Method for detecting objects left-behind in a scene

Details Method for detecting objects left-behind in a scene Method for detecting objects left-behind in a scene

2007-04-05

2010-10-12

Bali, Vikkram (Department: 2624)

Image analysis

Applications

Target tracking or detecting

C382S190000, C348S155000

Reexamination Certificate

active

07813528

ABSTRACT:
A method detects an object left-behind in a scene by updating a set of background models using a sequence of images acquired of the scene by a camera. Each background model is updated at a different temporal scales ranging from short term to long term. A foreground mask is determined from each background model after the updating for a particular image of the sequence. A motion image is updated from the set of foreground masks. In the motion, image, each pixel has an associated evidence value. The evidence values are compared with a evidence threshold to detect and signal an object left behind in the scene.

REFERENCES:
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