Measuring 2D:4D finger length ratios with Smartphone Cameras
Peer reviewed, Chapter
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https://hdl.handle.net/10642/2242Utgivelsesdato
2014-10Metadata
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Originalversjon
Sandnes, F. E. (2014, October). Measuring 2D: 4D finger length ratios with Smartphone cameras. In Systems, Man and Cybernetics (SMC), 2014 IEEE International Conference on (pp. 1697-1701). IEEE.Sammendrag
Finger length ratios have received much attention
among researchers as the 2D:4D ratio has been linked to several
physical and mental characteristics. This study explores the
feasibility of using a Smartphone as an instrument for measuring
finger length ratios. The approach taken in this study is to use
the Smartphone camera to take freehand photos of the hand
which is subsequently subjected to image analysis. Measurement
procedures include hand near and far from the body, palms up
or down, or hands in mid air versus hands resting on a flat
surface. Experimental evaluations show that the most accurate
measurements are achieved by resting the hand on a surface with
the palm facing up. These results are comparable to those
achieved with conventional procedures with an error of 1%.