Which of the following are the valid categories of hand geometry scanning?
A.
Electrical and image-edge detection.
B.
Mechanical and image-edge detection.
C.
Logical and image-edge detection.
D.
Mechanical and image-ridge detection.
Explanation:
Hand geometry reading (scanning) devices usually fall into one of two categories:
mechanical or image-edge detection. Both methods are used to measure specific characteristics of a
person’s hand such as length of fingers and thumb, widths, and depth.