Today, as the supply of smart phones becomes active and a variety of functions of smart
phones and services based on internet is utilized, a wide range of applications are being
developed and deployed. Despite the rapid growth of smart phones and the application
market, the attendance book which is currently being used is still in its primitive forms.
Previously developed automatic attendance or absence check system requires additional
equipments such as RFID reader and fingerprint reader, with higher deployment costs and
has problems of management such as mechanical failure and dishonest attendance.
In this paper, an automatic attendance check system based on smart phones utilizing the
QR code for recognizing the code using the built-in camera function of smart phones and
accessing the information included in the recognized code in real-time basis is proposed. The
proposed system, by utilizing the built-in camera function of smart phones, can reduce the
initial deployment costs because it does not require additional equipments when building the
system and has partially solved the problems of dishonest attendance and improved the
recognition rate.