| 摘要 |
PROBLEM TO BE SOLVED: To efficiently estimate the photographing date or the like of a face photograph.SOLUTION: A passport processing method includes steps of acquiring an expiration date of a passport, acquiring a color of the passport, and estimating a specific date on the basis of the expiration date and the color of the passport. According to the passport processing method, since the specific date of the passport (an issue date of the passport or a photographing date of a face photograph of the passport) can be efficiently estimated, an image of the face photograph of the passport can be applied to, for example, a field of image collation or the like.SELECTED DRAWING: Figure 1 |
