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1. 发明授权

US09202282B2 Boundary extraction method and apparatus 有权
标题翻译：边界提取方法和装置
公开(公告)号：US09202282B2
公开(公告)日：2015-12-01
申请号：US13906001
申请日：2013-05-30
申请人： FUJITSU LIMITED
发明人： Yuan He , Jun Sun , Satoshi Naoi
IPC分类号： G06T7/00 , G06T5/00 , G06T5/20
CPC分类号： G06T7/0085 , G06T5/003 , G06T5/20 , G06T7/12 , G06T7/181 , G06T2207/10008 , G06T2207/20192 , G06T2207/30176
摘要： The present invention discloses a boundary extraction method and apparatus, the method including: a gradient estimation step of estimating a gradient of each pixel in a captured image; a gradient adjustment step of adjusting, by enhancing a gradient of a target boundary of an object contained in the captured image and weakening a gradient of a noise boundary, the estimated gradient, so that the adjusted gradient is considered as a current gradient; and a boundary extraction step of extracting a boundary of the object based on the current gradient. According to the embodiments of the invention, in a case of using a non-contact imaging device to capture an image, it is possible to more accurately extract a boundary of an object contained in the captured image.
摘要翻译：本发明公开了一种边界提取方法和装置，该方法包括：估计拍摄图像中每个像素的梯度的梯度估计步骤; 梯度调整步骤，通过增强包含在所捕获的图像中的对象的目标边界的梯度并减弱噪声边界的梯度来估计所述估计的梯度，从而将所述调整的梯度视为当前梯度; 以及边界提取步骤，基于当前梯度提取对象的边界。根据本发明的实施例，在使用非接触式成像装置拍摄图像的情况下，可以更准确地提取包含在拍摄图像中的对象的边界。

2. 发明申请

US20130330009A1 APPARATUS, METHOD FOR EXTRACTING BOUNDARY OF OBJECT IN IMAGE, AND ELECTRONIC DEVICE THEREOF 有权
标题翻译：装置，提取图像中对象边界的方法及其电子装置
公开(公告)号：US20130330009A1
公开(公告)日：2013-12-12
申请号：US13912805
申请日：2013-06-07
申请人： FUJITSU LIMITED
发明人： Pan PAN , Yuan He , Jun Sun , Satoshi Naoi
IPC分类号： G06T7/00
CPC分类号： G06T7/0085 , G06T7/12
摘要： The invention provides an apparatus and method for extracting a boundary of an object in an image and an electronic device. The apparatus includes: a position determining unit, configured to determine a start point and an end point of a boundary of an object in an image and to determine a position of a reference point relevant to the start point and the end point; a first direction determining unit, configured to determine a first direction of the boundary; a gradient map obtaining unit, configured to obtain a gradient map of a first region; a gradient attenuating unit, configured to attenuate in the gradient map the gradients of a second region; and an extracting unit, configured to extract a boundary of an object. The technology of the invention can improve the accuracy of boundary extracting, and can be applied in the field of image processing.
摘要翻译：本发明提供一种用于提取图像和电子设备中的对象的边界的装置和方法。该装置包括：位置确定单元，被配置为确定图像中的对象的边界的起始点和终点，并确定与开始点和终点相关的参考点的位置; 第一方向确定单元，被配置为确定所述边界的第一方向; 梯度图获取单元，被配置为获得第一区域的梯度图; 梯度衰减单元，被配置为在梯度图中衰减映射第二区域的梯度; 以及提取单元，被配置为提取对象的边界。本发明的技术可以提高边界提取的准确性，可以应用于图像处理领域。

3. 发明授权

US09202260B2 Method and apparatus for processing scanned image 有权
标题翻译：用于处理扫描图像的方法和装置
公开(公告)号：US09202260B2
公开(公告)日：2015-12-01
申请号：US13862935
申请日：2013-04-15
申请人： FUJITSU LIMITED
发明人： Yuan He , Jun Sun , Satoshi Naoi
IPC分类号： G06T5/00
CPC分类号： G06T5/001 , G06T5/005 , G06T2207/10008 , G06T2207/30176
摘要： The present invention relates to a method and apparatus for processing a scanned image. The method for processing a scanned image comprises: a shaded region extracting step of extracting a region, which is shaded by a shading object and lies in a margin in the vicinity of an edge of the scanned image, as a shaded region and a pixel value repairing step of repairing values of pixels, which lie both in a line segment and the shaded region, by using a linear model according to known values of pixels, which lie both in the line segment and the margin, the line segment passing through the shaded region and being parallel to the edge.
摘要翻译：本发明涉及一种用于处理扫描图像的方法和装置。用于处理扫描图像的方法包括：阴影区域提取步骤，提取被遮蔽对象遮蔽并位于扫描图像的边缘附近的边缘的区域作为阴影区域和像素值通过使用线性模型根据已知的位于线段和边缘的像素值来修复位于线段和阴影区域中的像素的值的修复步骤，线段通过阴影线区域并且平行于边缘。

