1 Definition
The digital representation of the traffic signalisations used at a U-Location. For the sake of simplicity, it is assumed that Traffic Signal Descriptors are derived using Audio and Visual Scene Descriptors. The content of this Subsection can be easily extended to apply to Scene Descriptors of other Environment Sensing Technology Data.
2 Functional Requirements
Traffic Signal Descriptors include:
- Position and Orientation of the traffic audio and visual signals at the U-Location:
- Road signs
- Traffic signs
- Traffic lights
- Walkways
- Lanes
- Traffic sound
- Semantics of the traffic signals.
Traffic Signal Descriptors Objects have Attributes specifying them as Traffic Signal Descriptors.
3 Syntax
https://schemas.mpai.community/CAV2/V1.0/data/TrafficSignalDescriptors.json
4 Semantics
Label | Size | Description |
Header | N1 Bytes | Traffic Signal Descriptors Header |
– Standard | 9 Bytes | The characters “MMM-TSD-V” |
– Version | N2 Bytes | Major version – 1 or 2 Bytes |
– Dot-separator | 1 Byte | The character “.” |
– Subversion | N3 Bytes | Minor version – 1 or 2 Bytes |
TrafficSignalDescriptorsID | N4 Bytes | Identifier of Traffic Signal Descriptors. |
TrafficSignalDescriptorsData | N5 Bytes | Set of Traffic Signal Descriptors Data. |
– AVScene Descriptors | N6 Bytes | AV Scene Descriptors with specific Traffic Signal Attributes |
DescrMetadata | N7 Bytes | Descriptive Metadata |
5 Data Types and Formats
Traffic Signal Descriptors are Attributes of the Audio-Visual Scene’s Objects.
6 To Respondents
Respondents are requested to:
- Comment on, extend, or reformulate the Functional Requirements.
- Comment on the use MPAI Object and Scene Descriptors for Traffic Signal Descriptors needs.
- Identify Traffic Signal Descriptors Attributes.
- Propose alternative Traffic Signal Descriptors solutions.