The present disclosure relates to a method of selecting representative measurements from among measurements related to an environment around a movable object and determining whether the representative measurements are associated with landmarks to realize SLAM and an electronic apparatus for the same. One or more of an electronic apparatus, a vehicle, and an autonomous vehicle of the present disclosure may be connected to, for example, an artificial intelligence module, an unmanned aerial vehicle (UAV), a robot, an augmented reality (AR) device, a virtual reality (VR) device, or a 5G service device.