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Barcodes For Mobile Phones

Abstract
2D barcodes were designed to carry significantly more data than its 1D counterpart. These codes are often used in industrial information tagging where high data capacity, mobility and data robustness are required. Mobile phones have evolved from just a voice communication device to what is now a mobile multimedia computing platform. Greater integration of multiple communication technologies into a single device has sparked some interesting applications of 2D barcodes in mobile phones.

Digital Watermarking is a technique used to label digital media by hiding copyright or other information into the underlying data. Embedding of digital watermarks is performed using 2D barcode in wavelet domain. The 2D barcode is insensitive to noise and has embedded error correction facility.

Key Words: 2D barcode, Digital watermark, Mobile internet

Introduction
The research firm Gartner predicts that sales to end users of mobile phones will exceed 762 million in 2008. A steady upward trend in the sales of smart phones indicates more people will use mobile phones whose functionalities are similar to the personal computer. [7]

Functionality of the mobile phone goes far beyond mere telecommunication; mobile phones can be used, for browsing, music and video player, digital camera, game player, electronic organizer, Global Positioning System device, electronic mailer, electronic purse, and electronic tickets for public transport. With the extensive use of mobile phones, as well as their mobility and multi functionality, mobile phones are an ideal tool for new service delivery [3]

Access to the Internet by way of the mobile phone has created a new media environment. From this basis, digital contents, music, images, video, books and games, can be directly distributed from digital content providers to end users. [1] The uniqueness of this technological advancement presents new business opportunities to the digital content publishing industry and enables end-users...