Title :
Robust data-hiding in audio
Author :
Malik, Hajiz ; Khokhar, Ashfaq ; Ansari, Rashid
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Chicago, IL
Abstract :
A novel high capacity data hiding technique for digital audio is proposed. Imperceptibility of the embedded data is ensured based on the masking property of the human auditory system (HAS). Audio signal is decomposed into subband signals, some of which are selected for embedding data using finite-length impulse response approximations to allpass digital filters. Data detection is based on finding the filter pole-zero locations, which is achieved by power spectrum estimation of the data embedded audio signal. Performance of the proposed scheme is evaluated for different data encoding strategies. The proposed method is robust to desynchronization attacks as well as other standard data manipulation attacks
Keywords :
FIR filters; all-pass filters; audio coding; copyright; data encapsulation; poles and zeros; security of data; watermarking; allpass digital filters; audio signal decomposition; data detection; data embedded audio signal; data embedding; data encoding strategies; data manipulation attacks; desynchronization attacks; digital audio; embedded data imperceptibility; filter pole-zero locations; finite-length impulse response approximations; high capacity data hiding technique; human auditory system masking property; power spectrum estimation; robust audio data-hiding; subband signals; Data encapsulation; Encoding; Filter bank; Finite impulse response filter; Frequency; Humans; Noise robustness; Parameter estimation; Phase distortion; Spread spectrum communication;
Conference_Titel :
Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-8603-5
DOI :
10.1109/ICME.2004.1394361
