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1. 发明授权

US06985256B2 Halftoning using dot and line screens to avoid two and three color moiré 有权
标题翻译：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。

2. 发明授权

US08451501B2 Watermark decoding via spectral analysis of pixel spacing 有权
标题翻译：通过像素间隔的频谱分析进行水印解码
公开(公告)号：US08451501B2
公开(公告)日：2013-05-28
申请号：US12966244
申请日：2010-12-13
申请人： Beilei Xu , Joseph C. Sheflin , Shen-Ge Wang , Robert P. Loce , Jack T. LeStrange
发明人： Beilei Xu , Joseph C. Sheflin , Shen-Ge Wang , Robert P. Loce , Jack T. LeStrange
IPC分类号： H04N1/405 , H04N1/40 , G06K9/00 , G06K9/46
CPC分类号： G06T1/0092 , G06T2201/0051
摘要： Provided are methods, apparatus and systems related to watermark decoding via spectral analysis of an image. According to one exemplary method, spectral analysis is performed to decode a watermark within an image, where the pixel spacing associated with the image was modulated to encode the watermark.
摘要翻译：提供了通过图像的光谱分析与水印解码相关的方法，装置和系统。根据一个示例性方法，执行频谱分析以对图像内的水印进行解码，其中与图像相关联的像素间隔被调制以对水印进行编码。

3. 发明授权

US08451500B2 Watermark encoding via pixel spacing modulation 有权
标题翻译：通过像素间隔调制进行水印编码
公开(公告)号：US08451500B2
公开(公告)日：2013-05-28
申请号：US12966164
申请日：2010-12-13
申请人： Beilei Xu , Joseph C Sheflin , Jack T LeStrange , Robert P Loce , Shen-Ge Wang
发明人： Beilei Xu , Joseph C Sheflin , Jack T LeStrange , Robert P Loce , Shen-Ge Wang
IPC分类号： H04N1/405 , G03F3/08 , G06K9/00
CPC分类号： H04N1/32219 , H04N1/32256
摘要： Provided are methods, apparatus and systems related to watermark encoding via pixel spacing modulation. According to one exemplary embodiment, a method modulates the pixel spacing associated with an image to encode a watermark.
摘要翻译：提供了通过像素间隔调制与水印编码相关的方法，装置和系统。根据一个示例性实施例，一种方法调制与图像相关联的像素间隔以编码水印。

4. 发明申请

US20120147429A1 WATERMARK ENCODING VIA PIXEL SPACING MODULATION 有权
标题翻译：水印通过像素空间调制编码
公开(公告)号：US20120147429A1
公开(公告)日：2012-06-14
申请号：US12966164
申请日：2010-12-13
申请人： Beilei Xu , Joseph C. Sheflin , Jack T. Lestrange , Robert P. Loce , Shen-Ge Wang
发明人： Beilei Xu , Joseph C. Sheflin , Jack T. Lestrange , Robert P. Loce , Shen-Ge Wang
IPC分类号： H04N1/405 , H04N1/40 , G06K9/00
CPC分类号： H04N1/32219 , H04N1/32256
摘要： Provided are methods, apparatus and systems related to watermark encoding via pixel spacing modulation. According to one exemplary embodiment, a method modulates the pixel spacing associated with an image to encode a watermark.
摘要翻译：提供了通过像素间隔调制与水印编码相关的方法，装置和系统。根据一个示例性实施例，一种方法调制与图像相关联的像素间隔以编码水印。

5. 发明申请

US20110150347A1 Substrate media distortion analysis 有权
标题翻译：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。

6. 发明授权

US07139101B2 Anisotropic stochastic screen 有权
标题翻译：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。

