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1. 发明授权

US06347156B1 Device, method and storage medium for recognizing a document image 有权
标题翻译：用于识别文档图像的设备，方法和存储介质
公开(公告)号：US06347156B1
公开(公告)日：2002-02-12
申请号：US09216712
申请日：1998-12-21
申请人： Hiroshi Kamada , Katsuhito Fujimoto
发明人： Hiroshi Kamada , Katsuhito Fujimoto
IPC分类号： G06K900
CPC分类号： H04N1/40068 , G06K9/38 , G06K2209/01 , H04N1/40012
摘要： A color image input from a document image inputting unit is converted into a gray-scale image by a brightness image extracting unit. The gray-scale image is then converted into an image having a higher resolution according to the resolution of the original gray-scale image. When this conversion is performed, subpixels are generated between the original pixels, and the values of the subpixels are obtained with an interpolation method. Furthermore, a threshold value for a binarization process is generated by using an original pixel value and a subpixel value. The characters included in the binarized image are recognized by a binary image recognizing unit, and a recognition result is output from a recognition result outputting unit.
摘要翻译：从文件图像输入单元输入的彩色图像由亮度图像提取单元转换成灰度图像。然后根据原始灰度图像的分辨率将灰度图像转换成具有更高分辨率的图像。当执行该转换时，在原始像素之间产生子像素，并且通过插值方法获得子像素的值。此外，通过使用原始像素值和子像素值来生成二值化处理的阈值。由二进制图像识别单元识别二值化图像中包含的字符，并从识别结果输出单元输出识别结果。

2. 发明授权

US06332046B1 Document image recognition apparatus and computer-readable storage medium storing document image recognition program 有权
标题翻译：文件图像识别装置和存储文件图像识别程序的计算机可读存储介质
公开(公告)号：US06332046B1
公开(公告)日：2001-12-18
申请号：US09193868
申请日：1998-11-18
申请人： Katsuhito Fujimoto , Hiroshi Kamada , Koji Kurokawa
发明人： Katsuhito Fujimoto , Hiroshi Kamada , Koji Kurokawa
IPC分类号： G06K936
CPC分类号： G06K9/3283 , G06K9/00463 , G06K2209/01
摘要： A document image tilt detection unit extracts a set of elements forming a character from a document image, extracts candidates for horizontal and vertical lines based on the character elements, estimates the reliability of each candidate for a line, and extracts a set of probable lines. Then, it estimates the tilt of the document image based on the arrangement of the character elements belonging to the line elements in the set of probable lines. A layout analysis unit extracts a set of lines in a fixed line direction from a set of basic elements forming the document image, and reciprocally performs the extraction of a column based on the correlation between lines and the extraction of a line based on the restrictions of the column. By providing the document image tilt detection unit and the layout analysis unit, the tilt of the document image containing both vertical and horizontal character lines can be detected, and lines and columns can be extracted at a high speed with high precision.
摘要翻译：文档图像倾斜检测单元从文档图像中提取形成字符的一组元素，基于字符元素提取水平和垂直行的候选，估计每行候选人的可靠性，并提取一组可能的行。然后，它基于属于可能线组中的线元素的字符元素的排列来估计文档图像的倾斜度。布局分析单元从形成文档图像的基本元素的集合中提取固定线方向的一组线，并且基于线间的相关性和基于线的提取而相互进行列的提取列。通过提供文件图像倾斜检测单元和布局分析单元，可以检测包含垂直和水平字符行两者的文档图像的倾斜，并且可以高精度高速提取行和列。

3. 发明授权

US06701015B2 Character string extraction apparatus and method based on basic component in document image 失效
标题翻译：基于文档图像中基本组件的字符串提取装置和方法
公开(公告)号：US06701015B2
公开(公告)日：2004-03-02
申请号：US09960978
申请日：2001-09-25
申请人： Katsuhito Fujimoto , Hiroshi Kamada
发明人： Katsuhito Fujimoto , Hiroshi Kamada
IPC分类号： G06F948
CPC分类号： G06K9/00463
摘要： A character string extraction apparatus extracts an aggregate of basic components from a document image, such as a binary image, gray scale image, color image, etc., and judges whether each basic component is a character component using an inclusion relationship between the basic components. Then, the character string extraction apparatus extracts an aggregate of character components based on the judgment result and extracts a character string from the aggregate of character components.
摘要翻译：字符串提取装置从诸如二进制图像，灰度图像，彩色图像等的文档图像中提取基本组分的聚合，并且使用基本组件之间的包含关系来判断每个基本组件是否是字符组件。然后，字符串提取装置基于判断结果提取字符分量的聚合，并从字符分量的集合中提取字符串。

