公开(公告)号：US20080068660A1

公开(公告)日：2008-03-20

申请号：US11522610

申请日：2006-09-18

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

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

IPC分类号： G06F15/00

CPC分类号： H04N1/40075 ,  H04N1/4092

摘要： Images that include halftone structures are sharpened. A copy of received halftone image data is blurred, thereby reducing a detectability of edges of the halftone structures. Edges remaining in the blurred image data are detected. An edge enhancement image is generated based on the detected edges. The original received halftone image data is combined with the edge enhancement image, thereby generating sharpness enhanced image data having halftone structures. The sharpness enhanced image data having halftone structures can be rendered through a halftone screen that is compatible with a halftone screen that was used to generate the originally received image data. Alternatively, the sharpness enhanced image data having halftone structures is rendered according to error diffusion techniques, such as, rank order error diffusion in order to achieve or maintain dot or halftone structure compaction.

摘要翻译： 包括半色调结构的图像被削尖。 所接收的半色调图像数据的副本被模糊，从而降低了半色调结构的边缘的可检测性。 检测残留在模糊图像数据中的边缘。 基于检测到的边缘生成边缘增强图像。 原始接收的半色调图像数据与边缘增强图像组合，从而产生具有半色调结构的锐度增强的图像数据。 具有半色调结构的清晰度增强的图像数据可以通过与用于生成原始接收的图像数据的半色调屏幕兼容的半色调屏幕来呈现。 或者，具有半色调结构的清晰度增强的图像数据根据误差扩散技术（例如等级误差扩散）来进行，以实现或维持点或半色调结构压缩。

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。

公开(公告)号：US07079289B2

公开(公告)日：2006-07-18

申请号：US09968651

申请日：2001-10-01

申请人： Robert P. Loce ,  Michael Branciforte ,  Beilei Xu

发明人： Robert P. Loce ,  Michael Branciforte ,  Beilei Xu

IPC分类号： H04N1/40

CPC分类号： H04N1/4052

摘要： Error is distributed to pixels neighboring a pixel of interest based on a ranking of the neighboring pixels. The ranking is based on pixel values of the neighboring pixels. Optionally a spatial weighting is applied to the pixel values before ranking, to provide a preference for pixels closest to the pixel of interest or to a particular portion of a related halftone screen. Rank order based error diffusion provides compact halftone dots without patterning artifacts. An image processing system operative to perform rank order error diffusion includes a pixel ranker and an error diffuser. In a xerographic environment the image processing system includes a xerographic printer.

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。

公开(公告)号：US06763141B2

公开(公告)日：2004-07-13

申请号：US09750540

申请日：2000-12-28

申请人： Beilei Xu ,  Robert P. Loce

发明人： Beilei Xu ,  Robert P. Loce

IPC分类号： G06K940

CPC分类号： H04N1/00005 ,  H04N1/00002 ,  H04N1/00013 ,  H04N1/00034 ,  H04N1/00047 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00082 ,  H04N1/387 ,  H04N1/401 ,  H04N1/4092

摘要： A method of estimating local defocus distance from a conventionally scanned image is provided. More particularly, the method of estimating defocus distance in a scanned image of a non-planar original object, such as an open book, includes scanning at least a portion of the book in order to produce scanned image data. An image feature obtainable from the scanned image data and a quantitative metric corresponding to the image feature are selected. Image feature data is extracted from the scanned image data and compared to a predetermined calibration relationship between the selected image feature and defocus distance in order to calculate a plurality of defocus distances, which are organized into a defocus distance map. The defocus distance map may be used in the subsequent correction of geometric distortions, blurring defects, and illumination variations adjacent the binding of an open book.

