公开(公告)号：US20160134768A1

公开(公告)日：2016-05-12

申请号：US14925779

申请日：2015-10-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sota Nanbu ,  Hiroyuki Harada

IPC: H04N1/00 ,  H04N1/60 ,  H04N1/64 ,  G06K9/00 ,  H04N1/411 ,  H04N1/40 ,  H04N1/405

CPC classification number: H04N1/00376 ,  G06K9/00456 ,  H04N1/0036 ,  H04N1/40062 ,  H04N1/405 ,  H04N1/4115 ,  H04N1/6072 ,  H04N1/642 ,  H04N2201/0094

Abstract: An image processing apparatus includes an area extracting unit and a table image detecting unit. The area extracting unit is configured to extract halftone dot areas and character images in an image. The table image detecting unit is configured to detect the extracted halftone dot areas as a table image if (a) the extracted halftone dot areas include no ruled lines, (b) plural halftone dot areas among the extracted halftone dot areas are arrayed in a primary scanning direction and/or a secondary scanning direction, and (c) the arrayed plural halftone dot areas include the character images at at least two positions.

Abstract translation: 图像处理装置包括区域提取单元和表格图像检测单元。 区域提取单元被配置为在图像中提取半色调点区域和字符图像。 如果（a）提取的半色调点区域不包括格线，则将所提取的半色调点区域检测为表格图像，（b）提取的半色调点区域中的多个半色调点区域被排列在一个主色调区域中 扫描方向和/或副扫描方向，以及（c）排列的多个半色调点区域包括至少两个位置处的字符图像。

公开(公告)号：US09665770B2

公开(公告)日：2017-05-30

申请号：US15074814

申请日：2016-03-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sota Nanbu

IPC: G06K9/00 ,  G06K15/02

CPC classification number: G06K9/00463 ,  G06K15/1868 ,  G06K15/1881 ,  G06K15/189

Abstract: An image processing apparatus includes an area extracting unit and a table image detecting unit. The area extracting unit is configured to extract a halftone dot area and character images in an image. The table image detecting unit is configured to detect the extracted halftone dot area as a table image if (a) the extracted halftone dot area includes no ruled lines and (b1) at least two of the detected character images are arranged in a primary scanning direction or a secondary scanning direction in the halftone dot area and (b2) character alignment of a tabular layout is detected on the character images on the basis of positional relations between divisional areas into which the halftone dot area is equally divided and the character images.

公开(公告)号：US20160026906A1

公开(公告)日：2016-01-28

申请号：US14803322

申请日：2015-07-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroyuki Harada ,  Sota Nanbu

IPC: G06K15/02

CPC classification number: H04N1/40 ,  G06K15/1881 ,  H04N1/40062 ,  H04N1/40081 ,  H04N1/4105

Abstract: An image processing apparatus includes an area extracting unit, a specific halftone dot area detecting unit, and an encoding unit. The area extracting unit extracts a halftone dot area from an image. The specific halftone dot area detecting unit detects a specific halftone dot area, the specific halftone dot area being the extracted halftone dot area that includes a character and of which a variation range in a distribution of luminance and hue is less than a predetermined range. The encoding unit encodes the specific halftone dot area in an encoding manner different from an encoding manner for the halftone dot area other than the specific halftone dot area, the encoding manner for the specific halftone dot area providing higher image quality after encoding than image quality provided by the encoding manner for the halftone dot area other than the specific halftone dot area.

Abstract translation: 图像处理装置包括区域提取单元，特定半色调点区域检测单元和编码单元。 区域提取单元从图像中提取半色调点区域。 特定的半色调点区域检测单元检测特定的半色调点区域，特定的半色调点区域是提取的半色调点区域，其包括字符，并且其亮度和色相的分布的变化范围小于预定范围。 编码单元以与特定半色调点区域以外的半色调点区域的编码方式不同的编码方式对特定的半色调点区域进行编码，对于提供比编码的图像质量更高的图像质量的特定半色调点区域的编码方式比提供的图像质量 通过除了特定半色调点区域之外的半色调点区域的编码方式。

