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1. 发明授权

US07440123B2 Adaptive printing 失效
标题翻译：自适应打印
公开(公告)号：US07440123B2
公开(公告)日：2008-10-21
申请号：US11185392
申请日：2005-07-20
申请人： Syam Chodagiri , Nader Anvari , James M. Enge , Jason C. Van Blargan , Peter Rudak
发明人： Syam Chodagiri , Nader Anvari , James M. Enge , Jason C. Van Blargan , Peter Rudak
IPC分类号： G06F15/00 , G06F3/12 , G06K1/00 , G06K15/00
CPC分类号： B41F33/0036 , B41F7/18
摘要： Methods and systems for printing an image on a receiver medium are provided. In accordance with the method, digital image data representing an image to be printed is received and, a print engine is used to print an image on the receiver medium based upon the digital image data and initial printing settings. A press sheet image is captured of the image printed on the receiver medium and, the press sheet image is automatically compared to the digital image data to detect differences. Selected types of differences can be identified or can be addressed by adapting the press sheet image or adjusting digital image data prior to comparison.
摘要翻译：提供了用于在接收介质上打印图像的方法和系统。根据该方法，接收表示要打印的图像的数字图像数据，并且使用打印引擎基于数字图像数据和初始打印设置在接收介质上打印图像。捕获印刷在接收介质上的图像的印张图像，并且自动将印张图像与数字图像数据进行比较以检测差异。可以通过在比较之前调整印刷图像图像或调整数字图像数据来识别或可以解决所选择的差异类型。

2. 发明申请

US20070019216A1 Adaptive printing 失效
标题翻译：自适应打印
公开(公告)号：US20070019216A1
公开(公告)日：2007-01-25
申请号：US11185392
申请日：2005-07-20
申请人： Syam Chodagiri , Nader Anvari , James Enge , Jason Van Blargan , Peter Rudak
发明人： Syam Chodagiri , Nader Anvari , James Enge , Jason Van Blargan , Peter Rudak
IPC分类号： G06F15/00
CPC分类号： B41F33/0036 , B41F7/18
摘要： Methods and systems for printing an image on a receiver medium are provided. In accordance with the method, digital image data representing an image to be printed is received and, a print engine is used to print an image on the receiver medium based upon the digital image data and initial printing settings. A press sheet image is captured of the image printed on the receiver medium and, the press sheet image is automatically compared to the digital image data to detect differences. Selected types of differences can be identified or can be addressed by adapting the press sheet image or adjusting digital image data prior to comparison.
摘要翻译：提供了用于在接收介质上打印图像的方法和系统。根据该方法，接收表示要打印的图像的数字图像数据，并且使用打印引擎基于数字图像数据和初始打印设置在接收介质上打印图像。捕获印刷在接收介质上的图像的印张图像，并且自动将印张图像与数字图像数据进行比较以检测差异。可以通过在比较之前调整印刷图像图像或调整数字图像数据来识别或可以解决所选择的差异类型。

3. 发明授权

US5182778A Dot-matrix video enhancement for optical character recognition 失效
标题翻译： DOT-MATRIX视频增强光学字符识别
公开(公告)号：US5182778A
公开(公告)日：1993-01-26
申请号：US575715
申请日：1990-08-31
申请人： Peter Rudak , George A. Hadgis
发明人： Peter Rudak , George A. Hadgis
IPC分类号： G06K9/36 , G06K9/20 , G06K9/56 , G06T5/20
CPC分类号： G06T5/20 , G06K9/56 , G06K2209/01
摘要： A method and apparatus for eliminating discontinuities inherent to binary digital image data when hard copy text is generated by a dot-matrix printer. An M.times.M matrix is moved over a bit-mapped image of said text one pixel at a time, and for each pixel position, pixels are selectively converted from white to black based on a predetermined set of rules.
摘要翻译：一种用于消除由点阵打印机产生硬拷贝文本时二进制数字图像数据固有的不连续性的方法和装置。 MxM矩阵一次移动到所述文本的位映射图像一个像素上，并且对于每个像素位置，基于预定的规则集，像素被选择性地从白色转换为黑色。

