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    System and method for reducing artifacts in images
    1.
    发明授权
    System and method for reducing artifacts in images 有权
    用于减少图像中伪像的系统和方法

    公开(公告)号：US08457439B2

    公开(公告)日：2013-06-04

    申请号：US12522438

    申请日：2007-06-19

    申请人： Xueming Henry Gu ,  Ju Guo

    发明人： Xueming Henry Gu ,  Ju Guo

    IPC分类号： G06K9/40 ,  G06K9/00 ,  G06K9/34

    CPC分类号： H04N1/41 ,  H04N1/409 ,  H04N19/86 ,  H04N19/90

    摘要： A system and method of the present disclosure provides a region based error diffusion algorithm or function for reducing artifacts in images. The system and method utilizes knowledge of a region of interest (ROI) in an image and applies effects like dithering or error diffusion to the area or region that shows the artifacts, e.g., a banding phenomenon. The system and method provide for defining a region in at least one first image, the defined region having at least one artifact, tracking the defined region to at least one second image, and applying an error diffusion function to the defined region to mask the at least one artifact in the at least one first and second images.

    摘要翻译： 本公开的系统和方法提供了一种用于减少图像中的伪影的基于区域的误差扩散算法或功能。 该系统和方法利用图像中感兴趣区域（ROI）的知识，并将诸如抖动或误差扩散的效应应用于显示伪影的区域或区域，例如条带现象。 所述系统和方法提供用于在至少一个第一图像中定义区域，所述限定区域具有至少一个假象，将所定义的区域跟踪至少一个第二图像，以及将误差扩散函数应用于所述限定区域以掩蔽所述 所述至少一个第一和第二图像中的至少一个伪影。

    Methods and apparatus for generating custom gamma curves for color correction equipment
    2.
    发明授权
    Methods and apparatus for generating custom gamma curves for color correction equipment 有权
    用于生成色彩校正设备的自定义伽玛曲线的方法和设备

    公开(公告)号：US06266103B1

    公开(公告)日：2001-07-24

    申请号：US09603452

    申请日：2000-06-26

    申请人： Nicholas Barton ,  Sanjay Devappa Rai ,  Xueming Henry Gu

    发明人： Nicholas Barton ,  Sanjay Devappa Rai ,  Xueming Henry Gu

    IPC分类号： H04N969

    CPC分类号： H04N9/69 ,  G06T5/009 ,  G11B27/032 ,  G11B2220/90

    摘要： A control point based real time primary custom gamma curve generator for color correction equipment. A separate custom gamma curve generator circuit is provided for each of the RBG and luminance channels. A plurality of control points is provided and stored in a lookup table (LUT) stored in a random access memory (RAM). The control points are set and/or adjusted by the operator or loaded from a prestored set (e.g. a default custom gamma curve). The instantaneous input signal is divided into two portions—a control point address portion comprising the most significant bits (MSBs) of the input signal, and an interpolation address portion comprising the least significant bits (LSBs) of the input signal. The MSBs are used to select a particular control point value stored in RAM. The LSBs are used for interpolation of values with a smooth curve between control points. Also described are various user interfaces for the custom gamma curve generator.

    摘要翻译： 一种基于控制点的实时主要自定义伽马曲线发生器，用于色彩校正设备。 为每个RBG和亮度通道提供单独的自定义伽马曲线发生器电路。 多个控制点被提供并存储在存储在随机存取存储器（RAM）中的查找表（LUT）中。 控制点由操作者设置和/或调整，或者从预先存储的组（例如默认的自定义伽马曲线）加载。 瞬时输入信号被分成两部分 - 包括输入信号的最高有效位（MSB）的控制点地址部分和包括输入信号的最低有效位（LSB））的内插地址部分。 MSB用于选择存储在RAM中的特定控制点值。 LSB用于在控制点之间具有平滑曲线的值的插值。 还描述了用于自定义伽马曲线发生器的各种用户界面。

    System and methods for automated color correction
    3.
    发明授权
    System and methods for automated color correction 失效
    用于自动色彩校正的系统和方法

