公开(公告)号：US20110249141A1

公开(公告)日：2011-10-13

申请号：US13167642

申请日：2011-06-23

申请人： Kok Chen ,  Gabriel G. Marcu ,  Wei Chen ,  John Z.Z. Zhong

发明人： Kok Chen ,  Gabriel G. Marcu ,  Wei Chen ,  John Z.Z. Zhong

IPC分类号： H04N9/73

CPC分类号： H04N5/58 ,  H04N9/68 ,  H04N21/42202 ,  H04N21/44 ,  H04N21/4854

摘要： Methods and apparatuses for color correction of color device for various operating conditions. In at least one embodiment of the present invention, operating under a current condition, a color correction operation that is derived from color correction operations defined for other conditions is performed on the color data. In another embodiment, a device profile for managing colors for a color device operating under one condition is interpolated from the device profiles for the color device operating under other conditions (e.g., based on the input received from a user interface according to the perception of the user or based on the measurement of a sensor). The interpolation can be based on the input received from a user interface according to the perception of the user or it can be based on the measurement of a sensor or a set of sensors. Various operating conditions for a color device (e.g., a scanner, a camera, a video camera, a printer, a display device such as a CRT monitor or an LCD display panel, a television set, or others) include chromaticity and illumination of ambient light, background color for a display device, characteristics of print media for a printer, humidity, temperature, pressure and ink level for an ink jet printer, the age of a light source for a scanner, and others.

摘要翻译： 用于各种操作条件的彩色装置的颜色校正方法和装置。 在本发明的至少一个实施例中，在当前条件下操作，对颜色数据执行从为其他条件定义的颜色校正操作导出的颜色校正操作。 在另一个实施例中，用于管理在一个条件下操作的彩色设备的颜色的设备配置文件从用于在其他条件下操作的颜色设备的设备配置文件（例如，基于根据用户界面的感知从用户界面接收的输入） 用户或基于传感器的测量）。 内插可以基于根据用户感知从用户界面接收的输入，或者可以基于传感器或一组传感器的测量。 用于彩色设备（例如，扫描仪，照相机，摄像机，打印机，CRT显示器或LCD显示面板，电视机等的显示设备）的各种操作条件包括色度和环境照度 用于显示设备的光，背景颜色，用于打印机的打印介质的特性，用于喷墨打印机的湿度，温度，压力和墨水水平，扫描仪的光源的时代等。

公开(公告)号：US07688328B2

公开(公告)日：2010-03-30

申请号：US11265882

申请日：2005-11-02

申请人： Kok Chen ,  Gabriel G. Marcu

发明人： Kok Chen ,  Gabriel G. Marcu

IPC分类号： G09G5/02 ,  G09G3/36 ,  H04N5/202 ,  H04N5/14 ,  G06K9/00

CPC分类号： G09G5/02 ,  G09G2320/0666 ,  G09G2320/0673

摘要： White point is corrected without degrading luminance on a display device. A white point manager modifies the balance between red, green and blue according to a target white point up to a threshold gray value. As the gray scale approaches white from the threshold gray value, the white point manager blends the balance between red, green and blue from the target white point substantially towards the native white point for the display device, so as not to degrade luminance as the gray scale approaches white.

摘要翻译： 校正白点而不降低显示装置上的亮度。 白点管理员根据目标白点修改红，绿和蓝之间的平衡，直到阈值灰度值。 当灰度级从阈值灰度值接近白色时，白点管理器将红色，绿色和蓝色之间的平衡从目标白点基本上与显示设备的本机白点混合，以免将亮度降低为灰色 规模接近白色。

公开(公告)号：US06972772B1

公开(公告)日：2005-12-06

申请号：US10641214

申请日：2003-08-13

申请人： Kok Chen ,  Gabriel G. Marcu

发明人： Kok Chen ,  Gabriel G. Marcu

IPC分类号： G09G5/02

CPC分类号： G09G5/02 ,  G09G2320/0666 ,  G09G2320/0673

摘要： White point is corrected without degrading luminance on a display device. A white point manager modifies the balance between red, green and blue according to a target white point up to a threshold gray value. As the gray scale approaches white from the threshold gray value, the white point manager blends the balance between red, green and blue from the target white point substantially towards the native white point for the display device, so as not to degrade luminance as the gray scale approaches white.

