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    • 4. 发明申请
    • METHOD AND DEVICE FOR DETECTING A GIVEN MATERIAL IN AN OBJECT USING ELECTROMAGNETIC RAYS
    • 方法和装置检测到特定材料的物体被电磁辐射的方式
    • WO03031960A2
    • 2003-04-17
    • PCT/EP0210629
    • 2002-09-21
    • HEIMANN SYSTEMS GMBH & COBENEKE KNUTNITTIKOWSKI JOERGNAUMANN DIRKRIES HERMANNSIEDENBURG UWEMEDER CLAUSULLRICH STEFAN
    • BENEKE KNUTNITTIKOWSKI JOERGNAUMANN DIRKRIES HERMANNSIEDENBURG UWEMEDER CLAUSULLRICH STEFAN
    • G01V5/00G01N27/00
    • G01V5/0016
    • The invention relates to a method for detecting a given material in an object (1), especially in a piece of luggage, using electromagnetic rays, wherein the intensities of the non-absorbed rays from at least three ray planes (5.1 - 5.2) are measured and evaluated in assigned detector arrays (4.1 - 4.5). According to the invention, the following method steps are carried out: 1) preparing an at least two-dimensional image of the object (1) from the measured intensity values; 2) selecting a spatial area shown on the image based on the values of a material variable which is determined from intensity measurements for checking purposes; 3) determining at least one spatially geometric variable in the area to be checked from the position data of a second two-dimensional image and intensity values using a stored value of a specific variable of a presumed object influencing absorption; 4) additionally determining the corresponding spatially geometric variable alone from three-dimensional geometric values detected from measured intensity values; 5) directly or indirectly comparing the values determined in steps 3) and 4) of the spatially geometric variable or from values of a variable derived therefrom in order to determine the actual presence of the presumed material.
    • 在一件行李中的物体(1)检测特定的材料,特别地,通过电磁辐射的装置的方法,其中由至少三个光束的平面(5.1 - 5.2) - 未被吸收的辐射的强度来测量和相关联的检测器安排(4.5 4.1) 进行评估,根据本发明包括下列步骤进行:1.创建对象(1)从所测量的Intensitatswerten,2.选择的基础上的材料尺寸的值被成像在图像空间域,从至少一个二维图像 强度测量被确定为检查,3.在区域确定至少一个空间几何值从一个二维图像的和强度值的位置数据检测使用怀疑材料的特定吸收影响的值的存储值 秒; 4。 从测量的强度值来确定单独的三维几何值的空间上对应的几何尺寸的附加确定,5直接或间接地比较在或由其衍生的一个变量的值的步骤3和空间几何尺寸的4值确定 确定可疑材料是否实际存在。