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find_object published /objectsStamped topic: http://wiki.ros.org/find_object_2d#Nodes

We the object id in the message, you can then get its corresponding pose with /tf. Look at this example to know how to do this: https://github.com/introlab/find-object/blob/master/src/ros/tf_example_node.cpp

What do you mean by "highest"? in elevation? if so, with /tf you could know it in meters, otherwise the homography in the objects topic can be used to know the pixels in the image.

There is no benchmark with this project, so you would have to create your own evaluation.

find_object published /objectsStamped topic: http://wiki.ros.org/find_object_2d#Nodes

We With the object id in the message, you can then get its corresponding pose with /tf. Look at this example to know how to do this: https://github.com/introlab/find-object/blob/master/src/ros/tf_example_node.cpp

What do you mean by "highest"? in elevation? if so, with /tf you could know it in meters, otherwise the homography in the objects topic can be used to know the pixels in the image.

There is no benchmark with this project, so you would have to create your own evaluation.