Title:
HIGH PAYLOAD DATA-HIDING METHOD IN AUDIO SIGNALS BASED ON A MODIFIED OFDM APPROACH
Document Type and Number:
WIPO Patent Application WO/2012/049659
Kind Code:
A3
Abstract:
Abstract. This invention relates to a high-capacity data hiding method for audio signals following the OFDM concept. It is based on changing the phase component of the audio signal via an M-order Phase Shift Keying (MPSK) modulator on selected frequency samples of the audio signal. This approach allows the data hiding capacity and perceptual distortion to be controlled by the number of altered frequency components of the audio signal and the severity of this alteration. The data hiding capacity can be estimated a priori independently of the audio signal features. In addition, due to the relation of the proposed scheme with the traditional use of MPSK modulation, the BER of the encoded data is analytically derived, therefore, it is known in advance, allowing the integration of channel encoders. Results obtained with representative test cases show that the proposed algorithm provides an increase of one order of magnitude in data payload compared with state-of-the-art works.
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Inventors:
GARCIA HERNANDEZ JOSE JUAN (MX)
FEREGRINO URIBE CLAUDIA (MX)
PARRA MICHEL RAMON (MX)
CUMPLIDO RENE (MX)
FEREGRINO URIBE CLAUDIA (MX)
PARRA MICHEL RAMON (MX)
CUMPLIDO RENE (MX)
Application Number:
PCT/IB2011/054566
Publication Date:
October 26, 2012
Filing Date:
October 14, 2011
Export Citation:
Assignee:
CT INVESTIG Y ESTUDIOS DEL IPN (MX)
INST NAC DE ASTROFISICA OPTICA Y ELECTRONICA (MX)
GARCIA HERNANDEZ JOSE JUAN (MX)
FEREGRINO URIBE CLAUDIA (MX)
PARRA MICHEL RAMON (MX)
CUMPLIDO RENE (MX)
INST NAC DE ASTROFISICA OPTICA Y ELECTRONICA (MX)
GARCIA HERNANDEZ JOSE JUAN (MX)
FEREGRINO URIBE CLAUDIA (MX)
PARRA MICHEL RAMON (MX)
CUMPLIDO RENE (MX)
International Classes:
G10L19/00
Domestic Patent References:
| WO2010018929A2 | 2010-02-18 |
Other References:
R.AMIRTHARAJAN, K.THENMOZHI, R.JOHN BOSCO BALAGURU: "Multi Carrier Steg against Omni Attacks", INTERNATIONAL JOURNAL OF COMPUTER APPLICATIONS, vol. 5, no. 11, August 2010 (2010-08-01), pages 35-40, XP002680095
LERKVARANYU S ET AL: "M-QAM demodulation in an OFDM system with RBF neural network", IEEE INTERNATIONAL MIDWEST SYMPOSIUM,, vol. 2, 25 July 2004 (2004-07-25), pages II_581 - II_584, XP010738817, ISBN: 978-0-7803-8346-3, DOI: 10.1109/MWSCAS.2004.1354225
KIYANI N F ET AL: "OFDM with BICM-ID and Rotated MPSK Constellations and Signal Space Diversity", COMMUNICATIONS AND VEHICULAR TECHNOLOGY IN THE BENELUX, 2007 14TH IEEE SYMPOSIUM ON, IEEE, PISCATAWAY, NJ, USA, 15 November 2007 (2007-11-15), pages 1 - 4, XP031339002, ISBN: 978-1-4244-1369-0
SLISKOVIC M: "Signal processing algorithm for OFDM channel with impulse noise", ELECTRONICS, CIRCUITS AND SYSTEMS, 2000. ICECS 2000. THE 7TH IEEE INTE RNATIONAL CONFERENCE ON DEC. 17-20, 2000, PISCATAWAY, NJ, USA,IEEE, vol. 1, 17 December 2000 (2000-12-17), pages 222 - 225, XP010535693, ISBN: 978-0-7803-6542-1
LERKVARANYU S ET AL: "M-QAM demodulation in an OFDM system with RBF neural network", IEEE INTERNATIONAL MIDWEST SYMPOSIUM,, vol. 2, 25 July 2004 (2004-07-25), pages II_581 - II_584, XP010738817, ISBN: 978-0-7803-8346-3, DOI: 10.1109/MWSCAS.2004.1354225
KIYANI N F ET AL: "OFDM with BICM-ID and Rotated MPSK Constellations and Signal Space Diversity", COMMUNICATIONS AND VEHICULAR TECHNOLOGY IN THE BENELUX, 2007 14TH IEEE SYMPOSIUM ON, IEEE, PISCATAWAY, NJ, USA, 15 November 2007 (2007-11-15), pages 1 - 4, XP031339002, ISBN: 978-1-4244-1369-0
SLISKOVIC M: "Signal processing algorithm for OFDM channel with impulse noise", ELECTRONICS, CIRCUITS AND SYSTEMS, 2000. ICECS 2000. THE 7TH IEEE INTE RNATIONAL CONFERENCE ON DEC. 17-20, 2000, PISCATAWAY, NJ, USA,IEEE, vol. 1, 17 December 2000 (2000-12-17), pages 222 - 225, XP010535693, ISBN: 978-0-7803-6542-1
Attorney, Agent or Firm:
CARREÑO SÁNCHEZ, Luis Antonio (no. 2508 Col. San Pedro Zacatenco,,Edificio Administrativo, 3er. piso,,Subdirección de Vinculación Tecnológica,Méxic, D.F. ., MX)
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