公开(公告)号：US20180350040A1

公开(公告)日：2018-12-06

申请号：US15991637

申请日：2018-05-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sota Nanbu

IPC: G06T3/40 ,  G06T7/13

Abstract: An edge image generating unit detects edge pixels in an original image and generates an edge image that includes the detected edge pixels. A reduction processing unit sets a reduction direction as a horizontal or a vertical direction, and reduces the edge image along the reduction direction by a predetermined reduction ratio without reducing the original image along a direction perpendicular to the reduction direction and thereby generates a reduced image. A connecting pixel group detecting unit detects, in the reduced image, a connecting pixel group continuously extending along the reduction direction. A ruled line determining unit associates two connecting pixel groups with each other as a connecting pixel group pair among the detected connecting pixel groups, and determines a position of a ruled line in the original image from a position of the connecting pixel group pair on the basis of the reduction ratio.

公开(公告)号：US20160283788A1

公开(公告)日：2016-09-29

申请号：US15074814

申请日：2016-03-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sota Nanbu

IPC: G06K9/00 ,  G06K15/02

CPC classification number: G06K9/00463 ,  G06K15/1868 ,  G06K15/1881 ,  G06K15/189

Abstract: An image processing apparatus includes an area extracting unit and a table image detecting unit. The area extracting unit is configured to extract a halftone dot area and character images in an image. The table image detecting unit is configured to detect the extracted halftone dot area as a table image if (a) the extracted halftone dot area includes no ruled lines and (b1) at least two of the detected character images are arranged in a primary scanning direction or a secondary scanning direction in the halftone dot area and (b2) character alignment of a tabular layout is detected on the character images on the basis of positional relations between divisional areas into which the halftone dot area is equally divided and the character images.

Abstract translation: 图像处理装置包括区域提取单元和表格图像检测单元。 区域提取单元被配置为提取图像中的半色调点区域和字符图像。 如果（a）所提取的半色调点区域不包括划线，并且（b1）检测到的字符图像中的至少两个被排列在主扫描方向上，则表图像检测单元被配置为检测提取的半色调点区域作为表格图像 或者在半色调点区域中的辅助扫描方向和（b2）基于半色调点区域被均匀分割的分割区域与字符图像之间的位置关系在字符图像上检测表格布局的字符对齐。

公开(公告)号：US09858512B2

公开(公告)日：2018-01-02

申请号：US15219100

申请日：2016-07-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sota Nanbu

IPC: G06F15/00 ,  G06K15/02 ,  G06K9/00 ,  G06K15/00

CPC classification number: G06K15/1843 ,  G06K9/00449

Abstract: An image processing apparatus includes a reduction processing unit, a connecting pixel group detecting unit, and a ruled line determining unit. The reduction processing unit is configured to (a) set a reduction direction as one of a horizontal direction and a vertical direction, and (b) reduce an original image along the reduction direction by a predetermined reduction ratio without reducing the original image along a direction perpendicular to the reduction direction and thereby generate a reduced image. The connecting pixel group detecting unit is configured to detect a connecting pixel group in the reduced image, the connecting pixel group continuously extending along the reduction direction. The ruled line determining unit is configured to determine a position of a ruled line in the original image from a position of the connecting pixel group in the reduced image on the basis of the reduction ratio.

公开(公告)号：US09756200B2

公开(公告)日：2017-09-05

申请号：US14925779

申请日：2015-10-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sota Nanbu ,  Hiroyuki Harada

IPC: H04N1/00 ,  H04N1/40 ,  H04N1/60 ,  H04N1/411 ,  H04N1/64 ,  G06K9/00 ,  H04N1/405

CPC classification number: H04N1/00376 ,  G06K9/00456 ,  H04N1/0036 ,  H04N1/40062 ,  H04N1/405 ,  H04N1/4115 ,  H04N1/6072 ,  H04N1/642 ,  H04N2201/0094

Abstract: An image processing apparatus includes an area extracting unit and a table image detecting unit. The area extracting unit is configured to extract halftone dot areas and character images in an image. The table image detecting unit is configured to detect the extracted halftone dot areas as a table image if (a) the extracted halftone dot areas include no ruled lines, (b) plural halftone dot areas among the extracted halftone dot areas are arrayed in a primary scanning direction and/or a secondary scanning direction, and (c) the arrayed plural halftone dot areas include the character images at at least two positions.

