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1. 发明申请

US20130010336A1 VERSATILE MOIRE-FREE HALFTONE GEOMETRY THAT USES FREQUENCY VECTOR SHEARING 有权
标题翻译：使用频率矢量剪切的VERSATILE无无线HALFTONE几何
公开(公告)号：US20130010336A1
公开(公告)日：2013-01-10
申请号：US13178962
申请日：2011-07-08
申请人： Shen-Ge Wang , Zhigang Fan , Robert Paul Loce
发明人： Shen-Ge Wang , Zhigang Fan , Robert Paul Loce
IPC分类号： H04N1/405
CPC分类号： H04N1/405 , H04N1/52
摘要： As set forth herein, computer-implemented methods and systems facilitate the generation of halftone screens for moiré-free color halftoning. A first fundamental frequency vector and a second fundamental frequency vector of a halftone cell are sheared using a selected shearing value. The shearing value is selected as an offset in a fast scanning or slow scanning direction. The selected shearing value satisfies various moiré-free conditions associated with the identified frequency vectors and is capable of being selected for multiple halftone screens. The halftone screens generated using the sheared frequency vectors are used for moiré-free halftoning.
摘要翻译：如本文所述，计算机实现的方法和系统有助于产生用于无莫尔色彩色调的半色调屏幕。使用选择的剪切值剪切半色调单元的第一基频和第二基频矢量。选择剪切值作为快扫或慢扫描方向的偏移量。所选择的剪切值满足与识别的频率矢量相关的各种无摩擦条件，并且能够被选择用于多个半色调屏幕。使用剪切频率矢量产生的半色调网屏幕用于无摩纹半色调。

2. 发明授权

US08576451B2 Versatile moiré-free halftone geometry that uses frequency vector shearing 有权
标题翻译：使用频率矢量剪切的多功能无云纹半色调几何
公开(公告)号：US08576451B2
公开(公告)日：2013-11-05
申请号：US13178962
申请日：2011-07-08
申请人： Shen-Ge Wang , Zhigang Fan , Robert Paul Loce
发明人： Shen-Ge Wang , Zhigang Fan , Robert Paul Loce
IPC分类号： H04N1/405 , G03G15/01 , G03G13/04 , G09G5/02
CPC分类号： H04N1/405 , H04N1/52
摘要： As set forth herein, computer-implemented methods and systems facilitate the generation of halftone screens for moiré-free color halftoning. A first fundamental frequency vector and a second fundamental frequency vector of a halftone cell are sheared using a selected shearing value. The shearing value is selected as an offset in a fast scanning or slow scanning direction. The selected shearing value satisfies various moiré-free conditions associated with the identified frequency vectors and is capable of being selected for multiple halftone screens. The halftone screens generated using the sheared frequency vectors are used for moiré-free halftoning.
摘要翻译：如本文所述，计算机实现的方法和系统有助于产生用于无莫尔色彩色调的半色调屏幕。使用选择的剪切值剪切半色调单元的第一基频和第二基频矢量。选择剪切值作为快扫或慢扫描方向的偏移量。所选择的剪切值满足与识别的频率矢量相关的各种无摩擦条件，并且能够被选择用于多个半色调屏幕。使用剪切频率矢量产生的半色调网屏幕用于无摩纹半色调。

