**5.2 Enriched information**

As explained above, technology will enable a faster detection of threats on the battlefield. The Law of Moore has sometimes been used to describe the increase in the capabilities of digital cameras, according to a ratio of "twice as far" or "twice as cheap" or "twice as small" every 3 years. In fact, each innovation allows to see further for a smaller footprint. The digital zoom allows high magnifications but at the cost of algorithmic processing of the image which causes lesser definition quality. It is often paired with the optical zoom, which consists of adapting the focal length to the target you want to look at. Cameras can now merge data from multiple sensors of different types. In particular, thermal imaging allowing you to see a large fraction of the spectrum and to view and measure the thermal energy emitted by an equipment or a human. To which one can add light intensification processes to amplify the existing residual light to recreate an image usable by the human eye, in low light conditions.

All of this fused data can enrich the field of vision of the combatant by superimposing additional data that completes his knowledge of the tactical situation. This is the principle of augmented reality.
