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41. 发明申请

US20130038657A1 In Situ Calibration Of Multiple Printheads To Reference Ink Targets 有权
公开(公告)号：US20130038657A1
公开(公告)日：2013-02-14
申请号：US13208272
申请日：2011-08-11
申请人： R. Enrique Viturro , Yeqing Zhang , Patricia J. Donaldson
发明人： R. Enrique Viturro , Yeqing Zhang , Patricia J. Donaldson
IPC分类号： B41J29/393
CPC分类号： B41J29/393 , B41J2/04508 , B41J2/04581 , B41J2/04588 , B41J2/0459 , B41J2029/3935 , B41J2202/21
摘要： A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.

42. 发明授权

US07864364B2 Color correction of images 失效
标题翻译：图像颜色校正
公开(公告)号：US07864364B2
公开(公告)日：2011-01-04
申请号：US11199692
申请日：2005-08-09
申请人： Yeqing Zhang , Robert P. Loce , Raja Bala
发明人： Yeqing Zhang , Robert P. Loce , Raja Bala
IPC分类号： G03F3/08 , G06F15/00
CPC分类号： H04N1/6027
摘要： A color transformation method which accounts for colorant interactions includes establishing a plurality of tone reproduction curves (TRCs), for one or more of the color separations forming a digital image. Each TRC accounts for colorant interactions between a primary colorant with which the first color separation is to be rendered and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered. The TRCs include input values and their corresponding modified input values. In a given TRC, the input values of the second and optionally other color separations are fixed. For a pixel of the digital image having a given input values for the first and second color separation one or more of the TRCs are selected which bound the fixed input value for the second color separation and a modified input value is determined therefrom.
摘要翻译：考虑着色剂相互作用的颜色变换方法包括为形成数字图像的一个或多个分色建立多个色调再现曲线（TRC）。每个TRC考虑到将要渲染第一颜色分离的主要着色剂与至少一种次要着色剂之间的着色剂相互作用，至少一个次要着色剂将使多个分色中的至少一个分色进行渲染。 TRC包括输入值及其对应的修改输入值。在给定的TRC中，第二个和任选的其他分色的输入值是固定的。对于具有用于第一和第二颜色分离的给定输入值的数字图像的像素，选择一个或多个TRC，其限定用于第二颜色分离的固定输入值，并且从其确定修改的输入值。

43. 发明授权

US07590282B2 Optimal test patch level selection for systems that are modeled using low rank eigen functions, with applications to feedback controls 失效
标题翻译：使用低等级特征函数建模的系统的最佳测试补丁级别选择，应用于反馈控制
公开(公告)号：US07590282B2
公开(公告)日：2009-09-15
申请号：US11314670
申请日：2005-12-21
申请人： Zhigang Fan , Lalit Keshav Mestha , Yao Rong Wang , Robert P. Loce , Yeqing Zhang
发明人： Zhigang Fan , Lalit Keshav Mestha , Yao Rong Wang , Robert P. Loce , Yeqing Zhang
IPC分类号： G06K9/00
CPC分类号： H04N1/4015
摘要： A method and system for selecting an optimal set of S number of calibration patches for an image producing system. The method of selecting the S number of calibration patches includes acquiring a set of K number of basis eigen vectors and model parameters which represent the image producing system having G number of colors and computing the optimal set of S number of colors selected from the set of G number of colors. Each one of the computed set of S number of colors is used for one of the S number of calibration patches.
摘要翻译：一种用于为图像产生系统选择S个校准块的最佳集合的方法和系统。选择S个校准贴片的方法包括获取K个基本特征向量和模型参数的集合，所述基本特征向量和模型参数表示具有G个颜色的图像生成系统，并且计算从该组中选择的S个颜色的最佳集合 G色数。所计算的S个颜色的组合中的每一个用于S个校准块中的一个。

44. 发明授权

US07525704B2 System for providing depth discrimination of source images encoded in a rendered composite image 失效
标题翻译：用于提供在渲染的合成图像中编码的源图像的深度辨别的系统
公开(公告)号：US07525704B2
公开(公告)日：2009-04-28
申请号：US11311950
申请日：2005-12-20
申请人： Robert P. Loce , Yeqing Zhang , Gaurav Sharma , Steven J. Harrington , Peter A. Crean
发明人： Robert P. Loce , Yeqing Zhang , Gaurav Sharma , Steven J. Harrington , Peter A. Crean
IPC分类号： H04N1/46 , H04N13/04
CPC分类号： H04N13/302
摘要： A system for enabling depth perception of image content in a rendered composite image, wherein illuminant/colorant depth discrimination encoding provides encoding of first and second source images in a composite image, for the purposes of subsequent illuminant/colorant depth discrimination decoding. Composite image rendering allows for rendering the composite image in a physical form. Illuminant/colorant depth discrimination decoding allows recovery of the first and second source images, thus offering to an observer the perception of spatial disparity between at least one of the recovered source images and some or all of the remaining image content perceived in the rendered composite image.
摘要翻译：一种用于在渲染的合成图像中实现图像内容的深度感知的系统，其中光源/着色剂深度识别编码提供合成图像中的第一和第二源图像的编码，以用于随后的发光/着色剂深度鉴别解码。复合图像渲染允许以物理形式呈现合成图像。照明/着色深度鉴别解码允许恢复第一和第二源图像，从而向观察者提供至少一个恢复的源图像与所渲染的合成图像中感知的剩余图像内容中的一些或全部之间的空间差异的感知。

