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dpi-10.1016/j.apmt.2021.101146 farking-rainbows-to-fire-uber-drivers

This rainbow-making tech could help autonomous vehicles read signs [buffalo.edu]:

“Currently, autopilot systems face many challenges in recognizing traffic signs, especially in real-world conditions,” Gan says. “Smart traffic signs made from our material could provide more signals for future systems that use LIDAR and visible pattern recognition together to identify important traffic signs. This may be helpful to improve the traffic safety for autonomous cars.”

“We demonstrated a new combined strategy to enhance the LIDAR signal and visible pattern recognition that are currently performed by both visible and infrared cameras,” Rada says. “Our work showed that the MCI is an ideal target for LIDAR cameras, due to the constantly strong signals that are produced.”

A U.S. patent [googleapis.com] for the retroreflective material has been issued, as well as a counterpart in China, with Fudan University and UB as the patent-holders. The technology is available for licensing.

Gan says future plans include testing the film using different wavelengths of light, and different materials for the microspheres, with the goal of enhancing performance for possible applications such as traffic signs designed for future autonomous systems.

In addition to Gan, Rada and Hu, authors of the new Applied Materials Today study include PhD candidate Lyu Zhou, Research Assistant Professor Haomin Song and PhD graduate Xie Zeng in the UB Department of Electrical Engineering; Jing Zeng, PhD, and Limin Wu, PhD, at Fudan University; Shakil Shimul, PhD, and Wei Li, PhD, at Texas Tech University; Wen Fan, PhD, at Hubei University; and Qiwen Zhan, PhD, at the University of Shanghai for Science and Technology. The research was partially funded by a grant from the U.S. National Science Foundation.

Journal Reference:
Redirecting, (DOI: 10.1016/j.apmt.2021.101146 [doi.org])

Original Submission