公开(公告)号：US20140226189A1

公开(公告)日：2014-08-14

申请号：US14177533

申请日：2014-02-11

Applicant: Keiji KOJIMA ,  Hiroyoshi Ishizaki

Inventor： Keiji KOJIMA ,  Hiroyoshi Ishizaki

IPC: H04N1/00

CPC classification number: H04N1/00013 ,  H04N1/00005 ,  H04N1/00015 ,  H04N1/00042 ,  H04N1/00045 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00074

Abstract: An image test apparatus includes an image generating unit acquiring an output target image with which an image is formed and output by an image forming apparatus, and generating a test image for testing the read image, an image test unit determining a defect of the read image based on a difference between the test image and the read image, a defect number determining unit determining number of defects contained in the read image based on a determination result of the defect of the read image, a frequency distribution generating unit accumulating defect numbers of multiple read images, each of the defect numbers being the number of defects detected in one read image, and generating a frequency distribution of the defect numbers, and an abnormality determination unit determining an abnormality of the image forming apparatus based on a change in the frequency distribution generated for each predetermined period.

Abstract translation: 图像测试装置包括图像生成单元，获取由图像形成装置形成并输出图像的输出目标图像，并生成用于测试读取图像的测试图像;图像测试单元，确定读取图像的缺陷 基于所述测试图像和所述读取图像之间的差异，缺陷数量确定单元，基于所述读取图像的所述缺陷的确定结果确定所述读取图像中包含的缺陷数;频率分布生成单元，累积所述多个 读取图像，每个缺陷编号是在一个读取图像中检测到的缺陷数量，并且产生缺陷编号的频率分布，以及异常确定单元，基于频率分布的变化来确定图像形成装置的异常 每个预定时段产生。

公开(公告)号：US20120121139A1

公开(公告)日：2012-05-17

申请号：US13277382

申请日：2011-10-20

Applicant: Keiji KOJIMA ,  Hiroyoshi ISHIZAKI

Inventor： Keiji KOJIMA ,  Hiroyoshi ISHIZAKI

IPC: G06K9/00

CPC classification number: B41F33/0036

Abstract: An inspection apparatus includes an obtaining unit configured to receive a target image obtained by scanning a printed surface of a printed material and receive a reference image obtained from print data of the printed surface; an analysis unit configured to analyze the reference image to obtain flatness levels indicating degrees of variation in pixel values; and a control unit configured to determine inspection thresholds for different types of image areas in the reference image based on the flatness levels, compare the reference image and the target image to detect differences in pixel values, and determine whether the differences are greater than or equal to the inspection thresholds to inspect print quality of the printed surface for the respective image areas.

Abstract translation: 一种检查装置，包括：获取单元，被配置为接收通过扫描印刷材料的印刷表面而获得的目标图像，并接收从印刷表面的打印数据获得的参考图像; 分析单元，被配置为分析参考图像以获得指示像素值的变化度的平坦度; 以及控制单元，被配置为基于平坦度水平确定参考图像中的不同类型的图像区域的检查阈值，比较参考图像和目标图像以检测像素值中的差异，并且确定差异是否大于或等于 检查阈值以检查各图像区域的打印表面的打印质量。

公开(公告)号：US20130044347A1

公开(公告)日：2013-02-21

申请号：US13572989

申请日：2012-08-13

Applicant: Tadashi KITAI ,  Hitomi KANEKO ,  Hiroyoshi ISHIZAKI ,  Keiji KOJIMA ,  Keiichi MIYAMOTO ,  Hiroyuki KAWAMOTO

Inventor： Tadashi KITAI ,  Hitomi KANEKO ,  Hiroyoshi ISHIZAKI ,  Keiji KOJIMA ,  Keiichi MIYAMOTO ,  Hiroyuki KAWAMOTO

IPC: G06K15/00

CPC classification number: H04N1/3878 ,  H04N1/4092 ,  H04N2201/0005 ,  H04N2201/0094

Abstract: An inspection apparatus, inspection system, inspection method, and inspection control program stored in a recording medium, each of which sets a reference point in a master image and a read image read from a printed image, which is to be used for detecting the positional shift between the read image and the master image, based on determination whether a pattern previously added to the printed image for detecting the positional shift is available or can be used to effectively detect the positional shift.

