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    Line segment detector and line segment detecting method
    1.
    发明授权
    Line segment detector and line segment detecting method 有权

    公开(公告)号：EP1808812B1

    公开(公告)日：2018-09-26

    申请号：EP07000462.7

    申请日：2007-01-10

    申请人： NEC Platforms, Ltd.

    发明人： Hirao, Kouichirou

    IPC分类号： G06T7/12

    CPC分类号： G06K9/56 ,  G06K9/4609 ,  G06K2209/01 ,  G06T7/12 ,  G06T2207/30176

    摘要： A line segment detector comprises a vertical line detecting part, a horizontal line detecting part, a left-to-right downward slanting line detecting part, a left-to-right upward slanting line detecting part, and a line-segment detecting/synthesizing section that calculates OR operation of output values from the vertical line detecting part, the horizontal line detecting part, the left-to-right downward slanting line detecting part, and the left-to-right upward slanting line detecting part. The line segment detector further comprises a re-determining unit comprising a second line-segment detecting part that sets a window to the detection result near the target pixel, counts the number of pixels whose detection result is determined as the line segment in the set window, determines, when the counted value is not smaller than a predetermined threshold value, that the pixel is a line segment.

    PRINTER-VERIFIERS AND SYSTEMS AND METHODS FOR VERIFYING PRINTED INDICIA
    2.
    发明公开
    PRINTER-VERIFIERS AND SYSTEMS AND METHODS FOR VERIFYING PRINTED INDICIA 审中-公开

    公开(公告)号：EP3336770A1

    公开(公告)日：2018-06-20

    申请号：EP17205982.6

    申请日：2017-12-07

    申请人： Datamax-O'Neil Corporation

    发明人： CELINDER, Thomas ,  ACKLEY, H. Sprague

    IPC分类号： G06K15/02 ,  G06K15/00

    CPC分类号： G06T7/0002 ,  B41J29/393 ,  G06K15/027 ,  G06K15/4025 ,  G06T2207/30144 ,  G06T2207/30176 ,  H04N1/32144 ,  H04N2201/325 ,  H04N2201/3253

    摘要： A printer-verifier is provided for printing and verifying a printed indicium. Printer-verifier includes imaging module for capturing image of printed indicium on print media, memory communicatively coupled to imaging module and configured to store print quality verification program, and processor communicatively coupled to memory. Processor is configured by print quality verification program to evaluate print quality of printed indicium, determine if print quality meets print quality standard, reject printed indicium on print media as rejected printed media when print quality does not meet print quality standard, and one of output location-specific feedback about rejected printed media or send a command signal to cutting device to destroy rejected printed media. Location-specific feedback is in same language as language associated with printer-verifier. A printer and methods for verifying the printed indicium are also provided.

    METHOD FOR CORRECTING PRINTING MISALIGNMENT IN PRINTING APPARATUS
    3.
    发明公开
    METHOD FOR CORRECTING PRINTING MISALIGNMENT IN PRINTING APPARATUS 审中-公开
    打印设备中打印错位的校正方法

    公开(公告)号：EP3281792A1

    公开(公告)日：2018-02-14

    申请号：EP17757456.3

    申请日：2017-05-18

    申请人： I. Mer Co., Ltd.

    发明人： CHISHIKI, Mitomu ,  IZUME, Masayuki

    IPC分类号： B41F33/00 ,  B41F17/22

    CPC分类号： B41F33/0081 ,  B41P2233/52 ,  G06K15/021 ,  G06K15/027 ,  G06K2215/0097 ,  G06T7/0002 ,  G06T2207/10004 ,  G06T2207/30176

    摘要： Provided is a method of correcting printing misalignment in a printing apparatus that performs registration by using a printing misalignment inspection mark. This method is capable of improving registration accuracy and is capable of correcting the printing misalignment with higher accuracy. An image processor has printing misalignment value measurement means that measures a misalignment value with respect to a set position of the printing misalignment inspection mark that has been printed on an object. A printing misalignment inspection mark A is a hollow circle that is white inside, and the printing misalignment value measurement means measures the misalignment value with respect to the set position by using a white portion W of the printing misalignment inspection mark A.

