1     Definition 2     Functional Requirements 3     Syntax
4     Semantics 5    Conformance Testing 6     Performance Assessment

1      Definition

An Item represented by a series of Basic Scene Descriptors for a certain duration (from a start Time to an end Time).

2      Functional Requirements

Basic Event Descriptors contains Basic Scene Descriptors between two Times.

3      Syntax

https://schemas.mpai.community/OSD/V1.5/data/BasicEventDescriptors.json

4      Semantics

Label Description
Header Basic Event Descriptors Header – Standard “OSD-BED-Vx.y”.
MInstanceID Identifier of the M-Instance.
UEnvironmentID Identifier of the U-Environment.
BasicEventDescriptorsID Identifier of this Basic Event Descriptors instance.
BasicEventDescriptorsTime Time of this Basic Event Descriptors instance.
BasicEventDescriptorsSpaceTime Start and end Space-Time of the event.
BasicSceneDescriptors[] The Basic Scene Descriptors between the start Time and the end Time of the event, each embedded or given by its ID.
DataXMData Information on this Basic Event Descriptors instance.
DescrMetadata Descriptive Metadata.

5     Conformance Testing

A Data instance Conforms with Basic Event Descriptors (OSD-BED) if:

  1. The Data validates against the Basic Event Descriptors’ JSON Schema.
  2. All Data in the Basic Event Descriptors’ JSON Schema
    1. Have the specified type
    2. Validate against their JSON Schemas
    3. Conform with their Data Qualifiers if present.

6     Performance Assessment