4. 发明授权

US09292931B2 Apparatus, method for extracting boundary of object in image, and electronic device thereof 有权
标题翻译：用于提取图像中物体边界的装置，方法及其电子装置
公开(公告)号：US09292931B2
公开(公告)日：2016-03-22
申请号：US13912805
申请日：2013-06-07
申请人： FUJITSU LIMITED
发明人： Pan Pan , Yuan He , Jun Sun , Satoshi Naoi
IPC分类号： G06T7/00
CPC分类号： G06T7/0085 , G06T7/12
摘要： The invention provides an apparatus and method for extracting a boundary of an object in an image and an electronic device. The apparatus includes: a position determining unit, configured to determine a start point and an end point of a boundary of an object in an image and to determine a position of a reference point relevant to the start point and the end point; a first direction determining unit, configured to determine a first direction of the boundary; a gradient map obtaining unit, configured to obtain a gradient map of a first region; a gradient attenuating unit, configured to attenuate in the gradient map the gradients of a second region; and an extracting unit, configured to extract a boundary of an object. The technology of the invention can improve the accuracy of boundary extracting, and can be applied in the field of image processing.
摘要翻译：本发明提供一种用于提取图像和电子设备中的对象的边界的装置和方法。该装置包括：位置确定单元，被配置为确定图像中的对象的边界的起始点和终点，并确定与开始点和终点相关的参考点的位置; 第一方向确定单元，被配置为确定所述边界的第一方向; 梯度图获取单元，被配置为获得第一区域的梯度图; 梯度衰减单元，被配置为在梯度图中衰减映射第二区域的梯度; 以及提取单元，被配置为提取对象的边界。本发明的技术可以提高边界提取的准确性，可以应用于图像处理领域。

5. 发明授权

US09070035B2 Document processing apparatus, document processing method and scanner 有权
标题翻译：文件处理装置，文件处理方法和扫描仪
公开(公告)号：US09070035B2
公开(公告)日：2015-06-30
申请号：US13904477
申请日：2013-05-29
申请人： FUJITSU LIMITED
发明人： Yifeng Pan , Jun Sun , Yuan He , Satoshi Naoi
IPC分类号： G06K9/00 , G06K9/18 , G06K9/32
CPC分类号： G06K9/18 , G06K9/00442 , G06K9/3208 , G06K2209/01
摘要： The disclosure provides a document processing apparatus, method and a scanner. The document processing apparatus includes: a text line extraction unit extracting a text line from an input document; a language classification unit determining whether an OCR process is necessary for a language of the input document; an OCR unit determining, by performing the OCR process, an OCR confidence in the case that it is determined that the OCR process is necessary; an graphic feature recognition unit determining an graphic feature recognition confidence; and a determination unit determining a combination confidence based on at least one of the determined graphic feature recognition confidences and the determined OCR confidences, and determining an orientation of the input document based on the combination confidences. This technical solution can determine better an orientation of the document, and is especially applicable when the quality of the image of the document is deteriorated.
摘要翻译：本公开提供了一种文件处理装置，方法和扫描仪。文件处理装置包括：文本行提取单元，从输入文档中提取文本行; 语言分类单元，确定输入文档的语言是否需要OCR处理; OCR单元通过执行OCR处理确定在确定OCR处理是必要的情况下的OCR置信度; 确定图形特征识别置信度的图形特征识别单元; 以及确定单元，基于所确定的图形特征识别信息和所确定的OCR信心中的至少一个确定组合置信度，以及基于所述组合机密来确定所述输入文档的取向。该技术解决方案可以更好地确定文档的方向，并且当文档的图像的质量劣化时特别适用。

