A three dimensional inspection system for inspecting an outer surface of an object, the inspection system comprising: at least one light projector and at least two calibrated cameras jointly defining a field of view of the inspection system; and a computer operatively connected to the at least one light projector and the at least two calibrated cameras, the computer being configured to: acquire three dimensional object data representative of the outer surface of the object positioned in the field of view through projection of light thereon by the at least one light projector and acquisition of return light by the at least two calibrated cameras, the three dimensional object data relating surface points on the outer surface of the object to one or more source point of the at least one light projector; generate inspection information data based on the acquired three dimensional object data; and project the inspection information data on at least some of the surface points of the outer surface of the object using the corresponding source points of the at least one light projector, the determination of an image to be displayed by the at least one light projector to project the generated inspection information data on the outer surface of the object being performed without requiring further calibration of the at least one light projector. at least one light projector and at least two calibrated cameras jointly defining a field of view of the inspection system; and a computer operatively connected to the at least one light projector and the at least two calibrated cameras, the computer being configured to: acquire three dimensional object data representative of the outer surface of the object positioned in the field of view through projection of light thereon by the at least one light projector and acquisition of return light by the at least two calibrated cameras, the three dimensional object data relating surface points on the outer surface of the object to one or more source point of the at least one light projector; generate inspection information data based on the acquired three dimensional object data; and project the inspection information data on at least some of the surface points of the outer surface of the object using the corresponding source points of the at least one light projector, the determination of an image to be displayed by the at least one light projector to project the generated inspection information data on the outer surface of the object being performed without requiring further calibration of the at least one light projector. acquire three dimensional object data representative of the outer surface of the object positioned in the field of view through projection of light thereon by the at least one light projector and acquisition of return light by the at least two calibrated cameras, the three dimensional object data relating surface points on the outer surface of the object to one or more source point of the at least one light projector; generate inspection information data based on the acquired three dimensional object data; and project the inspection information data on at least some of the surface points of the outer surface of the object using the corresponding source points of the at least one light projector, the determination of an image to be displayed by the at least one light projector to project the generated inspection information data on the outer surface of the object being performed without requiring further calibration of the at least one light projector.