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    Printhead color density correction in printing systems
    1.
    发明授权
    Printhead color density correction in printing systems 有权
    打印系统中的打印头颜色浓度校正

    公开(公告)号：US08944548B2

    公开(公告)日：2015-02-03

    申请号：US13747573

    申请日：2013-01-23

    申请人： Samuel Chen ,  Mark C. Rzadca ,  Eric K. Zeise ,  John T. Keech ,  Michael J. Piatt

    发明人： Samuel Chen ,  Mark C. Rzadca ,  Eric K. Zeise ,  John T. Keech ,  Michael J. Piatt

    IPC分类号： B41J29/393 ,  B41J2/21

    CPC分类号： B41J29/393 ,  B41J2/2132 ,  B41J2/2146 ,  B41J2029/3935 ,  H04N1/504 ,  H04N1/506

    摘要： A printing system includes a linehead that jets ink onto a moving print media to print a test block and an integrated imaging system positioned downstream of the linehead with respect to a media transport direction. The integrated imaging system includes an opening in a housing for receiving light reflected from a moving print media. A folded optical assembly in the housing receives the reflected light and transmits the light a distance. One or more image sensors, having known color filter arrays, within the housing each receive the light and capture one or more images of the printed test block. An image processing device is connected to the integrated imaging system for receiving pixel data from the one or more image sensors and configured to determine a color of the ink and a density of the printed test block using the pixel data.

    摘要翻译： 打印系统包括将墨水喷射到移动的打印介质上以打印测试块的线头和相对于介质输送方向定位在线头下游的集成成像系统。 集成成像系统包括用于接收从移动的打印介质反射的光的外壳中的开口。 外壳中的折叠光学组件接收反射光并将光传输一定距离。 在壳体内具有已知滤色器阵列的一个或多个图像传感器接收光并捕获印刷的测试块的一个或多个图像。 图像处理装置连接到集成成像系统，用于从一个或多个图像传感器接收像素数据，并且被配置为使用像素数据来确定墨的颜色和打印​​的测试块的浓度。

    Printhead color density correction in printing systems
    2.
    发明授权
    Printhead color density correction in printing systems 有权
    打印系统中的打印头颜色浓度校正

    公开(公告)号：US08882218B2

    公开(公告)日：2014-11-11

    申请号：US13747552

    申请日：2013-01-23

    申请人： Samuel Chen ,  Mark C. Rzadca ,  Eric K. Zeise ,  John T. Keech ,  Michael J. Piatt

    发明人： Samuel Chen ,  Mark C. Rzadca ,  Eric K. Zeise ,  John T. Keech ,  Michael J. Piatt

    IPC分类号： B41J29/393 ,  B41J2/175 ,  B41J2/21

    CPC分类号： B41J2/175 ,  B41J2/2132 ,  B41J2/2146 ,  H04N1/6041

    摘要： A method for color density correction in a printing system that includes a linehead, with one or more printheads, that jets ink onto a moving print media and an integrated imaging system that captures images of content printed on the moving print media is provided. One or more pixel data values and a measured density value trace for a printed test block are produced by scanning the test block and averaging pixel data in a print media transport direction. A color and a density of the ink in the printed test block are determined using the pixel data values. The measured density value trace is compared with a respective reference density value. It is determined whether there is a difference between the measured density value trace and a reference density value is determined. If there is a difference, ink laydown for the printhead is adjusted based on the difference.

    摘要翻译： 提供了一种用于打印系统中的颜色浓度校正的方法，该方法包括具有一个或多个打印头的线头，其将墨水喷射到移动的打印介质上，以及捕获印刷在移动的打印介质上的内容的图像的集成成像系统。 通过扫描测试块并平均在打印介质传输方向上的像素数据来产生印刷测试块的一个或多个像素数据值和测量的密度值迹线。 使用像素数据值确定印刷测试块中的墨水的颜色和密度。 将测量的密度值迹线与相应的参考密度值进行比较。 确定测量的密度值迹线与参考密度值之间是否存在差异。 如果存在差异，则会根据差异来调整打印头的墨水沉积。

    PRINTHEAD COLOR DENSITY CORRECTION IN PRINTING SYSTEMS
    3.
    发明申请
    PRINTHEAD COLOR DENSITY CORRECTION IN PRINTING SYSTEMS 有权
    打印系统中的PRINTHEAD颜色密度校正

    公开(公告)号：US20140204147A1

    公开(公告)日：2014-07-24

    申请号：US13747573

    申请日：2013-01-23

    申请人： Samuel Chen ,  Mark C. Rzadca ,  Eric K. Zeise ,  John T. Keech ,  Michael J. Piatt

