Title :
DCT-based watermarking for video
Author :
Hsu, Chiou-Ting ; WU, JA-LING
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
2/1/1998 12:00:00 AM
Abstract :
An MPEG-based technique for embedding digital “watermarks” into digital video is proposed. The watermarking technique has been proposed as a method to hide secret information in the signals so as to discourage unauthorized copying or attest the origin of the media. In the proposed method, we take advantage of prediction types of MPEG bitstreams to embed watermarks into both intraframe and non-intraframe with different residual masks. The experimental results show that the proposed watermarking technique results in an almost invisible difference between the watermarked frames and the original frames, and is also robust to cropping operations and MPEG compression
Keywords :
code standards; copyright; data compression; discrete cosine transforms; image sequences; prediction theory; security of data; telecommunication standards; transform coding; video coding; DCT-based watermarking; MPEG compression; MPEG prediction type bitstreams; MPEG-based technique; coding standard; cropping operations; digital video; digital watermarks; experimental results; image sequences; intellectual property protection; intraframe coding; nonintraframe coding; original frames; residual masks; unauthorized copying; video coding; watermarked frames; Degradation; Image coding; Intellectual property; Painting; Protection; Robustness; Seals; Signal processing; Transform coding; Watermarking;
Journal_Title :
Consumer Electronics, IEEE Transactions on