7. 发明申请

US20120148087A1 WATERMARK DECODING VIA SPECTRAL ANALYSIS OF PIXEL SPACING 有权
标题翻译：水印通过像素间距的光谱分析解码
公开(公告)号：US20120148087A1
公开(公告)日：2012-06-14
申请号：US12966244
申请日：2010-12-13
申请人： Beilei Xu , Joseph C. Sheflin , Shen-Ge Wang , Robert P. Loce , Jack T. LeStrange
发明人： Beilei Xu , Joseph C. Sheflin , Shen-Ge Wang , Robert P. Loce , Jack T. LeStrange
IPC分类号： G06K9/78
CPC分类号： G06T1/0092 , G06T2201/0051
摘要： Provided are methods, apparatus and systems related to watermark decoding via spectral analysis of an image. According to one exemplary method, spectral analysis is performed to decode a watermark within an image, where the pixel spacing associated with the image was modulated to encode the watermark.
摘要翻译：提供了通过图像的光谱分析与水印解码相关的方法，装置和系统。根据一个示例性方法，执行频谱分析以对图像内的水印进行解码，其中与图像相关联的像素间隔被调制以对水印进行编码。

8. 发明授权

US08467592B2 Substrate media distortion analysis 有权
标题翻译：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。

9. 发明授权

US07852536B2 Angle avoidance for color halftone screens 有权
标题翻译：角度回避颜色半色调屏幕
公开(公告)号：US07852536B2
公开(公告)日：2010-12-14
申请号：US11108497
申请日：2005-04-18
申请人： Shen-ge Wang , Beilei Xu , Robert Paul Loce
发明人： Shen-ge Wang , Beilei Xu , Robert Paul Loce
IPC分类号： H04N1/46
CPC分类号： H04N1/409 , H04N1/52
摘要： A method for avoiding objectionable moiré in a color image can include identifying a problematic excitation angle associated with a problematic excitation in a marking process or in the color image and selecting a set of at least two halftone screens for rendering at least two separations of the color image wherein the set of screens is selected to avoid including significant screen fundamental, harmonic and beat frequencies at angles closer than about 1 degree of the identified problematic excitation angle. Halftoning the color image according to the selected set of screens avoids objectionable moiré associated with the problematic excitation.
摘要翻译：用于避免彩色图像中的令人反感的莫尔条纹的方法可以包括识别与标记过程或彩色图像中的有问题的激励相关联的有问题的激发角度，并且选择一组至少两个半色调屏幕，用于渲染颜色的至少两个分色图像，其中所述屏幕组被选择以避免在所识别的有问题的激励角度的近似1度的角度包括显着的屏幕基本，谐波和拍频。根据所选择的一组屏幕对色彩图像进行半色调，避免与有问题的激发相关的令人反感的莫尔。

10. 发明申请

US20080079971A1 ENHANCEMENT OF GLOSSMARK IMAGES AT LOW AND HIGH DENSITIES WITH SELECTIVE APPLICATION OF CLEAR TONER 有权
标题翻译：通过选择性应用清晰度调整器，在低和高密度下增强GLOSSMARK图像
公开(公告)号：US20080079971A1
公开(公告)日：2008-04-03
申请号：US11949307
申请日：2007-12-03
申请人： Chu-Heng Liu , Shen-Ge Wang , Beilei Xu
发明人： Chu-Heng Liu , Shen-Ge Wang , Beilei Xu
IPC分类号： G06F15/00
CPC分类号： B41M5/00 , B41M7/00 , G03G8/00 , G03G9/0926
摘要： The present invention relates to expanding the range of image densities over which the manipulation of differential gloss as may be inherent in halftoned images may be achieved. By selectively applying halftones with anisotropic structure characteristics which are significantly different in orientation while remaining identical in density, a gloss image may be superimposed within an image without the need for special toners or paper. This technique may be enhanced across low and high density areas by application of clear toner to expand the range of image densities over which a desired glossmark image will bear an effect.
摘要翻译：本发明涉及扩大可以实现半色调图像固有的差分光泽操作的图像浓度的范围。通过选择性地施加各向异性结构特征的半色调，其在取向上显着不同，同时保持密度相同，可以在图像内叠加光泽图像，而不需要特殊的调色剂或纸张。通过使用透明调色剂来扩大图像浓度的范围，可以在低密度和高密度区域增强该技术，期望的光泽图像将在其上产生影响。

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