6. 发明授权

US09092844B2 Method and apparatus for correcting corner point of image and image processing device 有权
标题翻译：用于校正图像和图像处理装置的角点的方法和装置
公开(公告)号：US09092844B2
公开(公告)日：2015-07-28
申请号：US13740571
申请日：2013-01-14
申请人： Fujitsu Limited
发明人： Pan Pan , Yuan He , Jun Sun , Satoshi Naoi
IPC分类号： G06K9/50 , G06T5/00 , G06T7/00
CPC分类号： G06T5/001 , G06T3/0031 , G06T5/006 , G06T7/12 , G06T2207/10008 , G06T2207/20164 , G06T2207/30176
摘要： The present invention discloses a method and apparatus for correcting a corner point of an image and an image processing device. The method includes: determining first candidate corner points of an initial corner point in a first local region; obtaining information related to the image in a second local region; selecting, among the first candidate corner points of the initial corner point, the first candidate corner points meeting a predetermined condition, as second candidate corner points of the initial corner point according to the information; and correcting the initial corner point using the second candidate corner points of the initial corner point. The apparatus is configured to perform the processes of the method. The image processing device includes the apparatus for correcting a corner point of an image. With the technology, a roughly detected corner point can be corrected.
摘要翻译：本发明公开了一种用于校正图像的角点和图像处理装置的方法和装置。该方法包括：确定第一局部区域中的初始角点的第一候选角点; 获取与第二局部区域中的图像有关的信息; 在所述初始角点的所述第一候选角点中，选择满足预定条件的所述第一候选角点作为所述信息的所述初始角点的第二候选角点; 以及使用所述初始角点的第二候选角点来校正所述初始角点。该装置被配置为执行该方法的处理。图像处理装置包括用于校正图像的角点的装置。使用该技术，可以校正粗略检测的角点。

7. 发明授权

US09082181B2 Image processing method and apparatus 有权
标题翻译：图像处理方法和装置
公开(公告)号：US09082181B2
公开(公告)日：2015-07-14
申请号：US13875376
申请日：2013-05-02
申请人： FUJITSU LIMITED
发明人： Jun Sun , Yifeng Pan , Satoshi Naoi
IPC分类号： G06K9/18 , G06T7/00 , G06K9/00
CPC分类号： G06T7/004 , G06K9/00442 , G06T7/70
摘要： An image processing method and apparatus is provided. The image processing method includes steps of: generating a first scale binary image from an image, wherein the first scale is smaller than the original scale of the image; detecting at least one text line in the image based on the first scale binary image; generating a second scale binary image from the image, wherein the second scale is larger than the first scale; for each text line, calculating a similarity between corresponding sections in the first scale binary image and the second scale binary image, and removing the text line for which the similarity is lower than a predetermined level; for one or more of the remaining text line(s), performing OCR on corresponding section(s) in the second scale binary image to determine character orientation(s) of corresponding text line(s); and determining the orientation of the image according to the determined character orientation(s).
摘要翻译：提供了一种图像处理方法和装置。该图像处理方法包括以下步骤：从图像生成第一刻度二进制图像，其中第一刻度小于图像的原始尺度; 基于所述第一缩放二进制图像来检测所述图像中的至少一个文本行; 从所述图像生成第二尺度二进制图像，其中所述第二刻度大于所述第一刻度; 对于每个文本行，计算第一缩放二进制图像和第二缩放二进制图像中的相应部分之间的相似度，并且去除相似度低于预定水平的文本行; 对于一个或多个剩余的文本行，在第二比例二进制图像中的相应部分上执行OCR以确定相应文本行的字符取向; 以及根据确定的字符取向来确定图像的取向。

8. 发明授权

US09239954B2 Image processing device, image processing method, scanner and storage medium 有权
标题翻译：图像处理装置，图像处理方法，扫描仪和存储介质
公开(公告)号：US09239954B2
公开(公告)日：2016-01-19
申请号：US13906854
申请日：2013-05-31
申请人： FUJITSU LIMITED
发明人： Pan Pan , Yuan He , Jun Sun , Satoshi Naoi
IPC分类号： G06K9/00 , G06K9/32 , G06K9/46 , G06T7/00 , G06T5/40 , G06T5/00 , G06K9/48
CPC分类号： G06K9/00463 , G06K9/32 , G06K9/4638 , G06K2009/485 , G06K2209/01 , G06T5/002 , G06T5/40 , G06T7/12 , G06T7/181 , G06T2207/10008 , G06T2207/20192 , G06T2207/30176
摘要： The disclosure provides an image processing device, image processing method, scanner and storage medium. The image processing device is used for tracing a boundary of an object image in an image, the boundary being continuous and the rate of change in slope between adjacent points on the boundary being slow. The image processing device includes: a boundary estimation unit, adapted to estimate the location of the boundary of the object image; an interfering gradient processing unit, adapted to process an interfering gradient near the estimated boundary, so as to reduce the interfering gradient or remove the interfering gradient from the image; and a boundary tracing unit, adapted to trace the boundary in the image having the interfering gradient processed. By using the technique of the disclosure, the accuracy of tracing a boundary of an image is improved significantly.
摘要翻译：本公开提供了图像处理装置，图像处理方法，扫描仪和存储介质。图像处理装置用于跟踪图像中的对象图像的边界，边界是连续的，边界上的相邻点之间的斜率变化率较慢。图像处理装置包括：边界估计单元，适于估计对象图像的边界的位置; 干扰梯度处理单元，适于处理估计边界附近的干扰梯度，以便减少干扰梯度或从图像中去除干扰梯度; 以及边界跟踪单元，适于追踪处理了干涉梯度的图像中的边界。通过使用本公开的技术，跟踪图像边界的准确性得到显着改善。