3. 发明申请

US20100123912A1 PANTOGRAPH METHODS, APPARATUS AND SYSTEMS BASED ON UCR/GCR 失效
标题翻译：基于UCR / GCR的PANTOGRAPH方法，装置和系统
公开(公告)号：US20100123912A1
公开(公告)日：2010-05-20
申请号：US12275036
申请日：2008-11-20
申请人： Shen-Ge Wang , Zhigang Fan
发明人： Shen-Ge Wang , Zhigang Fan
IPC分类号： G06K1/00
CPC分类号： G06K1/123
摘要： The disclosure provides pantograph methods, apparatus and systems. Specifically disclosed is a method of rendering a pantograph including defining a foreground region associated with a pantograph, defining a background region associated with the pantograph, and applying a first UCR/GCR strategy to the background region and a second UCR/GCR strategy to the foreground region, whereby the foreground region is less discernable after the pantograph is rendered with a printing device relative to a reproduction of the rendered pantograph.
摘要翻译：本公开提供了缩放仪方法，装置和系统。具体公开了一种渲染缩放仪的方法，包括定义与缩放仪相关联的前景区域，定义与缩放仪相关联的背景区域，以及将第一UCR / GCR策略应用于背景区域，以及将第二UCR / GCR策略应用于前景区域，由此在使用打印装置渲染缩放仪之后，相对于再现的缩放仪的前景区域较少可辨别。

4. 发明授权

US07590298B2 Decompression with reduced ringing artifacts 失效
标题翻译：用减少的振铃文物减压
公开(公告)号：US07590298B2
公开(公告)日：2009-09-15
申请号：US11402602
申请日：2006-04-12
申请人： Zhigang Fan , Ricardo de Queiroz , Reiner Eschbach , Shen-Ge Wang
发明人： Zhigang Fan , Ricardo de Queiroz , Reiner Eschbach , Shen-Ge Wang
IPC分类号： G06K9/46
CPC分类号： H04N19/86 , H04N19/117 , H04N19/136 , H04N19/18 , H04N19/63 , H04N19/80
摘要： A process for improving the reconstruction of images compressed by the wavelet-based JPEG2000 specification. The basic reconstruction is followed by an edge-preserving filter (such as a sigma filter), another transform to the wavelet domain, an adjustment in the wavelet domain to yield the same quantized values as the compressed input image, and, finally, an inverse wavelet transform to yield the improved image. The process reduces the artifacts in sharp text and graphics documents, yielding images that would otherwise require larger files.
摘要翻译：一种改进基于小波JPEG2000规范压缩图像重建的过程。基本重建之后是边缘保留滤波器（如西格玛滤波器），另一个转换为小波域，小波域中的调整产生与压缩输入图像相同的量化值，最后是反向小波变换产生改进的图像。该过程减少了锐利文本和图形文档中的伪影，产生了否则将需要较大文件的图像。

5. 发明授权

US07433539B2 Method for run-time streak removal 有权
标题翻译：运行时条纹去除方法
公开(公告)号：US07433539B2
公开(公告)日：2008-10-07
申请号：US10993852
申请日：2004-11-19
申请人： Shen-Ge Wang , Zhigang Fan , Reiner Eschbach
发明人： Shen-Ge Wang , Zhigang Fan , Reiner Eschbach
IPC分类号： G06K9/40 , G06K9/32
CPC分类号： H04N1/4097
摘要： A method for run-time streak removal from a scanned image includes providing a scan line of image data from the scanned image; detecting corrupted data within the scan line; evaluating image data located in a neighborhood before and after the corrupted data on the scan line; if the evaluated image data in the neighborhood is smooth, replacing the corrupted data with image data determined by a linear interpolation process; and else if the evaluated image data in the neighborhood is not smooth, replacing the corrupted data with image data determined by the linear prediction process. Various techniques can be used to evaluate the image data located in the surrounding neighborhood. For example, a filter selection step may be used based on prediction discrepancies.
摘要翻译：从扫描图像中去除运行时间条纹的方法包括从扫描图像提供图像数据的扫描线; 检测扫描线内的损坏的数据; 评估位于扫描线上的损坏数据之前和之后的邻域中的图像数据; 如果附近的评估图像数据平滑，则用由线性内插处理确定的图像数据替换损坏的数据; 否则如果附近的评估图像数据不平滑，则用由线性预测处理确定的图像数据替换损坏的数据。可以使用各种技术来评估位于周边地区的图像数据。例如，可以基于预测差异来使用滤波器选择步骤。

