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    • 33. 发明授权
    • Method and apparatus for substance identification
    • 物质识别方法和装置
    • US08290230B2
    • 2012-10-16
    • US12270908
    • 2008-11-14
    • Zhiqiang ChenLi ZhangKejun KangXuewu WangQingping HuangYuanjing LiYinong LiuZiran ZhaoYongshun Xiao
    • Zhiqiang ChenLi ZhangKejun KangXuewu WangQingping HuangYuanjing LiYinong LiuZiran ZhaoYongshun Xiao
    • G06K9/00
    • G01N23/04G01N23/087G01N2223/423
    • A method for substance identification and an apparatus thereof are disclosed. The method comprises comprising steps of: transmitting an object under inspection using high-energy rays and low-energy rays, so as to obtain a high-energy transmission image and a low-energy transmission image for the object, wherein a value of each pixel in the high-energy image indicates a high-energy transparency of the high-energy rays with respect to corresponding parts of the object, and a value of each pixel in the low-energy image indicates a low-energy transparency of the low-energy rays with respect to corresponding parts of the object; calculating a value of a first function for the high-energy transparency and a value of a second function for the high-energy transparency and the low-energy transparency, for each pixel; and classifying locations determined by the value of the first function and the value of the second function using a pre-created classification curve, so as to identify the type of the substance of a part of the object corresponding to each pixel. With the present invention, it is possible to not only obtain a transmission image of the object, but also obtain material information in the object.
    • 公开了一种物质识别方法及其装置。 该方法包括以下步骤:使用高能射线和低能射线发射被检查物体,以获得该物体的高能透射图像和低能透射图像,其中每个像素的值 在高能量图像中表示高能量射线相对于物体的相应部分的高能量透明度,并且低能量图像中的每个像素的值表示低能量透射度的低能量 相对于物体的相应部分的射线; 对于每个像素,计算用于高能量透明度的第一函数的值和用于高能量透明度和低能量透明度的第二函数的值; 以及使用预先创建的分类曲线对由第一函数的值和第二函数的值确定的位置进行分类,以便识别与每个像素对应的对象的一部分的实体的类型。 利用本发明,不仅可以获得对象的发送图像,而且可以获得对象中的素材信息。
    • 35. 发明申请
    • Method and apparatus for liquid safety-detection by backscatter with a radiation source
    • 用辐射源通过后向散射进行液体安全检测的方法和装置
    • US20060133566A1
    • 2006-06-22
    • US11285395
    • 2005-11-23
    • Yulan LiHaifeng HuYinong LiuZhiqiang ChenKejun KangLi ZhangWanlong WuYuanjing LiYi WangWenjun HeMingrui Qi
    • Yulan LiHaifeng HuYinong LiuZhiqiang ChenKejun KangLi ZhangWanlong WuYuanjing LiYi WangWenjun HeMingrui Qi
    • G01N23/04
    • G01N23/20066G01N23/203G01N2223/637G01V5/0025
    • A method and an apparatus for liquid safety-detection by backscatter with a radiation source relate to a radiation detecting technology field. The invention comprises using a radiation source, a collimator, a detector, a data collector and a computer data processor, and has the main steps of: 1) a liquid article to be detected being placed onto a rotatable platform; 2) the ray emitted from the radiation source causing Compton scattering at the surface of the liquid after passing through the package layer of the liquid article; 3) the scattering photons being received by the detector after passing the collimator; 4) the detector transmitting the received data to the data collector; and 5) the data collector transmitting the amplified and shaped data to the computer data processor, which processes the data to obtain the liquid density of the detected article, then compares the result with the densities of dangerous articles in a current database, and gives warning if finding that the density of the detected article is consistent with that of a dangerous article. Comparing to the prior art, the invention has a convenient use, a rapid and accurate detection, a strong anti-interference, a high use safety and reliability, and an easy protection.
    • 用于通过具有辐射源的后向散射进行液体安全检测的方法和装置涉及辐射检测技术领域。 本发明包括使用辐射源,准直仪,检测器,数据采集器和计算机数据处理器,并且具有以下主要步骤:1)待检测的液体物品被放置在可旋转平台上; 2)从辐射源发出的射线,在液体物品的包装层穿过液体表面后会引起康普顿散射; 3)散射光子在通过准直仪之后被检测器接收; 4)检测器将接收的数据发送到数据采集器; 5)数据收集器将放大和成形数据发送到计算机数据处理器,处理数据以获得检测到的物品的液体密度,然后将结果与当前数据库中的危险物品的密度进行比较,并给出警告 如果发现检测到的物品的密度与危险物品的密度一致。 与现有技术相比,本发明方便使用,检测快速准确,抗干扰性强,使用安全可靠,易于保护。
    • 36. 发明申请
    • METHOD AND APPARATUS FOR SUBSTANCE IDENTIFICATION
    • 物质识别的方法和装置
    • US20090129544A1
    • 2009-05-21
    • US12270908
    • 2008-11-14
    • Zhiqiang ChenLi ZhangKejun KangXuewu WangQingping HuangYuanjing LiYinong LiuZiran ZhaoYongshun Xiao
    • Zhiqiang ChenLi ZhangKejun KangXuewu WangQingping HuangYuanjing LiYinong LiuZiran ZhaoYongshun Xiao
    • G01N23/04
    • G01N23/04G01N23/087G01N2223/423
    • A method for substance identification and an apparatus thereof are disclosed. The method comprises comprising steps of: transmitting an object under inspection using high-energy rays and low-energy rays, so as to obtain a high-energy transmission image and a low-energy transmission image for the object, wherein a value of each pixel in the high-energy image indicates a high-energy transparency of the high-energy rays with respect to corresponding parts of the object, and a value of each pixel in the low-energy image indicates a low-energy transparency of the low-energy rays with respect to corresponding parts of the object; calculating a value of a first function for the high-energy transparency and a value of a second function for the high-energy transparency and the low-energy transparency, for each pixel; and classifying locations determined by the value of the first function and the value of the second function using a pre-created classification curve, so as to identify the type of the substance of a part of the object corresponding to each pixel. With the present invention, it is possible to not only obtain a transmission image of the object, but also obtain material information in the object.
