Systems, methods, processes, computer program code and means for conducting a payment transaction are provided which include activating a payment application of a mobile device, generating, using the payment application, an optical image representing payment account information associated with the payment application, said payment account information including at least one of a payment account number, an expiry date of the payment account number, and a dynamic verification code generated by the payment application; and presenting the optical image to a merchant transaction terminal for scanning to conduct the payment transaction.