6. 发明授权

US07136189B2 Color halftoning using a multi-level successive-filling halftone screening algorithm 失效
标题翻译：使用多级连续填充半色调筛选算法进行彩色半色调
公开(公告)号：US07136189B2
公开(公告)日：2006-11-14
申请号：US10040546
申请日：2002-01-07
申请人： Gaurav Sharma , Helen H. Shin , Shen-Ge Wang , Zhigang Fan
发明人： Gaurav Sharma , Helen H. Shin , Shen-Ge Wang , Zhigang Fan
IPC分类号： G06F15/00
CPC分类号： H04N1/52
摘要： A method is provided for rendering a color image with a plurality of separations with a multi-level successive-filling halftoning process using a single screen for a plurality of separations. For a separation to be processed, first, from the possible multiple levels for the separation, the set of levels that would be used and the number of dots corresponding to the different levels are decided. These decisions are based on the input level for the separation and input levels for the prior process separations. The location of the dots to be printed for the different levels for the separation is then decided by using the halftone screen, while simultaneously taking into account the placement of printed dots for the prior separations. The selection is done so as to best disperse dots and minimize overlap.
摘要翻译：提供了一种使用单个屏幕进行多次分色的多级连续填充半色调处理来渲染具有多个分色的彩色图像的方法。对于待处理的分离，首先，从分离的可能的多个级别中，决定将使用的级别集合和对应于不同级别的点数。这些决定基于先前过程分离的分离和输入水平的输入水平。然后通过使用半色调屏幕来确定要分离的不同级别要打印的点的位置，同时考虑用于先前分离的打印点的位置。进行选择以便最佳地分散点并最小化重叠。

7. 发明授权

US06870640B1 Method and apparatus for rendering a continuous tone image representation with multiple digital halftoning 失效
标题翻译：用于呈现具有多次数字半色调的连续色调图像表示的方法和装置
公开(公告)号：US06870640B1
公开(公告)日：2005-03-22
申请号：US09713940
申请日：2000-11-16
申请人： Zhigang Fan , Shen-Ge Wang
发明人： Zhigang Fan , Shen-Ge Wang
IPC分类号： G06K15/02 , H04N1/405 , G06K15/00 , G06K9/36
CPC分类号： H04N1/4052 , G06K15/02
摘要： A system for rendering an image representation is disclosed. The system includes a halftone processor; a printer interfaced to the halftone processor; and a software routine operative on the halftone processor for a) classifying an input pixel value in either a first classification or a second classification, b) determining an output pixel value by error diffusing the input pixel value when the input pixel value is classified in the first classification, c) determining a temporary output pixel value by stochastic screening the input pixel value when the input pixel value is classified in the second classification, d) determining an adjusted input pixel value based on the input pixel value, the temporary output pixel value and a weighting value, e) determining the output pixel value by error diffusing the adjusted input pixel value, and f) rendering the output pixel value in the printer.
摘要翻译：公开了一种渲染图像表示的系统。该系统包括一个半色调处理器; 连接到半色调处理器的打印机; 以及在所述半色调处理器上操作的软件例程，用于a）对第一分类或第二分类中的输入像素值进行分类，b）当所述输入像素值分类为所述输入像素值时，通过误差扩散所述输入像素值来确定输出像素值第一分类，c）当输入像素值分类为第二分类时，通过随机筛选输入像素值来确定临时输出像素值，d）基于输入像素值确定经调整的输入像素值，临时输出像素值和加权值，e）通过误差扩散调整的输入像素值来确定输出像素值，以及f）在打印机中呈现输出像素值。

