SecureCam: Selective Detection and Encryption Enabled Application for Dynamic Camera Surveillance Videos

Ifeoluwapo Aribilola, Mamoona Naveed Asghar, Nadia Kanwal, Martin Fleury, Brian Lee

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Using dynamic surveillance cameras for security has significantly increased the privacy concerns for captured individuals. Malicious users may misuse these videos by performing Replay and/or Man-in-the-Middle attacks during storage or recording over the network. Considering these risks, this paper proposes an effective security application SecureCam based on selective detection (focused moving objects) and protection using encryption. For object detection, this paper implements a novel low computational unsupervised learning algorithm, i.e., Motion-Fusion (MF) for more precise motion detection in the mobile camera videos. After that, selective encryption (SE) is applied by the lightweight Chacha20 cipher to the detected video parts. Proposed SecureCam is extensively evaluated based on performance analysis, security analysis and computational complexity. For object detection, the comparative evaluation shows that the MF algorithm outperforms traditional state-of-the-art dense optical flow (DOF) algorithm with an average (mean) difference increase: in the accuracy of 54%; and in the precision of 42% making it computationally effective for such videos. The visual results with 21% encryption space ratio (ESR) indicate that the videos are sufficiently protected against identification. Overall comparative evaluation with existing approaches also affirm the significance and utility of proposed SecureCam for Internet of Multimedia Things (IoMT) environment.

Original languageEnglish
Pages (from-to)156-169
Number of pages14
JournalIEEE Transactions on Consumer Electronics
Volume69
Issue number2
DOIs
Publication statusPublished - 1 May 2023

Keywords

  • Chacha20
  • Internet of Multimedia Things (IoMT)
  • Manin-the-middle attack
  • Region-of-interest (ROI)
  • dense optical flow (DOF)
  • encryption space ratio (ESR)
  • replay attack
  • structural similarity index (SSIM)

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