摘要翻译： 校正白点而不降低显示装置上的亮度。 白点管理员根据目标白点修改红，绿和蓝之间的平衡，直到阈值灰度值。 当灰度级从阈值灰度值接近白色时，白点管理器将红色，绿色和蓝色之间的平衡从目标白点基本上与显示设备的本机白点混合，以免将亮度降低为灰色 规模接近白色。

公开(公告)号：US06844881B1

公开(公告)日：2005-01-18

申请号：US10112281

申请日：2002-03-29

申请人： Kok Chen ,  Gabriel G. Marcu

发明人： Kok Chen ,  Gabriel G. Marcu

IPC分类号： G06T11/00 ,  G09G3/36 ,  G09G5/02 ,  H04N5/202 ,  H04N9/69

CPC分类号： G09G5/02 ,  G06T11/001 ,  G09G3/3607 ,  G09G5/06 ,  G09G5/366 ,  G09G2320/0276 ,  G09G2320/0606 ,  G09G2320/0666 ,  G09G2320/0673 ,  H04N9/69

摘要： Methods and apparatuses for performing gamma corrections to maintain a plurality of colors substantially consistent with a color point. In one aspect of the present invention, a method to generate correction functions for performing color correction for a device for signals of different color components in a color space includes: generating a first correction function for a first color component in the color space; and generating second correction functions for second color components in the color space by reducing first color differences between a target white point and white points of a plurality of grays corrected by the first and second correction functions. The second color components are the color components in the color space other than the first color component. The first color differences are minimized relative to a chromaticity diagram.

摘要翻译： 用于执行伽马校正以维持与色点基本一致的多种颜色的方法和装置。 在本发明的一个方面中，一种生成用于对颜色空间中的不同颜色分量的信号进行装置的颜色校正的校正功能的方法包括：为颜色空间中的第一颜色分量生成第一校正函数; 以及通过减少由所述第一和第二校正功能校正的多个灰度的目标白点和白点之间的第一颜色差异，来产生所述颜色空间中的第二颜色分量的第二校正函数。 第二颜色分量是除了第一颜色分量之外的颜色空间中的颜色分量。 第一个色差相对于色度图最小化。

公开(公告)号：US07084881B1

公开(公告)日：2006-08-01

申请号：US10637246

申请日：2003-08-07

申请人： Kok Chen ,  Gabriel G. Marcu ,  Steve Swen

发明人： Kok Chen ,  Gabriel G. Marcu ,  Steve Swen

IPC分类号： G09G5/02 ,  G06K9/00

CPC分类号： G09G5/02 ,  G06T11/001 ,  G09G3/3607 ,  G09G5/06 ,  G09G5/366 ,  G09G2320/0276 ,  G09G2320/0606 ,  G09G2320/0666 ,  G09G2320/0673 ,  H04N9/69

摘要： Methods and apparatuses for color correction that includes gamma correction. One embodiment of the present invention pre-processes the native device information of a color device (e.g., a color display device) to generate pseudo-native device information such that when a single, unique function is applied on the pseudo-native device information, a customized look up table for gamma correction in a video card is generated. The customized look up table is calibrated for the optimization of color rendering for skin tone in one region in a color space while maintaining the gray colors for the user interface elements in another region in the color space.