8. 发明授权

US08830533B2 System and method for creating machine-readable codes in combination with other images such as logos 有权
标题翻译：用于创建与其他图像（如徽标）相结合的机器可读代码的系统和方法
公开(公告)号：US08830533B2
公开(公告)日：2014-09-09
申请号：US13552162
申请日：2012-07-18
申请人： Zhigang Fan , Yonghui Zhao , Shen-Ge Wang , Hengzhou Ding
发明人： Zhigang Fan , Yonghui Zhao , Shen-Ge Wang , Hengzhou Ding
IPC分类号： H04N1/40
CPC分类号： G06K19/06103
摘要： A process for creating a barcode with an embedded logo considers a printer gamut and divides the printer gamut into multiple regions. A virtual printer gamut is then generated with the colors in bright and dark regions. A target logo image is generated by mapping the virtual gamut to the original logo image. A logo with embedded barcode is produced using the colors specified in the target logo image.
摘要翻译：用于创建具有嵌入式徽标的条形码的过程考虑了打印机色域并将打印机色域划分成多个区域。然后在明暗区域中产生虚拟打印机色域。通过将虚拟色域映射到原始徽标图像来生成目标标志图像。使用目标标志图像中指定的颜色生产带有嵌入式条形码的徽标。

9. 发明授权

US08233197B2 Pantograph methods, apparatus and systems based on UCR/GCR 失效
标题翻译：基于UCR / GCR的受电弓方法，装置和系统
公开(公告)号：US08233197B2
公开(公告)日：2012-07-31
申请号：US12275036
申请日：2008-11-20
申请人： Shen-Ge Wang , Zhigang Fan
发明人： Shen-Ge Wang , Zhigang Fan
IPC分类号： H04N1/40 , H04N1/60 , G06K15/00 , G06K9/00 , H04L9/32 , B42D15/00
CPC分类号： G06K1/123
摘要： The disclosure provides pantograph methods, apparatus and systems. Specifically disclosed is a method of rendering a pantograph including defining a foreground region associated with a pantograph, defining a background region associated with the pantograph, and applying a first UCR/GCR strategy to the background region and a second UCR/GCR strategy to the foreground region, whereby the foreground region is less discernable after the pantograph is rendered with a printing device relative to a reproduction of the rendered pantograph.
摘要翻译：本公开提供了缩放仪方法，装置和系统。具体公开了一种渲染缩放仪的方法，包括定义与缩放仪相关联的前景区域，定义与缩放仪相关联的背景区域，以及将第一UCR / GCR策略应用于背景区域，以及将第二UCR / GCR策略应用于前景区域，由此在使用打印装置渲染缩放仪之后，相对于再现的缩放仪的前景区域较少可辨别。

10. 发明申请

US20070242891A1 Decompression with reduced ringing artifacts 失效
标题翻译：用减少的振铃文物减压
公开(公告)号：US20070242891A1
公开(公告)日：2007-10-18
申请号：US11402602
申请日：2006-04-12
申请人： Zhigang Fan , Ricardo de Queiroz , Reiner Eschbach , Shen-Ge Wang
发明人： Zhigang Fan , Ricardo de Queiroz , Reiner Eschbach , Shen-Ge Wang
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/86 , H04N19/117 , H04N19/136 , H04N19/18 , H04N19/63 , H04N19/80
摘要： A process for improving the reconstruction of images compressed by the wavelet-based JPEG2000 specification. The basic reconstruction is followed by an edge-preserving filter (such as a sigma filter), another transform to the wavelet domain, an adjustment in the wavelet domain to yield the same quantized values as the compressed input image, and, finally, an inverse wavelet transform to yield the improved image. The process reduces the artifacts in sharp text and graphics documents, yielding images that would otherwise require larger files.
摘要翻译：一种改进基于小波JPEG2000规范压缩图像重建的过程。基本重建之后是边缘保留滤波器（如西格玛滤波器），另一个转换为小波域，小波域中的调整产生与压缩输入图像相同的量化值，最后是反向小波变换产生改进的图像。该过程减少了锐利文本和图形文档中的伪影，产生了否则将需要较大文件的图像。

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