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    Substrate media distortion analysis
    2.
    发明授权
    Substrate media distortion analysis 有权
    基板介质失真分析

    公开(公告)号：US08467592B2

    公开(公告)日：2013-06-18

    申请号：US12655216

    申请日：2009-12-23

    申请人： Shen-ge Wang ,  Beilei Xu ,  Robert P. Loce

    发明人： Shen-ge Wang ,  Beilei Xu ,  Robert P. Loce

    IPC分类号： G06K9/00

    CPC分类号： G06T7/001 ,  G06T2207/10008 ,  G06T2207/30144

    摘要： Embodiments described herein are directed to detecting and/or measuring distortions of substrate media that can occur during a printing process. The distortion can be detected and/or measured using a composite image generated from a reference image having a first periodic pattern and print image, disposed on a test substrate media, having a second periodic pattern. The first and second periodic patterns are specified so that the composite image includes a moiré pattern having moiré fringes resulting from interference between the first periodic pattern associated with the reference image and the second periodic pattern associated with the print image. The moiré fringes can be used to detect and calculate an amount of distortion of the test substrate media.

    摘要翻译： 本文描述的实施例涉及检测和/或测量可能在印刷过程中发生的基底介质的变形。 可以使用从具有第二周期性图案的设置在测试基板介质上的具有第一周期图案和打印图像的参考图像生成的合成图像来检测和/或测量失真。 指定第一和第二周期性图案，使得合成图像包括具有由与参考图像相关联的第一周期性图案与与打印图像相关联的第二周期性图案之间的干涉而产生的莫尔条纹的莫尔图案。 莫尔条纹可用于检测和计算测试基板介质的变形量。

    Substrate media distortion analysis
    4.
    发明申请
    Substrate media distortion analysis 有权
    基板介质失真分析

    公开(公告)号：US20110150347A1

    公开(公告)日：2011-06-23

    申请号：US12655216

    申请日：2009-12-23

    申请人： Shen-ge Wang ,  Beilei Xu ,  Robert P. Loce

    发明人： Shen-ge Wang ,  Beilei Xu ,  Robert P. Loce

    IPC分类号： G06K9/68

    CPC分类号： G06T7/001 ,  G06T2207/10008 ,  G06T2207/30144

    摘要： Embodiments described herein are directed to detecting and/or measuring distortions of substrate media that can occur during a printing process. The distortion can be detected and/or measured using a composite image generated from a reference image having a first periodic pattern and print image, disposed on a test substrate media, having a second periodic pattern. The first and second periodic patterns are specified so that the composite image includes a moiré pattern having moiré fringes resulting from interference between the first periodic pattern associated with the reference image and the second periodic pattern associated with the print image. The moiré fringes can be used to detect and calculate an amount of distortion of the test substrate media.

    摘要翻译： 本文描述的实施例涉及检测和/或测量可能在印刷过程中发生的基底介质的变形。 可以使用从具有第二周期性图案的设置在测试基板介质上的具有第一周期图案和打印图像的参考图像生成的合成图像来检测和/或测量失真。 指定第一和第二周期性图案，使得合成图像包括具有由与参考图像相关联的第一周期性图案与与打印图像相关联的第二周期性图案之间的干涉而产生的莫尔条纹的莫尔图案。 莫尔条纹可用于检测和计算测试基板介质的变形量。

    Anisotropic stochastic screen
    5.
    发明授权
    Anisotropic stochastic screen 有权
    各向异性屏幕

    公开(公告)号：US07139101B2

    公开(公告)日：2006-11-21

    申请号：US10285716

    申请日：2002-10-31

    申请人： Robert P. Loce ,  Beilei Xu ,  Shen-ge Wang

    发明人： Robert P. Loce ,  Beilei Xu ,  Shen-ge Wang

    IPC分类号： H04N1/405 ,  H04N1/409

    CPC分类号： H04N1/4051

    摘要： A system and method for the halftoning of gray scale images by utilizing a pixel-by-pixel comparison of the image against an anisotropic stochastic screen is disclosed. The anisotropic stochastic screen comprises a non-deterministic, non-white noise function which, when thresholded, is designed to produce anisotropic dot patterns having a power spectrum characterized as having negligible low frequency components and a high-frequency region which has an absence of stronger dominant spikes.