4. 发明授权

US5583659A Multi-windowing technique for thresholding an image using local image properties 失效
标题翻译：使用局部图像属性对图像进行阈值化的多窗口技术
公开(公告)号：US5583659A
公开(公告)日：1996-12-10
申请号：US338051
申请日：1994-11-10
申请人： Yongchun Lee , Joseph M. Basile , Peter Rudak
发明人： Yongchun Lee , Joseph M. Basile , Peter Rudak
IPC分类号： G06K9/40 , G06K9/38 , G06T5/00 , H04N1/403 , H04N1/405 , H04N1/40
CPC分类号： G06K9/38 , G06T7/0081 , G06K2209/01 , G06T2207/10008 , G06T2207/30176
摘要： A technique, specifically apparatus and an accompanying method, for accurately thresholding an image based on local image properties, specifically luminance variations, and particularly such a technique that uses multi-windowing for providing enhanced immunity to image noise and lessened boundary artifacts. Specifically, a localized intensity gradient, G(i,j), is determined for a pre-defined window (300) centered about each image pixel (i, j ) . Localized minimum and maximum pixel intensity measures, L.sub.min and L.sub.max, respectively, are also determined for another, though larger, window (330) centered about pixel (i,j). Also, a localized area gradient measure, GS(i,j), is determined as a sum of individual intensity gradients for a matrix of pixel positions (370) centered about pixel position (i,j). Each image pixel (i,j) is then classified as being an object pixel, i.e., black, or a background pixel, i.e., white, based upon its area gradient, GS (i,j), and associated L.sub.min and L.sub.max measures.
摘要翻译：一种用于基于局部图像特性（特别是亮度变化）精确地阈值化图像的技术，特别是使用多窗口来提供对图像噪声的增强的抗扰性和减少的边界伪影的技术。具体地，针对以每个图像像素（i，j）为中心的预定窗口（300）确定局部强度梯度G（i，j）。对于以像素（i，j）为中心的另一个较大的窗口（330），也分别确定了局部最小和最大像素强度测量值Lmin和Lmax。此外，局部区域梯度测量GS（i，j）被确定为以像素位置（i，j）为中心的像素位置（370）的矩阵的各个强度梯度的和。然后根据其面积梯度GS（i，j）和相关联的Lmin和Lmax度量，将每个图像像素（i，j）分类为对象像素，即黑色或背景像素，即白色。

5. 发明授权

US06317223B1 Image processing system for reducing vertically disposed patterns on images produced by scanning 有权
标题翻译：用于减少由扫描产生的图像上的垂直布置图案的图像处理系统
公开(公告)号：US06317223B1
公开(公告)日：2001-11-13
申请号：US09211600
申请日：1998-12-14
申请人： Peter Rudak , Yongchun Lee , James M. Stefanko
发明人： Peter Rudak , Yongchun Lee , James M. Stefanko
IPC分类号： G06T550
CPC分类号： H04N1/4097
摘要： A digital image processing system applies an edge-based adaptive thresholding technique with different contrast parameters to convert an image into first and second binary images. In the digital processing system of the invention, the first and second binary images are compared and a map of the difference between the first and second binary images is generated. A vertical profile of this map is projected and local peaks in the vertical profile which correspond to a vertical pattern or artifact in the map is detected. Pixels in the first binary image are reversed based on the vertical pattern or artifact in the map. This system is effective in reducing vertical artifacts produced by scanners.
摘要翻译：数字图像处理系统将具有不同对比度参数的基于边缘的自适应阈值技术应用于将图像转换为第一和第二二进制图像。在本发明的数字处理系统中，比较第一和第二二进制图像并生成第一和第二二进制图像之间的差异的映射。投影该地图的垂直剖面，并检测对应于地图中的垂直图案或伪影的垂直剖面中的局部峰值。基于地图中的垂直图案或伪像，第一个二进制图像中的像素被颠倒。该系统有效减少扫描仪产生的垂直伪影。

6. 发明授权

US5014328A Automatic detection and selection of a drop-out color used in conjunction with optical character recognition of preprinted forms 失效
标题翻译：自动检测和选择与预打印格式的光学字符识别结合使用的辍学颜色
公开(公告)号：US5014328A
公开(公告)日：1991-05-07
申请号：US557293
申请日：1990-07-24
申请人： Peter Rudak
发明人： Peter Rudak
IPC分类号： G06K9/20
CPC分类号： G06K9/2018
摘要： A method and apparatus for separating text information from previously printed material on forms by automatically detecting and selecting the drop-out color used on a preprinted form to enhance optical character recognition of information on such forms. Using a 3-color electronic scanner, the system adjusts the filtering parameters automatically based on the form being processed.
摘要翻译：一种用于通过自动检测和选择在预打印形式上使用的辍学颜色以增强对这种形式的信息的光学字符识别的方法和装置，用于将文本信息与之前的打印材料分离在表格上。使用3色电子扫描仪，系统会根据正在处理的形式自动调整过滤参数。

7. 发明授权

US06323956B1 Adaptive quantization of grayscale images 失效
标题翻译：灰度图像的自适应量化
公开(公告)号：US06323956B1
公开(公告)日：2001-11-27
申请号：US08763268
申请日：1996-12-10
申请人： Peter Rudak , Andreas E. Savakis , Yongchun Lee
发明人： Peter Rudak , Andreas E. Savakis , Yongchun Lee
IPC分类号： G06K1500
CPC分类号： H04N1/40087 , G06K2215/0057
摘要： A method of generating an M-bit grayscale image from an N-bit grayscale image, where 1
摘要翻译：一种从N比特灰度图像生成M比特灰度图像的方法，其中1

