Studio Labeling Units (LUs) Explained

What are Labeling Units (LUs)?

Labeling Units is Scale Studio's tracking of annotation usage. Most annotations are 1 LU, though there are a few exceptions that will be described in more detail in this page.

How many LUs do I have?

The best way to check how many LUs you have is to visit this link after logging in: https://dashboard.scale.com/studio/settings/billing

What is the conversion of annotations to LUs?

Project Type	Annotation Type and LUs
General Image Annotation	Geometries (bounding boxes, polygons, etc.) - 1 LU Geometry Attributes - 0.5 LU Task-wide Attributes (Global attributes) - 1 LU
2D Semantic Segmentation	Instances - 1 LU Instance Attributes - 0.5 LU Task-wide Attributes (Global attributes) - 1 LU
Text Collection / Categorization	Fields - 1 LU Every 1 min of audio (rounded up) - 1 LU Every 1 min of video (rounded up) - 1 LU
Document Transcription	Annotations - 0.5 LUs (includes OCR) Links - 0.25 LU Fields - 1 LU
Audio Transcription	Annotations - 2 LUs for every 10 seconds (includes auto-transcription)
Named Entity Recognition (NER)	Annotations - 1 LU Relationships - 0.5 LU Attributes on Annotations - 0.5 LU Task-wide Attributes (Global attributes) - 1 LU
Video Playback Annotation	Geometries per frame - 0.25 LU Geometry Attributes per frame - 0.1 LU Task-wide Attributes (Global Attributes) - 1 LU Events - 1 LU In some cases, customers choose to use the video format to group images together for annotation. In these case, Studio will assess LU usage at General Image Annotation rates.
LIDAR (3D)	Annotations - 7 LU Attributes - 2 LU

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Each task will be charged a minimum of 1 LU.
Even if there are no labels on a task, the task will still be charged as 1 LU.

If you have any questions on your project, send us an email at scale_studio@scale.com.