A Method of Using X-ray Multi-view Image to Detect Dangerous Articles Concealed in Shoes
A technology for image detection and dangerous goods, applied in the field of X-ray digital imaging security inspection
Active Publication Date: 2017-09-15
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
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Problems solved by technology
To date, no automated detection method directly involving the concealment of dangerous goods in shoes has been reported
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[0045] The present invention will be further described below in conjunction with the drawings and embodiments.
[0046] The schematic diagram of the special inspection box involved in the embodiment is as figure 1 As shown, a plastic inspection box with a bottom size of 36cm*40cm is equipped with a foam pad at the bottom of the inspection box. Hollow shoe prints are made on the foam pad, and there is a gap between the two shoe prints. Place the two shoes side by side in the hollow shoe print of the inspection box, and use X-ray multi-view security inspection equipment to obtain multi-view images of the shoes.
[0047] A method for detecting dangerous goods hidden in shoes using X-ray multi-view images, such as figure 2 As shown, including the following steps:
[0048] S1. Determine the type of shoe to be inspected according to the multi-view image of the shoe
[0049] According to the structure of the shoes and the means of simulating the concealment of dangerous goods by criminals,...
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The invention relates to a method for detecting dangerous articles hidden in shoes by using X-ray multi-view images, the method comprising: using the multi-view images of the shoes to be inspected to determine the type of shoes to be inspected; looking for suspected dangerous articles according to the color component density detection model area; according to the geometric shape features, dynamic range of image grayscale and image material characteristics, the attributes of the suspected dangerous goods area are preliminarily judged; according to the texture feature classification model, the attributes of the suspected dangerous goods area with uncertain attributes after preliminary judgment are judged; using orthogonal In the angle-of-view electron density estimation method, attribute judgment is continued for suspected dangerous areas with uncertain attributes. By applying the method of the invention, it is possible to simply and quickly determine whether dangerous goods are hidden in the shoes, and to determine the hidden position and range of the dangerous goods. The invention can adapt to shoes of different sizes, shapes and materials, and can effectively detect whether it is a simple binding method or a hiding method of replacing the structure of the shoe itself.
Description
Technical field [0001] The invention relates to the technical field of X-ray digital imaging safety inspection, and in particular to a method for automatically detecting dangerous goods hidden in shoes by using X-ray multi-view images. Background technique [0002] At present, incidents of criminals concealing dangerous goods in baggage, clothing, and shoes often occur. For example, American Airlines discovered an attempt to detonate explosives hidden in shoes to create a terrorist incident, and Beijing Customs intercepted drug incidents hidden in shoes by criminals at the Capital Airport. These terrorist incidents have brought many factors of instability to the society, and made the automatic inspection of dangerous goods in public places particularly important. [0003] The literature on security inspection technology published at home and abroad is mostly related to the identification of dangerous goods in luggage. For example, the US patents US20120093367A1, US20130003135A1, a...
Claims
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IPC IPC(8): G01V5/00
Inventor 查艳丽杨立瑞王宇石孔维武
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY