Estimation of Subjective Age Based on Facial Images of Others

Approach to a Younger Identity by Absolute Age Estimation Experiments

Abstract

We designed a method for estimating the subjective age of a person using facial images. The subjective age of Japanese, American, and Korean generally tended to be younger than the chronological age. However, because the subjective age was defined relatively to others, the subjective age involved two factors: underestimating their own age, and overestimating the age of other people. In this study, we conducted conventional absolute age estimation experiments on Japanese, American, and Korean in which participants were asked "How old do you think he/she is?" to investigate the two factors. The Japanese and Koreans results indicated that the tendency of younger identity occurred. Moreover, a comparison of the results in the two of experiments confirmed a significant difference in Americans. However, a comparison of the Japanese and Koreans results confirmed no significant difference, and it was suggested that Japanese and Koreans age estimation was influenced by the socio-psychological factor.