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Static object detecting method and system

A static object and foreground technology, applied to TV system parts, color TV parts, TV, etc., can solve the problem of inaccurate detection of stationary objects, achieve the effect of reducing the number, simplifying the detection process, and reducing the update area

Active Publication Date: 2009-07-01
中星智能系统技术有限公司
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Problems solved by technology

[0006] The invention provides a method and system for detecting stationary objects to solve the problem of inaccurate detection of stationary objects in the prior art

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  • Static object detecting method and system
  • Static object detecting method and system

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Embodiment Construction

[0039] In order to solve the problem of inaccurate detection of stationary objects in the prior art, when matching the target foreground with the historical foreground in the embodiment of the present invention, the matching results are carefully classified, and corresponding processing is performed according to different results, which can be more accurate to detect stationary objects. Moreover, the embodiment of the present invention improves the process of obtaining the background image, the process of updating the background image, and the process of obtaining the target foreground, so as to detect the stationary object more accurately.

[0040] see figure 1 , the system for detecting stationary objects in this embodiment includes: a background image extraction device 101 , a background image updating device 102 , a static object detection device 103 and a central control device 104 .

[0041] The central control device 104 obtains the video data, and schedules the backgr...

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Abstract

The invention discloses a method for detecting a stationary object, which is used to solve the problem of inaccurate detection of the stationary object at present. The method is as follows: comparing each target foreground in the current image frame with each historical foreground; determining that there is an intersecting area of ​​a target foreground and a historical foreground with the ratio of the first area of ​​the target foreground and the first area of ​​the historical foreground When none of the second area ratios of the foreground is less than the preset first threshold, update the parameter value used to mark that the one historical foreground is matched; determine that the second area ratio is not less than the first threshold, the second When an area ratio is smaller than the first threshold and the intersecting area is the area of ​​the one historical foreground, and the first area ratio is not greater than the preset second threshold, the one target foreground is regarded as the historical foreground ; Determining the historical foreground corresponding to the matched parameter value reaching the third threshold as a stationary object. The invention also discloses a device and a system for detecting stationary objects.

Description

technical field [0001] The invention relates to the technical field of computers and electronics, in particular to a method and system for detecting stationary objects. Background technique [0002] At present, most public places are equipped with cameras to detect leftovers, or to monitor whether valuable objects are moved, or to monitor whether objects have been stagnant for a long time in sensitive areas. Based on the above uses, automatic detection of stationary objects has become an important research direction. [0003] The basic method of static object detection in the prior art is: first obtain the background image, then obtain the target foreground in the current image according to the current image and the background image, and then match the target foreground with the historical foreground. If they match, the historical foreground is considered Visible, otherwise delete the historical foreground, and use the target foreground as the historical foreground. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/14
Inventor 谢东海黄英邓亚峰王浩
Owner 中星智能系统技术有限公司
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