Hand geometry

The device would measure the hand, and the numbers needed to match the punched holes of a user ID card to activate the circuit to be identified.

In large populations, hand geometry is not suitable for so-called one-to-many applications, in which a user is identified from his biometric without any other identification.

[7] A hand-geometry system‚ Identimat, was used at Shearson Hamil on Wall Street to track attendance, marking the beginning of biometric technology usage.

This includes:[3] Although the performance of these systems is not shown to be influenced by factors such as dry skin, large rings and swelling in the fingers may pose problems.

The technology uses biometric identification by scanning the client's hand and reading various features like the position of veins and bones and it was tested by Amazon since 2019.

Geometry of a hand and some examples of measurements that can be taken by hand geometry reading devices. [ 1 ]
A hand geometry reading device with pegs to control the placement of the hand. Angled mirror on the left reflects the side view image of the hand to the camera. A CCD camera is beneath the keypad to take the top view image of the hand and the mirror image. [ 2 ]