Experimental Results
Surface with a Bump
In this experiment, a fingertip is moving from left to right over a bump located approximately in the region bordered by green dotted lines in Figure 1(b). Figures 2 and 3 show a clear pattern of compression on the left of the bump and stretch on the right of the bump.
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(a) Illustration (not to scale). |
(b) Fingerprint with approximate position of bump. |
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Figure 1. Finger sliding over surface with a bump. |
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(a) Interval of 1 frame. |
(b) Interval of 11 frames. |
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Figure 2. Measurements obtained from the relative variations in edge length. |
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(a) Interval of 1 frame. |
(b) Interval of 11 frames. |
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Figure 3. Measurements obtained from the relative variations in area. |
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