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    Substrate media distortion analysis
    12.
    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。

    Systems and methods for line width control and pixel retagging
    13.
    发明授权
    Systems and methods for line width control and pixel retagging 有权
    线宽控制和像素重新标记的系统和方法

    公开(公告)号：US08467089B2

    公开(公告)日：2013-06-18

    申请号：US12276810

    申请日：2008-11-24

    申请人： Robert P. Loce ,  Beilei Xu ,  Stuart A. Schweid

    发明人： Robert P. Loce ,  Beilei Xu ,  Stuart A. Schweid

    IPC分类号： G06F15/00 ,  G06K9/40

    CPC分类号： H04N1/4092 ,  G06K15/02 ,  G06T5/003 ,  G06T2207/20192 ,  G06T2207/30176

    摘要： A system and method for processing a digital image for rendering are provided. The method includes performing one or more Line Width Control (LWC) operations on digital image data including pixels having pixel values representing gray levels and tag states providing information for specialized rendering techniques thereby changing one or more pixel values resulting in one or more inaccurate pixel tag states, identifying and reassigning one or more inaccurate pixel tag states for improving the rendering of the resultant digital image. An apparatus, such as an image processing system, capable of performing line width control and tag reassignment is also provided.

    摘要翻译： 提供了一种用于处理用于渲染的数字图像的系统和方法。 该方法包括对数字图像数据执行一个或多个线宽控制（LWC）操作，包括具有表示灰度级的像素值的像素和为特殊渲染技术提供信息的标签状态，从而改变一个或多个像素值，导致一个或多个不准确的像素标记 状态，识别和重新分配一个或多个不准确的像素标签状态，以改善所得数字图像的渲染。 还提供了能够执行线宽控制和标签重新分配的诸如图像处理系统的装置。

    Image manipulation
    14.
    发明授权
    Image manipulation 有权
    图像处理

    公开(公告)号：US07627191B2

    公开(公告)日：2009-12-01

    申请号：US11505220

    申请日：2006-08-14

    申请人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

    发明人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

    IPC分类号： G06K9/40

    CPC分类号： H04N1/3872 ,  H04N1/3877

    摘要： Image data is scaled, rotated and/or otherwise manipulated. Diffusive effects of associated interpolation and/or re-sampling are compensated for, or corrected, by applying an adaptive packing form of error diffusion to output data of one or more manipulating transforms. For example, rank order error diffusion is applied to output data of a manipulating transform, thereby restoring compaction to otherwise diffuse halftone structures (e.g., halftone dots, lines, etc), saturated text and/or other small, high contrast image elements.

    摘要翻译： 图像数据被缩放，旋转和/或以其它方式操纵。 通过将误差扩散的自适应填充形式应用于一个或多个操纵变换的输出数据来补偿或校正相关内插和/或重新采样的扩散效应。 例如，排序误差扩散被应用于操纵变换的输出数据，由此恢复压缩以另外漫射半色调结构（例如，半色调点，线等），饱和文本和/或其它小的高对比度图像元素。

    Model-based line width control
    15.
    发明授权
    Model-based line width control 有权
    基于模型的线宽控制

    公开(公告)号：US07539351B2

    公开(公告)日：2009-05-26

    申请号：US11156431

    申请日：2005-06-20

    申请人： Beilei Xu ,  Robert P. Loce ,  Stuart A. Schweid

    发明人： Beilei Xu ,  Robert P. Loce ,  Stuart A. Schweid

    IPC分类号： G06K9/36

    CPC分类号： H04N1/4092 ,  G06T5/002 ,  G06T7/13 ,  G06T11/203

    摘要： Image object adjustment is achieved without lookup tables or templates. Cross sections of image objects are modeled. Parameters of the modeled cross-section are adjusted in accord with a desired effect. For example, a width of the modeled cross section is change. The changed cross section model is sampled to determine a new value for a target pixel. For instance, vector windows are applied to a target pixel. If a candidate image object is included in the vector window, a cross section thereof is modeled as a rectangle. A parameter of the model, such as a width, is adjusted. Area sampling of the adjusted model can be used to determine a new value for the target pixel. Accuracy can be increased by blending information associated with a plurality of vector windows.

    摘要翻译： 没有查找表或模板实现图像对象调整。 图像对象的横截面被建模。 根据期望的效果调整建模横截面的参数。 例如，建模的横截面的宽度是变化的。 对变化的截面模型进行采样，以确定目标像素的新值。 例如，矢量窗口被应用于目标像素。 如果候选图像对象包括在向量窗口中，则其横截面被建模为矩形。 调整模型的参数，如宽度。 可以使用经调整的模型的面积采样来确定目标像素的新值。 可以通过混合与多个向量窗口相关联的信息来提高精度。

    Image manipulation
    16.
    发明申请
    Image manipulation 有权
    图像处理

    公开(公告)号：US20080037899A1

    公开(公告)日：2008-02-14

    申请号：US11505220

    申请日：2006-08-14

    申请人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

    发明人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

    IPC分类号： G06K9/36 ,  G06K9/32

    CPC分类号： H04N1/3872 ,  H04N1/3877

    摘要： Image data is scaled, rotated and/or otherwise manipulated. Diffusive effects of associated interpolation and/or re-sampling are compensated for, or corrected, by applying an adaptive packing form of error diffusion to output data of one or more manipulating transforms. For example, rank order error diffusion is applied to output data of a manipulating transform, thereby restoring compaction to otherwise diffuse halftone structures (e.g., halftone dots, lines, etc), saturated text and/or other small, high contrast image elements.

