QR code reading is changing our everyday lives. QR codes are used for everything from restaurant menus, transportation tickets, event registration, and obtaining product information. Simply scanning a QR code with a smartphone is a convenient and hassle-free way to access necessary information without using paper. In addition, with the spread of cashless payments, QR code-based payments are spreading rapidly, so QRコード読み取りenabling smooth and secure transactions. Furthermore, QR codes are also being used in healthcare and education, making it easier to manage patient information and provide learning materials; the convenience and efficiency that QR code reading brings is changing our lives in ways that are more comfortable and efficient.