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1. 发明授权

US09070011B2 Automated segmentation tuner 有权
标题翻译：自动细分调谐器
公开(公告)号：US09070011B2
公开(公告)日：2015-06-30
申请号：US13163524
申请日：2011-06-17
申请人： Fred W. Andree , Thomas A. Schuneman
发明人： Fred W. Andree , Thomas A. Schuneman
IPC分类号： G06K9/34 , G06K9/00 , H04N1/40
CPC分类号： G06K9/00456 , G06K2209/17 , H04N1/40062
摘要： A system, method, and computer program product are provided for automatically segmenting input document images into regions of black text, white space, and image content. A set of scanned training documents representing the range of text and images to be processed is coarsely tagged to classify regions by content type. The training images are divided into bricks, parameters describing individual brick features are evaluated, and the bricks are classified according to the parameter values. A classification map that relates parameter values to classification codes describing content type is constructed by generating linear equations separating a parameter space into parameter regions along classification boundaries. After training, input documents are scanned and divided into bricks, and brick parameters are converted into an index into the classification map, to classify document regions by content.
摘要翻译：提供了一种系统，方法和计算机程序产品，用于将输入文档图像自动分割成黑色文本，白色空间和图像内容的区域。表示要处理的文本和图像的范围的一组扫描的培训文档被粗略地标记以按内容类型对区域进行分类。训练图像分为砖块，描述各砖块特征的参数进行评估，砖块根据参数值进行分类。将参数值与描述内容类型的分类代码相关联的分类图是通过生成沿着分类边界将参数空间分成参数区域的线性方程来构建的。培训后，输入文件被扫描并分为砖块，砖块参数转换为分类图中的索引，按内容对文档区域进行分类。

2. 发明申请

US20110311139A1 AUTOMATED SEGMENTATION TUNER 有权
标题翻译：自动分段调谐器
公开(公告)号：US20110311139A1
公开(公告)日：2011-12-22
申请号：US13163524
申请日：2011-06-17
申请人： Fred W. Andree , Thomas A. Schuneman
发明人： Fred W. Andree , Thomas A. Schuneman
IPC分类号： G06K9/34
CPC分类号： G06K9/00456 , G06K2209/17 , H04N1/40062
摘要： A system, method, and computer program product are provided for automatically segmenting input document images into regions of black text, white space, and image content. A set of scanned training documents representing the range of text and images to be processed is coarsely tagged to classify regions by content type. The training images are divided into bricks, parameters describing individual brick features are evaluated, and the bricks are classified according to the parameter values. A classification map that relates parameter values to classification codes describing content type is constructed by generating linear equations separating a parameter space into parameter regions along classification boundaries. After training, input documents are scanned and divided into bricks, and brick parameters are converted into an index into the classification map, to classify document regions by content.
摘要翻译：提供了一种系统，方法和计算机程序产品，用于将输入文档图像自动分割成黑色文本，白色空间和图像内容的区域。表示要处理的文本和图像的范围的一组扫描的培训文档被粗略地标记以按内容类型对区域进行分类。训练图像分为砖块，描述各砖块特征的参数进行评估，砖块根据参数值进行分类。将参数值与描述内容类型的分类代码相关联的分类图是通过生成沿着分类边界将参数空间分成参数区域的线性方程来构建的。培训后，输入文件被扫描并分为砖块，砖块参数转换为分类图中的索引，按内容对文档区域进行分类。

3. 发明申请

US20090161150A1 LASER COLOR COPY IMAGE PROCESSING INDEPENDENT OF CLASSIFICATIONS 有权
标题翻译：激光复印图像处理独立于分类
公开(公告)号：US20090161150A1
公开(公告)日：2009-06-25
申请号：US12234500
申请日：2008-09-19
申请人： Shenbo Yu , Fred W. Andree , Steven J. Pratt
发明人： Shenbo Yu , Fred W. Andree , Steven J. Pratt
IPC分类号： G06F3/12 , H04N1/409
CPC分类号： G06T5/003 , G06T5/002 , G06T5/20 , G06T2207/20012 , G06T2207/20192 , H04N1/4092
摘要： An apparatus and a method are described for processing and reproducing a document including both text and half-tone images without generating undesirable image artifacts. A band-pass FIR filter with a predetermined frequency response is used to transform pixels in an input image to sharpen text edge and smooth pre-half-toned areas, and perform error diffusion and cluster dot screening methods on the transformed pixels. The FIR filter has unity gain at DC to preserve image brightness. An integrated error diffused cluster-dot screening approach is used to suppress moiré and other image artifacts, while providing a robust, crisp output.
摘要翻译：描述了用于处理和再现包括文本和半色调图像的文档而不产生不期望的图像伪影的装置和方法。使用具有预定频率响应的带通FIR滤波器来转换输入图像中的像素，以锐化文本边缘和平滑的预半色调区域，并对变换的像素执行误差扩散和聚类点筛选方法。 FIR滤波器在DC处具有单位增益以保持图像亮度。集成误差扩散聚类点筛选方法用于抑制莫尔和其他图像伪影，同时提供鲁棒，清晰的输出。

