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Simplification Resilient LDPC-Coded Sparse-QIM Watermarking for
3D-Meshes
release_hectjichjjhlhlzxf567xj3kbe
by
Bata Vasic, Bane Vasic
Released
as a article
.
2013
Abstract
We propose a blind watermarking scheme for 3-D meshes which combines sparse
quantization index modulation (QIM) with deletion correction codes. The QIM
operates on the vertices in rough concave regions of the surface thus ensuring
impeccability, while the deletion correction code recovers the data hidden in
the vertices which is removed by mesh optimization and/or simplification. The
proposed scheme offers two orders of magnitude better performance in terms of
recovered watermark bit error rate compared to the existing schemes of similar
payloads and fidelity constraints.
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1204.2214v3
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