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1. 发明授权

US06947597B2 Soft picture/graphics classification system and method 失效
标题翻译：软图片/图形分类系统和方法
公开(公告)号：US06947597B2
公开(公告)日：2005-09-20
申请号：US09965880
申请日：2001-09-28
申请人： Ying-wei Lin , Stuart A. Schweid , Jeng-nan Shiau , Raja Bala , Zhigang Fan
发明人： Ying-wei Lin , Stuart A. Schweid , Jeng-nan Shiau , Raja Bala , Zhigang Fan
IPC分类号： G06K9/20 , G06T5/00 , H04N1/40 , G06K9/62
CPC分类号： H04N1/40062 , G06K9/00456
摘要： A method and system for image processing, in conjunction with classification of images between natural pictures and synthetic graphics, using SGLD texture (e.g., variance, bias, skewness, and fitness), color discreteness (e.g., R_L, R_U, and R_V normalized histograms), or edge features (e.g., pixels per detected edge, horizontal edges, and vertical edges) is provided. In another embodiment, a picture/graphics classifier using combinations of SGLD texture, color discreteness, and edge features is provided. In still another embodiment, a “soft” image classifier using combinations of two (2) or more SGLD texture, color discreteness, and edge features is provided. The “soft” classifier uses image features to classify areas of an input image in picture, graphics, or fuzzy classes.
摘要翻译：一种用于图像处理的方法和系统，结合使用SGLD纹理（例如，方差，偏差，偏度和适应度）的自然图像和合成图像之间的图像分类，颜色离散性（例如，R_L，R_U和R_V归一化直方图）或边缘特征（例如，每个检测到的边缘的像素，水平边缘和垂直边缘）。在另一个实施例中，提供了使用SGLD纹理，颜色离散性和边缘特征的组合的图片/图形分类器。在另一个实施例中，提供了使用两（2）或更多SGLD纹理，颜色离散性和边缘特征的组合的“软”图像分类器。 “软”分类器使用图像特征来对图像，图形或模糊类中的输入图像的区域进行分类。

2. 发明授权

US06529291B1 Fuzzy black color conversion using weighted outputs and matched tables 有权
标题翻译：使用加权输出和匹配表进行模糊黑色转换
公开(公告)号：US06529291B1
公开(公告)日：2003-03-04
申请号：US09401378
申请日：1999-09-22
申请人： Stuart A. Schweid , Jeng-nan Shiau , Zhigang Fan
发明人： Stuart A. Schweid , Jeng-nan Shiau , Zhigang Fan
IPC分类号： G06F1500
CPC分类号： H04N1/6025
摘要： A color conversion table designed to produce 0% under-color removal and a 100% under-color removal TRC are configured as a matched pair and are used to render an image from fuzzy detected color signals, including providing variable under-color removal to obtain fuzzy black conversion. The output of the color conversion table and the TRC are multiplied by a weighted value which depends on a value of a received neutral tag. The weighted outputs of the color conversion table and TRC are added such that a varying weighted output is generated. The generated output is used in image rendering to produce a smooth transition from a full color to monochrome, where variable amounts of under-color removal are obtained using the color correction table and TRC.
摘要翻译：被设计为产生0％的底色去除和100％底色去除TRC的颜色转换表被配置为匹配对，并且用于从模糊检测到的颜色信号渲染图像，包括提供可变的底色去除以获得模糊黑转换。颜色转换表和TRC的输出乘以取决于所接收的中立标签的值的加权值。添加颜色转换表和TRC的加权输出，使得生成变化的加权输出。生成的输出用于图像渲染，以产生从全色到单色的平滑过渡，其中使用颜色校正表和TRC获得可变量的底色去除。

