In this paper, a review of the background and some drivers are provided for X-ray screening for aviation security. Some of the key considerations are highlighted along with impacts of the image-based approaches and signature approaches. The role of information theory is discussed along with some recent work that may influence the technical direction by posing the question: “what measurements, parameters and metrics should be considered in future system design?” A path forward should be based on information theory, however electronic machines will likely interface with humans and be dollar-cost driven, so ultimately solutions must consider additional parameters other than only technical performance factors.
T. Harvey, T. Harvey,
"Aviation security x-ray detection challenges", Proc. SPIE 9847, Anomaly Detection and Imaging with X-Rays (ADIX), 984702 (12 May 2016); doi: 10.1117/12.2228957; https://doi.org/10.1117/12.2228957