Developing biometric passive recognition sensor applicable to wearable devices: Part II — Preliminary verification with a shuttle roller coaster structure

This paper reports a new wrist vein biometric passive recognition sensor with preliminary verification based on a shuttle roller coaster structure. This sensor can obtain the vein images around the wrist to construct a 3D vein model for vein recognition. The experiment has proved that this sensor provide more information for the 3D vein modeling, which paves the way for the following design. It is believed that this sensor can be applied in the wearable devices in mobile environment for high accuracy vein recognition, which will expand the application of personal smart devices.