论文信息 - Image Subtraction Analysis for Finger Color Variation

Image Subtraction Analysis for Finger Color Variation

If a flngerprint sensor can evaluate our health conditions, health-monitoring and data-logging will be quick and easy. We record flngerprint images during an input action, process them by means of subtraction analysis and quantify variations in color and area of the flngerprint. Based on the analogy to an electric circuit, an index related to blood vessel stifiness (resistance) is extracted from the color changes (blood ∞ow) and the area changes (voltage). Analysis on the 150 input trials taken by 50 apparently-healthy subjects shows a correlation coe-cient of 0.51 between this index and their ages. DOI: 10.2529/PIERS060904123126

Ichiro Fujieda | Katsuki Tai | Atsushi Hori

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