摘要翻译： 提供了一种从常规扫描图像估计局部散焦距离的方法。 更具体地，估计非平面原始物体（例如打开的书）的扫描图像中的离焦距离的方法包括扫描书本的至少一部分以产生扫描图像数据。 选择从扫描图像数据可获得的图像特征和与图像特征相对应的定量度量。 从扫描图像数据中提取图像特征数据，并将其与所选择的图像特征和散焦距离之间的预定校准关系进行比较，以便计算被组织成散焦距离图的多个散焦距离。 散焦距离图可以用于随后校正几何失真，模糊缺陷以及与打开的书的绑定相邻的照明变化。

公开(公告)号：US08879118B2

公开(公告)日：2014-11-04

申请号：US13012011

申请日：2011-01-24

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

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

IPC分类号： H04N1/60 ,  H04N1/46 ,  G03F3/08 ,  G06K9/00 ,  H04N1/401 ,  H04N1/387

CPC分类号： H04N1/401 ,  H04N1/387 ,  H04N1/6027

摘要： As set forth herein, computer-implemented methods and systems facilitate detecting non-uniformities (e.g., streaks or other defects) in a scanned image, and correcting the non-uniformities while accounting for geometric distortion therein. For instance a scanned image may include a light streak (e.g., higher L* values than expected) down the page at a given distance from a page edge. Paper shrinkage may also cause the image to be magnified relative to the page. Correction values (e.g., L* knockdown values or the like) are generated to bring the non-uniform L* values down to a darker level. To account for the magnification of the image, the correction values are electronically registered to uniformity data for the page, and applied at the correct location to account for the magnification. The corrected image is then printed by a marking device.

摘要翻译： 如本文所述，计算机实现的方法和系统便于检测扫描图像中的不均匀性（例如，条纹或其他缺陷），并且校正非均匀性，同时考虑其中的几何失真。 例如，扫描图像可以包括距离页边缘一定距离的页面下的轻条纹（例如，比期望的更高的L *值）。 纸张收缩也可能导致相对于页面放大图像。 产生校正值（例如，L *击倒值等）以使不均匀的L *值下降到较暗的水平。 为了考虑图像的放大率，将校正值以电子方式登记到页面的均匀性数据，并将其应用于正确的位置以考虑放大率。 然后通过标记装置打印校正的图像。

公开(公告)号：US20120310665A1

公开(公告)日：2012-12-06

申请号：US13150450

申请日：2011-06-01

申请人： Beilei Xu ,  Stuart A. Schweld ,  Robert P. Loce ,  Lee Anne Williams

发明人： Beilei Xu ,  Stuart A. Schweld ,  Robert P. Loce ,  Lee Anne Williams

IPC分类号： G06Q50/00

CPC分类号： G06Q50/24 ,  G06F19/321 ,  G16H10/60 ,  G16H15/00

摘要： The present disclosure provides a personalized medical video story, comprising: at least a portion of a prerecorded stock tutorial video having stock information and one or more uncompleted segments for inserting personalized medical information onto a single recording medium. The personalized medical information includes personalized health information including vital health statistics. The at least a portion of the prerecorded stock tutorial video includes stock information on a variety of medical maladies combined with the personalized medical information. The stock tutorial video includes insertion points within the uncompleted segments for inserting the personalized medical information. The personalized medical information at the insertion points is merged with the at least a portion of the prerecorded stock tutorial video for producing at least a portion of the personalized medical video story.

摘要翻译： 本公开提供了一种个性化医疗视频故事，包括：具有股票信息的预先记录的股票教程视频的至少一部分和用于将个性化医疗信息插入到单个记录介质上的一个或多个未完成的段。 个性化医疗信息包括个人健康信息，包括重要的健康统计。 预先记录的股票教程视频的至少一部分包括与个性化医疗信息相结合的各种医疗疾病的股票信息。 股票教程视频包括未完成段中的插入点，用于插入个性化医疗信息。 插入点处的个性化医疗信息与预先记录的股票教程视频的至少一部分合并，用于产生至少一部分个性化医疗视频故事。

公开(公告)号：US20120188565A1

公开(公告)日：2012-07-26

申请号：US13012011

申请日：2011-01-24

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

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

IPC分类号： H04N1/60

CPC分类号： H04N1/401 ,  H04N1/387 ,  H04N1/6027

摘要： As set forth herein, computer-implemented methods and systems facilitate detecting non-uniformities (e.g., streaks or other defects) in a scanned image, and correcting the non-uniformities while accounting for geometric distortion therein. For instance a scanned image may include a light streak (e.g., higher L* values than expected) down the page at a given distance from a page edge. Paper shrinkage may also cause the image to be magnified relative to the page. Correction values (e.g., L* knockdown values or the like) are generated to bring the non-uniform L* values down to a darker level. To account for the magnification of the image, the correction values are electronically registered to uniformity data for the page, and applied at the correct location to account for the magnification. The corrected image is then printed by a marking device.

