Method and system for embedding binary data sequences into...

Details Method and system for embedding binary data sequences into... Method and system for embedding binary data sequences into...

2006-02-28

2006-02-28

Moise, Emmanuel L. (Department: 2137)

Cryptography

Video cryptography

Video electric signal modification

C380S269000, C382S236000, C348S420100

Reexamination Certificate

active

07006631

ABSTRACT:
The present invention is a method and system which extracts, manipulates and embeds data from a compressed and standard compliant video bitstream which may be used for digital rights management, e.g. controlling access to a bitstream or for authenticating a video bitstream.The method embeds binary data bits into compressed and standard compliant video bitstream with minimal visual artifacts. The method first parses the compressed video bitstream and locates coded blocks. The codeword C for the last triplet in the original block(RUNc,LEVELc, LASTc=1) is replaced by the VLC code word C′ for the last triplet (RUNC,LEVELC, LASTC′=0). A codeword corresponding to a triplet with LAST=1 is placed after C′ whose sign bit “s” can be either 0 or 1 and is an embedded data bit, and can be used for authentication.

REFERENCES:
patent: 5682204 (1997-10-01), Uz et al.
patent: 5821887 (1998-10-01), Zhu
patent: 6141448 (2000-10-01), Khansari et al.
patent: 6226387 (2001-05-01), Tewfik et al.
patent: 6330672 (2001-12-01), Shur
patent: 6373960 (2002-04-01), Conover et al.
patent: 6493457 (2002-12-01), Quackenbush et al.
patent: 6687384 (2004-02-01), Isnardi
patent: 6754277 (2004-06-01), Heinzelman et al.
Kiya et al., A method of inserting binary data into MPEG bitstreams for video index labeling, IEEE, US, vol. 4 of 4, Oct. 24, 1999, pp. 285-289.

Affiliated with

Also associated with

Rating

Method and system for embedding binary data sequences into... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for embedding binary data sequences into..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for embedding binary data sequences into... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3648539