Banknote inspection device, banknote inspection method and banknote inspection program

摘要

A banknote inspection device that can improve the recognition accuracy of banknote serial numbers. In the bill inspection device (14), the storage unit (23) generates a first learning model generated by using an image of characters having holes as teacher data and an image of characters having no holes as teacher data. When the character image has a hole, the serial number recognition unit (24) recognizes the character forming the serial number of the bill BL by using the first learning model. When the character image does not have a hole, the second learning model is used to recognize the character forming the serial number of the bill BL.