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

1      Definition

A Data Type including a collection of Basic Ultrasound Objects.

Ann Ultrasound Object can have a hierarchical structure where Ultrasound Objects contain Basic Ultrasound Objects and Ultrasound Objects.

2      Functional Requirements

A Ultrasound Object may include:

  1. ID of a Virtual Space (M-Instance) where it is or intended to be located.
  2. ID of the Ultrasound Object.
  3. Space-Time information of the Ultrasound Object.
  4. Basic Ultrasound Object and Ultrasound Objects included in the Ultrasound Objects.
  5. Annotation data set including:
    1. Annotations
    2. Space-Times of the Annotations.
    3. Rights to perform Actions on the Ultrasound Object.
  6. The Rights that may be exercised on the Ultrasound Object.

Note that.

  1. An Ultrasound Object that does not include Sub-Scenes and only one Basic Ultrasound Object is a Basic Ultrasound Object.
  2. The Space-Time information of a Basic Ultrasound Object and Ultrasound Object included in a Ultrasound Object may be superseded by the Space-Time information of the Ultrasound Object containing them.

3      Syntax

https://schemas.mpai.community/OSD/V1.4/data/UltrasoundObject.json

4      Semantics

Label Description
Header Ultrasound Object Header
– Standard-UltrasoundObject The characters “OSD-USO-V”
– Version Major version – 1 or 2 characters
– Dot-separator The character “.”
– Subversion Minor version – 1 or 2 characters
MInstanceID Identifier of M-Instance.
UltrasoundObjectID Identifier of the Ultrasound Object.
UltrasoundObjectSpaceTime Space-Time of Ultrasound Object.
BasicUltrasoundObjectCount Set of Parent Ultrasound Objects.
BasicUltrasoundObjects[] Set of Basic Ultrasound Objects.
– SpaceTime Space Time of a Basic Ultrasound Object in the Ultrasound Object.
– BasicUltrasoundObject A Basic Ultrasound Object in the Ultrasound Object.
UltrasoundObjectCount Number of Ultrasound Objects.
UltrasoundObjects[] Set of Ultrasound Objects.
– SpaceTime Space Time of a Ultrasound Object in the Ultrasound Object.
– UltrasoundObject An Ultrasound Object in the Ultrasound Object
Annotations[] Set of Ultrasound Object Annotation.
– Annotation An Annotation.
– AnnotationSpaceTime Where Annotation is attached and when it will be active.
– Rights Actions that may be performed on the Annotation
Rights Actions that may be performed on the Object.
DescrMetadata Descriptive Metadata

5     Conformance Testing

A Data instance Conforms with Ultrasound Object (OSD-USO) if:

  1. The Data validates against the Ultrasound Object’s JSON Schema.
  2. All Data in the Ultrasound Object’s JSON Schema
    1. Have the specified type
    2. Validate against their JSON Schemas
    3. Conform with their Data Qualifiers.

6     Performance Assessment