Skip to Main content Skip to Navigation
Conference papers

ASePPI, an Adaptive Scrambling enabling Privacy Protection and Intelligibility in H.264/AVC

Abstract : —The usage of video surveillance systems increases more and more every year and protecting people privacy becomes a serious concern. In this paper, we present ASePPI, an Adaptive Scrambling enabling Privacy Protection and Intelligibility. It operates in the DCT domain within the H.264 standard. For each residual block of the luminance channel inside the region of interest, we encrypt the coefficients. Whereas encrypted coefficients appear as noise in the protected image, the DC value is dedicated to restore some of the original information. Thus, the proposed approach automatically adapts the level of protection according to the resolution of the region of interest. Comparing to existing methods, our framework provides better privacy protection with some flexibilities on the appearance of the protected version yielding better visibility of the scene for monitoring. Moreover, the impact on the source coding stream is negligible. Indeed, the results demonstrate a slight decrease in the quality of the reconstructed images and a small percentage of bits overhead.
Complete list of metadatas

Cited literature [15 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01588279
Contributor : Natacha Ruchaud <>
Submitted on : Friday, September 15, 2017 - 2:05:36 PM
Last modification on : Thursday, January 11, 2018 - 6:19:28 AM
Document(s) archivé(s) le : Saturday, December 16, 2017 - 12:29:22 PM

File

PID4859329.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01588279, version 1

Collections

Citation

Natacha Ruchaud, Jean-Luc Dugelay. ASePPI, an Adaptive Scrambling enabling Privacy Protection and Intelligibility in H.264/AVC. GRETSI, Sep 2017, Juans les pins, France. ⟨hal-01588279⟩

Share

Metrics

Record views

85

Files downloads

235