    发明人： Samuel Chen ,  Mark C. Rzadca ,  Eric K. Zeise ,  John T. Keech ,  Michael J. Piatt

    IPC分类号： B41J29/393

    CPC分类号： B41J29/393 ,  B41J2/2132 ,  B41J2/2146 ,  B41J2029/3935 ,  H04N1/504 ,  H04N1/506

    摘要： A printing system includes a linehead that jets ink onto a moving print media to print a test block and an integrated imaging system positioned downstream of the linehead with respect to a media transport direction. The integrated imaging system includes an opening in a housing for receiving light reflected from a moving print media. A folded optical assembly in the housing receives the reflected light and transmits the light a distance. One or more image sensors, having known color filter arrays, within the housing each receive the light and capture one or more images of the printed test block. An image processing device is connected to the integrated imaging system for receiving pixel data from the one or more image sensors and configured to determine a color of the ink and a density of the printed test block using the pixel data.

    摘要翻译： 打印系统包括将墨水喷射到移动的打印介质上以打印测试块的线头和相对于介质输送方向定位在线头下游的集成成像系统。 集成成像系统包括用于接收从移动的打印介质反射的光的外壳中的开口。 外壳中的折叠光学组件接收反射光并将光传输一定距离。 在壳体内具有已知滤色器阵列的一个或多个图像传感器接收光并捕获印刷的测试块的一个或多个图像。 图像处理装置连接到集成成像系统，用于从一个或多个图像传感器接收像素数据，并且被配置为使用像素数据来确定墨的颜色和打印​​的测试块的浓度。

    PRINTHEAD COLOR DENSITY CORRECTION IN PRINTING SYSTEMS
    4.
    发明申请
    PRINTHEAD COLOR DENSITY CORRECTION IN PRINTING SYSTEMS 有权
    打印系统中的PRINTHEAD颜色密度校正

    公开(公告)号：US20140204137A1

    公开(公告)日：2014-07-24

    申请号：US13747552

    申请日：2013-01-23

    申请人： Samuel Chen ,  Mark C. Rzadce ,  Eric K. Zeise ,  John T. Keech ,  Michael J. Piatt

    发明人： Samuel Chen ,  Mark C. Rzadce ,  Eric K. Zeise ,  John T. Keech ,  Michael J. Piatt

    IPC分类号： B41J2/175

    CPC分类号： B41J2/175 ,  B41J2/2132 ,  B41J2/2146 ,  H04N1/6041

    摘要： A method for color density correction in a printing system that includes a linehead, with one or more printheads, that jets ink onto a moving print media and an integrated imaging system that captures images of content printed on the moving print media is provided. One or more pixel data values and a measured density value trace for a printed test block are produced by scanning the test block and averaging pixel data in a print media transport direction. A color and a density of the ink in the printed test block are determined using the pixel data values. The measured density value trace is compared with a respective reference density value. It is determined whether there is a difference between the measured density value trace and a reference density value is determined. If there is a difference, ink laydown for the printhead is adjusted based on the difference.

    摘要翻译： 提供了一种用于打印系统中的颜色浓度校正的方法，该方法包括具有一个或多个打印头的线头，其将墨水喷射到移动的打印介质上，以及捕获印刷在移动的打印介质上的内容的图像的集成成像系统。 通过扫描测试块并平均在打印介质传输方向上的像素数据来产生印刷测试块的一个或多个像素数据值和测量的密度值迹线。 使用像素数据值确定印刷测试块中的墨水的颜色和密度。 将测量的密度值迹线与相应的参考密度值进行比较。 确定测量的密度值迹线与参考密度值之间是否存在差异。 如果存在差异，则会根据差异来调整打印头的墨水沉积。

    Method and photographic element for calibrating digital images
    7.
    发明授权
    Method and photographic element for calibrating digital images 失效
    用于校准数字图像的方法和照相元件

    公开(公告)号：US06985270B1

    公开(公告)日：2006-01-10

    申请号：US09635600

    申请日：2000-08-09

    申请人： John T. Keech ,  John P. Spence ,  Mark E. Shafer ,  Donald O. Bigelow

    发明人： John T. Keech ,  John P. Spence ,  Mark E. Shafer ,  Donald O. Bigelow

    IPC分类号： H04N1/46

    CPC分类号： G03C11/02

    摘要： A method of calibrating digital images having pixels with pixel values includes the steps of: exposing a photographic element to form a latent image of a reference calibration target including a plurality of reference calibration patches; exposing the photographic element to form a latent image of a scene; processing the photographic element to form developed images from the latent images on the photographic element; scanning the developed images to produce digital images; measuring the pixel values of the digital image of the reference calibration target to produce a measured value for each of the reference calibration patches; obtaining an aim value and adjustment data corresponding to each reference calibration patch; generating image calibration corrections using the measured values, the aim values, and the adjustment data; and applying the image calibration corrections to the digital image of the scene.

