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    Insertion of binary messages in video pictures
    1.
    发明授权
    Insertion of binary messages in video pictures 有权
    在视频图片中插入二进制消息

    公开(公告)号：US07319754B2

    公开(公告)日：2008-01-15

    申请号：US10606600

    申请日：2003-06-26

    Applicant: Guillaume Petitjean

    Inventor： Guillaume Petitjean

    IPC: H04K1/00

    CPC classification number: G06T1/0085 ,  G06T2201/0053 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/467 ,  H04N19/61

    Abstract: A method and a circuit for marking with a binary code a video sequence compressed by motion calculation, from one picture to another, of macroblocks dividing each picture, the digital pictures being distributed in at least two categories according to whether they are coded integrally or by the motion vectors of the macroblocks with respect to the previous picture or to the previous and next pictures, which includes, at least for the pictures coded by motion vectors, only marking the macroblocks for which the motion vectors are greater than a predetermined threshold.

    Abstract translation: 一种二进制编码方法和电路，用于通过运动计算压缩的视频序列，从一个图像到另一个用于划分每个图像的宏块，所述数字图像根据它们是整体编码还是由 宏块相对于先前图像或上一个和下一个图像的运动矢量，其至少包括对运动矢量编码的图像，仅标记运动矢量大于预定阈值的宏块。

    Method and device for locating a human iris in an eye image
    2.
    发明授权
    Method and device for locating a human iris in an eye image 有权
    用于在眼睛图像中定位人体虹膜的方法和装置

    公开(公告)号：US08325996B2

    公开(公告)日：2012-12-04

    申请号：US12150352

    申请日：2008-04-24

    Applicant: Lionel Martin ,  Guillaume Petitjean ,  Stéphane Derrode ,  William Ketchantang

    Inventor： Lionel Martin ,  Guillaume Petitjean ,  Stéphane Derrode ,  William Ketchantang

    IPC: G06K9/00

    CPC classification number: G06K9/0061

    Abstract: The present disclosure relates to a method for locating the iris in an image of an eye, comprising steps of locating the pupil in the image, of detecting positions of intensity steps of pixels located on a line passing through the pupil and transition zones between the iris and the cornea, on either side of the pupil, and of determining the center and the radius of a circle passing through the detected positions of the transitions.

    Abstract translation: 本公开涉及一种用于将虹膜定位在眼睛图像中的方法，包括以下步骤：将瞳孔定位在图像中，检测位于通过瞳孔的线上的像素的强度级的位置和虹膜之间的过渡区域 以及在瞳孔两侧的角膜，以及确定通过检测到的转变位置的圆的中心和半径。

    Evaluation of the definition of an eye iris image
    4.
    发明授权
    Evaluation of the definition of an eye iris image 有权
    评估眼睛虹膜图像的定义

    公开(公告)号：US07382902B2

    公开(公告)日：2008-06-03

    申请号：US10717804

    申请日：2003-11-20

    Applicant: Christel-Loïc Tisse ,  Laurent Plaza ,  Guillaume Petitjean

    Inventor： Christel-Loïc Tisse ,  Laurent Plaza ,  Guillaume Petitjean

    IPC: G06K9/00

    CPC classification number: G06K9/00597 ,  G06T7/70 ,  G06T2207/20132 ,  G06T2207/30201

    Abstract: A method and a system for evaluating the definition of the image of an eye iris or the like, including approximately localizing the pupil in the image, defining, from the approximate position of the pupil, an examination window centered on this position, and applying a gradient accumulation operation to the luminance values of the pixels of the examination window, the running total being proportional to the definition score of the image.

    Abstract translation: 一种用于评估眼睛虹膜等的图像的定义的方法和系统，包括大致定位图像中的瞳孔，从瞳孔的大致位置定义以该位置为中心的检查窗口，并且应用 对检查窗口的像素的亮度值进行梯度累积运算，运行总计与图像的定义分数成比例。

    Digital processing of an iris image
    5.
    发明申请
    Digital processing of an iris image 审中-公开
    虹膜图像的数字处理

    公开(公告)号：US20070047773A1

    公开(公告)日：2007-03-01

    申请号：US11512906

    申请日：2006-08-30

    Applicant: Lionel Martin ,  Guillaume Petitjean ,  William Ketchantang

    Inventor： Lionel Martin ,  Guillaume Petitjean ,  William Ketchantang

    IPC: G06K9/00

    CPC classification number: G06K9/0061 ,  G06T5/008 ,  G06T5/40 ,  G06T2207/20012 ,  G06T2207/20032 ,  G06T2207/30041

    Abstract: A method of digital processing of an image of the iris of an eye or the like, including at least a first filtering step corresponding to a morphological closing by a first structuring element corresponding to a disk having a radius in number of pixels approximately corresponding to the thickness of an eyelash in the image, and a second filtering step corresponding to a morphological opening of the image resulting from the previous step by a second structuring element corresponding to a disk having a radius in number of pixels ranging between two and five times that of the disk of the first step.

    Abstract translation: 一种对眼睛的虹膜的图像进行数字处理的方法，包括至少第一滤波步骤，该第一滤波步骤对应于第一结构元件的形态闭合，第一结构元件对应于具有大约对应于 图像中的睫毛的厚度，以及对应于由前一步骤产生的图像的形态打开的第二过滤步骤，所述第二结构元件对应于具有范围在两倍到五倍之间的像素的半径的圆盘的第二结构元件 第一步的磁盘。

    Method and device for locating a human iris in an eye image
    7.
    发明申请
    Method and device for locating a human iris in an eye image 有权
    用于在眼睛图像中定位人体虹膜的方法和装置

    公开(公告)号：US20080273763A1

    公开(公告)日：2008-11-06

    申请号：US12150352

    申请日：2008-04-24

    Applicant: Lionel Martin ,  Guillaume Petitjean ,  Stephane Derrode ,  William Ketchantang

    Inventor： Lionel Martin ,  Guillaume Petitjean ,  Stephane Derrode ,  William Ketchantang

    IPC: G06K9/00

    CPC classification number: G06K9/0061

    Abstract: The present disclosure relates to a method for locating the iris in an image of an eye, comprising steps of locating the pupil in the image, of detecting positions of intensity steps of pixels located on a line passing through the pupil and transition zones between the iris and the cornea, on either side of the pupil, and of determining the center and the radius of a circle passing through the detected positions of the transitions.

    Abstract translation: 本公开涉及一种用于将虹膜定位在眼睛图像中的方法，包括以下步骤：将瞳孔定位在图像中，检测位于通过瞳孔的线上的像素的强度级的位置和虹膜之间的过渡区域 以及在瞳孔两侧的角膜，以及确定通过检测到的转变位置的圆的中心和半径。

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