公开(公告)号：US07532756B2

公开(公告)日：2009-05-12

申请号：US11329407

申请日：2006-01-11

申请人： Sun Jun ,  Yoshinobu Hotta ,  Yutaka Katsuyama ,  Satoshi Naoi

发明人： Sun Jun ,  Yoshinobu Hotta ,  Yutaka Katsuyama ,  Satoshi Naoi

IPC分类号： G06K9/18 ,  G06K9/62 ,  G06K9/34

CPC分类号： G06K9/6857 ,  G06K9/6255 ,  G06K2209/01

摘要： A grayscale character dictionary generation apparatus, comprising a first synthetic grayscale degraded character image generation unit for generating first synthetic grayscale degraded character images using binary character images inputted therein; a clustering unit for dividing each category of the first synthetic grayscale degraded character images generated by the first synthetic grayscale degraded character image generation unit into a plurality of clusters; a template generation unit for generating template for each of the clusters; a transformation matrix generation unit for generating transformation matrix in relation to each of the templates; and a second synthetic grayscale degraded character dictionary generation unit for obtaining character feature of every grayscale degraded character of each of the clusters using the transformation matrix, and for constructing eigenspace of each category of the synthetic grayscale degraded character, which is the second synthetic grayscale character dictionary.

摘要翻译： 一种灰度字符字典生成装置，包括：第一合成灰度级退化字符图像生成单元，用于使用输入的二进制字符图像生成第一合成灰度级退化字符图像; 聚类单元，用于将由第一合成灰度级降级字符图像生成单元生成的第一合成灰阶降级字符图像的每个类别划分为多个聚类; 用于为每个簇生成模板的模板生成单元; 变换矩阵生成单元，用于生成关于每个模板的变换矩阵; 以及第二合成灰阶降级字符字典生成单元，用于使用所述变换矩阵来获得每个所述聚类的每个灰度级退化特征的特征，并且用于构建作为所述第二合成灰度字符的所述合成灰度级退化字符的每个类别的本征空间 字典。

公开(公告)号：US06335986B1

公开(公告)日：2002-01-01

申请号：US09363020

申请日：1999-07-29

申请人： Satoshi Naoi ,  Misako Suwa ,  Yoshinobu Hotta

发明人： Satoshi Naoi ,  Misako Suwa ,  Yoshinobu Hotta

IPC分类号： G06K946

CPC分类号： G06K9/00463 ,  G06K9/6807

摘要： An environment recognizing unit extracts the first through N-th states from an input image and calls data corresponding to the first through N-th states from the first through N-th pattern recognizing units to perform a recognizing unit.

摘要翻译： 环境识别单元从输入图像中提取第一至第N状态，并从第一至第N图形识别单元调用与第一至第N状态对应的数据，以执行识别单元。

公开(公告)号：US20080069447A1

公开(公告)日：2008-03-20

申请号：US11654180

申请日：2007-01-16

申请人： Yoshinobu Hotta ,  Katsuhito Fujimoto ,  Satoshi Naoi

发明人： Yoshinobu Hotta ,  Katsuhito Fujimoto ,  Satoshi Naoi

IPC分类号： G06K9/18

CPC分类号： G06K9/346 ,  G06K2209/01

摘要： Upon receiving, for example, document data including a character string from outside, a character recognition device detects a line from a line-touching character-string image in which at least one character (such as number, alphabet letter, kana character, and Chinese character) touches (or overlaps) a line in the document data, tentatively removes the line, and estimates a character region. The character recognition device extracts a line-touching character image from the line-touching character-string image (original image) based on the estimated character region. The character recognition device creates a line-added reference character image by adding a quasi-line to a reference character image stored in advance.

摘要翻译： 例如，在从外部接收到包括字符串的文档数据的情况下，字符识别装置从至少一个字符（例如号码，字母，假名字符和中文）的线条触摸字符串图像中检测线 字符）触摸（或重叠）文档数据中的一行，暂时删除该行，并估计字符区域。 字符识别装置基于估计的字符区域从线条触摸字符串图像（原始图像）中提取线条触摸字符图像。 字符识别装置通过向预先存储的参考字符图像添加准行来创建线条添加的参考文字图像。

