Improved video watermarking for MPEG encoders using motion analysis

Isao Echizen, Hiroshi Yoshiura, Kousuke Anzai, Jun'ichi Taguchi, Kazunori Nakano, Satoru Tezuka

Research output: Contribution to journalArticle

Abstract

Maintaining picture quality is an essential requirement for video watermarking, and this paper shows that watermarks are less perceptible when they are embedded where picture contents are moving. It also describes a new watermarking method that uses motion detection to preferentially allocate watermarks to macro-blocks containing motion. As well it presents the results of experimental evaluations which demonstrate that this method significantly reduces degradation in picture quality. Further it shows that, for the same picture quality after MPEG encoding and decoding, 30% more watermarks can be embedded than with the previous method. This new method would be most effective when implemented in MPEG encoders, which already have the necessary motion analysis functions; it can also be used in content-distribution systems.

Original languageEnglish
Pages (from-to)233-242
Number of pages10
JournalKyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers
Volume58
Issue number2
DOIs
Publication statusPublished - 2004 Feb
Externally publishedYes

Keywords

  • Block-matching techniques
  • MPEG encoders
  • Picture quality
  • Video watermarking

ASJC Scopus subject areas

  • Media Technology
  • Computer Science Applications
  • Electrical and Electronic Engineering

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