1998
- G.Voyatzis, N.Nikolaidis and I.Pitas, "Digital Watermarking: An Overview", Proc. of IX European Signal Processing Conf. (EUSIPCO'98), vol. 1, pp. 9-12, 8-11 September, 1998.
- G.Voyatzis and I.Pitas, "Chaotic Watermarks for Embedding in the Spatial Digital Image Domain", Proc. of IEEE Int. Conf. on Image Processing (ICIP'98), vol. 2, pp. 432-436, 4-7 October, 1998.
- G.Voyatzis, N.Nikolaidis and I.Pitas, "Copyright Protection of Multimedia Documents:From Theory to Application",1998.
- G.Voyatzis, G.Angelopoulos, A.Bors and I.Pitas, "A system for capturing high resolution images", Proc. of Conf. on Technology and Automatics, pp. 238-242, 1998.
1997
- G.Voyatzis and I.Pitas, "Embedding Robust Watermarks by Chaotic Mixing", Proc. of 13th Int. Conf. on Digital Signal Processing (DSP'97), vol. 1, 2-4 July, 1997.
1996
- G.Voyatzis and I.Pitas, "Chaotic Mixing of Digital Images and Applications to Watermarking", Proc. of European Conf. on Multimedia Applications,services and Techniques (ECMAST'96), vol. 2, May, 1996.
- G.Voyatzis and I.Pitas, "Applications of Toral Automorphisms in Image Watermarking", Proc. of 1996 IEEE Int. Conf. on Image Processing (ICIP'96), vol. 2, pp. 237-240, 16-19 September, 1996.
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