    摘要翻译： 公开了通过利用图像与各向异性随机屏幕的逐像素比较来对灰度图像进行半色调的系统和方法。 各向异性随机屏幕包括非确定性的非白噪声函数，其在阈值时被设计成产生具有特征在于具有可忽略的低频分量的功率谱的各向异性点图形和不存在强度的高频区域 主导尖峰。

    Halftoning using dot and line screens to avoid two and three color moiré
    6.
    发明授权
    Halftoning using dot and line screens to avoid two and three color moiré 有权
    半色调使用点和线屏幕，以避免二和三色莫尔

    公开(公告)号：US06985256B2

    公开(公告)日：2006-01-10

    申请号：US09909319

    申请日：2001-07-19

    申请人： Xiaoxue Cheng ,  Robert P. Loce ,  Shen-Ge Wang ,  Beilei Xu

    发明人： Xiaoxue Cheng ,  Robert P. Loce ,  Shen-Ge Wang ,  Beilei Xu

    IPC分类号： H04N1/52 ,  H04N1/58

    CPC分类号： H04N1/52

    摘要： Moiré free color halftoning is achieved through the use of two dot screens and one or two line screens. The line screens may be, for example hybrid line screens. Frequency vectors associated with the screens combine to produce moiré frequency vectors representing moiré frequencies above or below the visual range. In one embodiment lines screens are used to halftone yellow and black separations and dot screens are used to halftone cyan and magenta separations. The dot screens are oriented at 15 and 75 degrees. The line screens are oriented at 45 and 135 degrees. Selected screens and screen orientations minimize screen interaction with mechanical or optical artifacts of a rendering device, thereby minimizing mechanical and optical moiré.

    摘要翻译： 通过使用两个点阵屏幕和一个或两个线路屏幕实现无色的半色调。 线路屏幕可以是例如混合线路屏幕。 与屏幕相关联的频率矢量组合以产生表示莫尔频率高于或低于视觉范围的莫尔频率矢量。 在一个实施例中，线屏幕用于半色调黄色和黑色分色，并且点划线用于将青色和品红色分色进行半色调。 点画面定向为15度和75度。 线屏幕定向为45度和135度。 所选择的屏幕和屏幕取向使得与渲染设备的机械或光学伪像的屏幕交互最小化，从而最小化机械和光学莫尔。

    Watermarking
    8.
    发明授权
    Watermarking 有权
    水印

    公开(公告)号：US08107099B2

    公开(公告)日：2012-01-31

    申请号：US11166298

    申请日：2005-06-24

    申请人： Robert P. Loce ,  Shen-Ge Wang

    发明人： Robert P. Loce ,  Shen-Ge Wang

    IPC分类号： H04N1/40

    CPC分类号： H04N1/32251 ,  B41M3/14 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32229 ,  H04N1/32304 ,  H04N1/3232 ,  H04N1/32325

    摘要： A watermark is provided for use with images or image portions, such as saturated text. The watermark is provided as a modulation to the optical density of a public image or image portion wherein both modulated and unmodulated portions of the public image or image portion have an optical density that is beyond a threshold optical density beyond which the human visual system has a low sensitivity to optical density variations. Alternatively, the modulation is made at such a low amplitude as to be difficult to perceive by the human visual system. The modulation may be applied via an overprinting operation. Alternatively the modulation may be applied to image data prior to printing.

    摘要翻译： 提供水印以用于图像或图像部分，例如饱和文本。 提供水印作为对公众图像或图像部分的光密度的调制，其中公共图像或图像部分的调制和未调制部分都具有超过阈值光密度的光密度，超过该阈值的人视觉系统具有 对光密度变化的敏感度低。 或者，以如此低的幅度进行调制，使其难以被人类视觉系统察觉。 可以通过套印操作来应用调制。 或者，可以在打印之前将调制应用于图像数据。

    DIGITAL COMPENSATION METHOD AND APPARATUS
    9.
    发明申请
    DIGITAL COMPENSATION METHOD AND APPARATUS 有权
    数字补偿方法和装置

    公开(公告)号：US20100091334A1

    公开(公告)日：2010-04-15

    申请号：US12251808

    申请日：2008-10-15

    申请人： Mu Qiao ,  Robert P. Loce ,  Shen-Ge Wang ,  Daniel W. Costanza ,  Rakesh S. Kulkarni

    发明人： Mu Qiao ,  Robert P. Loce ,  Shen-Ge Wang ,  Daniel W. Costanza ,  Rakesh S. Kulkarni

    IPC分类号： H04N1/407 ,  G03G15/00

    CPC分类号： H04N1/407 ,  G03G15/5062 ,  G03G2215/0161

    摘要： A digital image processing method. The method includes printing a first set of reference marks on one side of a substrate with a first print engine; printing a second set of reference marks on the same side of the substrate as the first set of reference marks with a second print engine; sensing both sets of reference marks on the substrate with an image sensing unit and generating a digital image of the reference marks; performing image analysis on the digital image to obtain an image-to-image distortion map where the image-to-image distortion map is a local measure of difference between the first set of reference marks and the second set of reference marks; and generating a compensated customer image by using the image-to-image distortion map to reduce registration errors when using the first and second print engines.

