GNSS/INS aided precise re-photographing

Re-photographing is a well-established method of acquiring new images in the same location where old photos were taken, in order to visualize changes and evolutions of the analyzed scene. According to the goal of the re-photographing procedure, different techniques can be employed, mainly based on visual methods, image cues or positioning sensors. The paper, after a review of the re-photographing procedures and techniques, presents a GNSS/INS aided method to achieve precise re-photographing results. Architectural and natural scenarios are used to test the developed method.