Image Subtraction Analysis for Finger Color Variation
If a fingerprint sensor can evaluate our health conditions, health-monitoring and data-logging will be quick and easy. We record fingerprint images during an input action, process them by means of subtraction analysis and quantify variations in color and area of the fingerprint. Based on the analogy to an effectric circuit, an index related to blood vessel stiffness (resistance) is extracted from the color changes (blood flow) and the area changes (voltage). Analysis on the 150 input trials taken by 50 apparently-healthy subjects shows a correlation coefficient of 0.51 between this index and their ages.
I. Fujieda A. Hori K. Tai
Ritsumeikan University, Japan ASYCK Co. Ltd., Japan
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
615-618
2007-03-26(万方平台首次上网日期,不代表论文的发表时间)