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Secure QR Code Scheme Using Nonlinearity of Spatial Frequency.

Hao PanYi-Chao ChenGuangtao XueChuang-Wen YouXiaoyu Ji
Published in: UbiComp/ISWC Adjunct (2018)
Keyphrases
  • spatial frequency
  • qr code
  • texture segmentation
  • low frequency
  • augmented reality
  • mobile phone
  • high frequency
  • hyperspectral
  • barcode
  • feature space
  • wavelet transform
  • hash functions