    摘要翻译： 数字图像处理方法。 该方法包括用第一印刷引擎在基板的一侧上印刷第一组参考标记; 使用第二打印引擎在与所述第一组参考标记的所述基板的相同侧上打印第二组参考标记; 用图像感测单元感测基板上的两组参考标记，并产生参考标记的数字图像; 对数字图像执行图像分析以获得图像到图像失真图，其中图像到图像失真图是第一组参考标记和第二组参考标记之间的差的局部度量; 以及通过使用图像到图像失真图来生成补偿的客户图像，以减少当使用第一和第二打印引擎时的注册错误。

    CONTENT-AWARE UNIFORM ROSETTE COLOR HALFTONE IMAGE RESIZING USING ITERATIVE DETERMINATION OF ENERGY METRICS
    10.
    发明申请
    CONTENT-AWARE UNIFORM ROSETTE COLOR HALFTONE IMAGE RESIZING USING ITERATIVE DETERMINATION OF ENERGY METRICS 有权
    使用能量测量的迭代确定的内容 - AWARE均匀ROSETTE颜色HALFTONE图像

    公开(公告)号：US20100079813A1

    公开(公告)日：2010-04-01

    申请号：US12242222

    申请日：2008-09-30

    申请人： Edgar Bernal ,  Robert P. Loce ,  Shen-Ge Wang

    发明人： Edgar Bernal ,  Robert P. Loce ,  Shen-Ge Wang

    IPC分类号： H04N1/405

    CPC分类号： H04N1/52 ,  H04N1/393 ,  H04N1/40075

    摘要： As provided herein, there are supplied teachings to systems and methods for resizing a digital uniform rosette halftone image composed of multiple colorant separations, by using uniform rosette halftone tile parameters and iterative determination of energy metrics. One approach entails receiving into a digital imaging system, a digital uniform rosette halftone image and a desired resizing factor for that digital uniform rosette halftone image. Subsequently the system will define uniform rosette screen parameters to define uniform rosette Holladay halftone tiles within the color uniform rosette digital halftone image. From the defined uniform rosette cells, a number of uniform rosette halftone tile seams are determined for manipulation. The orientation of the number of uniform rosette halftone tile seams is dictated by the received desired resizing factor. The energy of the number of uniform rosette halftone tile seams is determined according to an energy metric so as to provide indication of low energy determined uniform rosette halftone tile seams. A resizing of the uniform rosette halftone image by iteratively deleting a number of the low energy determined uniform rosette halftone tile seam is performed so as to obtain a resized uniform rosette halftone image. The resized uniform rosette halftone image may then be printed on a printer.

    摘要翻译： 如本文所提供的，提供了用于通过使用均匀的玫瑰花半色调瓦片参数和能量度量的迭代确定来调整由多个着色剂分离组成的数字均匀玫瑰花半色调图像的系统和方法的教导。 一种方法需要接收数字成像系统，数字均匀花莲半色调图像和用于该数字均匀花莲半色调图像的期望的调整大小因子。 随后，系统将定义均匀的玫瑰花屏幕参数，以在彩色均匀玫瑰花数字半色调图像内定义均匀的玫瑰花Holladay半色调瓷砖。 从定义的均匀花环细胞中，确定了许多均匀的玫瑰花半色调瓷砖接缝用于操纵。 均匀玫瑰状半色调瓷砖接缝数量的取向由接收到的所需调整尺寸系数决定。 根据能量度量确定均匀玫瑰状半色调瓷砖接缝数量的能量，以提供低能量确定的均匀玫瑰花半色调瓷砖接缝的指示。 通过迭代地删除多个低能量确定的均匀玫瑰花结半色调瓦片接缝来调整均匀玫瑰状半色调图像的大小，以获得调整大小的均匀玫瑰花半色调图像。 然后可以在打印机上打印调整大小的均匀花莲半色调图像。