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    Apparatus, method and system for screening receptacles and persons, having image distortion correction functionality
    2.
    发明申请
    Apparatus, method and system for screening receptacles and persons, having image distortion correction functionality 有权
    用于屏蔽插座和人员的装置，方法和系统，具有图像失真校正功能

    公开(公告)号：US20070041612A1

    公开(公告)日：2007-02-22

    申请号：US11431627

    申请日：2006-05-11

    Applicant: Luc Perron ,  Michel Bouchard ,  Chen Xu ,  Sebastien Roy ,  Alain Bergeron

    Inventor： Luc Perron ,  Michel Bouchard ,  Chen Xu ,  Sebastien Roy ,  Alain Bergeron

    IPC: G06K9/00 ,  G06K9/40

    CPC classification number: G06K9/746 ,  G06K9/28 ,  G06K9/3241 ,  G06K2209/09

    Abstract: An apparatus suitable for screening a receptacle. The apparatus comprises an input for receiving an image signal, the image signal conveying an input image related to contents of the receptacle, the image signal having been produced by a device that is characterized by introducing distortion into the input image. The apparatus also comprises a processing unit operative for: applying a distortion correction process to the image signal to remove at least part of the distortion from the input image, thereby to generate a corrected image signal conveying at least one corrected image; processing the corrected image signal in combination with a plurality of data elements associated with a plurality of target objects in an attempt to detect a presence of at least one of said target objects in the receptacle; and generating a detection signal in response to detection of the presence of at least one of said target objects in the receptacle.

    Abstract translation: 适用于筛选容器的装置。 所述装置包括用于接收图像信号的输入，所述图像信号传送与所述插座的内容相关的输入图像，所述图像信号已由特征在于将失真引入所述输入图像的设备产生。 该装置还包括处理单元，其操作用于：对图像信号应用失真校正处理，以从输入图像中去除至少一部分失真，从而产生传送至少一个校正图像的校正图像信号; 处理校正图像信号与多个与多个目标对象相关联的数据元素的组合，以试图检测存储器中至少一个所述目标对象的存在; 以及响应于所述容器中至少一个所述目标物体的存在的检测而产生检测信号。

    Method for matching a two dimensional image to one of a plurality of three dimensional candidate models contained in a database
    3.
    发明授权
    Method for matching a two dimensional image to one of a plurality of three dimensional candidate models contained in a database 有权
    将二维图像与包含在数据库中的多个三维候选模型中的一个进行匹配的方法

    公开(公告)号：US06956569B1

    公开(公告)日：2005-10-18

    申请号：US09538209

    申请日：2000-03-30

    Applicant: Sebastien Roy ,  Albert Peter Blicher

    Inventor： Sebastien Roy ,  Albert Peter Blicher

    IPC: G06T1/00 ,  G06K9/00 ,  G06K9/46 ,  G06K9/64 ,  G06T7/00 ,  G06T17/00

    CPC classification number: G06K9/4661 ,  G06K9/00208 ,  G06K9/00288 ,  G06K9/6212

    Abstract: A method for matching a two dimensional image to one of a plurality of three dimensional candidate models. The method including the steps of: determining the position and orientation of the two dimensional image; for each three dimensional model, computing a histogram-like table having a computed brightness coefficient for each surface normal of the model based on the corresponding value in the two dimensional image, each brightness coefficient depending only on the corresponding surface normal; and either successively rendering each three dimensional model in the determined position and orientation using the surface normals in conjunction with the corresponding computed brightness histogram-like table; and comparing the two dimensional image with each of the rendered three dimensional models or computing the variance of the brightness coefficients that are used to create each bucket of the histogram-like table, a bucket being a set of similar normal values that are lumped together to form a single argument value in the histogram-like table; computing the sum of the variances of the histogram-like table buckets; and ranking the three dimensional models using its computed sum as an error function, the ranking indicating the likelihood that the corresponding three dimensional model matches the two dimensional image. Also provided is a program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform the method steps of the present invention and a computer program product embodied in a computer-readable medium for carrying out the methods of the present invention.

