Sign​Recognition

Timestamp of the message

Describes the relative position of the traffic sign in respect to the vehicle and the vehicle reference axis.

describes the type of road sign.

Enumeration used to indicate the permanency of a sign (static sign versus a variable (electronic) message sign).

The value of a sign. For example a speed limit sign has a speed limit value. The sign value does not have any unit but does reflect the text, that is written on the sign. Example: Speed limit shows ‘30’, value="30" Speed limit shows ‘45 mph’, value="45 mph" Maximum height ‘12”’, value = "12”" Maximum width ‘2,2m’, value = "2,2m" Maximum weight ‘12 to’, value = "12 to"

The optional value of a validity sign. Provided with the sign itself.

The sign event type indicates whether a sign was detected or a sign was not detected. Not detecting a sign is a meaningful information to report signs that are no longer present.

If the Sign Recognition is combined with an object Recognition, then here, the reference to the recognized object is given. The Object ID is for message internal references between objects of same or different type of Path Events.

If the Sign Recognition is provided with a media content then here, the reference to the media is given. The Media ID is for message internal references between the object and an optional provided media content.

The Confidence Value determining the detection quality and the belief in the correctness of the provided Sign Recognition

Unit: Percent(%) | Range: 0..100% | Resolution: 1

The SignID determined by the vehicle based on map matching. When mapMatchedSignID is provided, it is required that the mapVersion, mapProvider and mapStandard are provided in the envelope.

In the case, where the list above for road Sign Type does not capture the type of the sign detected, the provider can use this field to send that information.

The size of the sign measured in length, breadth and width.

Unit: Meter [m] in 3D| Range: 0..MAX m in 3D| Resolution: 0.01m in 3D

Describes the shape Shape of the recognized sign

The rotation of the sign in degrees measured in counterclockwise in x, y and z planes. The value 0,0,0 means, that the sign plane is perpendicular (90°) to the view and no distortion to the sign is experienced. If viewing the sign from in an angle of 45° from the right, a value of 45° along the vertical Axis is provided. The sign is rotated by 45° counterclockwise along the horizontal (bottom-up) axis according to ENU-definition.

Unit: Degree [°] in 3D| Range: 0..360° in 3D| Resolution: 1° in 3D

The dependency text indicated on the sign or a supplemental plaque. This type is used if an appropriate dependency cannot be mapped to the Specification due to a variety of content of supplemental dependencies. Specified values are: Time dependency: A time based dependency where the sign is valid between two given times of the day is formatted as “HHMM-HHMM” in 24h format where one or more spaces may be before and behind the dash “-“ but no spaces or additional characters within the 4 digit time block.

Contains the description and byte value of an dynamic extension content, that is undefined in this Specification.