4. 发明授权

US06539115B2 Pattern recognition device for performing classification using a candidate table and method thereof 失效
标题翻译：用于使用候选表进行分类的模式识别装置及其方法
公开(公告)号：US06539115B2
公开(公告)日：2003-03-25
申请号：US08922549
申请日：1997-09-03
申请人： Katsuhito Fujimoto , Hiroshi Kamada
发明人： Katsuhito Fujimoto , Hiroshi Kamada
IPC分类号： G06K962
CPC分类号： G06K9/6857
摘要： The value of a reference feature vector calculated from a feature vector of an input pattern is transformed into a candidate category set, by a mapping described in a candidate table. Then, pattern recognition is performed using the candidate category set. By suitably setting the mapping, a high-speed process is performed while maintaining a recognition accuracy.
摘要翻译：通过候选表中描述的映射将从输入模式的特征向量计算出的参考特征向量的值变换为候选类别集合。然后，使用候选类别集执行模式识别。通过适当地设置映射，在保持识别精度的同时执行高速处理。

5. 发明授权

US5920644A Apparatus and method of recognizing pattern through feature selection by projecting feature vector on partial eigenspace 失效
标题翻译：通过在局部特征空间上投影特征向量通过特征选择来识别图案的装置和方法
公开(公告)号：US5920644A
公开(公告)日：1999-07-06
申请号：US801806
申请日：1997-02-14
申请人： Katsuhito Fujimoto , Hiroshi Kamada
发明人： Katsuhito Fujimoto , Hiroshi Kamada
IPC分类号： G06K9/62 , G06K9/64 , G06K9/66
CPC分类号： G06K9/6232
摘要： A feature extracting unit extracts an input feature vector from an input character pattern. A learning unit computes orthonormal bases of a partial eigenspace of an original feature space from learning feature vectors of a plurality of learning character patterns, and stores the computation results in an orthonormal base storage unit for the partial eigenspace. The learning unit computes each of the dictionary selection feature vectors prescribed in the partial eigenspace corresponding to each of the object character patterns, and stores the computation results in a recognition dictionary unit. A feature selection unit computes an input selection feature vector obtained by projecting an input selection feature vector extracted by the feature extracting unit on the partial eigenspace using the above described orthonormal bases. A collating unit estimates a type of the input character pattern by collating the above described input selection feature vector with each of the dictionary selection feature vectors.
摘要翻译：特征提取单元从输入字符图案中提取输入特征向量。学习单元从多个学习字符模式的学习特征向量计算原始特征空间的局部本征空间的正交基，并将计算结果存储在用于部分本征空间的正交基本存储单元中。学习单元计算与每个对象字符模式相对应的部分本征空间中规定的每个字典选择特征向量，并将计算结果存储在识别字典单元中。特征选择单元计算通过使用上述正交基底将由特征提取单元提取的输入选择特征向量投影到部分本征空间上而获得的输入选择特征向量。对照单元通过将上述输入选择特征向量与每个字典选择特征向量进行对照来估计输入字符图案的类型。

6. 发明授权

US07024043B1 Color document image recognizing apparatus 失效
标题翻译：彩色文件图像识别装置
公开(公告)号：US07024043B1
公开(公告)日：2006-04-04
申请号：US09372037
申请日：1999-08-11
申请人： Katsuhito Fujimoto , Hiroshi Kamada
发明人： Katsuhito Fujimoto , Hiroshi Kamada
IPC分类号： G06K15/00 , G06K9/36 , G06K9/00
CPC分类号： G06K9/38 , G06K2209/01
摘要： After a gray scale image extracting unit converts an input document image to a gray scale image, a multi-code image binary-coding unit converts the image to a binary image having a value in which each pixel indicates either a background area or a plotting area in the image, and outputs the binary image to a binary image recognizing unit. In the multi-code binary-coding unit, a partial area extracting unit extracts one or more partial areas in the gray scale image. A partial image binary-coding unit executes a binary-coding process for each of the partial areas in the gray scale image. A binary image combining unit combines one or more partial binary images and constitutes a binary image of the entire gray scale image.
摘要翻译：在灰度图像提取单元将输入文档图像转换为灰度图像之后，多码图像二进制编码单元将图像转换为具有每个像素指示背景区域或绘制区域的值的二值图像并且将二值图像输出到二进制图像识别单元。在多码二进制编码单元中，部分区域提取单元提取灰度图像中的一个或多个部分区域。部分图像二进制编码单元对灰度图像中的每个部分区域执行二进制编码处理。二进制图像组合单元组合一个或多个部分二进制图像并构成整个灰度图像的二进制图像。

7. 发明授权

US06577763B2 Document image recognition apparatus and computer-readable storage medium storing document image recognition program 失效
公开(公告)号：US06577763B2
公开(公告)日：2003-06-10
申请号：US09944412
申请日：2001-09-04
申请人： Katsuhito Fujimoto , Hiroshi Kamada , Koji Kurokawa
发明人： Katsuhito Fujimoto , Hiroshi Kamada , Koji Kurokawa
IPC分类号： G06K948
CPC分类号： G06K9/3283 , G06K9/00463 , G06K2209/01
摘要： A document image tilt detection unit extracts a set of elements forming a character from a document image, extracts candidates for horizontal and vertical lines based on the character elements, estimates the reliability of each candidate for a line, and extracts a set of probable lines. Then, it estimates the tilt of the document image based on the arrangement of the character elements belonging to the line elements in the set of probable lines. A layout analysis unit extracts a set of lines in a fixed line direction from a set of basic elements forming the document image, and reciprocally performs the extraction of a column based on the correlation between lines and the extraction of a line based on the restrictions of the column. By providing the document image tilt detection unit and the layout analysis unit, the tilt of the document image containing both vertical and horizontal character lines can be detected, and lines and columns can be extracted at a high speed with high precision.

