The registration of digital images for the truss towers diagnostics

Abstract

The paper presents a semi-automatic image registration method. It includes a discussion of the most frequently used image registration methods and an analysis of the effectiveness of the registration of images of the tested object. The tested object was a power line supporting structure. For the purposes of the study, a series of photographs of this object were taken and acquired with images generated on the basis of a 3D model of the scene in a CAD environment. The main objective of the image registration performed was to allow the comparison of the actual condition of the structure (e.g. resulting from vision inspection performed by means of flying machines) with the design documentation.