    摘要翻译： 提供了一种在通过使用打印错位检查标记执行配准的打印装置中校正打印错位的方法。 该方法能够提高配准精度并且能够以更高的准确度校正打印错位。 图像处理器具有打印错位值测量装置，该错位值测量装置测量相对于已经打印在物体上的打印错位检查标记的设定位置的错位值。 打印错位检查标记A是内部为白色的空心圆，并且打印错位值测量装置通过使用打印错位检查标记A的白色部分W来测量相对于设定位置的错位值。

    METHOD AND DEVICE FOR REMOVING BACKGROUND OF CHARACTER IN COLOR IMAGE, METHOD FOR ADJUSTING INSTALLATION OF LINE CAMERA, AND CHART FOR ADJUSTING INSTALLATION
    8.
    发明公开
    METHOD AND DEVICE FOR REMOVING BACKGROUND OF CHARACTER IN COLOR IMAGE, METHOD FOR ADJUSTING INSTALLATION OF LINE CAMERA, AND CHART FOR ADJUSTING INSTALLATION 审中-公开
    METHOD AND APPARATUS FOR REMOVING的信背景在彩色图像中，METHOD FOR ADJUSTING线阵相机的安装和图表设置安装

    公开(公告)号：EP3133387A1

    公开(公告)日：2017-02-22

    申请号：EP15779959.4

    申请日：2015-04-16

    申请人： Glory Ltd.

    发明人： YANAGIUCHI,Sayuri ,  ONISHI, Hiroyuki ,  TANIGAWA, Ryuzo ,  ADACHI, Kazutaka

    IPC分类号： G01N21/892 ,  B41J29/46 ,  G06K9/20 ,  B41J21/00

    CPC分类号： G06K9/18 ,  B41J29/393 ,  B41J29/46 ,  G01N21/8901 ,  G01N21/892 ,  G01N2201/101 ,  G06K9/20 ,  G06K9/3216 ,  G06K9/346 ,  G06T7/11 ,  G06T7/194 ,  G06T2207/10024 ,  G06T2207/30144 ,  G06T2207/30176

    摘要： Provided is a method for removing character background in a color image that obtains an image for printing evaluation by removing a background design of a character from the color image of a printed object on which the character has been printed. The method includes separating a color input image into a character part and a background part, calculating a discriminant function for separating pixels of the character part and pixels of the background part based on pixel values, and generating a background-removed image by removing the background part from the input image by using the discriminant function. Moreover, an installation adjustment method of a line camera including adjusting, based on a signal acquired by capturing an installation adjustment chart fixed to the inspection drum, an installation position of the line camera that acquires an image of a large-size printed object arranged on an inspection drum, is executed by using an installation adjustment chart wherein a plurality of patterns formed by white background and black vertical lines are arranged by shifting in a vertical direction so that the vertical lines continue horizontally only in a predetermined rectangular region that is elongated in a scan line direction of the line camera.

    摘要翻译： 提供了一种用于在彩色图像中除去背景字符的方法并获得用于通过从在其上已经打印的字符的印刷对象的彩色图像的字符的背景设计印刷评价用图像。 该方法包括分离的彩色输入图像分割为字符部分和背景部分，计算判别函数用于基于像素值分离的字符部分的像素与背景部分的像素，并且通过去除背景生成背景除去图像 通过使用判别函数部分从所述输入图像。 更上方，以线阵相机，包括调整的基础上，通过在固定于检查转筒安装调整图表捕捉到线阵相机的安装位置并获取的信号的安装调整方法获得大尺寸的打印对象布置在图像 上检查转筒中，通过使用在安装时调整图表worin由白色背景和黑色垂直线形成的图案的多个通过在垂直方向上偏移布置所以没有垂直线只在预定的矩形区域水平地继续并在细长的执行的 线阵相机的扫描线方向。