Global Track Attributes (Video Tasks)

For videoannotation and videoplaybackannotation tasks, using the "global": true flag when defining attributes marks an attribute as a global track attribute. This means the attribute's value should be consistent across the entire track, instead of being allowed to vary from frame to frame.

{
  "annotation_attributes": {
    "car_color": {
      "type": "category",
      "description": "What is the color of the car?",
      "choices": ["red", "green", "blue"],
      "global": true,
    }
  }
}