Enabling privacy for distributed video coding by transform domain scrambling

Mourad Ouaret; Frederic Dufaux; Touradj Ebrahimi

doi:10.1117/12.767175

28 January 2008 Enabling privacy for distributed video coding by transform domain scrambling

Mourad Ouaret, Frederic Dufaux, Touradj Ebrahimi

Proceedings Volume 6822, Visual Communications and Image Processing 2008; 68222E (2008) https://doi.org/10.1117/12.767175
Event: Electronic Imaging, 2008, San Jose, California, United States

Abstract

In this paper, a novel video scrambling scheme is introduced for Distributed Video Coding. The goal is to conceal video information to preserve privacy in several applications such as video surveillance and anonymous video communications. This is achieved by performing a transform domain scrambling on both Key and Wyner-Ziv frames. More specifically, the sign of the scrambled transform coefficient is inverted at the encoder side. The scrambling pattern is defined by a secret key and the latter is required at the decoder for descrambling. The scheme is proven to provide a good level of security in addition to a flexible scrambling level (i.e the amount of distortion introduced). Finally, it is shown that the original DVC scheme and the one with scrambling have a similar rate distortion performance. In other words, the DVC compression efficiency is not negatively impacted by the introduction of the scrambling.

Citation Download Citation

Mourad Ouaret, Frederic Dufaux, and Touradj Ebrahimi "Enabling privacy for distributed video coding by transform domain scrambling", Proc. SPIE 6822, Visual Communications and Image Processing 2008, 68222E (28 January 2008); https://doi.org/10.1117/12.767175

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available