- Tytuł:
- 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. - Powiązania:
- https://bibliotekanauki.pl/articles/227242.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
watermarking
copy-move forgery
discrete Cosine
transform
quantization index modulation
hash bits - Opis:
- 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.
- Źródło:
-
International Journal of Electronics and Telecommunications; 2019, 65, 3; 527-532
2300-1933 - Pojawia się w:
- International Journal of Electronics and Telecommunications
- Dostawca treści:
- Biblioteka Nauki
Artykuł