    公开(公告)号：US5874988A

    公开(公告)日：1999-02-23

    申请号：US677663

    申请日：1996-07-08

    申请人： Xueming Henry Gu

    发明人： Xueming Henry Gu

    IPC分类号： H04N9/64 ,  H04N9/74 ,  H04N3/36

    CPC分类号： H04N9/64 ,  H04N9/74

    摘要： A system and methods for automated color correction. A computer-based workstation is coupled to an image source such as a telecine or other graphic image generating device, an image processing system such as a color corrector, and a utilization device such as a tape recorder or digital storage device. A target image from the image source is displayed on a display monitor associated with the workstation. An image and data storage device stores images and prestored reference image information for a plurality of selectable reference images. A capture device captures a source image from the image source. An image analyzer software process computes statistical parameters of the source image and compares these statistical parameters to prestored statistical parameters of a selected one of the reference images. The statistical parameters include a color distribution or frequency histogram for various color parameters, e.g. gain, gamma, and black level for video signals. A control unit provides correction value outputs to the image source or to the image processing system, to control the color parameters. The correction value outputs are utilized to control image parameters of the source image in an iterative manner until there is a match between prestored statistical parameters of the reference image and the determined statistical parameters of the target image.

    摘要翻译： 一种用于自动色彩校正的系统和方法。 基于计算机的工作站耦合到诸如电视电影或其他图形图像生成装置的图像源，诸如彩色校正器的图像处理系统，以及诸如磁带记录器或数字存储装置的利用装置。 来自图像源的目标图像显示在与工作站相关联的显示监视器上。 图像和数据存储设备存储用于多个可选参考图像的图像和预存储的参考图像信息。 捕获设备从图像源捕获源图像。 图像分析器软件过程计算源图像的统计参数，并将这些统计参数与所选参考图像的预先存储的统计参数进行比较。 统计参数包括用于各种颜色参数的颜色分布或频率直方图，例如。 视频信号的增益，伽马和黑色电平。 控制单元向图像源或图像处理系统提供校正值输出，以控制颜色参数。 校正值输出用于以迭代方式控制源图像的图像参数，直到参考图像的预先存储的统计参数与确定的目标图像的统计参数之间存在匹配。

    SYSTEM AND METHOD FOR MATCHING COLORS ON DISPLAYS WITH DIFFERENT MODULATION TRANSFER FUNCTIONS
    4.
    发明申请
    SYSTEM AND METHOD FOR MATCHING COLORS ON DISPLAYS WITH DIFFERENT MODULATION TRANSFER FUNCTIONS 审中-公开
    用不同的调制传递函数来匹配显示器上的颜色的系统和方法

    公开(公告)号：US20100134529A1

    公开(公告)日：2010-06-03

    申请号：US12452361

    申请日：2007-06-29

    申请人： Ingo Tobias Doser ,  Carlos Correa ,  Xueming Henry Gu

    发明人： Ingo Tobias Doser ,  Carlos Correa ,  Xueming Henry Gu

    IPC分类号： G09G5/10 ,  G06K9/00 ,  H04N5/445

    CPC分类号： H04N9/646 ,  G06T5/003 ,  H04N1/60

    摘要： A system and method for adjusting modulation transfer function includes a color correction module configured to adjust source picture content based upon a reference display to output color corrected picture content. A modulation frequency function (MTF) simulation module is configured to receive the color corrected picture content and simulate the reference display using the color corrected picture content for a display with MTF characteristics different than the reference display.

    摘要翻译： 用于调整调制传递函数的系统和方法包括：颜色校正模块，被配置为基于参考显示来调整源图像内容以输出色彩校正的图像内容。 调制频率函数（MTF）模拟模块被配置为接收色彩校正的图像内容并且使用用于具有不同于参考显示的MTF特性的显示的颜色校正图像内容来模拟参考显示。

    System and method for scaling images
    5.
    发明授权
    System and method for scaling images 有权
    用于缩放图像的系统和方法

    公开(公告)号：US08351730B2

    公开(公告)日：2013-01-08

    申请号：US12678823

    申请日：2007-09-19

    申请人： Dong-Qing Zhang ,  Ingo Tobias Doser ,  Marco Antonio Vasquez ,  Xueming Henry Gu