45. 发明申请

US20090040261A1 System and method for calibrating a printing system to compensate for sensor artifact using non-complementary illuminations of test patterns on an image substrate 有权
标题翻译：用于校准打印系统的系统和方法，以使用图像基板上的测试图案的非互补照明来补偿传感器伪影
公开(公告)号：US20090040261A1
公开(公告)日：2009-02-12
申请号：US11890879
申请日：2007-08-08
申请人： Yeqing Zhang , Howard A. Mizes , Luo Cheng
发明人： Yeqing Zhang , Howard A. Mizes , Luo Cheng
IPC分类号： B41J29/393 , H01J40/14
CPC分类号： B41J29/393
摘要： A system removes a light sensor artifact from a light sensor in a printer that is used to obtain reflectance measurements from test patterns printed on an image substrate. The system includes a print head for ejecting a plurality of pixels having a first single color in a test pattern onto an image substrate, a light source for illuminating the test pattern on the image substrate with a light, a light sensor for measuring reflectance of the first portion of the test pattern with reference to a light having a color that is non-complementary to the first single color of the test pattern, measuring reflectance of the first portion of the test pattern with reference to a light that is complementary to the first single color of the test pattern, and measuring reflectance of the second portion of the test pattern with reference to the complementary light, the second portion including an area that overlaps the first portion of the test pattern, and a sensor controller configured to scale the reflectance of the first portion measured with reference to the non-complementary light to minimize a difference between the reflectance of the first portion measured with reference to the complementary light and the reflectance of the second portion measured with reference to the complementary light in the overlapped area.
摘要翻译：系统从用于从印刷在图像基板上的测试图形获得反射率测量值的打印机中的光传感器去除光传感器伪影。该系统包括用于将测试图案中的具有第一单色的多个像素喷射到图像基板上的打印头，用于用光照射图像基板上的测试图案的光源，用于测量该图像的反射率的光传感器参考具有与测试图案的第一单色互补的颜色的光的测试图案的第一部分，参考与第一图像互补的光来测量测试图案的第一部分的反射率测试图案的单色，并且参考互补光测量测试图案的第二部分的反射率，第二部分包括与测试图案的第一部分重叠的区域，以及被配置为缩放反射率的传感器控制器相对于非互补光测量的第一部分，以最小化由第一部分测量的第一部分的反射率之间的差异参考互补光和参照重叠区域中的互补光测量的第二部分的反射率。

46. 发明申请

US20070140552A1 Optimal test patch level selection for systems that are modeled using low rank eigen functions, with applications to feedback controls 失效
标题翻译：使用低等级特征函数建模的系统的最佳测试补丁级别选择，应用于反馈控制
公开(公告)号：US20070140552A1
公开(公告)日：2007-06-21
申请号：US11314670
申请日：2005-12-21
申请人： Zhigang Fan , Lalit Mestha , Yao Wang , Robert Loce , Yeqing Zhang
发明人： Zhigang Fan , Lalit Mestha , Yao Wang , Robert Loce , Yeqing Zhang
IPC分类号： G06K9/00 , H04N1/60
CPC分类号： H04N1/4015
摘要： A method and system for selecting an optimal set of S number of calibration patches for an image producing system. The method of selecting the S number of calibration patches includes acquiring a set of K number of basis eigen vectors and model parameters which represent the image producing system having G number of colors and computing the optimal set of S number of colors selected from the set of G number of colors. Each one of the computed set of S number of colors is used for one of the S number of calibration patches.
摘要翻译：一种用于为图像产生系统选择S个校准块的最佳集合的方法和系统。选择S个校准贴片的方法包括获取K个基本特征向量和模型参数的集合，所述基本特征向量和模型参数表示具有G个颜色的图像生成系统，并且计算从该组中选择的S个颜色的最佳集合 G色数。所计算的S个颜色的组合中的每一个用于S个校准块中的一个。

