![]() You can also click and drag the polyline to change its position. To reposition the polyline, simply click + drag each vertex to reposition it on the frame. You can use the toggle Annotations menu (or the hotkey T) to adjust the length of the object instance. By default, the shape will be created in the current frame and all frames following. To create a polyline, use your cursor to place each vertex of the line and click the last point again (or press F to end the shape. Once all instances have been created, press E to submit your label. To create another instance of the bounding box, press the number hotkey again to activate the tool, then create another bounding box. Use the specified number hotkey (e.g., 1, 2, 3) in the Tools panel to activate the bounding box tool. Shortcut: In the Tools panel, you will see a numerical hotkey next to the name of the annotation. For a refresher on interpolation, see here. Whenever an object is created or edited on a video frame, a keyframe is created, and all frames between keyframes will interpolate. You can also resize the bounding box by clicking on the corners and dragging them to their new position. ![]() To reposition the bounding box, simply click + hold then use your mouse or trackpad to reposition the annotation on the frame. To create a bounding box, use your cursor to place the top left and bottom right corners of the shape. To use the Video editor to label audio only, please reach out to Support for details. You can use the Video editor to classify videos with both audio and visual content or audio content alone. Labelers can adjust the volume level and click the volume button to mute/unmute audio playback. When a video has audio, your labeling team will be able to hear the audio during video playback (but not when hovering or stepping through with arrow keys). Sometimes, to make a certain classification in a video, you need to be able to hear and see the content in the frame sequence. Note: interpolation is not applied to classifications. This is because Labelbox uses interpolation to incrementally adjust the size and position of an annotation on frames in between keyframes. The frames between two keyframes are called interpolated (tweened) frames. A keyframe is indicated on an annotation track as a small circle. ![]() ![]() You can hover over the timeline to preview any frame in the video.Ī keyframe is a frame in the sequence where an annotation starts, ends, or is modified in some way. Indicates the frames on which the annotation was created. Here you can apply select answer(s) on a classification question and toggle the classification on/off.ĭisplays a temporal visualization of all created annotations on the video clip. You can hover over the progress bar to quickly preview any frame in the video.Īppears only for frame classification-type annotations (e.g., Radio). Lists all of the annotations that have been created so far.Ī visual indicator of the temporal progression of the frame sequence. ![]() Viewing and editing labels in the data row browserĬontains the list of annotation classes (AKA ontology) for your project.How the labeling queue and reservations works. ![]()
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