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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.
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2.发明授权Program, method and apparatus for generating fill-in-the-blank test questions 有权用于生成空白测试题目的程序，方法和设备公开(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
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。
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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
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。
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4.发明申请Character recognition apparatus and method for recognizing characters in an image 审中-公开用于识别图像中的字符的字符识别装置和方法公开(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。
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公开(公告)号：US07929765B2
公开(公告)日：2011-04-19
申请号：US12778336
申请日：2010-05-12
申请人： Jun Sun , Yutaka Katsuyama , Satoshi Naoi
发明人： Jun Sun , Yutaka Katsuyama , Satoshi Naoi
IPC分类号： G06K9/18
CPC分类号： G06K9/3266 , G06K2209/01
摘要： Video frames that contain text areas are selected from given video frames by removing redundant frames and non-text frames, the text areas in the selected frames are located by removing false strokes, and text lines in the text areas are extracted and binarized.
摘要翻译： 通过删除冗余帧和非文本帧，从给定的视频帧中选择包含文本区域的视频帧，通过删除假笔划来选择所选帧中的文本区域，文本区域中的文本行被提取和二值化。
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公开(公告)号：US20100220930A1
公开(公告)日：2010-09-02
申请号：US12778336
申请日：2010-05-12
申请人： Jun Sun , Yutaka Katsuyama , Satoshi Naoi
发明人： Jun Sun , Yutaka Katsuyama , Satoshi Naoi
IPC分类号： G06K9/46
CPC分类号： G06K9/3266 , G06K2209/01
摘要： Video frames that contain text areas are selected from given video frames by removing redundant frames and non-text frames, the text areas in the selected frames are located by removing false strokes, and text lines in the text areas are extracted and binarized.
摘要翻译： 通过删除冗余帧和非文本帧，从给定的视频帧中选择包含文本区域的视频帧，通过删除假笔划来选择所选帧中的文本区域，文本区域中的文本行被提取和二值化。
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公开(公告)号：US07787705B2
公开(公告)日：2010-08-31
申请号：US10737209
申请日：2003-12-17
申请人： Jun Sun , Yutaka Katsuyama , Satoshi Naoi
发明人： Jun Sun , Yutaka Katsuyama , Satoshi Naoi
IPC分类号： G06K9/38
CPC分类号： G06K9/3266 , G06K2209/01
摘要： Video frames that contain text areas are selected from given video frames by removing redundant frames and non-text frames, the text areas in the selected frames are located by removing false strokes, and text lines in the text areas are extracted and binarized.
摘要翻译： 通过删除冗余帧和非文本帧，从给定的视频帧中选择包含文本区域的视频帧，通过删除假笔划来选择所选帧中的文本区域，文本区域中的文本行被提取和二值化。
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8.发明授权Apparatus and method for allowing images to correspond to each other and program therefor 有权允许图像彼此对应并对其进行编程的装置和方法公开(公告)号：US07397954B2
公开(公告)日：2008-07-08
申请号：US10336763
申请日：2003-01-06
申请人： Yutaka Katsuyama , Hiroaki Takebe , Noriaki Ozawa , Satoshi Naoi
发明人： Yutaka Katsuyama , Hiroaki Takebe , Noriaki Ozawa , Satoshi Naoi
IPC分类号： G06K9/48
CPC分类号： G06K9/00442 , G06F17/30247 , G09B5/00
摘要： The present invention as disclosed hereby is to provide an apparatus and method for allowing images to correspond to each other and a program therefore to automatically perform or make synchronous correspondence of images. According to the apparatus on the condition that there are OHP files and a moving image photographing a lecture or the like using such OHP files, resemblances between the OHP files and OHP image regions of frame images constituting the moving image is calculated such that the correspondence processing between the OHP files and the frame images can be performed based on the calculated resemblances.
摘要翻译： 所公开的本发明是提供一种用于允许图像彼此对应的装置和方法，并且因此提供一种程序来自动执行或使图像的同步对应。 根据该装置，在使用这样的OHP文件存在OHP文件和摄影讲座等的条件下，计算构成运动图像的帧图像的OHP文件和OHP图像区域之间的相似性，使得对应处理 可以基于所计算的相似度来执行OHP文件和帧图像之间的图像。
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公开(公告)号：US20060056697A1
公开(公告)日：2006-03-16
申请号：US11200202
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： G06K9/036 , G06K9/3266 , G06K9/6255 , G06K2209/01
摘要： A method and apparatus for generating a degraded character image at various levels of degradation automatically is presented in this invention. The method comprises rendering the character image on a scene plane; translating and rotating the scene plane according to various parameters; determining a projection region of the character image on an image plane according to various parameters; generating a pixel region mask; and generating a final degraded image by super-sampling. Thus various degraded character images are generated on various conditions of degradation. The generated synthetic characters can be used for performance evaluation and training data augmentation in optical character recognition (OCR).
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公开(公告)号：US20050201619A1
公开(公告)日：2005-09-15
申请号：US10737209
申请日：2003-12-17
申请人： Jun Sun , Yutaka Katsuyama , Satoshi Naoi
发明人： Jun Sun , Yutaka Katsuyama , Satoshi Naoi
CPC分类号： G06K9/3266 , G06K2209/01
摘要： Video frames that contain text areas are selected from given video frames by removing redundant frames and non-text frames, the text areas in the selected frames are located by removing false strokes, and text lines in the text areas are extracted and binarized.
摘要翻译： 通过删除冗余帧和非文本帧，从给定的视频帧中选择包含文本区域的视频帧，通过删除假笔划来选择所选帧中的文本区域，文本区域中的文本行被提取和二值化。
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