Employing sequences of light patterns to synchronize cameras

A method implemented by at least one server that is communicably coupled to a plurality of devices, the method comprising:

• receiving, from each device, depth information indicative of shapes of surfaces present in surroundings of said device and optical depths of points on the surfaces with respect to said device, the depth information being generated by said device using an active illuminator and an active sensor of said device;
• detecting when at least two devices from amongst the plurality of devices are in same surroundings, based on at least partial matching of respective depth information received from the at least two devices;
• and
• sending instructions to the at least two devices to generate new depth information by:
• controlling a first active illuminator of one of the at least two devices to project a sequence of light patterns on the same surroundings, whilst switching off a second active illuminator of another of the at least two devices, and
• controlling a first active sensor of the one of the at least two devices and a second active sensor of the another of the at least two devices to sense simultaneously reflections of the sequence of light patterns off the same surroundings.