osi3::DetectedItemHeader Struct Reference

The common information for a detected item as estimated by the sensor. More...

Collaboration diagram for osi3::DetectedItemHeader:

Public Types
enum	MeasurementState { MEASUREMENT_STATE_UNKNOWN = 0 , MEASUREMENT_STATE_OTHER = 1 , MEASUREMENT_STATE_MEASURED = 2 , MEASUREMENT_STATE_PREDICTED = 3 }

Public Attributes
optional Identifier	tracking_id = 1
repeated Identifier	ground_truth_id = 2
optional double	existence_probability = 3
optional double	age = 4
optional MeasurementState	measurement_state = 5
repeated Identifier	sensor_id = 6

Detailed Description

The common information for a detected item as estimated by the sensor.

Member Enumeration Documentation

MeasurementState

enum osi3::DetectedItemHeader::MeasurementState

Definition of measurement states.

Enumerator
MEASUREMENT_STATE_UNKNOWN	Measurement state is unknown (must not be used in ground truth).
MEASUREMENT_STATE_OTHER	Measurement state is unspecified (but known, i.e. value is not part of this enum list).
MEASUREMENT_STATE_MEASURED	Entity has been measured by the sensor in the current timestep.
MEASUREMENT_STATE_PREDICTED	Entity has not been measured by the sensor in the current timestep. Values provided by tracking only.

Member Data Documentation

age

optional double osi3::DetectedItemHeader::age = 4

The amount of time that this detected object has been continuously observed/tracked.

Note

\( Timestamp - Age := \) 'point in time' when the object has been observed for the first time.

Unit: s

existence_probability

optional double osi3::DetectedItemHeader::existence_probability = 3

The estimated probability that this detected item really exists, not based on history.

Note

Use as confidence measure where a low value means less confidence and a high value indicates strong confidence.

\rules is_greater_than_or_equal_to: 0 is_less_than_or_equal_to: 1 \endrules

ground_truth_id

repeated Identifier osi3::DetectedItemHeader::ground_truth_id = 2

The ID of the original detected item in the ground truth.

Note

OSI uses singular instead of plural for repeated field names.

measurement_state

optional MeasurementState osi3::DetectedItemHeader::measurement_state = 5

The measurement state.

sensor_id

repeated Identifier osi3::DetectedItemHeader::sensor_id = 6

A list of physical sensors which detected this detected item.

If SensorData has detected entities and all detections are missing, then e.g. the number of sensors can confirm the existence_probability.

Note

This information can be determined via the detected entities' detections ( ...Detection::object_id = 'this detected item' ) and the sensors (their IDs) to which these detections belong.

OSI uses singular instead of plural for repeated field names.

tracking_id

optional Identifier osi3::DetectedItemHeader::tracking_id = 1

Specific ID of the detected item as assigned by the sensor internally. Needs not to match with ground_truth_id.

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The documentation for this struct was generated from the following file:

• osi_detectedobject.proto