公开(公告)号：US20120163708A1

公开(公告)日：2012-06-28

申请号：US13335077

申请日：2011-12-22

申请人： Wei FAN ,  Akihiro Minagawa ,  Jun Sun ,  Yoshinobu Hotta ,  Satoshi Naoi

发明人： Wei FAN ,  Akihiro Minagawa ,  Jun Sun ,  Yoshinobu Hotta ,  Satoshi Naoi

IPC分类号： G06K9/62

CPC分类号： G06K9/56 ,  G06K9/4642 ,  G06K9/6231 ,  G06K2009/4666

摘要： There provides an apparatus for and a method of generating a classifier for detecting a specific object in an image. The apparatus for generating a classifier for detecting a specific object in an image includes: a region dividing section for dividing, from a sample image, at least one square region having a side length equal to or shorter than the length of shorter side of the sample image; a feature extracting section for extracting an image feature from at least a part of the square regions divided by the region dividing section; and a training section for performing training based on the extracted image feature to generate a classifier. By using the apparatus for and method of generating the classifier, it becomes possible to make full use of recognizable regions of objects to be recognized with variable aspect ratios and improve speed and accuracy for recognizing in complex backgrounds.

摘要翻译： 提供了一种用于生成用于检测图像中的特定对象的分类器的装置和方法。 用于产生用于检测图像中的特定物体的分类器的装置包括：区域分割部分，用于从样本图像中分离至少一个方边区域，其具有等于或短于样本的短边长度的边长 图片; 特征提取部分，用于从由所述区域划分部分划分的所述正方形区域的至少一部分中提取图像特征; 以及训练部，用于基于所提取的图像特征进行训练以生成分类器。 通过使用生成分类器的装置和方法，可以充分利用被识别的可识别区域的可变长宽比，并提高用于在复杂背景中识别的速度和精度。

公开(公告)号：US07136526B2

公开(公告)日：2006-11-14

申请号：US10020249

申请日：2001-12-18

申请人： Yoshinobu Hotta ,  Katsuhito Fujimoto ,  Satoshi Naoi ,  Misako Suwa

发明人： Yoshinobu Hotta ,  Katsuhito Fujimoto ,  Satoshi Naoi ,  Misako Suwa

IPC分类号： G06K9/00 ,  G06K9/18

CPC分类号： G06K9/2054 ,  G06K2209/01

摘要： A key word is first and automatically extracted from a character string group to be recognized, and entered. Then, a character is recognized by segmenting an individual character from a character string image to be recognized, and a character string corresponding to the extracted/entered key word id extracted. Then, a word area delimited by a key word is extracted from the character string image, and a word is recognized. Furthermore, a word recognition result is verified, and a final character string recognition result is output.

公开(公告)号：US06104833A

公开(公告)日：2000-08-15

申请号：US778621

申请日：1997-01-03

申请人： Satoshi Naoi ,  Misako Suwa ,  Yoshinobu Hotta

发明人： Satoshi Naoi ,  Misako Suwa ,  Yoshinobu Hotta

IPC分类号： G06K9/20 ,  G06K9/68 ,  G06K9/46

CPC分类号： G06K9/00463 ,  G06K9/6807

摘要： An environment recognizing unit extracts the first through N-th states from an input image and calls data corresponding to the first through N-th states from the first through N-th pattern recognizing units to perform a recognizing unit.

公开(公告)号：US20120045129A1

公开(公告)日：2012-02-23

申请号：US13067247

申请日：2011-05-18

申请人： Jun Sun ,  Yoshinobu Hotta ,  Hao Yu ,  Satoshi Naoi

发明人： Jun Sun ,  Yoshinobu Hotta ,  Hao Yu ,  Satoshi Naoi

IPC分类号： G06K9/34

CPC分类号： G06K9/3283 ,  G06K9/00456 ,  G06K9/00463

摘要： A method for processing a document image includes: performing horizontal and vertical text line extraction on the document image; providing an overlapping matrix, a value of an element of the overlapping matrix indicating an overlapping relation between horizontal and vertical text lines; merging the overlapping matrix in the vertical and horizontal direction; determining one or more text overlapping regions in the document image, based on the values of the elements of the merged overlapping matrix; counting the total number of strokes or pixel points in the horizontal and vertical text lines, respectively, within one of the one or more text overlapping regions; and determining an orientation of the text overlapping region is horizontal if the total number of strokes or pixel points in the horizontal text lines is larger than that in the vertical text lines, otherwise, determining the orientation is vertical.

