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Watermarking for Progressive Human Motion Animation

In this paper, we present a method for a motion capture data watermarking. The digital watermarking is commonly used for copyright protection by embedding the information identifying the owner in the data. The embedded watermark should be imperceptible and robust. On the other hand, the key-framing method for progressive encoding the motion data gives the frames an order. This order is resilient to the motion retrieval. With this order, we can embed a watermark into a characteristic of the frames. We also present the method of detecting the watermark by analyzing the distribution of the suspected signal. Moreover, our watermarking scheme is a progressive watermarking, as more and more frames are sent, the confidence of the watermark increases. Experimental results show that for various motion data, our watermarking is imperceptible and robust to some possible attacks.