In this paper we introduce a practical flight coupon automatic processing system for scanning and recognition. We discuss the coupon classification, character location and binariz...
Abstract. At FC'05, Chen et al. introduced an elegant privacy protecting coupon (PPC) system, CESSS05 [13], in which users can purchase multi-coupons and redeem them unlinkabl...
A coupon represents the right to claim some service which is typically offered by vendors. In practice, issuing bundled multi-coupons is more efficient than issuing single coupons...
A coupon is an electronic data that represents the right to access a service provided by a service provider (e.g. gift certificates or movie tickets). Recently, a privacyprotectin...