    摘要翻译： 图像数据被缩放，旋转和/或以其它方式操纵。 通过将误差扩散的自适应填充形式应用于一个或多个操纵变换的输出数据来补偿或校正相关内插和/或重新采样的扩散效应。 例如，排序误差扩散被应用于操纵变换的输出数据，由此恢复压缩以另外漫射半色调结构（例如，半色调点，线等），饱和文本和/或其它小的高对比度图像元素。

    Method and system to adjust for image errors induced by a lens array
    17.
    发明授权
    Method and system to adjust for image errors induced by a lens array 失效
    调整透镜阵列引起的图像误差的方法和系统

    公开(公告)号：US06975778B1

    公开(公告)日：2005-12-13

    申请号：US09559198

    申请日：2000-04-27

    申请人： Robert P. Loce ,  Beilei Xu

    发明人： Robert P. Loce ,  Beilei Xu

    IPC分类号： G06K9/40

    CPC分类号： G06T5/003 ,  G06T2207/10008 ,  G06T2207/30176 ,  H04N1/409

    摘要： An imaging apparatus includes an image acquisition section which converts a physical image to a digital image representation using non-ideal optics such as an array lens. This image acquisition results in a digital image representation containing errors or artifacts. A memory in data communication with a processor stores a plurality of compensation parameters selected for use in correcting errors induced by the lens array. The compensation parameters are determined by performing a lens characterization which includes measuring lens performance at a plurality of locations along the lens. After the processor adjusts the image representation, the post-compensated digital image representation may be further processed, stored, transferred, and the like. According to another embodiment of the invention, a non-ideal array lens induces errors in an image representation during a printing or output operation. Similarly, an image processor applies pre-compensation parameters to the desired or ideal image representation in electronic form to compensate for errors which are known to be induced by the lens during the output operation. Accordingly, when the pre-compensated image representation is output using the non-ideal lens, the physical image output appears to have been printed with an ideal lens.

    摘要翻译： 一种成像装置包括图像获取部分，其使用诸如阵列透镜的非理想光学器件将物理图像转换为数字图像表示。 该图像采集导致包含错误或伪像的数字图像表示。 与处理器进行数据通信的存储器存储选择用于校正由透镜阵列引起的误差的多个补偿参数。 通过执行透镜表征来确定补偿参数，该透镜表征包括在透镜的多个位置处测量透镜性能。 在处理器调整图像表示之后，可以进一步处理，存储，传送后补偿数字图像表示等。 根据本发明的另一实施例，非理想阵列透镜在打印或输出操作期间引起图像表示中的错误。 类似地，图像处理器以电子形式将预补偿参数应用于期望的或理想的图像表示，以补偿在输出操作期间已知由透镜感应的误差。 因此，当使用非理想透镜输出预补偿图像表示时，物理图像输出似乎已经用理想透镜打印。

    Two-dimensional ROS emitter geometry with low banding sensitivity
    20.
    发明授权
    Two-dimensional ROS emitter geometry with low banding sensitivity 有权
    具有低条带灵敏度的二维ROS发射器几何

    公开(公告)号：US08115795B2

    公开(公告)日：2012-02-14

    申请号：US12473819

    申请日：2009-05-28

    申请人： Robert P. Loce ,  Beilei Xu

    发明人： Robert P. Loce ,  Beilei Xu

    IPC分类号： B41J27/00

    CPC分类号： B41J2/473 ,  G02B26/123 ,  G06K15/1261 ,  G06K2215/111

    摘要： An optical scanning device projects an image onto a photoreceptor within a print system. A laser light source generates a plurality of light beam outputs, wherein the light beam outputs are arranged in a two-dimensional parallelogram array within a substantially horizontal axis and a substantially vertical axis that is perpendicular to the horizontal axis. The two-dimensional parallelogram array has an odd number of rows of light beam outputs, wherein each row has an equal even number of light beam outputs. A rotating polygon mirror includes a plurality of deflecting surfaces, each of the deflecting surfaces deflects the light beams emitted from the laser light source. The light beam output array projects a first swath N onto the photoreceptor via the rotating mirror and swaths [N+1, N+2, . . . ] are subsequently placed at a level one-half down the number of light beam outputs of the previous swath. Each swath has the identical number of light emitting outputs as the two-dimensional array.

    摘要翻译： 光学扫描装置将图像投影到打印系统内的感光体上。 激光源产生多个光束输出，其中光束输出以基本上水平的轴线和垂直于水平轴线的基本上垂直的轴线布置在二维平行四边形阵列中。 二维平行四边形阵列具有奇数行的光束输出，其中每行具有相等的偶数个光束输出。 旋转多面镜包括多个偏转表面，每个偏转表面使从激光光源发射的光束偏转。 光束输出阵列通过旋转镜将第一条纹N投射到感光体上，并且将[N + 1，N + 2，... 。 。 ]随后放置在先前条纹的光束输出数量的一半的水平上。 每个条纹具有与二维阵列相同数量的发光输出。