Bottle detection method and device

A detection method and bottle technology, applied in image data processing, instruments, character and pattern recognition, etc., can solve the problems of efficient detection of liquids, improvement of staff work intensity, missed detection, etc.

Active Publication Date: 2017-04-12
NUCTECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This method cannot efficiently detect the liquid in the package. At the same time, due to the overlapping of background objects in the security inspection image, it will make it

Method used

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  • Bottle detection method and device
  • Bottle detection method and device

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Embodiment Construction

[0071] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0072] In the present invention, the detection of suspicious bottle regions is used to detect possible liquid regions. The flowchart of an embodiment of the bottle detection method is as figure 1 shown.

[0073] In step 101, an edge image is extracted by using an edge detection algorithm according to the acquired scanned image. Edge images can be extracted using edge detection algorithms such as canny operator, sobel operator or LoG operator. Such as figure 2 As shown, after the scanned image on the left is processed by the edge detection algorithm, the edge image on the right is obtained.

[0074] In step 102, since the bottle has a strong axis symmetry, the axis symmetry of the bottle is used to extract edge points symmetrical to the axis of symmetry of the scanning window from the edge image, thereby determinin...

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Abstract

The invention proposes a bottle detection method and device, and relates to the field of safety. The method comprises the steps: obtaining an edge image according to a scanning image; determining a to-be-selected bottle region based on an edge image through the statistics of edge points, which are symmetric relative to a symmetric axis of a scanning window, in the scanning window according to the symmetry of a bottle; and selecting a bottle region from the to-be-selected bottle region. According to the method, the bottle region can be recognized and screened through the edge recognition of the scanning image according to the characteristics of the bottle region, a suspected liquid region in the scanning image can be automatically obtaiend, and the efficiency of safety inspection is improved.

Description

technical field [0001] The invention relates to the field of security inspection, in particular to a bottle inspection method and device. Background technique [0002] At present, in the civil aviation security inspection operation specification, liquids of more than 100 milliliters are prohibited from being carried. During the subway security check process, a separate check is also required for the liquids carried by passengers. [0003] In public places such as subways and airports, it is often encountered that passengers carry packages containing liquids through security checkpoints. In the prior art, it is often necessary to identify liquids by passengers' self-awareness and security personnel visually observing security images. This method cannot efficiently detect the liquid in the package. At the same time, due to the overlapping of background objects in the security inspection image, it will make it difficult to identify with the naked eye, which will increase the ...

Claims

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Application Information

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IPC IPC(8): G06K9/46G06T7/13
CPCG06V10/44G06V2201/05G06V2201/07
Inventor 廖育华王强刘晶晶张阳天彭华李元景
Owner NUCTECH CO LTD
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