X-ray images are in general very complex due to the superposition of 3D objects in a semi-transparent 2D image, which makes automated threat detection quite a challenging task. The weapons detection solution designed by Optosecurity relies heavily on feature extraction and shape recognition, although it also uses basic material analysis and a number of sophisticated signal processing algorithms.

At the heart of this solution lies the most extensive X-ray threat library in the world. This library was produced using a patented methodology to capture geometrically corrected 3D views of selected weapons thus making it possible to reproduce practically any possible view for any given object in the library.

Custom search filters and methods were derived from these hundreds of thousand of views to produce a solution capable of detecting practically any type of handgun within a mere 5 seconds.