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

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. © Springer-Verlag Berlin Heidelberg 2005.