Along with the rapid developments of both wireless and mobility technology, as the cellular phones are with extraordinary processing speed and abundant functions, there are creations of various innovative applications of Ubiquitous Computing. In order to improve the traditional product settlement which easily lead to a long waiting line for product checkouts in front of the cash registers of supermarkets for the POS system and one dimension product labeling which is resulted the erasion or identified difficulty, we introduce the QR-Code technique as product information management technology and adopt the locating of GPS as auxiliary marketing tool to help track each customer’s shopping paths and personal preference. We utilize of QR-Code Encoding and Decoding functions of the cellular phone, recording quickly of to-buy list inside of cellular phone product purchasing list, as well as offering functions such as product information instant check-up, price comparing and record on file without being limited by time and location, in order to let the consumers be able to enjoy the benefits of instant information with access at any time through mobility network. This is however to make savings on the time for many consumers waiting in line for product to be scanned, and through both on-line price comparing module and customized advertisement functions in the system, to provide the consumers with access at any time on the comparison of product prices.
Research on Decoding QR Code based on Image Processing Technology