8. 发明授权

US06282326B1 Artifact removal technique for skew corrected images 有权
标题翻译：用于歪斜校正图像的人造物去除技术
公开(公告)号：US06282326B1
公开(公告)日：2001-08-28
申请号：US09211125
申请日：1998-12-14
申请人： Yongchun Lee , Peter Rudak , Daniel T. Jaramillo
发明人： Yongchun Lee , Peter Rudak , Daniel T. Jaramillo
IPC分类号： G06K936
CPC分类号： H04N1/4097
摘要： A digital image processing method and system is adapted to remove diagonally disposed artifacts such as lines, dots, dashes etc., from a scanned skew corrected document or image. The system and method converts a captured skew corrected image into first and second binary images and generates a map indicative of a difference between the first and second binary images. Black pixels in the map are projected based on a skew angle of the image to form a projection profile, and an image based on the map, detected peaks in the projection profile and the pixels is created.
摘要翻译：数字图像处理方法和系统适于从扫描的扭曲校正的文档或图像中去除对角线放置的伪像，例如线，点，破折号等。系统和方法将捕获的偏斜校正图像转换为第一和第二二进制图像，并且生成指示第一和第二二进制图像之间的差异的映射。基于图像的倾斜角度来投影地图中的黑色像素以形成投影轮廓，并且基于该地图，创建投影轮廓和像素中检测到的峰值的图像。

9. 发明授权

US4914709A Method for identifying unrecognizable characters in optical character recognition machines 失效
标题翻译：用于识别光学字符识别机器中无法识别的字符的方法
公开(公告)号：US4914709A
公开(公告)日：1990-04-03
申请号：US360967
申请日：1989-06-02
申请人： Peter Rudak
发明人： Peter Rudak
IPC分类号： G06K9/03
CPC分类号： G06K9/033
摘要： A method for identifying a character which cannot be machine read so that the operator may observe and hopefully recognize the character in question. A bit-map video image of the unrecognized character(s) is inserted in the ASCII data line of neighboring characters to create an impression of the original line of text from the document. A data entry operator uses this information to enter the required correct character(s) via the keyboard or other means. This reject/reentry method allows for quick operator response, and minimizes data storage and transmission of video information.
摘要翻译：一种用于识别不能被机器读取的字符的方法，以便操作者可以观察并希望识别所讨论的角色。无法识别的字符的位图视频图像被插入到相邻字符的ASCII数据行中，以从文档中创建原始文本行的印象。数据输入操作员使用该信息通过键盘或其他方式输入所需的正确字符。这种拒绝/再入法允许快速的操作者响应，并且最小化视频信息的数据存储和传输。

10. 发明授权

US07027666B2 Method for determining skew angle and location of a document in an over-scanned image 有权
标题翻译：用于确定文档在过扫描图像中的偏斜角度和位置的方法
公开(公告)号：US07027666B2
公开(公告)日：2006-04-11
申请号：US10262049
申请日：2002-10-01
申请人： Peter Rudak , Yongchun Lee , Thomas J. Morgan
发明人： Peter Rudak , Yongchun Lee , Thomas J. Morgan
IPC分类号： G06K9/36
CPC分类号： G06K9/3283 , G06T7/12 , G06T2207/10008 , G06T2207/30176 , H04N1/3878
摘要： A method for determining skew angle (5) and location of a document in an over-scanned digital image is disclosed. A document is scanned to capture a gray scale image. The outline pixel (1) of a document from the captured gray scale image are connected (2). An initial angle is set at zero and a x-minimum, y-minimum, x-maximum, and y-maximum of the polygon are determined (3). A rectangular boundary (4) area based on the x-minimum, y-minimum, x-maximum, and y-maximum is calculated and recorded. The angle is recorded and the polygon is rotated z-degree. The process is repeated and a minimum boundary area is selected. An angle corresponding to the minimum boundary is the skew angle of the document.
摘要翻译：公开了一种用于确定偏转角度（5）和文件在过扫描数字图像中的位置的方法。扫描文档以捕获灰度图像。来自捕获的灰度图像的文档的轮廓像素（1）被连接（2）。将初始角度设置为零，并确定多边形的x最小值，最小值，最小值，最大值和最大值。计算并记录基于x最小值，y最小值，x最大值和y最大值的矩形边界（4）区域。记录角度，并将多边形旋转z度。重复该过程并选择最小边界区域。对应于最小边界的角度是文档的倾斜角度。

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