Title :
Blind QIM-LDPC watermarking of 3D-meshes
Author :
Vasic, Bane ; Vasic, Bane
Author_Institution :
Dept. of Electron., Univ. of Nis, Nis, Serbia
Abstract :
We introduce a method for blind watermarking of three dimensional (3D) meshes based low-density parity check (LDPC) coded quantization index modulation (QIM). The 3D host vertex selection algorithm identifies vertices in rough concave regions of the surface that are invariant to mesh optimization/simplification on which the QIM operates. The LDPC code recovers the runlength coded data hidden in the vertices deleted by mesh optimization and/or simplification. For a given bit-error rate performance of a recovered watermark, the proposed scheme permits storing much longer watermarks compared to the state of the art approaches.
Keywords :
error statistics; modulation coding; optimisation; parity check codes; quantisation (signal); watermarking; 3D host vertex selection; 3D-meshes; bit error rate; blind QIM-LDPC watermarking; coded quantization index modulation; low-density parity check code; mesh optimization; optimization-simplification; rough concave regions; runlength coded data; three dimensional meshes; Encoding; Iterative decoding; Optimization; Synchronization; Three-dimensional displays; Watermarking; 3-D mesh; data hiding; deletion channels; error correction; iterative decoding; low-density parity check codes; quantized index modulation; watermarking;
Conference_Titel :
Communications Workshops (ICC), 2013 IEEE International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICCW.2013.6649324
