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In the last years, tracing watermarking has been proposed as a technique to provide a blind measure of the quality of service of the communication link, focusing on multimedia communication scenarios. This paper is focused on 3G video-on-demand (VOD) communication scenarios. We have exploited the new color space YST, recently introduced in the literature, where the luminance component (Y) is the same as in conventional YUV space, while the vectors S and T lie within the chrominance (UV) plane. In particular, the third component T, defined as orthogonal to the YS plane, is chosen as the channel for the embedding process (instead of the Y channel). The results show the benefits obtained in digital watermarking by the new representation versus the conventional approach, i.e. the YUV color space.
For more details: omicsonline.org/sensor-networks-data-communications.php
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