IMAGE SURVEILLANCE SYSTEM AND METHOD OF DETECTING WHETHER OBJECT IS LEFT BEHIND OR TAKEN AWAY
First Claim
1. An image surveillance system comprising:
- a foreground detecting unit which detects a foreground region based on a difference between pixel information about a background image and pixel information about a current input image;
a still region detecting unit which detects a candidate still region by clustering foreground pixels of the foreground region, and determines whether the candidate still region is a falsely detected still region or a true still region; and
an object detecting unit which determines whether an object is left behind or taken away, based on edge information about the true still region.
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Abstract
An image surveillance system and a method of detecting whether an object is left behind or taken away are provided. The image surveillance system includes: a foreground detecting unit which detects a foreground region based on a pixel information difference between a background image and a current input image; a still region detecting unit which detects a candidate still region by clustering foreground pixels of the foreground region, and determines whether the candidate still region is a falsely detected still region or a true still region; and an object detecting unit which determines whether an object is left behind or taken away, based on edge information about the true still region.
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Citations
20 Claims
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1. An image surveillance system comprising:
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a foreground detecting unit which detects a foreground region based on a difference between pixel information about a background image and pixel information about a current input image; a still region detecting unit which detects a candidate still region by clustering foreground pixels of the foreground region, and determines whether the candidate still region is a falsely detected still region or a true still region; and an object detecting unit which determines whether an object is left behind or taken away, based on edge information about the true still region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An image surveillance system comprising:
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a foreground detecting unit which detects a plurality of foreground regions based on difference between pixel information about a background image and pixel information about a current input image; a still region detecting unit which detects a plurality of candidate still regions from among the plurality of foreground regions, and selects a true still region by removing a falsely detected still region, from among the plurality of candidate still regions; and an object detecting unit which determines whether an object corresponding to the true still region is an object which is left behind or taken away, based on edge information about the true still region. - View Dependent Claims (12, 13)
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14. A method of detecting whether an object is left behind or taken away using an image surveillance system, the method comprising:
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detecting a foreground region based on difference between pixel information about a background image and pixel information about a current input image; detecting a candidate still region by clustering foreground pixels of the foreground region, and determining whether the candidate still region is a falsely detected still region or a true still region; and determining whether an object is left behind or taken away, based on edge information about the true still region. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification