We are very proud to announce the publication of our second paper in the Physical Review Fluids (PRF), a journal of the American Physical Society published in Physical Review Fluids:
High-resolution and high-speed live optical flow velocimetry
This publication marks an important milestone for Photon Lines and for eye4you, our brand of optical benches and state-of-the-art imaging platforms.
Through this article, it is notably eyePIV, our PIV software, whose performance has been validated and recognized by the international scientific community.
Why?
Because in experimental fluid mechanics, achieving simultaneously high spatial resolution, high calculation frequencies and real-time processing remains a major challenge for the scientific community.
This APS article, written by Juan Pimienta, PhD in fluid mechanics at Photon Lines, and Jean-Luc Aider, Research Director at the CNRS within the PMMH laboratory at ESPCI, confirms and documents the performance achieved with eyePIV:
⇒ up to 1,400 velocity fields calculated per second with 1 Mpx images,
⇒ dense “one vector per pixel” fields,
⇒ images up to 21 Mpx processed in real time,
⇒ spatial resolution far exceeding that of conventional PIV approaches.
Above all, this work demonstrates that it is now possible to overcome the traditional trade-off between:
- computational speed,
- resolution,
- measurement density,
- and real-time analysis.
With eyePIV, we are no longer simply talking about data acquisition.
We are now talking about LIVE physical analysis:
✅ real-time calculation of velocity fields,
✅ immediate extraction of physical quantities in global or local form,
✅ long-term monitoring without massive storage,
✅ real-time calculation of average fields,
✅ image triggering based on velocity fields,
✅ signal generation from velocity fields for closed-loop control.
The most important thing for us, however, remains the scientific validation of these results. The performance results presented in this article have been:
🔹 benchmarked against complex synthetic cases,
🔹 compared with conventional PIV approaches and recent AI methods,
🔹 experimentally validated on real flows,
🔹 and then reviewed and accepted by the APS community.
This recognition confirms that eyePIV is not merely a technological demonstration: it represents a genuine methodological breakthrough for the measurement of high-frequency, high-resolution flows.
Congratulations to all the teams involved in this scientific and technological venture.