摘要翻译： 如本文所述，计算机实现的方法和系统便于检测扫描图像中的不均匀性（例如，条纹或其他缺陷），并且校正非均匀性，同时考虑其中的几何失真。 例如，扫描图像可以包括距离页边缘一定距离的页面下的轻条纹（例如，比期望的更高的L *值）。 纸张收缩也可能导致相对于页面放大图像。 产生校正值（例如，L *击倒值等）以使不均匀的L *值下降到较暗的水平。 为了考虑图像的放大率，校正值被电子地登记到页面的均匀性数据，并且应用于正确的位置以考虑放大率。 然后通过标记装置打印校正的图像。

公开(公告)号：US20110255102A1

公开(公告)日：2011-10-20

申请号：US12894442

申请日：2010-09-30

申请人： Robert P. Loce ,  Jess R. Gentner ,  Kenneth R. Miller ,  Beilei Xu

发明人： Robert P. Loce ,  Jess R. Gentner ,  Kenneth R. Miller ,  Beilei Xu

IPC分类号： G06K15/00

CPC分类号： G06K15/1898

摘要： Disclosed are FIFO type methods, systems and apparatus for electronically registering image data relative to a raster or other marking device. According to an exemplary method, a FIFO type data queuing configuration is provided, where the length of data memory segments associated with the FIFO are selected to correspond to the number of raster lines from the most upstream point of the physical raster to the point where the given pixel column intersects the physical raster.

摘要翻译： 公开了用于相对于光栅或其他标记装置电子地注册图像数据的FIFO类型方法，系统和装置。 根据示例性方法，提供FIFO类型数据排队配置，其中与FIFO相关联的数据存储器段的长度被选择为对应于从物理光栅的最上游点到其中的光栅线的数量 给定像素列与物理光栅相交。

公开(公告)号：US07755638B2

公开(公告)日：2010-07-13

申请号：US11318131

申请日：2005-12-23

申请人： Robert P. Loce ,  Beilei Xu ,  Stuart A. Schweid ,  Son H. Nguyen ,  Michael Branciforte

发明人： Robert P. Loce ,  Beilei Xu ,  Stuart A. Schweid ,  Son H. Nguyen ,  Michael Branciforte

IPC分类号： G09G5/02

CPC分类号： H04N1/4055 ,  H04N1/4092

摘要： The present application is a method of producing digital image objects with enhanced halftone edges. The method operates by selecting a target pixel location within the digital image; observing a set of pixels within a pixel observation window superimposed on the digital image relative to the target pixel location; generating edge-state codes for a plurality of pairs of neighboring vectors of pixels within the pixel observation window; generating edge-identification codes from the plurality of edge-state codes using at least one look-up table; and, utilizing the edge-identification code to select and apply to the digital image at the target pixel either a first halftone screen having a first fundamental frequency and a first angle or a second halftone screen having a second fundamental frequency and a second angle, wherein the second frequency and second angle are harmonically matched to the first frequency and first angle. The method solves the problem of ragged edges on halftone tints as an automated, operation, with a computing architecture that is readily adapted to a wide variety of tinted edge conditions, and which can be readily adapted to real-time applications.

摘要翻译： 本申请是生产具有增强的半色调边缘的数字图像对象的方法。 该方法通过选择数字图像内的目标像素位置来操作; 观察相对于目标像素位置叠加在数字图像上的像素观察窗内的一组像素; 为所述像素观察窗口内的多个相邻像素向量对生成边缘状态代码; 使用至少一个查找表从所述多个边缘状态代码生成边缘识别码; 并且利用边缘识别码选择并应用于目标像素处的数字图像，即具有第一基频和第一角度的第一半色调屏幕或具有第二基频和第二角度的第二半色调屏幕，其中 第二频率和第二角度与第一频率和第一角度谐波匹配。 该方法解决了作为自动化操作的半色调色调上的粗糙边缘的问题，其具有易于适应各种着色边缘条件的计算架构，并且其可以容易地适应于实时应用。