    Abstract translation: 一种用于将二维图像与多个三维候选模型中的一个进行匹配的方法。 该方法包括以下步骤：确定二维图像的位置和取向; 对于每个三维模型，基于二维图像中的对应值计算具有模型的每个表面法线的计算亮度系数的直方图表，每个亮度系数仅取决于对应的表面法线; 并且使用表面法线结合相应的计算出的亮度直方图表来连续地将每个三维模型呈现在所确定的位置和方向上; 并且将二维图像与所渲染的三维模型中的每一个进行比较，或者计算用于创建直方图状表的每个桶的亮度系数的方差，桶是一组相似的正常值，其集中在一起 在直方图状表中形成单个参数值; 计算直方图样式桶的方差的总和; 并使用其计算的和作为误差函数对三维模型进行排序，排序指示相应的三维模型与二维图像匹配的可能性。 还提供了一种可由机器读取的程序存储设备，其有形地体现了可由机器执行的指令程序以执行本发明的方法步骤以及体现在计算机可读介质中的用于执行本发明的方法的计算机程序产品 发明。

    Maximum flow method for stereo correspondence
    6.
    发明授权
    Maximum flow method for stereo correspondence 失效
    立体声通信的最大流量法

    公开(公告)号：US6046763A

    公开(公告)日：2000-04-04

    申请号：US978834

    申请日：1997-11-26

    Applicant: Sebastien Roy

    Inventor： Sebastien Roy

    IPC: G06T1/00 ,  G06T7/00 ,  H04N13/00 ,  H04N13/02

    CPC classification number: G06T7/0075 ,  G06T2207/10012 ,  H04N13/0239 ,  H04N13/0242 ,  H04N2013/0081

    Abstract: A method for solving the stereo correspondence problem transforms the problem into a maximum-flow problem. Once solved, the minimum-cut associated to the maximum-flow results in a disparity surface for the entire image at once. This global approach to stereo analysis provides a more accurate and coherent depth map than the traditional line-by-line stereo method. Moreover, the optimality of the depth surface is guaranteed and can be shown to be a generalization of the dynamic programming approach that is widely used in standard stereo. Results show improved depth estimation as well as better handling of depth discontinuities. While the worst case running time is O(n.sup.3 d.sup.3), the observed average running time is O(n d.sup.1.4) for an image size of n pixels and depth resolution d.

    Abstract translation: 解决立体声对应问题的方法将问题转化为最大流问题。 一旦解决了，与最大流相关联的最小切割将立即导致整个图像的视差表面。 这种立体声分析的全球方法提供比传统的逐行立体声方法更准确和连贯的深度图。 此外，深度表面的最优性得到保证，并且可以被显示为广泛用于标准立体声的动态规划方法的泛化。 结果显示改进的深度估计以及更好地处理深度不连续性。 虽然最差运行时间为O（n3d3），但对于n像素的图像大小和深度分辨率d，观察到的平均运行时间为O（n d1.4）。

    Correction of camera motion between two image frames
    7.
    发明授权
    Correction of camera motion between two image frames 失效
    两幅图像帧之间相机运动的校正

    公开(公告)号：US5751838A

    公开(公告)日：1998-05-12

    申请号：US592249

    申请日：1996-01-26

    Applicant: Ingemar J. Cox ,  Sebastien Roy

    Inventor： Ingemar J. Cox ,  Sebastien Roy

    IPC: H04N5/232 ,  G06T1/00 ,  G06T3/60 ,  G06T7/20 ,  G06K9/36

    CPC classification number: G06K9/209 ,  G06T7/2033

    Abstract: A technique for determining the ego-motion between two frames of an image that includes estimating likely values of the translation and rotation and making a five-dimensional search over the space of likely translations and rotations and finding the global minimum at the current motion estimate by a sum of squared differences cost function.

    Abstract translation: 一种用于确定图像的两帧之间的自我运动的技术，其包括估计翻译和旋转的可能值并且在可能的翻译和旋转的空间上进行五维搜索，并且通过在当前运动估计上找到全局最小值 平方差的总和成本函数。

    METHOD AND DEVICES FOR ASSESSING THE THREAT STATUS OF AN ARTICLE AT A SECURITY CHECK POINT
    8.
    发明申请
    METHOD AND DEVICES FOR ASSESSING THE THREAT STATUS OF AN ARTICLE AT A SECURITY CHECK POINT 有权
    用于评估安全检查点的文章的威胁状态的方法和装置

    公开(公告)号：US20110007870A1

    公开(公告)日：2011-01-13

    申请号：US12680622

    申请日：2008-09-30

    Applicant: Michel Roux ,  Dan Gudmundson ,  Michel R. Bouchard ,  Vinh Phuc Pham ,  Alexandre Filiatrault ,  Sebastien Roy ,  Steve Godbout

    Inventor： Michel Roux ,  Dan Gudmundson ,  Michel R. Bouchard ,  Vinh Phuc Pham ,  Alexandre Filiatrault ,  Sebastien Roy ,  Steve Godbout

    IPC: G01N23/04 ,  H05G1/00

    CPC classification number: G01N23/04 ,  G01F23/288 ,  G01N2223/637 ,  G01N2223/639 ,  G01V5/0016

