An efficient video watermarking scheme using adaptive threshold and minimum modification on motion vectors

Authors:
Kyung-Won Kang;Kwang-Seok Moon;Gwang-Seok Jung;Jong-Nam Kim
Affiliations:
Division of Electronic Computer and Telecommunication Engineering, Pukyong National University, Busan, Korea;Division of Electronic Computer and Telecommunication Engineering, Pukyong National University, Busan, Korea;Departments of Math and Computer Science, Lehman Colleague of The City University of New York, Bronx, NY;Division of Electronic Computer and Telecommunication Engineering, Pukyong National University, Busan, Korea
Venue:
ICIAR'05 Proceedings of the Second international conference on Image Analysis and Recognition
Year:
2005

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Abstract

This paper proposes an efficient video watermarking scheme using adaptive threshold and minimum modification of motion vectors. Our proposed algorithm guarantees the amount of embedded watermark data and minimizes modification of original motion vectors to avoid degradation of video quality without reducing payloads. Besides, our algorithm can embed and retrieve watermark data without any increment of bit rate and original video contents. Experimental result shows that the proposed scheme obtains better video quality than other previous algorithms by about 0.5~1.1dB. Our scheme can be useful to real-time video watermarking which must be compatible to MPEG video coding.