Top quark physics measurements performed using data from the ATLAS detector
at the LHC rely on efficient reconstruction and precise calibration of leptons,
jets and missing transverse energy. A review of the techniques used to
reconstruct such objects is given, with an emphasis on the uncertainties
achieved for energy calibration and efficiency measurements, illustrated with
their impact on key top quark physics results.Comment: 5 pages, 3 figures, proceedings of Top2016 conferenc