8. 发明授权

US06466694B2 Document image processing device and method thereof 失效
标题翻译：文件图像处理装置及其方法
公开(公告)号：US06466694B2
公开(公告)日：2002-10-15
申请号：US09060712
申请日：1998-04-16
申请人： Hiroshi Kamada , Katsuhito Fujimoto , Koji Kurokawa
发明人： Hiroshi Kamada , Katsuhito Fujimoto , Koji Kurokawa
IPC分类号： G06K900
CPC分类号： G06K9/00456 , G06K9/033 , Y10S707/99936
摘要： A processing device performs region identification of an input image, and then performs an intra-region recognition process. The type code of each region and the individual code of a recognition result are then displayed, so that a user can modify both of the results of the region identification and the recognition process at one time. Furthermore, the processing device displays an original image close to the recognition result. If no correct answer exists among recognition candidates, code is added to the original image, and the original image with the code added is handled as a recognition result.
摘要翻译：处理装置执行输入图像的区域识别，然后进行区域内识别处理。然后显示每个区域的类型代码和识别结果的各个代码，使得用户可以一次修改区域标识和识别过程的两个结果。此外，处理装置显示接近识别结果的原始图像。如果识别候选者中没有正确的答案，则将代码添加到原始图像，并且将具有添加的代码的原始图像作为识别结果进行处理。

9. 发明授权

US08652726B2 Toner for developing electrostatic image, method of producing toner, cartridge, image forming method, and image forming apparatus 有权
标题翻译：用于显影静电图像的调色剂，调色剂的制造方法，盒，成像方法和图像形成装置
公开(公告)号：US08652726B2
公开(公告)日：2014-02-18
申请号：US13235041
申请日：2011-09-16
申请人： Asafumi Fujita , Hirokazu Hamano , Tetsuya Taguchi , Hiroshi Kamada , Masahiro Takagi
发明人： Asafumi Fujita , Hirokazu Hamano , Tetsuya Taguchi , Hiroshi Kamada , Masahiro Takagi
IPC分类号： G03G9/00
CPC分类号： G03G9/0815 , G03G9/0825 , G03G9/09708 , G03G9/09725
摘要： A toner for developing an electrostatic image, includes: colored particles containing a colorant and a binder resin, and two or more kinds of inorganic particles that are externally added to a surface of the colored particles, in which the two or more kinds of inorganic particles contain titanium-containing particles and silica-containing particles, an exposure ratio of the surface of the colored particles is about 25% or less, and a ratio of the silica-containing particles that are in contact with the colored particles is about 10% by number or less.
摘要翻译：用于显影静电图像的调色剂包括：含有着色剂和粘合剂树脂的着色颗粒和外部添加到着色颗粒表面的两种或更多种无机颗粒，其中两种或更多种无机颗粒含有含钛颗粒和含二氧化硅的颗粒，着色颗粒的表面的曝光率为约25％以下，与着色颗粒接触的含二氧化硅的颗粒的比例为约10％数字或更少。

10. 发明授权

US06733944B2 Image forming process 有权
标题翻译：图像形成过程
公开(公告)号：US06733944B2
公开(公告)日：2004-05-11
申请号：US10218661
申请日：2002-08-15
申请人： Yasuo Kadokura , Masaaki Suwabe , Shuji Sato , Hiroshi Kamada , Takao Ishiyama
发明人： Yasuo Kadokura , Masaaki Suwabe , Shuji Sato , Hiroshi Kamada , Takao Ishiyama
IPC分类号： G03G1320
CPC分类号： G03G15/20 , G03G9/0825 , G03G9/0827 , G03G9/08782 , G03G15/206 , G03G15/2064
摘要： The present invention provides an image forming process including the steps of: forming a latent image; developing the latent image with a toner to form a toner image; transferring the toner image onto a receiving body; and fixing the toner image to the receiving body, wherein the step of fixing is carried out using a fixing device including a heat-fixing roller, an endless belt, and a pressure member to allow the endless belt to travel around the heat-fixing roller at a given angle such that a nip is produced through which a recording sheet passes, with the pressure member being pressed to distort the heat-resistant elastic layer in the heat-fixing roller, and wherein the toner for developing the electrostatic latent image satisfies predetermined requirements.
摘要翻译：本发明提供一种图像形成方法，包括以下步骤：形成潜像; 用调色剂显影潜像以形成调色剂图像; 将调色剂图像转印到接收体上; 以及将所述调色剂图像定影到所述接收体，其中使用包括定影辊，环形带和压力构件的定影装置进行定影步骤，以允许环形带绕着热定影辊以给定的角度使得产生记录片材通过的辊隙，压力构件被按压以扭曲热定影辊中的耐热弹性层，并且其中用于显影静电潜像的调色剂满足预定的要求。

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