Movement detecting method

A motion detection and motion information technology, applied in CCTV systems and other directions, can solve problems such as unfavorable detection of abnormal behavior, misjudgment of monitoring system, and impact on the accuracy of system motion detection, so as to reduce the possibility of false alarms and false alarms. The effect of improving accuracy and reliability

Active Publication Date: 2006-02-08
BEIJING VIMICRO ARTIFICIAL INTELLIGENCE CHIP TECH CO LTD
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Problems solved by technology

Generally speaking, the monitoring area of ​​the camera is not necessarily the area of ​​interest. If there are moving objects in the non-interest area, for example, tree branches swinging with the wind, it may also cause

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Embodiment Construction

[0027] Generally speaking, the motion detection method of the present invention divides the entire monitoring area into multiple sub-areas, and sets a corresponding threshold and weight for each sub-area according to the sensitivity of each sub-area. Specifically, the higher the sensitivity For high sub-regions, set smaller thresholds and larger weights. For sub-regions with lower sensitivity, set larger thresholds and smaller weights to comprehensively judge the entire monitoring area. Whether there is movement, which can effectively reduce the possibility of false alarms and false alarms of the monitoring system, and improve the accuracy and reliability of the motion detection of the monitoring system.

[0028] the following figure 1 The motion detection method of the present invention will be described in detail.

[0029] Step 1: Determine the reference frame image and determine the current frame image.

[0030] Just like a reference object in physical motion analysis, a refer...

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Abstract

The invention discloses a movement detecting method, comprising the steps as follow: the first step, the picture of a reference frame is determined and the pictures of a current frame is determined; the second step, a monitoring area is divided into a plurality of sub-areas, and the corresponding valve value and the weight are respectively set for each monitoring sub-area according to the sensitivity of each monitoring sub-area; the third step, the movement information of the current frame and the reference frame inside each sub-area are acquired; and the fourth step, the movement detection inside the whole monitoring area is determined according to the movement detecting result of each sub-area, the weight of each sub-area and the valve value of the whole monitoring area. As the invention is added with the weight information, all the sub-areas are combined organically, thereby ensuring the movement detecting result of the whole monitoring area more accurate and reliable.

Description

Technical field [0001] The invention relates to the field of digital image processing, in particular to a motion detection method. technical background [0002] For the safety of people's production and life, automatic monitoring systems have been widely used to automatically monitor areas set by users. A general monitoring system includes an image capture unit, an image processing unit, and a display unit. Specifically, the image capture unit is usually a camera, which is used to capture image capture in a set area, and the image processing unit may be an image processing chip, which processes the image data captured by the camera. The display unit may be a display, which is used to display the image processed by the image processing chip, so as to achieve the purpose of monitoring. Generally, the surveillance system may also include an image storage area for storing image data of the surveillance area, so as to facilitate people's inspection. In many cases, there will be no mov...

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Application Information

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IPC IPC(8): H04N7/18
Inventor 吴大斌
Owner BEIJING VIMICRO ARTIFICIAL INTELLIGENCE CHIP TECH CO LTD
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