公开(公告)号：US08587603B2

公开(公告)日：2013-11-19

申请号：US11484260

申请日：2006-07-10

申请人： Kok Chen ,  Gabriel G. Marcu ,  Steve Swen

发明人： Kok Chen ,  Gabriel G. Marcu ,  Steve Swen

IPC分类号： G09G5/02

CPC分类号： G09G5/02 ,  G06T11/001 ,  G09G3/3607 ,  G09G5/06 ,  G09G5/366 ,  G09G2320/0276 ,  G09G2320/0606 ,  G09G2320/0666 ,  G09G2320/0673 ,  H04N9/69

摘要： Methods and apparatuses for color correction that includes gamma correction. One embodiment of the present invention pre-processes the native device information of a color device (e.g., a color display device) to generate pseudo-native device information such that when a single, unique function is applied on the pseudo-native device information, a customized look up table for gamma correction in a video card is generated. The customized look up table is calibrated for the optimization of color rendering for skin tone in one region in a color space while maintaining the gray colors for the user interface elements in another region in the color space.

摘要翻译： 用于颜色校正的方法和装置，包括伽马校正。 本发明的一个实施例预处理彩色设备（例如，彩色显示设备）的本地设备信息以生成伪本机设备信息，使得当在伪本机设备信息上应用单个唯一功能时， 生成视频卡中用于伽马校正的定制查找表。 校准了定制的查找表，用于优化颜色空间中一个区域中肤色的显色，同时保持颜色空间中另一区域中的用户界面元素的灰色。

公开(公告)号：US07969478B1

公开(公告)日：2011-06-28

申请号：US10419001

申请日：2003-04-18

申请人： Kok Chen ,  Gabriel G. Marcu ,  Wei Chen ,  John Z. Z. Zhong

发明人： Kok Chen ,  Gabriel G. Marcu ,  Wei Chen ,  John Z. Z. Zhong

IPC分类号： H04N9/73

CPC分类号： H04N5/58 ,  H04N9/68 ,  H04N21/42202 ,  H04N21/44 ,  H04N21/4854

摘要： Methods and apparatuses for color correction of color device for various operating conditions. In at least one embodiment of the present invention, operating under a current condition, a color correction operation that is derived from color correction operations defined for other conditions is performed on the color data. In another embodiment, a device profile for managing colors for a color device operating under one condition is interpolated from the device profiles for the color device operating under other conditions (e.g., based on the input received from a user interface according to the perception of the user or based on the measurement of a sensor). The interpolation can be based on the input received from a user interface according to the perception of the user or it can be based on the measurement of a sensor or a set of sensors. Various operating conditions for a color device (e.g., a scanner, a camera, a video camera, a printer, a display device such as a CRT monitor or an LCD display panel, a television set, or others) include chromaticity and illumination of ambient light, background color for a display device, characteristics of print media for a printer, humidity, temperature, pressure and ink level for an ink jet printer, the age of a light source for a scanner, and others.

摘要翻译： 用于各种操作条件的彩色装置的颜色校正的方法和装置。 在本发明的至少一个实施例中，在当前条件下操作，对颜色数据执行从为其他条件定义的颜色校正操作导出的颜色校正操作。 在另一个实施例中，用于管理在一个条件下操作的彩色设备的颜色的设备配置文件从用于在其他条件下操作的颜色设备的设备配置文件（例如，基于根据用户界面的感知从用户界面接收的输入） 用户或基于传感器的测量）。 内插可以基于根据用户感知从用户界面接收的输入，或者可以基于传感器或一组传感器的测量。 用于彩色设备（例如，扫描仪，照相机，摄像机，打印机，CRT显示器或LCD显示面板，电视机等的显示设备）的各种操作条件包括色度和环境照度 用于显示设备的光，背景颜色，用于打印机的打印介质的特性，用于喷墨打印机的湿度，温度，压力和墨水水平，扫描仪的光源的时代等。

公开(公告)号：US07456843B2

公开(公告)日：2008-11-25

申请号：US11008890

申请日：2004-12-10

申请人： Kok Chen ,  Gabriel G. Marcu

发明人： Kok Chen ,  Gabriel G. Marcu

IPC分类号： G09G5/02

CPC分类号： G09G5/02 ,  G06T11/001 ,  G09G3/3607 ,  G09G5/06 ,  G09G5/366 ,  G09G2320/0276 ,  G09G2320/0606 ,  G09G2320/0666 ,  G09G2320/0673 ,  H04N9/69

