A Robust Secret Sharing QR Code via Texture Pattern Design

The quick response (QR) codes have been widely used in a variety of applications, due to their fast readability and robustness against various distortions. In this work, we propose a robust secret sharing QR code scheme, which allows multiple users to share one secret through their QR codes. The QR code of each user, even in the printed/scanned form, is decodable by a standard QR decoder, and can be combined with other shared QR codes to recover the secret message through a correlation mechanism. A key factor leading to the success of our proposed scheme is to replace the modules of the standard QR codes with elaborately designed texture patterns. Extensive experimental results are provided to show the superior performance of our method.