A new two-level QR code with visual cryptography scheme.
Yuqiao ChengZhengxin FuBin YuGang ShenPublished in: Multim. Tools Appl. (2018)
Keyphrases
- qr code
- visual cryptography scheme
- secret sharing
- mobile phone
- augmented reality
- barcode
- acquired images
- visual cryptography
- secret sharing scheme
- black and white
- secret image
- image acquisition
- multi party
- hough transform
- secret data
- error correction
- mobile devices
- computer vision
- acquisition process
- blurred images
- key technologies
- smart card
- image restoration