Disclosed herein are a system and method for detecting tampering of a first camera in a camera network system, wherein the first camera is adapted to capture a portion of a scene in a field of view of the first camera. The method detects an occlusion of the scene in the field of view of the first camera and changes a field of view of a second camera to overlap with the field of view of the first camera. The method determines a difference between an image captured by the second camera of the changed field of view and a set of reference images relating to the field of view of the first camera. The method then detects tampering of the first camera based on the difference exceeding a predefined threshold.

Title
Fault tolerant background modelling
Application Number
13/455714
Publication Number
20120274776
Application Date
April 25, 2012
Publication Date
November 1, 2012
Inventor
Veena Murthy Srinivasa Dodballapur
Jeroen Vendrig
Xin Yu Liu
Amit Kumar Gupta
Assignee
Canon Kabushiki Kaisha
IPC
H04N 07/18
G06K 09/62
H04N 17/00
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