    发明人： Dong-Qing Zhang ,  Ingo Tobias Doser ,  Marco Antonio Vasquez ,  Xueming Henry Gu

    IPC分类号： G06K9/40 ,  G06K9/32

    CPC分类号： G06T3/403

    摘要： A system and method for scaling images are provided. An upscaling algorithm or function is employed that increases the size of an image and then filters the upscaled image to remove aliasing artifacts. The system and method provides for acquiring an image of a first size, detecting the geometry of the image, scaling the image to a second size, and filtering the scaled image with at least one filter based on the detected geometry. During the filtering process, the edges of objects in the upscaled image are detected and different filter frequency responses are provided for the detected edges. Providing different filter frequency responses for the detected edges preserves more details for line images.

    摘要翻译： 提供了一种用于缩放图像的系统和方法。 采用增大算法或函数来增加图像的大小，然后对放大的图像进行过滤以消除混叠伪像。 该系统和方法提供获取第一尺寸的图像，检测图像的几何形状，将图像缩放到第二尺寸，以及基于检测到的几何形状用至少一个滤波器对缩放后的图像进行滤波。 在滤波过程中，检测放大图像中的物体的边缘，并为检测到的边缘提供不同的滤波器频率响应。 为检测到的边缘提供不同的滤波器频率响应保留线图像的更多细节。

    METHOD, APPARATUS AND SYSTEM FOR PROVIDING DISPLAY DEVICE SPECIFIC CONTENT OVER A NETWORK ARCHITECTURE
    7.
    发明申请
    METHOD, APPARATUS AND SYSTEM FOR PROVIDING DISPLAY DEVICE SPECIFIC CONTENT OVER A NETWORK ARCHITECTURE 审中-公开
    用于在网络架构中提供显示设备特定内容的方法，装置和系统

    公开(公告)号：US20100135419A1

    公开(公告)日：2010-06-03

    申请号：US12452130

    申请日：2007-06-28

    申请人： Ingo Tobias Doser ,  Xueming Henry Gu ,  Bongsun Lee

    发明人： Ingo Tobias Doser ,  Xueming Henry Gu ,  Bongsun Lee

    IPC分类号： H04N7/12 ,  H04N5/66 ,  H04N7/173

    CPC分类号： H04N21/25825 ,  G06F3/1454 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2340/14 ,  G09G2354/00 ,  G09G2370/022 ,  G09G2370/042 ,  G09G2370/06 ,  G09G2370/08 ,  G09G2370/16 ,  G09G2380/00 ,  H04N19/46 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/2662 ,  H04N21/6377 ,  H04N21/84

    摘要： Embodiments of a method, apparatus and system for providing display device specific picture content over a network architecture include at least one content server for storing a plurality of virtual model versions of the content respectively generated in accordance with a plurality of virtual device models. Each of the plurality of virtual device models has a virtual model specification (VMS) which controls at least one display feature. In one embodiment, the at least one content server engages in negotiations with at least one network attached unit to permit a selection of a particular one of the plurality of virtual model versions based on a comparison of at least one of the at least one display feature of the virtual model specification of at least one of the plurality of virtual device models against an actual display requirement included in an actual display specification of a particular display.

    摘要翻译： 用于通过网络架构提供显示设备特定图像内容的方法，装置和系统的实施例包括至少一个内容服务器，用于存储分别根据多个虚拟设备模型生成的内容的多个虚拟模型版本。 多个虚拟设备模型中的每一个具有控制至少一个显示特征的虚拟模型规范（VMS）。 在一个实施例中，所述至少一个内容服务器与至少一个网络连接单元进行协商，以允许基于所述至少一个显示特征中的至少一个的比较来选择所述多个虚拟模型版本中的特定虚拟模型版本 的多个虚拟设备模型中的至少一个的虚拟模型规范与特定显示器的实际显示规范中包括的实际显示要求相关联。

    Automatic region of interest tracking for a color correction system
    8.
    发明授权
    Automatic region of interest tracking for a color correction system 有权
    用于颜色校正系统的自动感兴趣区域跟踪

