Efficient and secure forensic marking in compressed domain
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 1, 2013
Grant Date -
Nov 29, 2012
app pub date -
Aug 6, 2012
filing date -
Jun 24, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods, devices, and computer program products enable the embedding of forensic marks in a host content that is in compressed domain. These and other features are achieved by preprocessing of a host content to provide a plurality of host content versions with different embedded watermarks that are subsequently compressed. A host content may then be efficiently marked with forensic marks in response to a request for such content. The marking process is conducted in compressed domain, thus reducing the computational burden of decompressing and re-compressing the content, and avoiding further perceptual degradation of the host content. In addition, methods, devices and computer program products are disclosed that obstruct differential analysis of such forensically marked content.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- H04L Class
- 16732 Applications Filed
- 14636 Patents Issued To-Date
- 87.48 % Issued To-Date