    摘要翻译： 校准具有像素值的像素的数字图像的方法包括以下步骤：曝光照相元件以形成包括多个参考校准片的参考校准目标的潜像; 曝光照相元件以形成场景的潜像; 处理照相元件以从照相元件上的潜像形成显影图像; 扫描图像以产生数字图像; 测量参考校准目标的数字图像的像素值，以产生每个参考校准块的测量值; 获得对应于每个参考校准片的目标值和调整数据; 使用测量值，目标值和调整数据生成图像校准校正; 以及将图像校准校正应用于场景的数字图像。

    Reference calibration patch arrangement to minimize exposure and measurement artifacts and maximize robustness to defects
    8.
    发明授权
    Reference calibration patch arrangement to minimize exposure and measurement artifacts and maximize robustness to defects 失效
    参考校准贴片布置，以最小化曝光和测量伪影，并最大限度地提高缺陷的鲁棒性

    公开(公告)号：US06284445B1

    公开(公告)日：2001-09-04

    申请号：US09635257

    申请日：2000-08-09

    申请人： John T. Keech ,  Donald O. Bigelow ,  Nathan D. Cahill ,  Thomas F. Powers ,  John P. Spence

    发明人： John T. Keech ,  Donald O. Bigelow ,  Nathan D. Cahill ,  Thomas F. Powers ,  John P. Spence

    IPC分类号： G03C100

    CPC分类号： G03B27/73

    摘要： Reference calibration patches produced by a sequence of exposures on a photographic element, the photographic element exhibiting linear defects in a predominant direction, are arranged in a two dimensional array and exposures are assigned to the reference calibration patches in the array such that nearest neighbors in the predominant direction are not nearest neighbors in the exposure sequence, whereby the effects of a linear defect are reduced; and the maximum number of steps in the exposure sequence between a reference calibration patch and that of its nearest neighbors in any direction is less than a predetermined number, whereby the effects of flare are reduced.

    摘要翻译： 通过照相元件上的曝光序列产生的参考校准贴片，在主要方向上呈现线性缺陷的照相元件被布置成二维阵列，并将曝光分配给阵列中的参考校准片，使得最接近的邻居 主要方向在曝光序列中不是最近的邻居，从而降低线性缺陷的影响; 并且在任何方向上的参考校准片和其最近邻的片段之间的曝光序列中的最大步数小于预定数，从而降低了耀斑的效果。

    Method, apparatus and system for converging images encoded using different standards
    9.
    发明授权
    Method, apparatus and system for converging images encoded using different standards 有权
    用于会聚使用不同标准编码的图像的方法，装置和系统

    公开(公告)号：US08638858B2

    公开(公告)日：2014-01-28

    申请号：US12211141

    申请日：2008-09-16

    申请人： Thomas E. Madden ,  John P. Spence ,  William V. Fintel ,  John T. Keech ,  Esther M. Betancourt

    发明人： Thomas E. Madden ,  John P. Spence ,  William V. Fintel ,  John T. Keech ,  Esther M. Betancourt

    IPC分类号： H04N7/12

    CPC分类号： G06T9/00 ,  G09G5/02 ,  G09G2320/0276 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2340/06 ,  H04N1/6052 ,  H04N9/045 ,  H04N9/67

    摘要： A method for transforming an image expressed in terms of a first image encoding to a second image encoding, includes converting a set of original scene exposure-factor values into corresponding first and second image encoding values. A transform is then derived between the first image encoding values and the second image encoding values. The transform is then applied to an image encoded in said first image encoding. Examples of different encoding that can be transformed include Rec. 709, sRGB and other known image encoding standards. A system for performing such transformations as well as an electronic device that is capable of performing such transformations are also disclosed.

    摘要翻译： 一种将根据第一图像编码表示的图像变换为第二图像编码的方法包括将一组原始场景曝光因子值转换为对应的第一和第二图像编码值。 然后在第一图像编码值和第二图像编码值之间导出变换。 然后将该变换应用于在所述第一图像编码中编码的图像。 可以转化的不同编码的例子包括Rec。 709，sRGB等已知图像编码标准。 还公开了一种用于执行这种变换的系统以及能够执行这种转换的电子设备。