    • 公开了一种物质识别方法及其装置。 该方法包括以下步骤:使用高能射线和低能射线发射被检查物体,以获得该物体的高能透射图像和低能透射图像,其中每个像素的值 在高能量图像中表示高能量射线相对于物体的相应部分的高能量透明度,并且低能量图像中的每个像素的值表示低能量透射度的低能量 相对于物体的相应部分的射线; 对于每个像素,计算用于高能量透明度的第一函数的值和用于高能量透明度和低能量透明度的第二函数的值; 以及使用预先创建的分类曲线对由第一函数的值和第二函数的值确定的位置进行分类,以便识别与每个像素对应的对象的一部分的实体的类型。 利用本发明,不仅可以获得对象的发送图像,而且可以获得对象中的素材信息。
    • 38. 发明申请
    • Method and device for inspection of drugs concealed in liquid articles
    • 用于检查液体物品中隐藏的药物的方法和装置
    • US20090006019A1
    • 2009-01-01
    • US12078981
    • 2008-04-09
    • Kejun KangZhiqiang ChenHaifeng HuYuanjing LiLi ZhangYinong LiuXuewu WangLijun QiuHong Zhang
    • Kejun KangZhiqiang ChenHaifeng HuYuanjing LiLi ZhangYinong LiuXuewu WangLijun QiuHong Zhang
    • G01N37/00
    • G01N23/046G01N2223/419
    • Disclosed are a method and a device for inspection of drugs concealed in liquid articles without opening the outer packages. The method comprises the steps of: emitting radiation beams to transmit through the liquid article; receiving the radiation beams transmitted through the liquid article to get multi-angle projection data; inversely operating the multi-angle projection data based on the uniformity of the liquid article to obtain an attribute value of the inspected liquid article; retrieving a reference attribute value in a pre-created database by using the identification information of the liquid article as an index, and calculating a difference between the calculated attribute value and the reference attribute value; and determining whether the difference is larger than a predefined threshold value; wherein it is concluded that there are drugs concealed in the liquid article when the difference is determined to be larger than the predefined threshold value.
    • 公开了一种用于检查隐藏在液体制品中的药物的方法和装置,而不打开外包装。 该方法包括以下步骤:发射辐射束以透过液体制品; 接收透过液体物品的辐射束,得到多角度投影数据; 基于液体制品的均匀性反向操作多角度投影数据,以获得被检液体的属性值; 通过使用液体物品的识别信息作为索引,在预先创建的数据库中检索参考属性值,以及计算所计算的属性值和参考属性值之间的差; 以及确定所述差异是否大于预定阈值; 其中,当确定差异大于预定阈值时,可以认为在液体制品中存在隐藏的药物。
    • 40. 发明授权
    • Method and apparatus for liquid safety-detection by backscatter with a radiation source
    • 用辐射源通过后向散射进行液体安全检测的方法和装置
    • US07400706B2
    • 2008-07-15
    • US11285395
    • 2005-11-23
    • Yulan LiHaifeng HuYinong LiuZhiqiang ChenKejun KangLi ZhangWanlong WuYuanjing LiYi WangWenjun HeMingrui Qi
    • Yulan LiHaifeng HuYinong LiuZhiqiang ChenKejun KangLi ZhangWanlong WuYuanjing LiYi WangWenjun HeMingrui Qi
    • G01N23/203
    • G01N23/20066G01N23/203G01N2223/637G01V5/0025
    • A method and an apparatus for liquid safety-detection by backscattering with a radiation source are provided that relate to a radiation detecting technology field. The invention comprises using a radiation source, a collimator, a detector, a data collector and a computer data processor, and has the main steps of: 1) placing a liquid article to be detected onto a rotatable platform; 2) emitting a ray from the radiation source, said ray causing Compton scattering at the surface of the liquid after passing through the package layer of the liquid article; 3) the scattering photons being received by the detector after passing the collimator; 4) the detector transmitting the received data to the data collector; and 5) the data collector transmitting the amplified and shaped data to the computer data processor, which processes the data to obtain the liquid density of the detected article, then compares the result with the densities of dangerous articles in a current database, and gives a warning if the density of the detected article is consistent with that of a dangerous article. Compared to the prior art, the invention is convenient to use, detects rapidly and accurately, has a strong anti-interference, is very safe and reliable to use, and protection is easy.
    • 提供了一种与放射线检测技术领域相关的用于利用辐射源的后向散射进行液体安全检测的方法和装置。 本发明包括使用辐射源,准直仪,检测器,数据采集器和计算机数据处理器,并且具有以下主要步骤:1)将要检测的液体物品放置在可旋转平台上; 2)从辐射源发射光线,所述光线在通过液体物品的包装层之后在液体表面引起康普顿散射; 3)散射光子在通过准直仪之后被检测器接收; 4)检测器将接收的数据发送到数据采集器; 5)数据收集器将放大和成形的数据传送到计算机数据处理器,处理数据以获得检测到的物品的液体密度,然后将结果与当前数据库中危险物品的密度进行比较,并给出 如果检测到的物品的密度与危险物品的密度一致,则警告。 与现有技术相比,本发明使用方便,检测快速准确,抗干扰性强,使用安全可靠,保护容易。