47. 发明申请

US20070035748A1 Color correction of images 失效
标题翻译：图像颜色校正
公开(公告)号：US20070035748A1
公开(公告)日：2007-02-15
申请号：US11199692
申请日：2005-08-09
申请人： Yeqing Zhang , Robert Loce , Raja Bala
发明人： Yeqing Zhang , Robert Loce , Raja Bala
IPC分类号： G03F3/08 , G06F15/00
CPC分类号： H04N1/6027
摘要： A color transformation method which accounts for colorant interactions includes establishing a plurality of tone reproduction curves (TRCs), for one or more of the color separations forming a digital image. Each TRC accounts for colorant interactions between a primary colorant with which the first color separation is to be rendered and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered. The TRCs include input values and their corresponding modified input values. In a given TRC, the input values of the second and optionally other color separations are fixed. For a pixel of the digital image having a given input values for the first and second color separation one or more of the TRCs are selected which bound the fixed input value for the second color separation and a modified input value is determined therefrom.
摘要翻译：考虑着色剂相互作用的颜色变换方法包括为形成数字图像的一个或多个分色建立多个色调再现曲线（TRC）。每个TRC考虑到将要渲染第一颜色分离的主要着色剂与至少一种次要着色剂之间的着色剂相互作用，至少一个次要着色剂将使多个分色中的至少一个分色进行渲染。 TRC包括输入值及其对应的修改输入值。在给定的TRC中，第二个和任选的其他分色的输入值是固定的。对于具有用于第一和第二颜色分离的给定输入值的数字图像的像素，选择一个或多个TRC，其限定用于第二颜色分离的固定输入值，并且从其确定修改的输入值。

48. 发明申请

US20060279749A1 Super resolution encoding 有权
公开(公告)号：US20060279749A1
公开(公告)日：2006-12-14
申请号：US11149522
申请日：2005-06-10
申请人： Yeqing Zhang , Robert Loce
发明人： Yeqing Zhang , Robert Loce
IPC分类号： G06F3/12 , G06F15/00
CPC分类号： G06T9/008
摘要： A method for encoding high resolution data to a form having a reduced number of bits can include predefining a plurality of high-output-resolution output patterns, associating respective output-resolution output patterns of the plurality with respective encoded resolution bit patterns, receiving a block of input-resolution input data, determining a respective difference between a pattern of the received block of input data and the respective output-resolution output patterns, selecting a respective output-resolution output pattern associated with a lowest respective difference to be a representative output pattern for the received block of input data and encoding the received block of input-resolution input data as the respective encoded resolution bit pattern associated with the selected respective representative high-output-resolution output pattern. A system includes a library of output patterns in association with encoded resolution bit patterns, a block analyzer, a block selector and an encoder.

49. 发明申请

US20060274337A1 Inter-separation decorrelator 有权
公开(公告)号：US20060274337A1
公开(公告)日：2006-12-07
申请号：US11143818
申请日：2005-06-02
申请人： Edul Dalal , Wencheng Wu , Robert Loce , Raja Bala , Yeqing Zhang , Norman Zeck
发明人： Edul Dalal , Wencheng Wu , Robert Loce , Raja Bala , Yeqing Zhang , Norman Zeck
IPC分类号： G06F15/00
CPC分类号： H04N1/6038 , H04N1/6041
摘要： Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spatially dependent single colorant compensating functions for compensating for the other aspects of the spatially dependent colorant appearance nonuniformities may also be determined. Image data is processed through the decorrelating function, thereby generating colorant values that are compensated for spatially dependent colorant interaction effects. Optionally, image data is also processed through the spatially dependent single colorant compensating functions, thereby generating colorant values that are compensated for both aspects of colorant appearance nonuniformities. The two kinds of compensating functions may be determined, calibrated and/or stored at different spatial and temporal frequencies or resolutions. One or both of the compensating functions may be employed to maintain consistency across a plurality of rendering devices (e.g., marking engines).

50. 发明申请

US20050111694A1 Illuminant-neutral gray component replacement in systems for spectral multiplexing of source images to provide a composite image, for rendering the composite image, and for spectral demultiplexing of the composite image 有权
标题翻译：用于源图像频谱复用的系统中的光源中性灰度分量替换，以提供合成图像，用于渲染合成图像，以及用于复合图像的频谱解复用
公开(公告)号：US20050111694A1
公开(公告)日：2005-05-26
申请号：US10721948
申请日：2003-11-25
申请人： Robert Loce , Yeqing Zhang , Gaurav Sharma
发明人： Robert Loce , Yeqing Zhang , Gaurav Sharma
IPC分类号： G06T1/00 , H04N1/32 , H04N1/387 , H04N1/41 , H04N1/56 , H04N11/04 , G06K9/00 , G06K7/12 , G06K9/36
CPC分类号： H04N1/56 , H04N1/32149 , H04N1/32309
摘要： Methods and apparatus for spectrally-encoding plural source images and for providing the spectrally-encoded plural source images in a composite image, for rendering the composite image in a physical form, or for recovering at least one of the encoded source images from the rendered composite image such that the recovered source image is made distinguishable. Source image confusion in a rendered composite image is controlled by application of a illuminant-neutral gray component replacement (GCR) technique to the darkness common to the different colorants under the multiple illuminants.
摘要翻译：用于频谱编码多个源图像并用于在合成图像中提供频谱编码的多个源图像的方法和装置，用于以物理形式呈现合成图像，或用于从所渲染的复合物中恢复至少一个编码源图像使得恢复的源图像是可区分的。渲染合成图像中的源图像混淆通过将光源 - 中性灰色成分置换（GCR）技术应用于在多种光源下的不同着色剂共同的黑暗来控制。

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