公开(公告)号：US08947746B2

公开(公告)日：2015-02-03

申请号：US14031598

申请日：2013-09-19

Applicant: Kyocera Document Solutions Inc.

Inventor： Sota Nanbu

IPC: H04N1/40 ,  H04N1/00

CPC classification number: H04N1/00755 ,  H04N1/00708 ,  H04N1/00729

Abstract: An image reading device includes a platen glass, a document feeder, a light source, a light receiving section, a first opening/closing detection sensor, a second opening/closing detection sensor, and a document size determination section. The document size determination section determines a size of an original document on the basis of a measurement result from the light receiving section. Where the first opening/closing detection sensor indicates the open state, while the second opening/closing detection sensor indicates no open state when the original document is placed on the platen glass, the document size determination section determines a size of the original document in a main scanning direction on the basis of full lighting-up determination data obtained with all of plural light emitting elements lighted up and partial lighting-up determination data obtained with some of the plural light emitting elements lighted up.

Abstract translation: 图像读取装置包括压板玻璃，文件馈送器，光源，光接收部，第一打开/关闭检测传感器，第二打开/关闭检测传感器和文件尺寸确定部。 文件尺寸确定部分基于来自光接收部分的测量结果来确定原稿的尺寸。 在第一打开/关闭检测传感器指示打开状态的情况下，当原稿被放置在稿台玻璃上时，当第二打开/关闭检测传感器指示不打开状态时，文档尺寸确定部分确定原稿的尺寸 基于由多个发光元件全部获得的全部点亮确定数据亮起的主扫描方向，以及由多个发光元件中的一些发光元件获得的部分点亮确定数据。

公开(公告)号：US10650493B2

公开(公告)日：2020-05-12

申请号：US15991637

申请日：2018-05-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sota Nanbu

IPC: G06T3/40 ,  G06T7/13

Abstract: An edge image generating unit detects edge pixels in an original image and generates an edge image that includes the detected edge pixels. A reduction processing unit sets a reduction direction as a horizontal or a vertical direction, and reduces the edge image along the reduction direction by a predetermined reduction ratio without reducing the original image along a direction perpendicular to the reduction direction and thereby generates a reduced image. A connecting pixel group detecting unit detects, in the reduced image, a connecting pixel group continuously extending along the reduction direction. A ruled line determining unit associates two connecting pixel groups with each other as a connecting pixel group pair among the detected connecting pixel groups, and determines a position of a ruled line in the original image from a position of the connecting pixel group pair on the basis of the reduction ratio.

公开(公告)号：US20170032227A1

公开(公告)日：2017-02-02

申请号：US15219100

申请日：2016-07-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sota Nanbu

IPC: G06K15/02 ,  G06K9/00

CPC classification number: G06K15/1843 ,  G06K9/00449

Abstract: An image processing apparatus includes a reduction processing unit, a connecting pixel group detecting unit, and a ruled line determining unit. The reduction processing unit is configured to (a) set a reduction direction as one of a horizontal direction and a vertical direction, and (b) reduce an original image along the reduction direction by a predetermined reduction ratio without reducing the original image along a direction perpendicular to the reduction direction and thereby generate a reduced image. The connecting pixel group detecting unit is configured to detect a connecting pixel group in the reduced image, the connecting pixel group continuously extending along the reduction direction. The ruled line determining unit is configured to determine a position of a ruled line in the original image from a position of the connecting pixel group in the reduced image on the basis of the reduction ratio.

Abstract translation: 图像处理装置包括缩小处理单元，连接像素组检测单元和格线确定单元。 缩小处理单元被配置为（a）将缩小方向设置为水平方向和垂直方向之一，并且（b）沿着缩小方向减小预定缩小比例的原始图像而不沿着方向减小原始图像 垂直于还原方向，从而产生缩小的图像。 连接像素组检测单元被配置为检测缩小图像中的连接像素组，连接像素组沿着缩小方向连续延伸。 划线确定单元被配置为基于缩小率从缩小图像中的连接像素组的位置确定原始图像中的划线的位置。