2D/3D boxes in sequence

If you are working with prelabels Copilot is the preferred option.

With any of the 3D box tools active, click on a prelabel to create a box, or select the prelabel and then a class. This is the fastest option if the prelabel is of good quality.

In a sequence, it is important to draw the object in the "best frame" to avoid size edits. Use show best frame to navigate there quickly, and Action assist: 3D boxes to accept the suggestion with shift+space.

If you have no prelabels available or an object was missed, use the regular drawing tools to create the object.

When annotating stationary and static objects, Point cloud aggregation is the most important feature. This will display points from multiple frames, providing a comprehensive view of the object, enabling you to set the size accurately and avoid unnecessary edits.

For tasks using the Stationary Guided WorkflowStationary Guided Workflow, aggregation happens automatically. Be sure to annotate stationary and static objects extensively within this workflow whenever possible, as you will benefit from step-by-step guidance and customized views that make annotating stationary objects more efficient.

For dynamic objects, you will have to make large adjustments to update the location of the object. The tools are ordered from most to least preferred when making large adjustments.

The Auto-adjust objects feature resolves about 95% of all minor adjustments and is available for vehicle-type objects. To determine if the feature is available for a class, check if the class is drawn by default with machine assistance.

Second best for minor adjustments is to use the Transformation controls. Using the snapping featuresnapping feature of the transformation control sets productive users apart from others. It is a must to learn when to use it.

For stationary objects in ideal cases you should only have to draw the object once and not make any further adjustments outside of the aggregated view. However, sometimes the client data has poor quality making the aggregated view 'blurry'. Instead of painstakingly correcting for drift on each and every object you only need to do it once for nearby objects - if you use Relative keyframe in 3D.

If you are working in a sequence with decent projections, then Create connected 2D box is recommended. All frames where the 3D box is visible in the different camera images will get a box that can be refined further.

If you are working with Action assist: 2D / 3D fusion, the first action is Create connected 2D box because it is the most productive workflow in 2D. After you have finished 3D, go to the 2D view and press shift+space.

If you are working with prelabels, then Copilot is available to you. Activate the drawing tool and click on the prelabel to create an identical object. You can also shift+click without a drawing tool active.

If prelabels are available in the task or for the object, then you can either use the regular four-point drawing tool for 2D bounding boxes or if the object is clearly visible and not occluded in any way you can use 2D machine-assisted tools.