(Spring 2013) The Impact of Aging on Fingerprint Quality

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The purpose of this study is to determine the impact of age on fingerprint quality. We will be comparing two different sets of data from two different sensors, Digital Persona U.are.U and Fujitsu Touch. The data that is being used to answer our question includes, quality score, age, and number of minutiae points for only the right index finger. By taking these two sets of data and comparing them we plan on being able to determine if there are similarities between the results. We will be looking to see if the quality score decreases with age and if the number of minutiae points increases with age.

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(Spring 2013) The Impact of Aging on Fingerprint Quality

  1. 1. THE IMPACT OF AGING ON FINGERPRINT QUALITY The purpose of this study is to determine the impact of age on fingerprint quality. We will be comparing two different sets of data from two different sensors, Digital Persona U.are.U and Fujitsu Touch. The data that is being used to answer our question includes, quality score, age, and number of minutiae points for only the right index finger. By taking these two sets of data and comparing them we plan on being able to determine if there are similarities between the results. We will be looking to see if the quality score decreases with age and if the number of minutiae points increases with age. Chelan Simonds, Darryl McLaurin, Michael Brockly, Stephen Elliott Overview Digital Persona U.are.U 18-25 26 - 63 Fujitsu Touch 18-25 26 - 61 Ages 18-25 Ages 26 & Above # People Mean Quality Mean Minutiae # People Mean Quality Mean Minutiae Digital Persona U.are.U 55 73.82 38.03 11 69.87 45.17 Fujitsu Touch 146 83.32 28.14 36 78.69 31.15 Results Conclusion All the quality scores for 18-25 year olds. Most of the quality scores are above 70. There is an outlier with a quality score of 28. Number of minutiae points for 18- 25 year olds. Most fingerprints have between 35 and 45 minutiae points. All the quality scores for 26 years old and above. Most of the quality scores are between 65 and 75. There is an outlier with a quality score of 26. Number of minutiae points for 26 years old and above. Most fingerprints have 45 minutiae points. There are a few outliers with 108, 116, and 121 minutiae points. All the quality scores for 18-25 year olds. Most of the quality scores are above 80. There is an outlier with a quality score of 44. Number of minutiae points for 18- 25 year olds. Most fingerprints have around 30 minutiae points. All the quality scores for 26 years old and above. Most of the quality scores are 75 and above. There are some outliers who have quality scores of 43 and 47. Number of minutiae points for 26 years old and above. Most fingerprints have a mean of 30 minutiae points. There is an outlier with 60 minutiae points. This table shows the mean quality scores and mean number of minutiae points for ages 18-25 and ages 26 and above. The data came from analyzing the Digital Persona U.are.U and Fujitsu Touch fingerprint sensors. We have determined that people in that 18-25 age range have better quality pictures. For each sensor the difference between the mean quality scores for the two age groups was an average of 5 which is not a very significant difference. Another thing we noticed was that the Fujitsu Touch had higher mean quality scores for each group by 10. This could also be due to the fact that Fujitsu Touch has over double the amount of people represented in each age group. We also can conclude that ages 26 and above have a greater number of minutiae points.

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