A detection method for luggage casters in X-ray safety inspection equipment
A safety inspection and detection method technology, applied in the field of X-ray transmission imaging safety inspection, can solve problems such as false alarms and affecting equipment performance indicators, and achieve the effect of reducing false alarms and improving efficiency
Active Publication Date: 2017-03-29
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
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Problems solved by technology
In the process of the current X-ray security inspection equipment detecting explosives in the suitcase, some features of the suitcase itself, such as casters, have a non-negligible impact on the detection accuracy. Casters, as an important feature of the suitcase, have been found in practice to cause A large number of false alarms have obviously affected the performance indicators of the equipment
Method used
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Embodiment 1
[0037] Combined with the manual Figure 1-5 , specifically illustrate the present invention, the present invention provides a kind of detection method of luggage caster in X-ray security inspection equipment, comprises the following steps:
[0038] Step 1: Establish a "point of interest" detection model for the luggage caster axle;
[0039] Step 2: When the luggage enters the working area of the X-ray security inspection equipment, according to the position characteristics of the luggage casters, determine the "main area" of the luggage body as the overall search range, search in the area where the casters are likely to appear, and obtain the The "seed area" of the caster axle, which provides an initial search scope;
[0040] Step 3: Guided by the "seed area", adopt the method of "point of interest" detection to determine the area where the caster shaft is located;
[0041] Using the "point of interest" detection model of the caster shaft established in step 1, search for ...
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The invention relates to the technical field of X-ray transmission imaging security checking, in particular to a luggage castor detecting method in an X-ray security checking device, and provides a method for identifying luggage castors in an image of the X-ray security checking device. The image object identification technology is used for reference, and based on the characteristics of the castors in the aspects of specific materials, specific shapes, specific positions and the like, the identification method includes the steps that castor shafts are firstly found, and then the castors are judged. By means of the method, the positions and the ranges of the castors in the luggage image can be found, so that basic information is provided for luggage content analysis, fault alarms due to the fact that the castors are misjudged to be explosives are reduced, and the security checking efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of X-ray transmission imaging safety inspection, in particular to a method for detecting luggage casters in X-ray safety inspection equipment. Background technique [0002] Among the published documents on security inspection technology at home and abroad, there is no document directly related to the identification of luggage casters. Canada’s Optosecurity company has proposed a series of patents for identifying dangerous or disturbing objects in luggage, such as guns, grenades and notebooks. For example, its US patents 20120093367, 20130003135, and its Canadian patent CA02608124 do not directly mention the identification technology for casters, and do not focus on the characteristics of the luggage itself. Kong Weiwu and others from the First Research Institute of the Ministry of Public Security in China published the paper "Method for Removing Characteristic Areas of Dual-energy X-ray Suitcase Image" in th...
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IPC IPC(8): G06T5/00
Inventor 王宇石杨立瑞李保磊孔维武查艳丽
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY