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。

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。

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。

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

IPC分类号： G06K9/20 ,  G06K9/32 ,  G06K9/34 ,  G06K9/36

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。

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。

公开(公告)号：US20120288203A1

公开(公告)日：2012-11-15

申请号：US13466538

申请日：2012-05-08

申请人： Yifeng PAN ,  Jun Sun ,  Yuanping Zhu ,  Pan Pan ,  Yuan He ,  Satoshi Naoi

发明人： Yifeng PAN ,  Jun Sun ,  Yuanping Zhu ,  Pan Pan ,  Yuan He ,  Satoshi Naoi

IPC分类号： G06K9/46

CPC分类号： G06K9/2054 ,  G06F16/5846 ,  G06K2209/01

摘要： Locating text areas in an image and recognizing text contents in the text areas through optical character recognition, OCR; selecting a first class of pending keywords from the recognized text contents to search for webpages; extracting a second class of pending keywords from the retrieved webpages; and determining one or more keywords corresponding to the image from at least the second class of pending keywords. With the embodiment, both OCR and webpage searching can be combined so that the webpages can be retrieved based upon the first class of pending keywords recognized and selected through OCR to ensure convergence of the keywords and then the second class of pending keywords can be selected from the retrieved webpages to ensure correctness of the keywords.

摘要翻译： 在图像中定位文本区域，并通过光学字符识别OCR识别文本区域中的文本内容; 从识别的文本内容中选择一类待处理的关键字来搜索网页; 从检索的网页中提取第二类待处理的关键字; 以及从至少所述第二类未决关键字确定与所述图像相对应的一个或多个关键字。 利用该实施例，可以组合OCR和网页搜索，使得可以基于通过OCR识别和选择的第一类未决关键字来检索网页，以确保关键字的收敛，然后可以从第 检索的网页以确保关键字的正确性。

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。