The quickhull algorithm for convex hulls
ACM Transactions on Mathematical Software (TOMS)
Watermarking of uncompressed and compressed video
Signal Processing
Attacks on Copyright Marking Systems
Proceedings of the Second International Workshop on Information Hiding
Rotation, Translation and Scale Invariant Digital Image Watermarking
ICIP '97 Proceedings of the 1997 International Conference on Image Processing (ICIP '97) 3-Volume Set-Volume 1 - Volume 1
Perceptual Digital Watermarking for Image Authentication in Electronic Commerce
Electronic Commerce Research
Template Based Recovery of Fourier-Based Watermarks Using Log-polar and Log-log Maps
ICMCS '99 Proceedings of the IEEE International Conference on Multimedia Computing and Systems - Volume 2
BER formulation for the blind retrieval of MPEG video watermark
IWDW'02 Proceedings of the 1st international conference on Digital watermarking
A feature-based robust digital image watermarking scheme
IEEE Transactions on Signal Processing
Image watermarking based on invariant regions of scale-space representation
IEEE Transactions on Signal Processing
A New Digital Image Watermarking Algorithm Resilient to Desynchronization Attacks
IEEE Transactions on Information Forensics and Security
A watermarking technique based on one-way hash functions
IEEE Transactions on Consumer Electronics
Watermark embedding: hiding a signal within a cover image
IEEE Communications Magazine
Robust template matching for affine resistant image watermarks
IEEE Transactions on Image Processing
Rotation, scale, and translation resilient watermarking for images
IEEE Transactions on Image Processing
Geometrically invariant watermarking using feature points
IEEE Transactions on Image Processing
Geometric Invariance in image watermarking
IEEE Transactions on Image Processing
RST-invariant digital image watermarking based on log-polar mapping and phase correlation
IEEE Transactions on Circuits and Systems for Video Technology
Invariant image watermark using Zernike moments
IEEE Transactions on Circuits and Systems for Video Technology
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This paper presents a content-based desynchronization resistant digital image watermarking scheme. The image content is represented by strong important feature points obtained by our robust and improved Harris corner detector. These feature points are more resistant to geometric attacks and are therefore used by the Delaunay triangle matching and image restoration method to reduce synchronization errors. The spread-spectrum-based blind watermark embedding and retrieval scheme is applied in the Fourier domain of each perceptually highly textured subimage. The multiplicative scheme is then used to embed the same copy of the watermark at highly secure mid-frequency positions generated by one-way hash functions with different secret keys. The watermark detection decision is based on the number of matched bits between the recovered and embedded watermarks in embedding subimages. Experimental results demonstrate that our scheme is more robust to desynchronization attacks (i.e., geometric and common image processing attacks) than other peer feature-based approaches.