4. 发明授权

US07099049B2 Stochastic screening method with dot pattern regularity control and dot growth 有权
公开(公告)号：US07099049B2
公开(公告)日：2006-08-29
申请号：US10218018
申请日：2002-08-13
申请人： Shenbo Yu , Richard G. Comeau , Craig C. Cook , Fred W. Andree
发明人： Shenbo Yu , Richard G. Comeau , Craig C. Cook , Fred W. Andree
IPC分类号： H04N1/40
CPC分类号： H04N1/4051
摘要： A stochastic screening mask is provided for rendering halftone images. A filter controlled force masking method is used to vary the mask patterns from regularity to randomness. Dot size (amplitude), dot number (frequency), and dot shape are modulated integrally at each gray level during the generation of the mask. The single pixel limit for blue noise masking is broken down by this approach. The halftone patterns generated with this method can have visually pleasing blue noise attribute. This new screening method would provide flexible solutions for different types of printing processes.

5. 发明授权

US08599439B2 Laser color copy image processing independent of classifications 有权
标题翻译：激光彩色复印图像处理独立于分类
公开(公告)号：US08599439B2
公开(公告)日：2013-12-03
申请号：US12234500
申请日：2008-09-19
申请人： Shenbo Yu , Fred W. Andree , Steven J. Pratt
发明人： Shenbo Yu , Fred W. Andree , Steven J. Pratt
IPC分类号： G06F3/12 , H04N1/409
CPC分类号： G06T5/003 , G06T5/002 , G06T5/20 , G06T2207/20012 , G06T2207/20192 , H04N1/4092
摘要： An apparatus and a method are described for processing and reproducing a document including both text and half-tone images without generating undesirable image artifacts. A band-pass FIR filter with a predetermined frequency response is used to transform pixels in an input image to sharpen text edge and smooth pre-half-toned areas, and perform error diffusion and cluster dot screening methods on the transformed pixels. The FIR filter has unity gain at DC to preserve image brightness. An integrated error diffused cluster-dot screening approach is used to suppress moiré and other image artifacts, while providing a robust, crisp output.
摘要翻译：描述了用于处理和再现包括文本和半色调图像的文档而不产生不期望的图像伪影的装置和方法。使用具有预定频率响应的带通FIR滤波器来转换输入图像中的像素，以锐化文本边缘和平滑的预半色调区域，并对变换的像素执行误差扩散和聚类点筛选方法。 FIR滤波器在DC处具有单位增益以保持图像亮度。集成误差扩散聚类点筛选方法用于抑制莫尔和其他图像伪影，同时提供鲁棒，清晰的输出。

6. 发明授权

US07019761B2 Methods for auto-separation of texts and graphics 失效
公开(公告)号：US07019761B2
公开(公告)日：2006-03-28
申请号：US10084626
申请日：2002-02-25
申请人： Kadagattur Srinidhi , Fred W. Andree
发明人： Kadagattur Srinidhi , Fred W. Andree
IPC分类号： G09G5/00
CPC分类号： G06K9/00456
摘要： The present invention is directed to a method of discriminating between textual content and graphical content. The method includes the steps of receiving a plurality of pixel values for a pixel line segment, calculating a plurality of spatial gradients based on the pixel values of adjacent pixels, determining a smoothness index by processing the plurality of spatial gradients, and identifying the pixel line segment as text or graphics by comparing the smoothness index to a threshold value.

7. 发明授权

US06912638B2 System-on-a-chip controller 失效
标题翻译：系统级芯片控制器
公开(公告)号：US06912638B2
公开(公告)日：2005-06-28
申请号：US10185791
申请日：2002-06-28
申请人： Timothy M. Hellman , Neil B. Epstein , Steve J. Pratt , Fred W. Andree , Karl M. Marks , Joerg Landmann , James W. Brissette
发明人： Timothy M. Hellman , Neil B. Epstein , Steve J. Pratt , Fred W. Andree , Karl M. Marks , Joerg Landmann , James W. Brissette
IPC分类号： G06F9/312 , G06F9/318 , G06F9/345 , G06F9/38 , G06F12/00 , G06F13/14 , G06F15/16 , G06F15/78 , G06T1/20
CPC分类号： G06F9/30185 , G06F9/30043 , G06F9/3017 , G06F9/30181 , G06F9/345 , G06F9/3824 , G06F9/3853 , G06F9/3885 , G06F15/7864 , G06T1/20
摘要： A system-on-a-chip controller having a first processor and a second processor. The first processor provides control processing and image processing. The second processor provides image processing. The processors receive data from an external source through a data bus. Also, the controller can include a third controller to provide I/O functionality to an external device. The second processor processes the stored data in either a row or column configuration. A fixed-length instruction word can be decoded into two instructions, an operation instruction and an I/O instruction, and can be used to process the data. The I/O instruction can be disposed in an unused bit field of the operation instruction.
摘要翻译：一种具有第一处理器和第二处理器的片上系统控制器。第一个处理器提供控制处理和图像处理。第二处理器提供图像处理。处理器通过数据总线从外部源接收数据。此外，控制器可以包括第三控制器以向外部设备提供I / O功能。第二个处理器以行或列配置处理存储的数据。固定长度指令字可以被解码为两个指令，一个操作指令和一个I / O指令，并且可以用于处理数据。 I / O指令可以设置在操作指令的未使用位字段中。

