Thing > Annotation > Region > VideoObject

Definition	A sequence of Polygons, where each Polygon is associated with a TimePoint. So a VideoObject is in effect a sequence of image objects at certain time points.
URI	http://mmif.clams.ai/0.2.1/vocabulary/VideoObject

Metadata

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
document	ID	The identifier of the document that the annotation is over. This has to be defined either at the metadata level, in which case it has scope over all annotations of the same type in a view, or at the instance level, in which it has scope over just the single annotation.

Properties

Property	Type	Description
polygons	List of IDs	The Polygons that make up the object. [Required]

Properties from Annotation

Property	Type	Description
document	ID	The identifier of the document that the annotation is over.

Properties from Thing

Property	Type	Description
id	ID	A unique identifier for the annotation or document. Uniqueness is relative to the view the annotation is in or the list of documents at the top level of a MMIF file. [Required]