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- W2391113350 abstract "To efficiently protect the copyright of 3-dimensional animation data, a robust watermark algorithm for 3-dimensional motion was proposed. The algorithm was composed of two parts: watermark embedding and watermark detection. In watermark embedding, a random seed was obtained by a Hash transform for generating pseudo-random number, and the original motion signal was processed by discrete cosine transformation (DCT). The pseudo signal created from the random seed was added to DCT coefficients and the watermarked motion signal was achieved from the inverse DCT to the adding results. In watermark detection, the watermark existence was determined by the sign-correlation detector based on analysis of the distributions of DCT coefficients. Experimental results show that the presented algorithm is robust to many attacks such as Gaussian white noise, re-sampling, smoothing, order rearranging and bi-watermark." @default.
- W2391113350 created "2016-06-24" @default.
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- W2391113350 date "2005-01-01" @default.
- W2391113350 modified "2023-09-27" @default.
- W2391113350 title "Robust blind watermark detection algorithm of 3D motion" @default.
- W2391113350 hasPublicationYear "2005" @default.
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