Research on the finger vein image capture and finger edge extraction

Finger vein recognition technology is a new biometric technology, which has the characteristics of the living capture, stability, difficult to steal and imitation, etc. has a wide application space in the field of information security. However, the quality of the finger vein image capture and the accuracy of the finger vein extraction are directly related to the accuracy of the recognition. According to the principle of the finger vein capture and application requirements, the finger vein image capture device and algorithm are designed, which can quickly and accurately capture the image of the finger vein. Due to the background region of the finger vein image, which affects the extraction and recognition of the vein feature, a finger region extraction algorithm is proposed according to the characteristics of the finger image edge, which can accurately extract the finger region from the background. Through different finger testing, the device can capture more clear finger vein image and get more accurate finger vein area