Tamper Detection for Active Surveillance Systems

Tsesmelis Theodore, Lars Christensen, Preben Fihl, Thomas B. Moeslund

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

11 Citations (Scopus)


If surveillance data are corrupted they are of no use to
neither manually post-investigation nor automatic video
analysis. It is therefore critical to automatically be able
to detect tampering events such as defocusing, occlusion
and displacement. In this work we for the first time ad-
dress this important problem for an active camera. We de-
tect these events by first comparing the incoming frames to
a background model using features relevant for the three
different tampering types. Individual detectors are then
developed capable of monitoring long video sequences and
indicating the occurrence of different tampering events.
In order to assess the developed methods we have collected
a large data set, which contains sequences from different
active cameras at different scenarios. We evaluate our sys-
tem on these data and the results are encouraging with a
very high detecting rate and relatively few false positives.
Original languageEnglish
Title of host publication2013 10th IEEE International Conference on Advanced Video and Signal-Based Surveillance (AVSS)
Number of pages6
PublisherIEEE Press
Publication date27 Aug 2013
ISBN (Print)978-1-4799-0703-8, 9781479907045
ISBN (Electronic)9781479907021
Publication statusPublished - 27 Aug 2013
EventAVSS 2013 - Kraków, Poland
Duration: 27 Aug 201330 Aug 2013


ConferenceAVSS 2013


  • tamper, surveillance, cameras, ptz cameras

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