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11. 发明授权

US06393150B1 Region-based image binarization system 有权
标题翻译：基于区域的图像二值化系统
公开(公告)号：US06393150B1
公开(公告)日：2002-05-21
申请号：US09205948
申请日：1998-12-04
申请人： Yongchun Lee , Peter Rudak
发明人： Yongchun Lee , Peter Rudak
IPC分类号： G06K934
CPC分类号： G06K9/38 , G06K2209/01 , H04N1/40062
摘要： A region-based binarization system applies adaptive thresholding and image rendering to a gray scale image to generate first and second binary images. The gray scale image can also be subsampled to acquire a low resolution image and locations of photographic images are detected in the low resolution image. Further, photographic images of the detected photographic images which have a rectangular shape are identified and a classification map which distinguishes pixels in the rectangular shaped photographic images from remaining pixels is generated. A final binary image can then be formed from the first and second binary images based on the classification map. The binarization system of the present invention is effective when the gray scale image is captured from a document which contains at least both photographic and text portions.
摘要翻译：基于区域的二值化系统将自适应阈值和图像渲染应用于灰度图像以产生第一和第二二进制图像。灰度图像也可以被二次采样以获得低分辨率图像，并且在低分辨率图像中检测摄影图像的位置。此外，识别检测到的具有矩形形状的摄影图像的摄影图像，并且生成将矩形摄影图像中的像素与剩余像素区分开的分类图。然后可以基于分类图从第一和第二二进制图像形成最终的二进制图像。当从包含至少两个照相和文本部分的文档捕获灰度图像时，本发明的二值化系统是有效的。

12. 发明授权

US5014329A Automatic detection and selection of a drop-out color using zone calibration in conjunction with optical character recognition of preprinted forms 失效
标题翻译：使用区域校准自动检测和选择辍学颜色，并结合预印表格的光学字符识别
公开(公告)号：US5014329A
公开(公告)日：1991-05-07
申请号：US557291
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 based on sampling a color from a selected calibration zone or patch. Using a three-color electronic scanner, the filtering parameters are adjusted based on the detected color in the zone of the form being processed.
摘要翻译：一种方法和装置，用于通过基于从所选择的校准区域或贴片中取样颜色自动检测和选择辍学颜色来将文本信息与先前打印的材料分离在表格上。使用三色电子扫描仪，根据被处理形式的区域中检测到的颜色调整过滤参数。

13. 发明授权

US4974260A Apparatus for identifying and correcting unrecognizable characters in optical character recognition machines 失效
标题翻译：用于识别和校正光学字符识别机器中无法识别的字符的装置
公开(公告)号：US4974260A
公开(公告)日：1990-11-27
申请号：US360565
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： An apparatus 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：用于识别不能被机器读取的字符的装置，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。

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