Method and system for calibration of a space in an indoor area

A server computing device for generating a fingerprint map for an indoor area, where layout of the indoor area is previously unknown, the server computing device comprising:

• a processor;
• and
• a memory storing a set of instructions, the instructions executable in the processor to:
• obtain, from one or more data recording devices, sensorial data gathered for a space to be mapped in the indoor area;
• derive a plurality of trajectories from the sensorial data, the plurality of trajectories indicating movement of the one or more data recording devices in the space;
• estimate a plurality of map constraints of the space by applying geometry-based zone detection technique on the plurality of trajectories, the plurality of map constraints including at least a non-accessible zone;
• create, based on the plurality of trajectories and the plurality of map constraints, a structural map representing the space;
• extract, from the sensorial data, calibration information associated with a series of locations in the space;
• and
• generate, based on the calibration information and the structural map, a fingerprint map of the space for localization inside the space.