Transmission Error Detection and Copyright Protection for MPEG-2 Video Based on Channel Coded Watermark


KIPS Transactions on Computer and Communication Systems, Vol. 12, No. 7, pp. 745-754, Jul. 2005
10.3745/KIPSTB.2005.12.7.745, Full Text:

Abstract

This paper proposes an information hiding algorithm using channel coding technique which can be used to detect transmission errors and to protect copyright for MPEG-2 video. The watermark signal is generated by applying copyright information of video data to a convolutional encoder, and the signal is embedded into macro blocks in every frame while encoding to MPEG-2 video stream. In the decoder, the embedded signal is detected from macro blocks in every frame, and the detected signal is used to localize transmission errors in the video stream. The detected signal can also be used to claim ownership of the video data by decoding it to the copyright information. In this stage, errors in the detected watermark signal can be corrected by channel decoder. The 3 video sequences which consist of 300 frames each are applied to the proposed MPEG-2 codec. Experimental results show that the proposed method can detect transmission errors in the video stream while decoding and it can also reconstruct copyright information more correctly than the conventional method.


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Cite this article
[IEEE Style]
C. S. Bae, "Transmission Error Detection and Copyright Protection for MPEG-2 Video Based on Channel Coded Watermark," KIPS Journal B (2001 ~ 2012) , vol. 12, no. 7, pp. 745-754, 2005. DOI: 10.3745/KIPSTB.2005.12.7.745.

[ACM Style]
Chang Seok Bae. 2005. Transmission Error Detection and Copyright Protection for MPEG-2 Video Based on Channel Coded Watermark. KIPS Journal B (2001 ~ 2012) , 12, 7, (2005), 745-754. DOI: 10.3745/KIPSTB.2005.12.7.745.