Title :
An audio watermarking scheme based on VQ codebook pairing
Author :
Zhou, Yun ; Wang, Rangding ; Yan, Diqun
Author_Institution :
Sch. of Inf. Sci. & Eng., Ningbo Univ., Ningbo, China
Abstract :
An audio watermarking scheme based on VQ codeword pairing is proposed. The original audio signal is segmented into frames and the watermarking information is embedded into several frames. The embedding operation is conducted by modulating the middle-frequency coefficients after MDCT transform according to the watermarking sequence and the genus bits of subcodebooks. The subcodebooks are formed by codeword pairing. The extraction of watermarking needs no original audio signal and only demands to determine which subcodebook the matched codeword of middle-frequency coefficients belong to. Experimental results show that the proposed scheme has good performance on imperceptibility and has robustness to the normal attacks of lossy compression, addnoise and so on.
Keywords :
discrete cosine transforms; watermarking; MDCT transform; VQ codebook pairing; audio signal; audio watermarking scheme; middle frequency coefficient; watermarking sequence; Image coding; Nuclear magnetic resonance; Robustness; Transforms; Vector quantization; Watermarking; VQ; audio watermarking; codeword pairing; subcodebook;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5648018