9. 发明授权

US09129385B2 Image processing device, image processing method and apparatus for high precision document corners extraction 有权
标题翻译：图像处理装置，图像处理方法和高精度文档角提取装置
公开(公告)号：US09129385B2
公开(公告)日：2015-09-08
申请号：US13853544
申请日：2013-03-29
申请人： FUJITSU LIMITED
发明人： Shufu Xie , Yuan He , Jun Sun , Hao Yu , Satoshi Naoi
IPC分类号： G06K9/36 , G06T7/00 , H04N1/00 , G06K9/32
CPC分类号： G06T7/0085 , G06K9/3208 , G06K9/3233 , G06T7/12 , G06T7/136 , G06T2207/20164 , H04N1/00681
摘要： The present invention provides an image processing device, an image processing method and an apparatus so as to improve at least the precision of extracting document corners in image processing performed on an image captured for a document. The image processing device includes: an extracting unit for extracting boundaries of a document in a first direction and roughly-detected document corners, where the first direction is a horizontal direction or a vertical direction of the document image; a determining unit for determining candidate page corners on the boundaries in the first direction around the roughly-detected document corners; and a selecting unit for determining document corners of the document among the candidate page corners. With the foregoing technology of the invention, more precise document corners can be extracted, a better effect of image processing can be obtained, and applications in the field of image processing are possible.
摘要翻译：本发明提供一种图像处理装置，图像处理方法和装置，以便至少提高对针对文档拍摄的图像执行的图像处理中提取文档角的精度。图像处理装置包括：提取单元，用于提取文档在第一方向上的边界和大致检测到的文档角，其中第一方向是文档图像的水平方向或垂直方向; 确定单元，用于确定围绕大致检测到的文档角的第一方向上的边界上的候选页角; 以及选择单元，用于确定候选页角中的文档的文档角。利用本发明的上述技术，可以提取更精确的文档角，可以获得更好的图像处理效果，并且在图像处理领域中的应用是可能的。

10. 发明申请

US20130322769A1 Image Processing Device, Image Processing Method, Scanner and Storage Medium 有权
标题翻译：图像处理装置，图像处理方法，扫描仪和存储介质
公开(公告)号：US20130322769A1
公开(公告)日：2013-12-05
申请号：US13906854
申请日：2013-05-31
申请人： FUJITSU LIMITED
发明人： Pan PAN , Yuan He , Jun Sun , Satoshi Naoi
IPC分类号： G06K9/00
CPC分类号： G06K9/00463 , G06K9/32 , G06K9/4638 , G06K2009/485 , G06K2209/01 , G06T5/002 , G06T5/40 , G06T7/12 , G06T7/181 , G06T2207/10008 , G06T2207/20192 , G06T2207/30176
摘要： The disclosure provides an image processing device, image processing method, scanner and storage medium. The image processing device is used for tracing a boundary of an object image in an image, the boundary being continuous and the rate of change in slope between adjacent points on the boundary being slow. The image processing device includes: a boundary estimation unit, adapted to estimate the location of the boundary of the object image; an interfering gradient processing unit, adapted to process an interfering gradient near the estimated boundary, so as to reduce the interfering gradient or remove the interfering gradient from the image; and a boundary tracing unit, adapted to trace the boundary in the image having the interfering gradient processed. By using the technique of the disclosure, the accuracy of tracing a boundary of an image is improved significantly.
摘要翻译：本公开提供了图像处理装置，图像处理方法，扫描仪和存储介质。图像处理装置用于跟踪图像中的对象图像的边界，边界是连续的，边界上的相邻点之间的斜率变化率较慢。图像处理装置包括：边界估计单元，适于估计对象图像的边界的位置; 干扰梯度处理单元，适于处理估计边界附近的干扰梯度，以便减少干扰梯度或从图像中去除干扰梯度; 以及边界跟踪单元，适于追踪处理了干涉梯度的图像中的边界。通过使用本公开的技术，跟踪图像边界的准确性得到显着改善。

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