Camera sabotage discovery for video surveillance applications [Video gözetleme uygulamalarinda kamera sabotaj sezimi]
2007 IEEE 15th Signal Processing and Communications Applications, SIU
MetadataShow full item record
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/27050
In the recent years, number of surveillance cameras deployed has increased significantly. However it is important that these cameras are functioning as intended and capturing meaningful data. Offenders resort to techniques such as blocking the camera view, using a foreign object to cover the lens, spray painting or de-focusing the camera lens to prevent capture of their images and recording of their actions. These cameras are often unattended or security guard might have lost his focus and if discovery of such an attempt is not immediate, even though there is no failure in the system and the images are still being recorded, these recordings are not useful. In this paper, we propose methods for real-time discovery of visibility loss and covered camera lens using background subtraction in wavelet domain. We also propose some methods to increase robustness of the system in real-life scenarios.
- Conference Paper 2294
Showing items related by title, author, creator and subject.
Aman, Aytek (Bilkent University, 2014)Augmented reality (AR) is the enhancement of real scenes with virtual entities. It is used to enhance user experience and interaction in various ways. Educational applications, architectural visualizations, military ...
Güdükbay, U.; Demir I.; Dedeoǧlu, Y. (2013)We propose a framework to reconstruct the 3D pose of a human for animation from a sequence of single-view video frames. The framework for pose construction starts with background estimation and the performer's silhouette ...
Pehlivan, S.; Duygulu P. (2011)We address the problem of recognizing actions from arbitrary views for a multi-camera system. We argue that poses are important for understanding human actions and the strength of the pose representation affects the overall ...