Localization of Copy-Move Forgery in Speech Signals Through Watermarking Using DCT-QIM

• Autorzy: Lalitha N.V. , Rao Ch. Srinivasa , Jaya-Sree P.V.Y.

Identyfikatory

DOI

10.24425/ijet.2019.129809

• Języki publikacji: EN

Abstrakty

EN

Digital speech copyright protection and forgery identification are the prevalent issues in our advancing digital world. In speech forgery, voiced part of the speech signal is copied and pasted to a specific location which alters the meaning of the speech signal. Watermarking can be used to safe guard the copyrights of the owner. To detect copy-move forgeries a transform domain watermarking method is proposed. In the proposed method, watermarking is achieved through Discrete Cosine Transform (DCT) and Quantization Index Modulation (QIM) rule. Hash bits are also inserted in watermarked voice segments to detect Copy-Move Forgery (CMF) in speech signals. Proposed method is evaluated on two databases and achieved good imperceptibility. It exhibits robustness in detecting the watermark and forgeries against signal processing attacks such as resample, low-pass filtering, jittering, compression and cropping. The proposed work contributes for forensics analysis in speech signals. This proposed work also compared with the some of the state-of-art methods.

Słowa kluczowe

EN

watermarking; copy-move forgery; discrete Cosine; transform; quantization index modulation; hash bits

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2019
• Tom: Vol. 65, No. 3
• Strony: 527--532
• Opis fizyczny: Bibliogr. 23 poz., rys., wykr., tab.

Twórcy

autor

Lalitha N.V.

• Dept. of Electronics and Communication Engineering, GMR Institute of Technology, Rajam, A.P, India

autor

Rao Ch. Srinivasa

• Dept. of Electronics and Communication Engineering, JNTU-K University, Vizianagaram, A.P, India

autor

Jaya-Sree P.V.Y.

• Dept. of Electronics and Communication Engineering, GIT, GITAM University, Visakhapatnam, A.P, India

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).