3. 发明授权

US06631215B1 Method and apparatus for implementing integrated cavity effect correction in scanners 有权
标题翻译：在扫描仪中实现集成腔效应校正的方法和装置
公开(公告)号：US06631215B1
公开(公告)日：2003-10-07
申请号：US09448009
申请日：1999-11-23
申请人： Jeng-nan Shiau , Raymond J. Clark , Stuart A. Schweid , Terri A. Clingerman
发明人： Jeng-nan Shiau , Raymond J. Clark , Stuart A. Schweid , Terri A. Clingerman
IPC分类号： G06K940
CPC分类号： G06T5/20
摘要： A method and apparatus are provided for determining a weighted average measured reflectance parameter Rm for pixels in an image for use in integrated cavity effect correction of the image. For each pixel of interest Pi,j in the image, an approximate spatial dependent average Ai,j, Bi,j of video values in a region of W pixels by H scan lines surrounding the pixel of interest Pi,j is computed by convolving video values Vi,j of the image in the region with a uniform filter. For each pixel of interest Pi,j a result of the convolving step is used as the reflectance parameter Rm. The apparatus includes a video buffer for storing the pixels of the original scanned image, and first and second stage average buffers for storing the computed approximate spatial dependent averages Ai,j, Bi,j. First and second stage processing circuits respectively generate the first and second stage average values Ai,j, Bi,j by convolving the video values of the image in a preselected region with a uniform filter.
摘要翻译：提供一种方法和装置，用于确定用于图像的集成腔效应校正的图像中的像素的加权平均测量反射率参数Rm。对于图像中的每个感兴趣像素P i，j，通过卷积视频来计算在围绕像素p，j的W像素的H像素的区域中的视频值的近似空间依赖平均值Ai，j，Bi，j 在具有均匀滤波器的区域中的图像的值Vi，j。对于感兴趣的每个像素Pi，j，使用卷积步骤的结果作为反射参数Rm。该装置包括用于存储原始扫描图像的像素的视频缓冲器，以及用于存储所计算的近似空间相关平均值Ai，j，Bi，j的第一和第二平均缓冲器。第一和第二级处理电路通过使用均匀的滤波器卷积预选区域中的图像的视频值，分别产生第一和第二平均值Ai，j，Bi，j。

4. 发明授权

US07421143B2 Systems and methods for optimal dynamic range adjustment of scanned images 有权
标题翻译：扫描图像最佳动态范围调整的系统和方法
公开(公告)号：US07421143B2
公开(公告)日：2008-09-02
申请号：US10709832
申请日：2004-06-01
申请人： Xing Li , Stuart A. Schweid , Jeng-nan Shiau
发明人： Xing Li , Stuart A. Schweid , Jeng-nan Shiau
IPC分类号： G06K9/40
CPC分类号： H04N1/40062 , H04N1/4072
摘要： A method for dynamic range adjustment of image data of a captured image by determining a white point of an image. The method also involves determining a black point of the image, classifying pixels of the image, and determining an offset value for a pixel of the image based on the determined black point of the image and the determined classification of the pixel. Dynamic range adjustment of the image data is performed using the determined offset value for the pixels of the image and the determined white point of the image.
摘要翻译：通过确定图像的白点来对拍摄图像的图像数据进行动态范围调整的方法。该方法还包括确定图像的黑点，对图像的像素进行分类，以及基于确定的图像的黑点和所确定的像素的分类来确定图像的像素的偏移值。使用确定的图像的像素的偏移值和确定的图像的白点来执行图像数据的动态范围调整。

5. 发明授权

US06535633B1 Method and apparatus for re-classifying color image pixels classified by single channel segmentation 有权
标题翻译：通过单通道分割重新分类彩色图像像素的方法和装置
公开(公告)号：US06535633B1
公开(公告)日：2003-03-18
申请号：US09405712
申请日：1999-09-24
申请人： Stuart A. Schweid , Jeng-nan Shiau
发明人： Stuart A. Schweid , Jeng-nan Shiau
IPC分类号： G06K900
CPC分类号： H04N1/56 , G06T7/11 , G06T2207/10024 , G06T2207/30176 , H04N1/40062
摘要： A method and apparatus are provided for use in single channel segmentation of color images for reclassifying pixels which were inappropriately classified as belonging to a “black” or “white” class. The apparatus includes a re-classification circuit receiving first classification data generated by a single channel segmentation circuit operative to classify pixels of a multi-color channel input image. The re-classification circuit selectively re-classifies pixels that were previously classified by the single channel segmentation circuit into an “other” segmentation class based on a comparison of classification data associated with the pixels relative to a set of predefined classification data types. Particularly, the re-classification circuit reclassifies selected ones of the pixels into the “other” segmentation class when first classification data generated by the single channel segmentation circuit labels the pixels as a “white” or “black” data type.
摘要翻译：提供了一种用于彩色图像的单通道分割的方法和装置，用于将不适当地归类为属于“黑色”或“白色”类的像素重新分类。该装置包括接收由单通道分割电路生成的第一分类数据的再分类电路，其操作以对多色信道输入图像的像素进行分类。重新分类电路基于与相对于一组预定义分类数据类型的像素相关联的分类数据的比较，有选择地将先前由单个信道分割电路分类的像素重新分类为“其他”分割类别。特别地，当由单个信道分割电路产生的第一分类数据将像素标记为“白色”或“黑色”数据类型时，重新分类电路将所选择的像素重新分类为“其他”分割类别。