    公开(公告)号：US06850249B1

    公开(公告)日：2005-02-01

    申请号：US09282913

    申请日：1999-03-31

    申请人： Xueming Henry Gu

    发明人： Xueming Henry Gu

    IPC分类号： G06T7/20 ,  G06T11/60 ,  G06T15/50 ,  G06T15/60 ,  G09G5/00 ,  G09G5/02

    CPC分类号： G06T11/60 ,  G06K9/2081 ,  G06T7/246

    摘要： A system and methods for creating user definable windows for applying image processing, particularly useful in a post-production color correction equipment. The system allows a user of an image processing system such as a scene by scene color corrector to define a color region of interest in an image for purposes of applying image processing only to the region of interest, with automatic tracking of that region of interest over a plurality of frames in a scene. The user defined window, comprising a closed polygon, is converted on a frame-by-frame basis to a matte that is keyed with image processing such as color correction values. The user defined windows can be edited and stored and recalled for use in other frames. The color region of interest is automatically tracked from a beginning frame to the ending frame of a scene, with a vector window defined for each frame, so as to adapt to and compensate for changes in shape, size, and geometry of the region of interest during the succession of frames in the scene.

    摘要翻译： 一种用于创建用于应用图像处理的用户可定义窗口的系统和方法，在后期制作颜色校正设备中特别有用。 该系统允许诸如场景颜色校正器之类的图像处理系统的用户在图像中定义感兴趣的颜色区域，以便仅将图像处理应用于感兴趣的区域，并自动跟踪该感兴趣的区域 场景中的多个帧。 包括闭合多边形的用户定义窗口在逐帧的基础上被转换成与诸如颜色校正值之类的图像处理键入的哑光。 用户定义的窗口可以被编辑和存储和调用以用于其他帧。 感兴趣的颜色区域从场景的起始帧到结束帧自动跟踪，并为每个帧定义矢量窗口，以便适应和补偿感兴趣区域的形状，大小和几何形状的变化 在场景中的帧继承期间。

    User definable windows for selecting image processing regions
    9.
    发明授权
    User definable windows for selecting image processing regions 失效
    用户可定义的窗口，用于选择图像处理区域

    公开(公告)号：US6097853A

    公开(公告)日：2000-08-01

    申请号：US912662

    申请日：1997-08-18

    申请人： Xueming Henry Gu ,  Sanjay Devappa Rai ,  Ziqiang Huang

    发明人： Xueming Henry Gu ,  Sanjay Devappa Rai ,  Ziqiang Huang

    IPC分类号： G06F3/033 ,  G06F3/048 ,  G06T11/00 ,  G06K9/20

    CPC分类号： G06T11/001 ,  G06F3/04845

    摘要： A system and methods for creating user definable windows for applying image processing, particularly useful in a post-production color correction equipment. The luminance values of a key image are captured in a key frame buffer. The key image is edited in a "paint" mode to enhance the luminance values or eliminate regions of the image, to define a region of interest. The key image is then converted to a 1-bit image. The 1-bit image is vectorized to derive a user defined window. The user defined window, comprising a closed polygon, is converted on a frame-by-frame basis to a bit map matte that is keyed with image processing such as color correction values. The user defined windows can be edited and stored and recalled for use in other frames. A user defined window for a first frame of a scene can be transformed or morphed into a user defined window for a final frame of a scene, with the system automatically interpolating between the beginning window and the ending window so that the window is automatically moved, resized, and changed in geometry during the succession of frames in a scene.

    摘要翻译： 一种用于创建用于应用图像处理的用户可定义窗口的系统和方法，在后期制作颜色校正设备中特别有用。 密钥图像的亮度值被捕获在关键帧缓冲器中。 以“油漆”模式编辑关键图像以增强亮度值或消除图像的区域，以定义感兴趣的区域。 然后将关键图像转换为1位图像。 1位图像被矢量化以导出用户定义的窗口。 包括闭合多边形的用户定义的窗口在逐帧的基础上被转换成与诸如颜色校正值的图像处理键入的位图哑光。 用户定义的窗口可以被编辑和存储和调用以用于其他帧。 用于场景的第一帧的用户定义的窗口可以被变换或变形为用于场景的最终帧的用户定义的窗口，系统在开始窗口和结束窗口之间自动内插，使得窗口被自动移动， 调整大小，并在场景中连续的帧期间改变几何。