Information you do not have to frame first.
An ordinary QR code assumes that you can find it and frame it. NaviLens starts with a different requirement: information should remain reachable when seeing the marker is itself the difficulty.
ES SpainIn practice. Camera-readable markers and an app used for wayfinding and information. The sources document transport implementations.
What to keep in view
Marker detection does not remove physical barriers or guarantee an independently navigable journey. Performance depends on conditions and implementation; non-digital wayfinding and assistance remain important.
Change the first step
Developed in Spain, NaviLens uses multicoloured markers designed for camera detection without precise focusing. A mobile app makes their information available through audio and other accessible presentation. In transport, that can include identifying a stop and receiving service information.
The physical marker remains simple, while the phone supplies the interface. The significant change happens before someone reads anything: the system is designed around finding and interpreting information from a less exact view.
From a marker to a journey
In March 2025, the Basque Government documented NaviLens across 33 railway stations in Gipuzkoa and Bizkaia and the tram stops in Bilbao and Vitoria-Gasteiz. Its account describes camera detection in motion and information delivered through the app.
The same account reports ONCE’s assessment of the earlier pilot: the technology should coexist with other effective, less technological means of supporting independent movement. That is an important part of the implementation, not a footnote to it.
Make the whole route legible
Our reading: NaviLens shows how a small addition to an existing environment can change who can use its information. The task is not just to digitise a printed sign, but to question the abilities its original design assumed.
A useful journey still requires accurate information, maintained markers and an accessible physical route. A phone battery, camera and usable app also remain part of the system. The international deployment pictured here is in Austin; the innovation’s Spanish origin and its place of use are distinct.
Read next.
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Read colour through another language.
Both add a readable layer to visual information. One uses a camera and audio; the other uses a graphic code to communicate colour without requiring colour discrimination.