Vincent Lévesque

Experimental Results

Lateral Movement

In this example a finger pressed against a flat surface moves back and forth horizontally. A patch of skin is sticking to the glass while the surrounding skin moves with the finger. Notice the patterns of compression and expansion around the stationary patch of skin.

(a) Illustration (not to scale).

(b) Fingerprint.

Figure 1. Finger sliding over a flat surface.

(a) Relative variations in edge length.

(b) Relative variations in area.

Figure 2. Measurements obtained over an interval of 1 frame.