1. A method for assessing a physical structure, comprising: receiving, by one more computing devices, information indicative of an infrared image, wherein the infrared image includes a portion of the physical structure; determining, by the one or more computing devices, one or more indicators within the infrared image, wherein the one or more indicators exceed a heat threshold; determining, by the one or more computing devices, a plurality of characteristics of the one or more indicators; receiving, by the one or more computing devices, information indicative of an expected heat signature pattern corresponding to a plurality of fasteners; comparing, by the one or more computing devices, the plurality of characteristics to the expected heat signature pattern; determining, by the one or more computing devices, a correlation based on the comparison; classifying, by the one or more computing devices, the one or more indicators according to the determined correlation; and determining, by the one or more computing devices, a condition of the physical structure based on the classification of the one or more indicators.