1. A system for generating a three-dimensional model of an object, the system including: a portable hand-held imaging device including: a housing; a plurality of sensors attached to the housing; at least one electronic processing device coupled to the plurality of sensors, wherein the electronic processing device: determines from the plurality of sensors and whilst the imaging device is in at least two different poses relative to the object: range data indicative of a range of the object; thermal infrared data indicative of a thermal infrared image of the object; generates a three-dimensional model based at least partially upon the range data from the at least two different poses; and associates model data derived from the thermal infrared data from the at least two different poses with the three dimensional model to thereby provide a three dimensional thermal infrared model of the object.