Joint optimization of data hiding and video compression

Jithendra K. Paruchuri, Sen Ching Samson Cheung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations


From copyright protection to error concealment, video data hiding has found usage in a great number of applications. Recently proposed applications such as privacy data preservation require huge amount of information to be hidden inside a compressed video bitstream. Since data hiding disturbs the underlying statistical patterns of the source data, it adversely affects the performance of compression which are designed based on the statistical properties of the data. As such, it is imperative to design a data hiding scheme that is compatible with the compression algorithm and at the same time, introduces as little perceptual distortion as possible. In this paper, we propose a novel compression-domain video data-hiding algorithm that determines the optimal embedding strategy to minimize both the output perceptual distortion and the output bit rate. The hidden data is embedded into selective Discrete Cosine Transform (DCT) coefficients which are found in most video compression standards. The coefficients are selected based on minimizing a cost function that combines both distortion and bit rate via a user-controlled weighting. Two methods are proposed - exhaustive search and fast Lagrangian approximation. While the former produces optimal results, the latter approach is significantly faster and amenable to real-time implementation.

Original languageEnglish
Title of host publication2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Number of pages4
StatePublished - 2008
Event2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008 - Seattle, WA, United States
Duration: May 18 2008May 21 2008

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310


Conference2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Country/TerritoryUnited States
CitySeattle, WA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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