DocumentCode :
2363988
Title :
Floating Costa Scheme with fractal structure for information embedding
Author :
Komaty, Ali ; Delpha, Claude ; Fraysse, Aurelia
Author_Institution :
Naval Acad. Res. Inst. (IRENav), Brest Armée, France
fYear :
2012
fDate :
23-25 April 2012
Firstpage :
1
Lastpage :
6
Abstract :
Nowadays, multimedia data protection widely uses data hiding technology like Digital Watermarking or steganography. Among the large offer of watermarking techniques several ones are now based on the side information scheme proposed by Costa. These techniques mainly use scalar quantization for embedding a given information. Such solutions have good properties in terms of robustness and capacity but has lack of statistical transparency. In this paper we propose a new watermarking scheme based on a floating quantizer with a fractal structure. The aim of this study is to get rid of the unwanted fluctuations in the probability density function (PDF) of the watermarked signal, caused by the use of a scalar quantizer in the Scalar Costa Scheme approach (SCS). We present here the structure of a Fractal based Costa Scheme (FCS) and detail its performances. Afterwards, we compare the performances of our FCS proposed method with those obtained with the reference SCS. We show that we are able to reduce the statistical distortions obtained with this proposed scheme and keep good robustness properties.
Keywords :
audio coding; audio watermarking; data encapsulation; probability; quantisation (signal); statistical analysis; FCS; PDF; SCS; data hiding technology; digital watermarking; floating Costa scheme; floating quantizer; fractal based Costa scheme; fractal structure; information embedding; multimedia data protection; probability density function; scalar Costa scheme; scalar quantization; side information scheme; signal watermarking; statistical distortion; statistical transparency; steganography; watermarking scheme; AWGN; Bit error rate; Decoding; Fractals; Quantization; Robustness; Watermarking;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Telecommunications (ICT), 2012 19th International Conference on
Conference_Location :
Jounieh
Print_ISBN :
978-1-4673-0745-1
Electronic_ISBN :
978-1-4673-0746-8
Type :
conf
DOI :
10.1109/ICTEL.2012.6221283
Filename :
6221283
Link To Document :
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