Robust algorithm for watermark recovery from cropped speech

Author

Gurijala, Aparna ; Deller, J.R., Jr.

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA

Volume

3

fYear

2001

fDate

2001

Firstpage

1357

Abstract

Most digital watermarking techniques are susceptible to damage by data cropping. Although the effects of cropping might not be perceptible, watermark recovery may be rendered difficult or impossible due to the desynchronization of the recovery process. The transform encryption coding (TEC) based watermarking algorithm was presented at ICASSP 2000 (see Ruiz, F.J. and Deller, J.R., Jr, IEEE International Conference on Acoustics, Speech and Signal Processing 2000). This paper investigates the performance of TEC watermarking in the presence of cropping, and presents an algorithm that identifies cropped samples and recovers watermarks from the damaged record. Implementation details and experimental results under different environmental conditions are presented

Keywords

copy protection; cryptography; speech coding; transform coding; cropped speech; data cropping; digital watermarking techniques; recovery process desynchronization; transform encryption coding; watermark recovery; Costs; Cryptography; Energy measurement; Filters; Gain measurement; Robustness; Security; Signal processing; Speech processing; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on

Conference_Location

Salt Lake City, UT

ISSN

1520-6149

Print_ISBN

0-7803-7041-4

Type

conf

DOI

10.1109/ICASSP.2001.941180

Filename

941180