公开(公告)号：US5572602A

公开(公告)日：1996-11-05

申请号：US192592

申请日：1994-02-07

申请人： Satoshi Naoi ,  Maki Yabuki ,  Atsuko Asakawa

发明人： Satoshi Naoi ,  Maki Yabuki ,  Atsuko Asakawa

IPC分类号： G06K9/20 ,  G06K9/34 ,  G06K9/36 ,  G06T7/40 ,  H04N1/40

CPC分类号： G06K9/346 ,  G06K2209/01

摘要： In an image extraction system, an extracting part for extracting wide lines, an extracting part for extracting narrow lines and a frame detector detect a frame from a pattern which is extracted by a connected pattern extracting part. An attribute adder adds attributes of a character (graphic and symbol inclusive), frame, and a contact pattern of the character and frame to a partial pattern, and a separating part separates the frame from the contact pattern. An intersection calculator calculates intersections of the character and frame, and the calculated intersections are associated by an intersection associating part. An interpolator obtains a character region within the frame and interpolates this region based on the associated intersections. A connection confirming part confirms a connection of the pattern with respect to the extracted character pattern, and patterns confirmed of their connection are integrated in a connected pattern integrating part to thereby extract the character.

公开(公告)号：US6005976A

公开(公告)日：1999-12-21

申请号：US681979

申请日：1996-07-30

申请人： Satoshi Naoi ,  Maki Yabuki ,  Atsuko Asakawa

发明人： Satoshi Naoi ,  Maki Yabuki ,  Atsuko Asakawa

IPC分类号： G06K9/34 ,  G06K9/46

CPC分类号： G06K9/346 ,  G06K2209/01

摘要： In an image extraction system, an extracting part for extracting wide lines, an extracting part for extracting narrow lines and a frame detector detect a frame from a pattern which is extracted by a connected pattern extracting part. An attribute adder adds attributes of a character (graphic and symbol inclusive), frame, and a contact pattern of the character and frame to a partial pattern, and a separating part separates the frame from the contact pattern. An intersection calculator calculates intersections of the character and frame, and the calculated intersections are associated by an intersection associating part. An interpolator obtains a character region within the frame and interpolates this region based on the associated intersections. A connection confirming part confirms a connection of the pattern with respect to the extracted character pattern, and patterns confirmed of their connection are integrated in a connected pattern integrating part to thereby extract the character.

摘要翻译： 在图像提取系统中，用于提取宽线的提取部分，用于提取窄线的提取部分和帧检测器从由连接的图案提取部分提取的图案检测帧。 属性加法器将字符（包括图形和符号）的帧，帧和字符和帧的接触图案的属性添加到部分图案，并且分离部分将帧与接触图案分开。 交叉点计算器计算字符和帧的相交，并且所计算的交点通过交叉关联部分相关联。 内插器获取帧内的字符区域，并且基于相关联的交点对该区域进行内插。 连接确认部分确认图案相对于提取的字符图案的连接，并且确认其连接的图案被集成在连接的图案集成部分中，从而提取字符。

公开(公告)号：US5907630A

公开(公告)日：1999-05-25

申请号：US697501

申请日：1996-08-26

申请人： Satoshi Naoi ,  Atsuko Asakawa ,  Maki Yabuki ,  Yoshinobu Hotta

发明人： Satoshi Naoi ,  Atsuko Asakawa ,  Maki Yabuki ,  Yoshinobu Hotta

IPC分类号： G06K9/34 ,  G06F9/34 ,  G06K9/20 ,  G06K9/32

CPC分类号： G06K9/32 ,  G06K9/346 ,  G06K2209/01

摘要： An image extraction system includes a connected pattern extracting part for extracting partial patterns respectively having connected pixels from an image which is formed by a block frame having a table format and including one-character frames or a free format frame, characters, graphics or symbols, a one-character frame extracting part for extracting one-character frames from the image based on the partial patterns extracted by the connected pattern extracting part, a straight line extracting part for extracting straight lines from the partial patterns which are extracted by the connected pattern extracting part and is eliminated of the one-character frames by the one-character frame extracting part, a frame detecting part for detecting straight lines forming the frame from the straight lines extracted by the straight line extracting part, and a frame separating part for separating the straight lines detected by the frame detecting part from the partial patterns so as to extract the characters, graphics or symbols.

