Comparative Study of Wavelet Based Lattice QIM Techniques and Robustness Against AWGN and JPEG attacks

Dieter Bardyn, Ann Dooms, Tim Dams, Peter Schelkens

Research output: Chapter in Book/Report/Conference proceedingConference paper

8 Citations (Scopus)

Abstract

We study watermarking techniques based on Quantization
IndexModulation for which sets of lattice quantizers Qm are used (LQIM).
A recipe for constructing such quantizers Qm is proposed, where the size
of these sets is variable, so that the payload is easily adaptable. We
make a comparative study of 8 dimensional lattices with good quantizer
properties, where the embedding is done in the wavelet domain. Along
the way, the gap between the theoretical ideas behind QIM and practical
systems using lattices is closed by extending techniques, such as dithered
quantizers and distortion compensation, from the scalar case to LQIM.
Original languageEnglish
Title of host publicationProceedings of the 8th International Workshop on Digital Watermarking (IWDW09), Lecture Notes in Computer Science
EditorsAnthony T.s. Ho, Yun Q. Shi, H.j. Kim, Mauro Barni
PublisherSpringer
Pages39-53
Number of pages15
Volume5703
ISBN (Print)978-3-642-03687-3
Publication statusPublished - 17 Aug 2009
EventFinds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet - Stockholm, Sweden
Duration: 21 Sep 200925 Sep 2009

Conference

ConferenceFinds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet
Country/TerritorySweden
CityStockholm
Period21/09/0925/09/09

Bibliographical note

Anthony T.S. Ho, Yun Q. Shi, H.J. Kim, Mauro Barni

Keywords

  • digital watermarking
  • quantization index modulation
  • lattice

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