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Method used for identifying moving object on conveyor belt in video image

A technology of moving objects and video images, applied in image enhancement, image analysis, image data processing, etc., can solve the problems that infrared sensors cannot be identified in batches, and belt conveyor counters cannot be identified and calculated.

Inactive Publication Date: 2016-09-28
WUZHOU AUTOMATION TECH RES INST
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  • Description
  • Claims
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Problems solved by technology

If the detected target items are thin and large in number, when these target items are transferred in batches on the conveyor belt, the infrared sensor cannot identify them in batches, and the traditional belt conveyor counter will not be able to identify and count them.

Method used

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  • Method used for identifying moving object on conveyor belt in video image

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Embodiment Construction

[0020] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments, but this does not constitute any limitation to the present invention.

[0021] refer to figure 1 As shown, a method for video image recognition of moving objects on a conveyor belt of the present invention includes the following processing steps:

[0022] (1) Extract the image information of the first frame in the image queue from the image storage device, and obtain the closed contour image of the object after target contour recognition, and process the image information in the image queue frame by frame sequentially.

[0023] (2) Traverse the closed contour image of the object obtained in step (1), judge whether the edge contour path conforms to the object shape feature one by one, and store the edge contour path conforming to the object shape feature into the image block queue.

[0024] Wherein, the extracted edge contour path is used ...

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Abstract

The invention discloses a method used for identifying a moving object on a conveyor belt in a video image. The method is characterized by carrying out target outline identification and modeling processing on a previous frame of image information; setting a start point coordinate and an end point coordinate of a detection area and an allowable displacement deviation value; taking out edge outline paths one by one, acquiring a center point and determining whether to enter into the detection area, and taking an identification which is entered into the detection area as a monitoring point and storing to a monitoring point queue; using a displacement of center points of previous and following frames of images to confirm the edge outline path which needs to be calculated, and at an end terminal of the detection area, and when the edge outline path which needs to be calculated passes by, identifying the edge outline path to be the edge outline path which needs to be counted. By using the method used for identifying the moving object on the conveyor belt in the video image, the moving object on the conveyor belt in the video image can be rapidly and effectively identified so that the identified moving object is calculated and analyzed.

Description

technical field [0001] The present invention relates to a method for recognizing a moving object, more specifically, to a method for recognizing a moving object on a conveyor belt using a video image. Background technique [0002] The traditional belt conveyor counter is installed and fixed on both sides of the conveyor belt with infrared sensors. One end emits infrared rays and the other end receives the infrared signal. When the target item passes through the middle to the infrared rays, it will trigger the counter to count. According to the working principle of the above-mentioned counter, the target items to be detected and identified are usually relatively large, and they are transported in a single channel on the conveyor belt. Only when the target items pass through the infrared sensor one by one can they be identified and counted one by one. If the detected target items are thin and large in number, when these target items are transferred in batches on the conveyor b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20G06T7/60
CPCG06T2207/10016
Inventor 周杏樱徐智广李明轩蓝必铁黎云凤
Owner WUZHOU AUTOMATION TECH RES INST
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