8. 发明授权

US06433891B1 Stochastic screening method with dot pattern regularity control and dot growth 有权
标题翻译：随机筛选方法用点图案规律性控制和点生长
公开(公告)号：US06433891B1
公开(公告)日：2002-08-13
申请号：US09211698
申请日：1998-12-14
申请人： Shenbo Yu , Richard G. Comeau , Craig C. Cook , Fred W. Andree
发明人： Shenbo Yu , Richard G. Comeau , Craig C. Cook , Fred W. Andree
IPC分类号： H04N140
CPC分类号： H04N1/4051
摘要： A stochastic screening mask is provided for rendering halftone images. A filter controlled force masking method is used to vary the mask patterns from regularity to randomness. Dot size (amplitude), dot number (frequency), and dot shape are modulated integrally at each gray level during the generation of the mask. The single pixel limit for blue noise making is broken down by this approach. The halftone patterns generated with this method can have visually pleasing blue noise attribute. This new screening method would provide flexible solutions for different types of printing processes.
摘要翻译：提供了随机屏蔽掩模，用于渲染半色调图像。滤波器控制力屏蔽方法用于将掩模图案从规则性改变为随机性。在生成掩模期间，在每个灰度级，一起调制点尺寸（振幅），点数（频率）和点形状。蓝色噪声制作的单个像素限制由此方法分解。使用此方法生成的半色调图案可以具有令人满意的蓝色噪声属性。这种新的筛选方法将为不同类型的印刷工艺提供灵活的解决方案。

9. 发明授权

US5867632A System and method for providing glossy compression and contone/bitonal image conversion 失效
标题翻译：用于提供有损压缩和连续/双色图像转换的系统和方法
公开(公告)号：US5867632A
公开(公告)日：1999-02-02
申请号：US745024
申请日：1996-11-07
申请人： Fred W. Andree , Geoffrey A. Dreher
发明人： Fred W. Andree , Geoffrey A. Dreher
IPC分类号： H04N1/40 , H04N1/405 , H04N1/52 , G06K15/00
CPC分类号： H04N1/4057 , H04N1/40075 , H04N1/52
摘要： A printing system and method performs lossy compression on a bitonal image when the printing system runs out of available memory for processing a page. The lossy compression is performed by dividing the image into subregions and by then determining a contone value for each subregion. Next, each contone value is converted to a bitonal value (i.e. either a "1" or a "0") to achieve lossy compression. In converting the contone values to bitonal values, the system determines the error associated with each conversion and diffuses the error to adjacent subregions using a random perturbation technique to determine the proportion of the error to diffuse to each subregion. When compressing color images, contone values are determined for each color plane. A relative color ordering of each contone value is also stored and used in converting the contone values to bitonal values in order to solve phasing and color alignment problems which would otherwise arise.
摘要翻译：当打印系统耗尽用于处理页面的可用存储器时，打印系统和方法对双色图像执行有损压缩。通过将图像划分成子区域，然后确定每个子区域的连续色调值来执行有损压缩。接下来，将每个连字符值转换成双向值（即，“1”或“0”）以实现有损压缩。在将连续失真值转换为比特值时，系统确定与每个转换相关的误差，并使用随机扰动技术将误差扩散到相邻子区域，以确定扩散到每个子区域的误差的比例。当压缩彩色图像时，为每个颜色平面确定连续色调值。每个连续色调值的相对颜色排序也被存储并用于将连续色调值转换为比特值，以便解决否则将出现的相位和颜色对准问题。

10. 发明授权

US06771275B1 Processing system and method using a multi-dimensional look-up table 有权
标题翻译：使用多维查找表的处理系统和方法
公开(公告)号：US06771275B1
公开(公告)日：2004-08-03
申请号：US09589935
申请日：2000-06-07
申请人： Craig C. Cook , Steven J. Pratt , Fred W. Andree
发明人： Craig C. Cook , Steven J. Pratt , Fred W. Andree
IPC分类号： G09G502
CPC分类号： H04N1/6019
摘要： A signal conversion system parses a multi-dimensional input signal into most-significant and least-significant portions. The most-significant portions are used as an index to a look-up-table. Stored in each entry of the look-up-table is a base value and multi-dimensional differential values. The system generates an output representation of the signal by combining the corresponding base value with interpolated differences determined by interpolation performed using the differential values and the least-significant portions. Interpolation error is decreased by storing intermediate differential values. Output processing is used for linearization.
摘要翻译：信号转换系统将多维输入信号解析成最重要和最不重要的部分。最重要的部分用作查找表的索引。存储在查询表的每个条目中是一个基值和多维差分值。该系统通过将对应的基本值与使用差分值和最低有效部分执行的插值确定的内插差异组合来生成信号的输出表示。通过存储中间差分值来减少插值误差。输出处理用于线性化。

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