<> <> == Purpose == The messages in `derived_object_msgs` are meant to represent, with as much detail as possible, detected objects derived from sensor data. The contents of this package is somewhat skewed toward autonomous automotive vehicles but also contains generic messages such as Object. == Provided Message Types == In order to provide as much detail as can be provided by most sensors available today, the Object message contains: * A `detection_level` to indicate whether the object has only been "detected" or whether it is "tracked" (indicating more than one detection). * A [[http://docs.ros.org/melodic/api/geometry_msgs/html/msg/Pose.html|geometry_msgs/Pose]] to indicate the object's estimated position and orientation. * A [[http://docs.ros.org/api/geometry_msgs/html/msg/Twist.html|geometry_msgs/Twist]] to represent the object's estimated linear and angular velocities. * A [[http://docs.ros.org/api/geometry_msgs/html/msg/Accel.html|geometry_msgs/Accel]] to indicate the object's estimated linear and angular accelerations. * A [[http://docs.ros.org/api/geometry_msgs/html/msg/Polygon.html|geometry_msgs/Polygon]] to precisely define the detected object's estimated outer edge profile. * A [[http://docs.ros.org/api/shape_msgs/html/msg/SolidPrimitive.html|shape_msgs/SolidPrimitive]] to represent a shape primitive which completely encompasses the object's outer bounds (mostly for visualization). * An object classification, if one has been determined by any of the detecting sensors. * A classification certainty. * A classification age. In addition, other messages which represent real-world objects at a high level include things like Lanes, Lane Models, and Closest In-Path Vehicles. ## AUTOGENERATED DON'T DELETE ## CategoryPackage