Misc.

Nov 10, 2006

Video Watermark with Self-Synchronization Capability

IEICE technical report
  • KURIBAYASHI Minoru
  • ,
  • MORII Masakatu

Volume
106
Number
352
First page
13
Last page
18
Language
English
Publishing type
Publisher
The Institute of Electronics, Information and Communication Engineers

One of the most important requirements for digital watermarking is the robustness against desynchronization attack. Especially for the video file, the recovery of the synchronization over a series of segments is a serious problem because a video clip will be illegally distributed. In this study, we apply cyclically permutable code (CPC) for the encoding of watermark information in order to resynchronize it from a video clip. Then the codeword is iteratively embedded into the segments of a video file. By collecting the signal from an arbitrary successive series of segments, an error correction can be effectively performed in our scheme. Furthermore, when the spread spectrum technique is applied for the modulation of each element of the codeword, the applied PN-sequence is adaptively changed in order to embed the codeword hierarchically in a series of frames in a video file.

Link information
CiNii Articles
http://ci.nii.ac.jp/naid/110005717521
CiNii Books
http://ci.nii.ac.jp/ncid/AN10060811
ID information
  • ISSN : 0913-5685
  • CiNii Articles ID : 110005717521
  • CiNii Books ID : AN10060811
  • identifiers.cinii_nr_id : 1000050346235

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