Watermarking Scheme of Sphere Object Based on MPEG-4 LASeR
نویسنده
چکیده
It is important to represent MPEG-4 BIFS with LASeR format to service the existing MPEG-4 scene in mobile environments. In this paper, a new method is suggested that watermark is inserted in the conversion process of 3D graphic nodes in MPEG-4 BIFS into LASeR 2D graphic nodes. This method uses the procedures to process z-axis coordinate value in order to process 3D nodes in BIFS and to process 3D coordinate conversion like rotation, movement and expansion. This proposed watermarking algorithm has good performance against various cropping attacks and demonstrated by experiments.
منابع مشابه
Watermarking Scheme of MPEG-4 LASeR Object for Mobile Device
It is important to represent MPEG-4 BIFS with LASeR format to service the existing MPEG-4 scene in mobile environments. 2D and 3D graphics are represented by MPEG-4 BIFS but LASeR supports only 2D nodes. Because it is difficult to represent the 3D geometry nodes of BIFS with LASeR, converting process is needed. In this paper, watermarking scheme of 3D object based on MPEG-4 LASeR is proposed. W...
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