6. 发明授权

US5852678A Detection and rendering of text in tinted areas 失效
标题翻译：检测和渲染着色区域中的文本
公开(公告)号：US5852678A
公开(公告)日：1998-12-22
申请号：US655523
申请日：1996-05-30
申请人： Jeng-nan Shiau , Zhigang Fan , Raymond J. Clark
发明人： Jeng-nan Shiau , Zhigang Fan , Raymond J. Clark
IPC分类号： H04N1/40 , G06K9/34
CPC分类号： H04N1/40062
摘要： A method and apparatus improves digital reproduction of a compound document image containing half-tone tint regions and text and/or graphics embedded within the half-tone tint regions. The method entails determining a local average pixel value for each pixel in the image, then discriminating and classifying based on the local average pixel values, text/graphics pixels from half-tone tint pixels. Discrimination can be effected by calculating a range of local averages within a neighborhood surrounding each pixel; by calculating edge gradients based on the local average pixel values; or by approximating second derivatives of the local average pixel values based on the local averages. Text/graphics pixels are rendered using a rendering method appropriate for that type of pixel; half-tone tint pixels are rendered using a rendering method appropriate for that type of pixel.
摘要翻译：一种方法和装置改进了包含半色调色调区域和嵌入在半色调色调区域内的文本和/或图形的复合文档图像的数字再现。该方法需要确定图像中每个像素的局部平均像素值，然后基于局部平均像素值，来自半色调色调像素的文本/图形像素进行鉴别和分类。可以通过计算围绕每个像素的邻域中的局部平均值的范围来实现区分; 通过基于局部平均像素值计算边缘梯度; 或者通过基于局部平均值逼近局部平均像素值的二阶导数。使用适合于该类型的像素的渲染方法来渲染文本/图形像素; 使用适合于该类型的像素的渲染方法来渲染半色调色调像素。

7. 发明授权

US07822290B2 System and method for processing images with leaky windows 失效
标题翻译：用泄漏窗口处理图像的系统和方法
公开(公告)号：US07822290B2
公开(公告)日：2010-10-26
申请号：US11116861
申请日：2005-04-28
申请人： Zhigang Fan , Stuart Schweid , Jeng-nan Shiau
发明人： Zhigang Fan , Stuart Schweid , Jeng-nan Shiau
IPC分类号： G06K9/36 , G09G5/00
CPC分类号： G06K9/00456
摘要： Disclosed is a method and system for processing image data, which may be generated by a scanning subsystem, and the segmentation and treatment of leaky windows or segments within the image. In addition to the identification of window regions or segments having leaky boundaries, the method and system include the subsequent control of enhancement and other image processing techniques applied to such images so as to reduce or eliminate artifacts that result from the processing of leaky window regions.
摘要翻译：公开了一种用于处理可由扫描子系统产生的图像数据的方法和系统，以及图像内泄漏窗口或分段的分割和处理。除了识别具有漏边界的窗口区域或区段之外，该方法和系统包括对这种图像的应用的增强和其他图像处理技术的后续控制，以便减少或消除由于渗漏窗口区域的处理而产生的伪影。

