People are talking about research being done at the VCU School of Engineering.
It’s not available commercially yet, but a device called the RoboCane is in the works. Developed in part through a grant from the National Eye Institute, the robotic cane is the creation of Cang Ye, a computer scientist at Virginia Commonwealth University. It’s equipped with a 3-D camera and computer that detects and recognizes structures and potential obstacles, and is able to alert the user with voice prompts.
Check out this story about the innovation by Cang Ye, Ph.D., in the Next Avenue news website.