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：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。

公开(公告)号：US07142716B2

公开(公告)日：2006-11-28

申请号：US09949891

申请日：2001-09-12

申请人： Yutaka Katsuyama ,  Satoshi Naoi ,  Fumihito Nishino

发明人： Yutaka Katsuyama ,  Satoshi Naoi ,  Fumihito Nishino

IPC分类号： G06K9/72

CPC分类号： G06K9/03 ,  Y10S707/99933 ,  Y10S707/99936

摘要： A document image search apparatus generates a text by performing the character recognition of a document image and determines a re-process scope. Then, the apparatus generates a candidate character lattice from the re-recognition result of the re-process scope, generates character strings from the candidate character lattice and adds the character strings to the text. Then, the apparatus performs index search using the text with the character strings added.

公开(公告)号：US20060062460A1

公开(公告)日：2006-03-23

申请号：US11199993

申请日：2005-08-10

申请人： Sun Jun ,  Yutaka Katsuyama ,  Satoshi Naoi

发明人： Sun Jun ,  Yutaka Katsuyama ,  Satoshi Naoi

IPC分类号： G06K9/18

CPC分类号： G06K9/325 ,  G06K2209/01

摘要： Character recognition apparatus and method for recognizing characters in an image, of which the character recognition apparatus comprises a text line extraction unit for extracting a plurality of text lines from an input image, a feature recognition unit for recognizing one or more features of each of the text lines, a synthetic pattern generation unit for generating synthetic character images for each of the text lines by using the features recognized by the feature recognition unit and the original character images, a synthetic dictionary generation unit for generating a synthetic dictionary for each of the text lines by using the synthetic character images, and a text line recognition unit for recognizing characters in each of the text lines by using the synthetic dictionary.

摘要翻译： 用于识别图像中的字符的字符识别装置和方法，其中字符识别装置包括用于从输入图像中提取多条文本行的文本行提取单元，用于识别每一个的一个或多个特征的特征识别单元 文本行，合成图案生成单元，用于通过使用由特征识别单元识别的特征和原始字符图像来生成每个文本行的合成人物图像;合成词典生成单元，用于为每个文本生成合成词典 通过使用合成字符图像的行，以及用于通过使用合成字典来识别每个文本行中的字符的文本行识别单元。

公开(公告)号：US06081618A

公开(公告)日：2000-06-27

申请号：US959712

申请日：1997-10-28

申请人： Satoshi Naoi ,  Hideki Yanagishita

发明人： Satoshi Naoi ,  Hideki Yanagishita

IPC分类号： G06K9/00 ,  G06K9/46 ,  G06T5/00 ,  G06T7/00

CPC分类号： G06K9/4638 ,  G06T7/0081 ,  G06K2209/01 ,  G06T2207/10008 ,  G06T2207/30176

摘要： The connected element extraction device stores a binary image signal as binary image data; calculates a rectangle circumscribing a connected element; determines whether the rectangle overlaps with others and stores the label and coordinates of an overlapping rectangle; generates a label image of the overlapping rectangle; based on the label image, divides the overlapping rectangle as a parent rectangle into child rectangles and repeatedly subdivides the child-rectangle into final child rectangles which respectively have a single label; and outputs information comprising the binary image data, and the coordinates of the non-overlapping rectangle, parent-rectangle and final child-rectangles.

摘要翻译： 连接元件提取装置将二进制图像信号存储为二进制图像数据; 计算围绕连接元素的矩形; 确定矩形与其他矩形是否重叠，并存储重叠矩形的标签和坐标; 生成重叠矩形的标签图像; 基于标签图像，将重叠矩形作为父矩形划分为子矩形，并将子矩形重新细分为分别具有单个标签的最终子矩形; 并输出包括二进制图像数据的信息，以及非重叠矩形，父矩形和最终子矩形的坐标。

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：US08805080B2

公开(公告)日：2014-08-12

申请号：US13472790

申请日：2012-05-16

申请人： Jun Sun ,  Satoshi Naoi

发明人： Jun Sun ,  Satoshi Naoi

IPC分类号： G06K9/62

CPC分类号： G06K9/3208 ,  G06K9/342 ,  G06K2209/01

摘要： The present embodiments disclose a method of and 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 to obtain sub image blocks, recognized characters corresponding to the sub image blocks and correctness measures thereof in each assumed character directions; in sub image blocks in the assumed character directions with 180° mutual relation, searching for a minimum matching pair of the sub image blocks; adjusting the sub image blocks in the searched minimum matching pair to eliminate the effect, on an identification result, of different numbers of sub image blocks in various assumed character directions; calculating an accumulative correctness measure in each assumed character directions based on the adjusted sub image blocks; and identifying the direction of characters in the image block according to the accumulative correctness measures.