摘要翻译： 图像提取系统包括连接图案提取部分，用于从由具有表格格式并包括单字符或无格式的帧，字符，图形或符号的块帧形成的图像中提取分别具有连接像素的部分图案， 基于由连接的图案提取部提取的部分图案从图像中提取一个字符的帧的单字符提取部分，用于从通过连接的图案提取提取的部分图案中提取直线的直线提取部分 通过单字符提取部分去除一个字符的帧，用于检测从由直线提取部分提取的直线形成帧的直线的帧检测部分，以及用于分离 由帧检测部分从部分图案检测到的直线以便提取 字符，图形或符号。

公开(公告)号：US6052480A

公开(公告)日：2000-04-18

申请号：US228139

申请日：1999-01-11

申请人： Maki Yabuki ,  Satoshi Naoi

发明人： Maki Yabuki ,  Satoshi Naoi

IPC分类号： G06K9/20 ,  G06K9/34 ,  G06K9/80 ,  G06T7/40

CPC分类号： G06K9/346 ,  G06K2209/01

摘要： A character box extracting unit extracts a line forming a character box. Then, the character box intersection calculating unit calculates the intersection of the character box with a character pattern. An intersection corresponding unit associates intersections with each other based on the directional property of character lines, distance between the character lines, etc. An in-box character extracting unit extracts a virtual image according to the association information between the intersections. A character size evaluating unit obtains from an optional character string an average character size of a character including the virtual image, and extracts a true character pattern by removing a redundant virtual image based on the average character size. A character structure analyzing and evaluating unit obtains from a prepared table a true image corresponding to the virtual image and extracts a true character pattern, thereby correctly extracting the pattern from the image in which the line crosses the pattern.11

摘要翻译： 字符盒提取单元提取形成字符框的行。 然后，字符框交点计算单元计算字符框与字符模式的交集。 交叉对应单元基于字符行的方向属性，字符行之间的距离等将交点相互关联。盒内字符提取单元根据交叉点之间的关联信息提取虚拟图像。 字符尺寸评估单元从可选字符串获得包括虚拟图像的字符的平均字符大小，并且通过基于平均字符大小去除冗余虚拟图像来提取真实字符图案。 字符结构分析和评估单元从准备好的表中获取与虚拟图像相对应的真实图像，并提取真实的字符图案，从而从图形中正确地提取图案。

公开(公告)号：US5889887A

公开(公告)日：1999-03-30

申请号：US609280

申请日：1996-03-01

申请人： Maki Yabuki ,  Satoshi Naoi

发明人： Maki Yabuki ,  Satoshi Naoi

IPC分类号： G06K9/20 ,  G06K9/34 ,  G06K9/80 ,  G06T7/40 ,  G06K9/36

CPC分类号： G06K9/346 ,  G06K2209/01

摘要： A character box extracting unit extracts a line forming a character box. Then, the character box intersection calculating unit calculates the intersection of the character box with a character pattern. An intersection corresponding unit associates intersections with each other based on the directional property of character lines, distance between the character lines, etc. An in-box character extracting unit extracts a virtual image according to the association information between the intersections. A character size evaluating unit obtains from an optional character string an average character size of a character including the virtual image, and extracts a true character pattern by removing a redundant virtual image based on the average character size. A character structure analyzing and evaluating unit obtains from a prepared table a true image corresponding to the virtual image and extracts a true character pattern, thereby correctly extracting the pattern from the image in which the line crosses the pattern.

摘要翻译： 字符盒提取单元提取形成字符框的行。 然后，字符框交点计算单元计算字符框与字符模式的交集。 交叉对应单元基于字符行的方向属性，字符行之间的距离等将交点相互关联。盒内字符提取单元根据交叉点之间的关联信息提取虚拟图像。 字符尺寸评估单元从可选字符串获得包括虚拟图像的字符的平均字符大小，并且通过基于平均字符大小去除冗余虚拟图像来提取真实字符图案。 字符结构分析和评估单元从准备的表获得与虚拟图像相对应的真实图像，并提取真实的字符图案，从而从线穿过图案的图像正确地提取图案。

公开(公告)号：US09077926B2

公开(公告)日：2015-07-07

申请号：US13490841

申请日：2012-06-07

申请人： Yuan He ,  Jun Sun ,  Hao Yu ,  Satoshi Naoi

发明人： Yuan He ,  Jun Sun ,  Hao Yu ,  Satoshi Naoi

IPC分类号： G06K9/48 ,  H04N1/387

CPC分类号： H04N1/387

摘要： An image processing method includes estimating corners of a contour of an object area in an obtained image, searching for contour lines of the object area between every two points which are offset from the estimated corners within a predetermined degree or distance along a direction away from the object area respectively, and determining intersection points of the contour lines as final corners of the contour of the object area, and determining contour lines between the final corners as a final contour of the object area.

