Title :
An object based watermarking solution for MPEG4 video authentication
Author :
He, Dajun ; Sun, Qibin ; Tian, Qi
Author_Institution :
Labs for Inf. Technol., Media Eng., Singapore, Singapore
Abstract :
This paper presents an object based watermarking solution for MPEG4 video authentication. The watermark is embedded in the discrete Fourier transform (DFT) domain before MPEG4 encoding. Groups of DFT coefficients in the low-middle frequency band are selected for watermarking. The coefficients in every group are divided into two sub-groups based on a pre-defined pattern, and the energy relationship between these two sub-groups is used to hide the watermark. The experimental results show that our algorithm is robust against MPEG4 compression as well as object based video manipulations such as rotation, scaling and inaccurate segmentation.
Keywords :
code standards; data compression; data encapsulation; discrete Fourier transforms; video coding; watermarking; DFT coefficients; MPEG4 encoding; MPEG4 video authentication; compression robustness; data hiding; discrete Fourier transform; inaccurate segmentation; object based video manipulations; object based watermarking; pre-defined pattern; rotation; scaling; sub-groups; watermark embedding; Authentication; Discrete Fourier transforms; Discrete cosine transforms; Feature extraction; Frequency; MPEG 4 Standard; Protection; Robustness; Video compression; Watermarking;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1199530
