Action assist: 3D boxes

when efficiently annotating 3d boxes in a sequence, the goal is to fully annotate the object using the fewest keyframes possible the action assist tool guides you through the sequence, enabling you to place keyframes effectively for complete object annotation it can provide guidance with and without prelabels, though using prelabels will speed up the annotation process with prelabels the first step is to select a prelabel doing so will calculate the best frame to annotate the object in press shift+space to go there quickly and select a class to create the object adjusting the size will slow you down, so annotating the object in the best frame provides you with the best size estimate this will avoid unnecessary size adjustments after the object has been created, action assist will provide easy access to helpful features to annotate the object across the sequence following the path of action assist will speed you up more, as the result for the next recommended frame is precomputed instantly applying the result without having to wait for ai predictions the step length to the next keyframe is calculated based on how the prelabel has moved you need to place a keyframe when the motion of the object is no longer linear with respect to some threshold this is the frame that action assist will guide you to if the object is clearly visible across the entire sequence, an auto keyframe will appear the auto keyframe will execute all recommendations for the object in parallel, annotating the object in seconds without prelabels without prelabels you must annotate the object manually first the second step is to place a keyframe in the next or previous frame using quick move docid\ tqyvley1f46xww8adbuss to move the object to the new location when two frames have been annotated we can start tracking the object in low frequency tasks you will be zoomed in to the next location but must move the object manually with quick move docid\ tqyvley1f46xww8adbuss as recommendation in high frequency tasks we're able to more robustly track the object, so the predictions from tracking assist in 3d docid\ pzauyd2lqmcdglu6 gxde will be used this creates a workflow very similar to with prelabels highlight extrapolation when action assist fails to calculate a new action, you are considered done the highlight extrapolation option is recommended as a sanity check this will show you the points found in frames marked as not visible along the trajectory for past and future frames if there is a blob of points, you have likely set the life span of the object incorrectly related content 3d boxes docid\ jw2jfj5i04upvcc7hv3ek action assist 2d / 3d fusion docid\ take58ec1rmpcbldkzrn4