8. 发明申请

US20060245648A1 System and method for processing images with leaky windows 失效
标题翻译：用泄漏窗口处理图像的系统和方法
公开(公告)号：US20060245648A1
公开(公告)日：2006-11-02
申请号：US11116861
申请日：2005-04-28
申请人： Zhigang Fan , Stuart Schweid , Jeng-nan Shiau
发明人： Zhigang Fan , Stuart Schweid , Jeng-nan Shiau
IPC分类号： G06K9/34
CPC分类号： G06K9/00456
摘要： Disclosed is a method and system for processing image data, which may be generated by a scanning subsystem, and the segmentation and treatment of leaky windows or segments within the image. In addition to the identification of window regions or segments having leaky boundaries, the method and system include the subsequent control of enhancement and other image processing techniques applied to such images so as to reduce or eliminate artifacts that result from the processing of leaky window regions.
摘要翻译：公开了一种用于处理可由扫描子系统产生的图像数据的方法和系统，以及图像内泄漏窗口或分段的分割和处理。除了识别具有漏边界的窗口区域或区段之外，该方法和系统包括对这种图像的应用的增强和其他图像处理技术的后续控制，以便减少或消除由于渗漏窗口区域的处理而产生的伪影。

9. 发明授权

US07009739B1 Color to black and white converter 失效
标题翻译：颜色到黑白转换器
公开(公告)号：US07009739B1
公开(公告)日：2006-03-07
申请号：US09699820
申请日：2000-10-30
申请人： Ying-wei Lin , Jeng-nan Shiau
发明人： Ying-wei Lin , Jeng-nan Shiau
IPC分类号： H04N1/46
CPC分类号： H04N1/40012
摘要： A continuously variable screening tool is used to generate a unique texture pattern for every color in a multicolor image. The continuously variable screening tool allows a single colorant version of the image to be generated with less information loss than typically suffered in the multicolor to single color transformation process. The continuously variable screening tool is generated by blending patterns from a set of reference screens. The reference screens are associated with selected reference colors in, for example, a machine independent color space. A calculated screen is generated through a weighted blend of reference screens located near the arbitrary color in the machine independent color space. Typically, the weights depend on the distance the arbitrary color is from each of the reference colors. The screens consist of arrays of threshold values. Each threshold value is associated with a dot position and an image pixel. Where a pixel value exceeds the associated threshold value, provision is made to place a mark in the associated dot position. An image processor operative to carry out the method comprises a continuously variable screening tool generator. An embodiment of the image processor includes a reference screen storage device and a screen blender.
摘要翻译：使用连续可变的筛选工具为多色图像中的每种颜色生成独特的纹理图案。连续可变的筛选工具允许以多色到单色转换过程中通常遭受的信息损失较少的信息生成图像的单一着色剂版本。通过混合来自一组参考屏幕的图案来生成连续可变的筛选工具。参考屏幕与例如机器独立颜色空间中的所选参考颜色相关联。通过在机器独立颜色空间中位于任意颜色附近的参考屏幕的加权混合来生成计算屏幕。通常，权重取决于任意颜色与每个参考颜色的距离。屏幕由阈值阵列组成。每个阈值与点位置和图像像素相关联。如果像素值超过关联的阈值，则提供在相关联的点位置放置标记。可操作地执行该方法的图像处理器包括连续可变的筛选工具发生器。图像处理器的实施例包括参考屏幕存储设备和屏幕搅拌器。

10. 发明授权

US07545540B2 Method and system for processing color image data 有权
标题翻译：彩色图像数据处理方法及系统
公开(公告)号：US07545540B2
公开(公告)日：2009-06-09
申请号：US11155982
申请日：2005-06-17
申请人： Jeng-nan Shiau
发明人： Jeng-nan Shiau
IPC分类号： H04N1/40 , H04N1/46 , H04N1/60
CPC分类号： H04N1/38 , G06K9/38 , G06K2209/01 , H04N1/56
摘要： A system and method remove at least one color from a color image in a chrominance-luminance color space. The processing method includes generating screen values for machine independent color space image pixels, comparing the screen values for the pixels with pixel values for one component of the machine independent color space, and generating a dropout pixel for each pixel having a screen value that is less than the pixel value for the one component of the machine independent color space. The screen value for a pixel may be compared to the pixel value for the luminance component to determine whether to generate a dropout pixel or not.
摘要翻译：系统和方法从色度 - 亮度色彩空间中的彩色图像中移除至少一种颜色。处理方法包括生成机器独立色彩空间图像像素的屏幕值，将像素的屏幕值与机器独立颜色空间的一个分量的像素值进行比较，并且生成具有较小屏幕值的每个像素的压差像素比机器独立颜色空间的一个组件的像素值。可以将像素的屏幕值与亮度分量的像素值进行比较，以确定是否生成丢失像素。

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