摘要： Methods and apparatuses for performing gamma corrections to maintain a plurality of colors substantially consistent with a color point. In one aspect of the present invention, a method to generate correction functions for performing color correction for a device for signals of different color components in a color space includes: generating a first correction function for a first color component in the color space; and generating second correction functions for second color components in the color space by reducing first color differences between a target White point and white points of a plurality of grays corrected by the first and second correction functions. The second color components are the color components in the color space other than the first color component. The first color differences are minimized relative to a chromaticity diagram.

摘要翻译： 用于执行伽马校正以维持与色点基本一致的多种颜色的方法和装置。 在本发明的一个方面中，一种生成用于对颜色空间中的不同颜色分量的信号进行装置的颜色校正的校正功能的方法包括：为颜色空间中的第一颜色分量生成第一校正函数; 以及通过减少由所述第一和第二校正功能校正的多个灰度的目标白点和白点之间的第一颜色差异，来产生所述颜色空间中的第二颜色分量的第二校正功能。 第二颜色分量是除了第一颜色分量之外的颜色空间中的颜色分量。 第一个色差相对于色度图最小化。

公开(公告)号：US06954193B1

公开(公告)日：2005-10-11

申请号：US09657532

申请日：2000-09-08

申请人： Jose Olav Andrade ,  Kok Chen ,  Peter N. Graffagnino ,  Gabriel G. Marcu

发明人： Jose Olav Andrade ,  Kok Chen ,  Peter N. Graffagnino ,  Gabriel G. Marcu

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G09G2320/028 ,  G09G2320/0673

摘要： A method and apparatus is described for providing a consistent visual appearance of pixels of a display screen with respect to a viewing position. Variations between perceived pixel level values associated with the pixels and corresponding pixel level values may be compensated for. Variations are associated with a viewing angle between pixel location and the viewing position and compensated for by applying a respective different correction factor to each of the corresponding pixel level values based on a respective viewing angle. Accordingly different non-linear correction curves corresponding to locations may be established relating a range of pixel level values to a corresponding range of corrected pixel level values associated with the viewing position. A calibration pattern may be further be displayed and user inputs associated with locations received responsive to calibration pattern. Viewing position and non-linear correction curves may thereby be established for locations relative to the viewing position and based on user inputs. User inputs are stored with an association to a user identity. A user input is processed to obtain user identity and stored user inputs and viewing position and non-linear correction curves established based on the user inputs. Change is detected in a relative orientation between a display orientation and the viewing position and a second respective different correction factor applied to each corresponding pixel level value based on the change. Second different non-linear correction curves are established relating pixel level values to corrected values associated with relative orientations. Interpolation or an analytical function is applied to arrive at corrected pixel values. To detect changes, one or more sensors are read. A viewing position sensor senses the position of a remote device coupled to the viewer. The viewer feature tracking sensor includes a camera and means for analyzing an image for features associated with the viewer.

公开(公告)号：US20070206028A1

公开(公告)日：2007-09-06

申请号：US11745157

申请日：2007-05-07

申请人： Mark Zimmer ,  Kok Chen

发明人： Mark Zimmer ,  Kok Chen

IPC分类号： G09G5/00

CPC分类号： G06T11/203 ,  G06T5/002 ,  G06T5/20

摘要： A method, device and computer system for creating a smooth, continuous height (scalar or vector) field are described. The described techniques permit arbitrary closed regions to be smoothly shaded without producing unnatural smoothness at the region's edges or boundaries.

摘要翻译： 描述了用于创建平滑，连续的高度（标量或矢量）场的方法，设备和计算机系统。 所描述的技术允许任意闭合区域被平滑地遮蔽，而不会在该区域的边缘或边界处产生不自然的平滑度。