摘要翻译： 本实施例公开了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：通过假定各个方向作为假定的字符方向，对每个假定的字符方向进行图像块的识别处理，对应于子图像块的识别字符及其正确性度量，对图像块执行光学字符识别处理; 在具有180°相互关系的假定字符方向的子图像块中，搜索子图像块的最小匹配对; 调整搜索到的最小匹配对中的子图像块以消除识别结果对各种假定字符方向的不同数量的子图像块的影响; 基于经调整的子图像块计算每个假设字符方向上的累积正确性度量; 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：US08717632B2

公开(公告)日：2014-05-06

申请号：US13471977

申请日：2012-05-15

申请人： Danian Zheng ,  Jun Sun ,  Satoshi Naoi

发明人： Danian Zheng ,  Jun Sun ,  Satoshi Naoi

IPC分类号： G06T5/00 ,  H04N1/407 ,  H04N1/409

CPC分类号： H04N1/387 ,  G06K9/3275 ,  G06K2009/363 ,  G06T3/0031

摘要： An image processing method generally includes: obtaining a vanishing point on a curved surface in a two-dimension image; extracting all the straight line segments between a top contour line and a bottom contour line of the curved surface by the vanishing point; removing a perspective distortion to get parallel straight line segments; obtaining the lengths of the straight line segments, obtaining the true width of each of the straight line segments in a three-dimension space and the depth increment of the straight line segments according to the lengths; obtaining the expanded width of each straight line segment according to the true width and the depth increment; obtaining the total expanded width of the curved surface to transform it into a flat surface; transforming image contents on the curved surface onto the flat surface.

摘要翻译： 图像处理方法通常包括：在二维图像中的曲面上获得消失点; 通过消失点提取弯曲表面的顶部轮廓线和底部轮廓线之间的所有直线段; 去除透视失真以获得平行的直线段; 获得直线段的长度，根据长度获得三维空间中每个直线段的真实宽度和直线段的深度增量; 根据真实宽度和深度增量获得每条直线段的扩展宽度; 获得弯曲表面的总扩展宽度以将其变形成平坦表面; 将曲面上的图像内容转换成平面。

公开(公告)号：US08478045B2

公开(公告)日：2013-07-02

申请号：US13156688

申请日：2011-06-09

申请人： Jun Sun ,  Hao Yu ,  Satoshi Naoi

发明人： Jun Sun ,  Hao Yu ,  Satoshi Naoi

IPC分类号： G06K9/00

CPC分类号： G06K9/6814 ,  G06K9/6224

摘要： Method and apparatus for processing an image including a character are disclosed. The method may include: searching in a set of characters one or more characters having highest similarities of shape to a character in the set of characters, hereinafter the character being referred to as a first character, the one or more searched characters forming a similar character list of the first character; searching in the set of characters one or more characters having highest similarities of shape to each character in the similar character list of the first character, to form a similar character list of each character in the similar character list of the first character; and selecting in the similar character lists one or more characters having a high mutual similarity between each other, as a character cluster.

摘要翻译： 公开了用于处理包括字符的图像的方法和装置。 该方法可以包括：在一组字符中搜索具有与该组文字中的字符具有最高相似度的一个或多个字符，此后字符被称为第一个字符，该一个或多个搜索到的字符形成相似的字符 第一个字符的列表; 在所述一组字符中搜索与所述第一字符的相似字符列表中的每个字符具有最高相似度形状的一个或多个字符，以形成所述第一字符的相似字符列表中每个字符的相似字符列表; 并且在相似的字符中选择一个或多个彼此之间具有高相互相似性的字符作为字符簇。