摘要翻译： 一种用于处理文档图像的方法包括：在文档图像上执行水平和垂直文本行提取; 提供重叠矩阵，所述重叠矩阵的元素的值指示水平和垂直文本行之间的重叠关系; 在垂直和水平方向上合并重叠矩阵; 基于所述合并的重叠矩阵的元素的值来确定所述文档图像中的一个或多个文本重叠区域; 在一个或多个文本重叠区域之一内分别计算水平和垂直文本行中的笔画或像素点的总数; 并且如果水平文本行中的笔画或像素点的总数大于垂直文本行中的大小，则确定文本重叠区域的取向是水平的，否则确定方向是垂直的。

公开(公告)号：US20060245650A1

公开(公告)日：2006-11-02

申请号：US11356449

申请日：2006-02-17

申请人： Sun Jun ,  Yoshinobu Hotta ,  Yutaka Katsuyama ,  Satoshi Naoi

发明人： Sun Jun ,  Yoshinobu Hotta ,  Yutaka Katsuyama ,  Satoshi Naoi

IPC分类号： G06K9/34

CPC分类号： G06K9/346 ,  G06K9/00463 ,  G06K2209/01

摘要： Precise grayscale character segmentation apparatus and method. The precise grayscale character segmentation apparatus comprises an adjustment and segmentation unit for adjusting and segmenting an inputted low resolution text line image undergone coarse segmentation, so as to generate an adjusted character image; a character image binarization unit for generating a binary character image from the character image inputted therein; a noise removal unit for removing noise information in the binary character image generated by the binarization unit; and a final character image segmentation unit for generating a precisely segmented character image from the binary character image from which noise has been removed.

摘要翻译： 精确的灰度字符分割装置和方法。 精确的灰度字符分割装置包括调整和分割单元，用于调整和分割经粗分割的输入低分辨率文本行图像，以便产生经调整的字符图像; 字符图像二值化单元，用于从输入的字符图像生成二进制字符图像; 噪声去除单元，用于去除由二值化单元生成的二进制字符图像中的噪声信息; 以及最终字符图像分割单元，用于从已经去除噪声的二进制字符图像生成精确分割的字符图像。

公开(公告)号：US20060171589A1

公开(公告)日：2006-08-03

申请号：US11329407

申请日：2006-01-11

申请人： Sun Jun ,  Yoshinobu Hotta ,  Yutaka Katsuyama ,  Satoshi Naoi

发明人： Sun Jun ,  Yoshinobu Hotta ,  Yutaka Katsuyama ,  Satoshi Naoi

IPC分类号： G06K9/34 ,  G06K9/18

CPC分类号： G06K9/6857 ,  G06K9/6255 ,  G06K2209/01

摘要： A grayscale character dictionary generation apparatus, comprising a first synthetic grayscale degraded character image generation unit for generating first synthetic grayscale degraded character images using binary character images inputted therein; a clustering unit for dividing each category of the first synthetic grayscale degraded character images generated by the first synthetic grayscale degraded character image generation unit into a plurality of clusters; a template generation unit for generating template for each of the clusters; a transformation matrix generation unit for generating transformation matrix in relation to each of the templates; and a second synthetic grayscale degraded character dictionary generation unit for obtaining character feature of every grayscale degraded character of each of the clusters using the transformation matrix, and for constructing eigenspace of each category of the synthetic grayscale degraded character, which is the second synthetic grayscale character dictionary.

公开(公告)号：US06850645B2

公开(公告)日：2005-02-01

申请号：US10000525

申请日：2001-12-04

申请人： Satoshi Naoi ,  Misako Suwa ,  Yoshinobu Hotta

发明人： Satoshi Naoi ,  Misako Suwa ,  Yoshinobu Hotta

IPC分类号： G06K9/20 ,  G06K9/68 ,  G06K9/46

CPC分类号： G06K9/00463 ,  G06K9/6807

摘要： A pattern recognizing apparatus having a character extractor that extracts a character from an input image, a non-character extractor that extracts a non-character from an input image, a character recognizer that recognizes a character, a non-character recognizer that recognizes a non-character and an environment recognizer that instructs the character recognizer to perform a recognition process when the character extractor extracts a character, and that instructs the non-character recognizer to perform a recognition process when the non-character recognizer extracts a non-character.

摘要翻译： 具有从输入图像提取字符的字符提取器的图案识别装置，从输入图像提取非字符的非字符提取器，识别字符的字符识别器，识别非字符的非字符识别器， 字符和环境识别器，当字符提取器提取字符时，指示字符识别器执行识别处理，并且当非字符识别器提取非字符时，指示非字符识别器执行识别处理。