Annotation > Region > Polygon > BoundingBox

Definition A rectangular object in an image or video. It does not add new features compared to its parent type Polygon, but it ntroduced as a subtype because the term is in widespread use.


Metadata from Region

Property Type Description
unit String The unit used to determine boundaries. For text regions this is typically *offsets* to indicate character offsets, for images this is could be *pixels*, and for audio or video streams *seconds*, *milliseconds*, *timestamps* or *frames*.

Metadata from Annotation

Property Type Description
medium ID The identifier of the medium that the annotation is over. [Required]


Properties from Polygon

Property Type Description
coordinates List of pairs The coordinates of the polygon. [Required]
timePoint ID If on a video stream, the TimePoint that the BoundingBox occurs in.

Properties from Annotation

Property Type Description
id ID A unique identifier for the annotation. Uniqueness is relative to the view the annotation is in. [Required]