    Abstract: A method for performing security screening at a checkpoint is provided. The method includes providing an X-ray imaging system having a scanning area and providing a supporting device for supporting articles to be scanned in the scanning area, wherein the supporting device has at least two reference areas manifesting respective X-ray signatures when exposed to X-rays, the X-ray signatures being distinguishable from one another. The method further includes placing an article to be scanned on the supporting device, introducing the article to be scanned in the scanning area while the article is supported by the supporting device and using the X-ray imaging system for deriving the X-ray signatures of the reference areas and for obtaining an X-ray image of the article while the supporting device is in the scanning area. The method further includes using the X-ray signatures to derive X-ray attenuation information from the X-ray image and using the X-ray attenuation information in determining if the article is a security threat.

    Abstract translation: 提供了一种在检查点进行安全检查的方法。 该方法包括提供具有扫描区域的X射线成像系统，并提供用于在扫描区域中支撑要扫描的物品的支撑装置，其中，当暴露于X时，所述支撑装置具有表现出相应的X射线签名的至少两个参考区域 X射线签名可以彼此区分开来。 该方法还包括将待扫描的物品放置在支撑装置上，同时在由支撑装置支撑制品的同时将待扫描的物品引入扫描区域，并且使用X射线成像系统获得X射线签名 参考区域和用于在支撑装置处于扫描区域时获得物品的X射线图像。 该方法还包括使用X射线签名从X射线图像导出X射线衰减信息，并且在确定物品是否是安全威胁时使用X射线衰减信息。

    Dynamic power splitter
    9.
    发明申请
    Dynamic power splitter 审中-公开
    动态功率分配器

    公开(公告)号：US20080143455A1

    公开(公告)日：2008-06-19

    申请号：US11638567

    申请日：2006-12-14

    Applicant: Art Ross ,  George Feilders ,  Sebastien Roy ,  Jules Gauthier ,  Ramin Deban ,  Cevdet Akyel

    Inventor： Art Ross ,  George Feilders ,  Sebastien Roy ,  Jules Gauthier ,  Ramin Deban ,  Cevdet Akyel

    IPC: H01P1/12

    CPC classification number: H01P5/12

    Abstract: There is described a power splitter for directing electromagnetic power comprising: an input port for receiving the electromagnetic power; at least one dielectric element placed inside the power splitter; at least two output ports for outputting the power according to a splitting ratio, the at least two output ports placed on a surface opposite to the input port; and at least one dielectric moving device for positioning the at least one dielectric element between the at least two output ports to dynamically direct the power into the at least two output ports according to the power splitting ratio.

    Abstract translation: 描述了一种用于引导电磁功率的功率分配器，包括：用于接收电磁功率的输入端口; 放置在功率分配器内部的至少一个介质元件; 至少两个输出端口，用于根据分流比输出功率，所述至少两个输出端口放置在与输入端口相对的表面上; 以及至少一个介质移动装置，用于将所述至少一个介质元件定位在所述至少两个输出端口之间，以根据所述功率分配比动态地将功率引导到所述至少两个输出端口。

    Three dimensional vision device and method, and structured light bar-code patterns for use in the same
    10.
    发明授权
    Three dimensional vision device and method, and structured light bar-code patterns for use in the same 有权
    三维视觉设备和方法，以及结构化的光条码模式用于相同

    公开(公告)号：US06634552B2

    公开(公告)日：2003-10-21

    申请号：US09963162

    申请日：2001-09-26

    Applicant: Warren D. Smith ,  Sebastien Roy

    Inventor： Warren D. Smith ,  Sebastien Roy

    IPC: G06K710

    CPC classification number: G06K7/10722 ,  G06K19/06028

    Abstract: The present invention is a system and method for three dimensional machine vision including a projector and camera. The projector casts a structured light Quadratic Residue Bar Code on the surface to be mapped. The camera then images the surface. The projected image is shifted, and the process is repeated a number of times, according to the particular arrangement selected for the structured light Quadratic Residue Bar Code. The image data collected from this series of images is then processed by relatively simple matrix operations to determine the location of each camera pixel in three dimensional space.

    Abstract translation: 本发明是一种用于三维机器视觉的系统和方法，包括投影仪和照相机。 投影仪在要映射的表面上投射一个结构化的二次残留条形码。 相机然后对表面进行成像。 根据为结构光二次残留条形码选择的特定布置，投影图像被移位，并重复该过程多次。 然后通过相对简单的矩阵运算来处理从该系列图像收集的图像数据，以确定每个相机像素在三维空间中的位置。

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