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3D Depth Imaging for Assistive Guidance

The standard white cane is the most widely used mobility tool in the blind community. However, traditional cane travel can be difficult, as standard canes are unable to detect fluctuations in terrain. To bolster the capabilities of cane travel, a novel “smart cane” has been developed, which implements realtime depth detection mechanisms to help improve the safety and efficiency of cane travel. This system consists of a 3D depth detecting camera, a single-board computer, and a haptic feedback device to locate objects and alert the user by triggering a vibration in real-time. With the use of a 5V 3A portable charger, the system is completely self-operating and can last up to five hours of usage before recharging. The combination of these tools will warn users of obstructions up to 1.5 meters away from them. This direct feedback mechanism can help the visually impaired navigate with confidence and ease.