摘要翻译： 一种图像处理方法，包括估计所获得的图像中的对象区域的轮廓的角，在沿着远离所述图像的方向的预定角度或距离内的估计角落偏移的每两个点之间搜索对象区域的轮廓线 并且将轮廓线的交点确定为对象区域的轮廓的最终角，并且确定最终角之间的轮廓线作为对象区域的最终轮廓。

公开(公告)号：US20130022272A1

公开(公告)日：2013-01-24

申请号：US13526938

申请日：2012-06-19

申请人： Jun Sun ,  Satoshi Naoi

发明人： Jun Sun ,  Satoshi Naoi

IPC分类号： G06K9/18

CPC分类号： G06K9/3208 ,  G06F17/275 ,  G06K9/344 ,  G06K2209/01

摘要： The present embodiments disclose a method of and a device for identifying the direction of characters in an image block. The method includes: performing optical character recognition processing on the image block by assuming various directions as assumed character directions, respectively, to obtain sub image blocks, recognized characters corresponding to the sub image blocks and correctness measures thereof in each of the assumed character directions; determining a language group to which the characters in the image block belong; adjusting a correctness measure corresponding to a sub image block which corresponds to a recognized character not belonging to the determined language group in each of the assumed character directions; calculating an accumulative correctness measure in each of the assumed character directions based on the adjusted correctness measure; and identifying the direction of the characters in the image block according to the accumulative correctness measures.

摘要翻译： 本实施例公开了一种用于识别图像块中的字符的方向的方法和装置。 该方法包括：通过假设各个方向作为假定的字符方向，分别对图像块执行光学字符识别处理，以获得子图像块，对应于子图像块的识别字符及其在每个假定字符方向上的正确性度量; 确定图像块中的字符属于的语言组; 在每个假定的字符方向上调整对应于对应于不属于所确定的语言组的识别字符的子图像块的正确性度量; 基于所调整的正确性度量，计算每个假设字符方向中的累积正确性度量; 并根据累积的正确性度量来识别图像块中的字符的方向。

公开(公告)号：US07903874B2

公开(公告)日：2011-03-08

申请号：US11894188

申请日：2007-08-20

申请人： Katsuhito Fujimoto ,  Misako Suwa ,  Hiroaki Takebe ,  Satoshi Naoi

发明人： Katsuhito Fujimoto ,  Misako Suwa ,  Hiroaki Takebe ,  Satoshi Naoi

IPC分类号： G06K9/34

CPC分类号： G06K9/2027 ,  G06K9/2036 ,  G06K9/3283

摘要： A set of straight lines that associate a top parallel geodesic projection positioned at an upper end with a bottom parallel geodesic projection positioned at a lower end, among sets of parallel geodesic projections, is extracted as a set of ruled-line candidate projections as a search target of a set of ruled line projections. A deviation of neighborhood, which is a distance between a cross ratio vector of the ruled-line candidate projection and a cross ratio vector of a neighboring line obtained by shifting the ruled-line candidate projection by a predetermined interval, is calculated for each ruled-line candidate projection. A set of straight lines having the smallest sum total of deviations of neighborhood, in the set of straight lines, which do not intersect with each other, among the sets of ruled-line projection candidates is extracted as a set of ruled line projections by continuous dynamic programming.

摘要翻译： 将位于上端的顶部平行测地线突起与位于下方的平行测地线投影的底部平行测地线投影相关联的一组直线作为一组划线候选投影提取为搜索 一套规则线的预测目标。 对于每个被划线的候选投影，通过将划线候选投影移动预定间隔而获得的相邻行的交叉比矢量之间的距离为邻域的偏差， 线候选投影。 一组直线投影候选之间的直线投影的组合，在一组直线上彼此不相交的相邻偏差的总和最小的一组直线被提取为一组连续的线条投影 动态规划。

公开(公告)号：US07641475B2

公开(公告)日：2010-01-05

申请号：US11313962

申请日：2005-12-22

申请人： Yutaka Katsuyama ,  Noriaki Ozawa ,  Satoshi Naoi

发明人： Yutaka Katsuyama ,  Noriaki Ozawa ,  Satoshi Naoi

IPC分类号： G09B3/00

CPC分类号： G09B5/067 ,  G09B7/02

摘要： A pointing information extraction unit extracts pointing information indicating a pointing position and a pointing time on a slide from a slide file used in a lecture and a video file of a lecture video using a pointing device. A word information generation unit analyzes a text sentence extracted from the slide file to generate a word information file indicating a word and a position thereof. A word pointing information generation unit estimates a word closest to the pointing position on the slide to generate a word pointing information file with the pointing time assigned. A fill-in-the-blank word extraction unit extracts a word having a pointing time equal to or longer than a predetermined time from the word pointing information as a fill-in-the-blank word file. A fill-in-the-blank test question is generated by setting the fill-in-the-blank word of the slide information as a blank region.

摘要翻译： 指示信息提取单元使用指示装置从用于演讲的幻灯片文件和演讲视频的视频文件中提取指示幻灯片上的指示位置和指向时间的指示信息。 字信息生成单元分析从幻灯片文件提取的文本句子，生成表示单词和位置的单词信息文件。 词指向信息生成单元估计最靠近幻灯片上的指向位置的单词以生成指定时间指定的词指向信息文件。 填写空白字提取单元从作为填充空白字文件的字指向信息中提取具有等于或长于预定时间的指向时间的字。 通过将幻灯片信息的填空字设置为空白区域来生成空白填写测试问题。

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。