Are there any benchmarks on the speed (in FPS or ms/pose) with regards to your pose estimation module for the ZED cameras?

The framerate of the object tracking/pose estimation is around 20FPS, but it also depends on the depth mode used, and the camera FPS/Resolution. (If it's 15FPS for the camera, it won't be more for the object detection).

 

The precision of the distance is directly linked to the precision of the depth measurement:

At 1 meter, you can reach a precision of few centimeters (<5%)
At 20 meters, the distance precision is 10% therefore around 2 meters (19m - 21m)

 

Additional Resources:

How does the ZED work?

Getting Started with your ZED camera