The specification of Visual (Basic) Scene Descriptors is derived from that of the Audio-Visual (Basic) Scene Descriptors by removing Visual Objects and Audio-Visual Objects. The Headers are, respectively:

Visual Basic Scene Descriptors

“Header”: {

“type”: “string”,

“pattern”: “^OSD-VBS-V[0-9]{1,2}[.][0-9]{1,2}$”

},

Visual Scene Descriptors

“Header”: {

“type”: “string”,

“pattern”: “^OSD-VSD-V[0-9]{1,2}[.][0-9]{1,2}$”

},