DocumentCode :
433212
Title :
Multiresolution fragile watermarking using complex chirp signal for content integrity verification
Author :
Yu, Dan ; Sattar, Farook ; Barkat, Braham
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Volume :
5
fYear :
2004
fDate :
24-27 Oct. 2004
Firstpage :
3427
Abstract :
This paper proposes a wavelet-domain multiresolution fragile watermarking scheme using an improved quantization-index-modulation (QIM) embedding technique. A secure embedding zone is exploited in our proposed scheme to reduce the false detection rate of Kundur´s scheme. The frequency modulated (FM) complex chirp signal is employed as watermark. Both the real and the imaginary parts of the chirp signal are embedded simultaneously in a hierarchical manner. Unlike the conventional schemes, the proposed scheme does not require the original watermark for content integrity verification. The blind authentication process allows embedding of arbitrary FM chirp watermarks.
Keywords :
chirp modulation; embedded systems; frequency modulation; image coding; image resolution; quantisation (signal); watermarking; FM; blind authentication process; content integrity verification; embedding technique; embedding zone; false detection rate; frequency modulated complex chirp signal; multiresolution fragile watermarking; quantization-index-modulation; Amplitude modulation; Authentication; Chirp modulation; Frequency modulation; Matched filters; Protection; Pulse modulation; Signal resolution; Software tools; Watermarking;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
ISSN :
1522-4880
Print_ISBN :
0-7803-8554-3
Type :
conf
DOI :
10.1109/ICIP.2004.1421851
Filename :
1421851
Link To Document :
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