All Events, you’ll be able to see all the Events on the timeline in addition to the Bounding Boxes.

Edit Event

To edit an Event:

  1. Right-click on the Event.
  2. Edit the class/attribute(s).

Delete Event

To delete an Event:

  1. In the right panel, find the Event.
  2. Click its corresponding delete button.

To delete the Events that have the same class:

  1. In the right panel, find the class whose Events you want to delete.
  2. Click the delete button next to the class.

To delete all the Events:

  1. At the top of the right panel, click the delete button.
  2. In the popup, choose Yes.

Stretch instance

To stretch a Bounding Box or Event on the timeline:

  1. Select an instance in the right panel or double-click on the instance in the timeline.
  2. Hover over the first or last keyframe of any instance.
  3. Drag the keyframe to the left or the right to resize the instance.

❗️

You can’t drag a keyframe over another keyframe.

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You can drag a keyframe inside an instance to change its timestamp.

Keyframes

Jump between the keyframes of an instance

To jump between the keyframes of an instance:

  1. Select an instance.
  2. Press Shift+Right arrow on the keyboard to go to the next keyframe and Shift+Left arrow to go to the previous keyframe.

❗️

The shortcut doesn’t work if the instance is hidden.

Delete keyframe

To delete a keyframe:

  1. Select a keyframe.
  2. Press the Delete or the Backspace keys on the keyboard.

❗️

  • You can’t delete the first and last keyframes of an instance.
  • A keyframe indicates a modification has been made to the instance. This modification can be adding an attribute or multiple attributes, changing the location of the instance, and changing the size of the instance. So when you delete a keyframe, the changes will be deleted, too.

Zoom in/out video timeline

To zoom in the timeline, place your cursor on the timeline and scroll up your mouse wheel or swipe up on your touchpad.

To zoom out the timeline, place your cursor on the timeline and scroll down your mouse wheel or swipe down on your touchpad.

Custom time length to jump forward and backward

To adjust the time length to jump forward or backward:

  1. In the top panel of the Video Editor, click the settings button.
  2. Type a number in the boxes corresponding to Jump forward and Jump backward. You can type decimals.
  3. Click outside the dropdown menu to apply the changes.

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