Abstract translation: 存储在记录介质中的检查装置，检查系统，检查方法和检查控制程序，每个记录介质设置主图像中的参考点和从打印图像读取的读取图像，其用于检测位置 基于确定先前添加到用于检测位置偏移的打印图像中的图案是否可用或可以用于有效地检测位置偏移，来读取图像和主图像之间的位移。

公开(公告)号：US20130044342A1

公开(公告)日：2013-02-21

申请号：US13584050

申请日：2012-08-13

Applicant: Hitomi KANEKO ,  Tadashi KITAI ,  Hiroyoshi ISHIZAKI ,  Keiji KOJIMA ,  Keiichi MIYAMOTO ,  Hiroyuki KAWAMOTO

Inventor： Hitomi KANEKO ,  Tadashi KITAI ,  Hiroyoshi ISHIZAKI ,  Keiji KOJIMA ,  Keiichi MIYAMOTO ,  Hiroyuki KAWAMOTO

IPC: G06K9/00 ,  G06K15/02

CPC classification number: B41J2/2135 ,  B41J29/393 ,  G06K15/1868

Abstract: An inspection apparatus obtains a correction parameter for correcting the positional shift between a previously read image and a master image, and corrects one of a currently read image or a master image using the correction parameter for the previously read image, before comparing between the currently read image and the master image to detect the positional shift in the currently read image.

Abstract translation: 检查装置获得用于校正先前读取的图像和主图像之间的位置偏移的校正参数，并且在当前读取的图像之间进行比较之前，使用用于先前读取的图像的校正参数来校正当前读取图像或主图像中的一个 图像和主图像以检测当前读取的图像中的位置偏移。

公开(公告)号：US20140313538A1

公开(公告)日：2014-10-23

申请号：US14322479

申请日：2014-07-02

Applicant: Tadashi KITAI ,  Hitomi KANEKO ,  Hiroyoshi ISHIZAKI ,  Keiji KOJIMA ,  Keiichi MIYAMOTO ,  Hiroyuki KAWAMOTO

Inventor： Tadashi KITAI ,  Hitomi KANEKO ,  Hiroyoshi ISHIZAKI ,  Keiji KOJIMA ,  Keiichi MIYAMOTO ,  Hiroyuki KAWAMOTO

IPC: H04N1/387

CPC classification number: H04N1/3878 ,  H04N1/4092 ,  H04N2201/0005 ,  H04N2201/0094

Abstract: An inspection apparatus, inspection system, inspection method, and inspection control program stored in a recording medium, each of which sets a reference point in a master image and a read image read from a printed image, which is to be used for detecting the positional shift between the read image and the master image, based on determination whether a pattern previously added to the printed image for detecting the positional shift is available or can be used to effectively detect the positional shift.

Abstract translation: 存储在记录介质中的检查装置，检查系统，检查方法和检查控制程序，每个记录介质设置主图像中的参考点和从打印图像读取的读取图像，其用于检测位置 基于确定先前添加到用于检测位置偏移的打印图像中的图案是否可用或可以用于有效地检测位置偏移，来读取图像和主图像之间的位移。

公开(公告)号：US20210209740A1

公开(公告)日：2021-07-08

申请号：US17130001

申请日：2020-12-22

Applicant: Takuji KAMADA ,  Keiji KOJIMA ,  Yoichi KUBOTA ,  Yuka MINAMIZONO

Inventor： Takuji KAMADA ,  Keiji KOJIMA ,  Yoichi KUBOTA ,  Yuka MINAMIZONO

IPC: G06T7/00

Abstract: An inspection system includes circuitry configured to determine whether a predetermined pattern is present in a master image of an inspection target object; acquire an inspection target image of the inspection target object from an image captured by an image capturing device; compare the master image of the inspection target object with the inspection target image, to inspect the inspection target object; and switch a threshold value used in comparing the master image with the inspection target image of the inspection target object depending on a determination result of determining whether the predetermined pattern is present in the master image of the inspection target object.

公开(公告)号：US20120113443A1

公开(公告)日：2012-05-10

申请号：US13273297

申请日：2011-10-14

Applicant: Hitoshi ITOH ,  Fumihiro NAKASHIGE ,  Keiji KOJIMA

Inventor： Hitoshi ITOH ,  Fumihiro NAKASHIGE ,  Keiji KOJIMA

IPC: H04N1/04 ,  H04N1/60

CPC classification number: H04N1/4095

Abstract: An image processing apparatus includes a scanning unit configured to scan at least one of two surfaces of a printed material on both of which information is printed and to obtain a density image representing intensity distribution of diffuse reflection light from the scanned surface and a gloss image representing intensity distribution of specular reflection light from the scanned surface, a mask image generating unit configured to generate a mask image for the scanned surface based on the obtained gloss image, and a show-through removing unit configured to perform mask processing on the density image using the generated mask image to generate a show-through-removed image that does not include show-through information for the scanned surface.

Abstract translation: 图像处理装置包括扫描单元，被配置为扫描印刷材料的两个表面中的至少一个，其中打印了两个信息，并获得表示来自扫描表面的漫反射光强度分布的浓度图像，以及表示 基于获得的光泽图像，配置成生成用于扫描面的掩模图像的掩模图像生成部，以及通过去除单元，对所述密度图像进行掩模处理，使用 生成的掩模图像以生成不包括扫描表面的显示信息的直通图像。