公开(公告)号：US20190230254A1

公开(公告)日：2019-07-25

申请号：US16250375

申请日：2019-01-17

申请人： Yusuke TANEDA ,  Kohei SHIMBO ,  Yoichi KUBOTA

发明人： Yusuke TANEDA ,  Kohei SHIMBO ,  Yoichi KUBOTA

IPC分类号： H04N1/60 ,  H04N1/00

CPC分类号： H04N1/6097 ,  G01J3/52 ,  G01J3/524 ,  H04N1/00689 ,  H04N1/00692 ,  H04N1/00726 ,  H04N1/00734 ,  H04N1/603 ,  H04N1/6055

摘要： A spectral characteristic obtaining apparatus includes a color information obtaining unit including a plurality of spectral sensors aligned in an array direction, the spectral sensors being configured to receive light reflected from an object so as to obtain first color information of the object; a spectral characteristic calculating unit configured to estimate a spectral characteristic of the object based on the first color information by using a preset transformation matrix; a calibration color index configured to include a region of a color with a known spectral characteristic; and a transformation matrix calibrating unit configured to calibrate the transformation matrix by using second color information obtained from the calibration color index, wherein the spectral sensors are configured to obtain the second color information from the same region included in the calibration color index, while relative positions thereof with respect to the calibration color index are changed at a time of calibration.

公开(公告)号：US20200300701A1

公开(公告)日：2020-09-24

申请号：US16809698

申请日：2020-03-05

申请人： Yusuke TANEDA ,  Kohei SHIMBO ,  Yoichi KUBOTA

发明人： Yusuke TANEDA ,  Kohei SHIMBO ,  Yoichi KUBOTA

IPC分类号： G01J3/28 ,  G01J3/50 ,  G06T7/90 ,  G06T11/00

摘要： A spectral property acquisition apparatus includes: a first conveying device to convey an object in predetermined conveying direction; a color data acquisition device including a plurality of spectroscopic sensors in the conveying direction, the plurality of spectroscopic sensors receive light emitted and reflected by the object to acquire color data on the object; a second conveying device to convey the color data acquisition device in a direction orthogonal to the conveying direction; and circuitry to estimate a spectral property of the object based on the color data. The circuitry controls the first conveying device so as to generate predetermined tension for the object in a color data acquisition area in which the color data on the object is acquired.

公开(公告)号：US20190250040A1

公开(公告)日：2019-08-15

申请号：US16253875

申请日：2019-01-22

申请人： Yusuke TANEDA ,  Kohei SHIMBO ,  Yoichi KUBOTA

发明人： Yusuke TANEDA ,  Kohei SHIMBO ,  Yoichi KUBOTA

IPC分类号： G01J3/52 ,  G01J3/28 ,  H04N1/60 ,  H04N1/00

摘要： A spectral characteristic acquiring apparatus includes a color data acquiring unit including a plurality of spectral sensors configured to receive reflected light from an object that has been irradiated with light to acquire color data of the object, a spectral characteristic calculating unit configured to estimate spectral characteristics of the object based on the acquired color data of the object using a preset transformation matrix, a first conveying unit configured to convey the object in a predetermined conveying direction, and a second conveying unit configured to convey the color data acquiring unit in a direction intersecting the predetermined conveying direction. The plurality of spectral sensors are arrayed in the predetermined conveying direction.

公开(公告)号：US20220141356A1

公开(公告)日：2022-05-05

申请号：US17512960

申请日：2021-10-28

申请人： Hideyuki KIHARA ,  Yuta NAGATA ,  Yusuke TANEDA

发明人： Hideyuki KIHARA ,  Yuta NAGATA ,  Yusuke TANEDA

IPC分类号： H04N1/60

摘要： A color chart is for performing color adjustment on an image forming apparatus. The color chart includes identification information and a color adjustment patch. The identification information is on an image forming apparatus to which color adjustment is to be applied. The color adjustment patch includes a plurality of color patches for performing color adjustment on the image forming apparatus indicated by the identification information.

公开(公告)号：US20230291842A1

公开(公告)日：2023-09-14

申请号：US18177886

申请日：2023-03-03

申请人： Hideyuki KIHARA ,  Yusuke TANEDA ,  Yuta NAGATA

发明人： Hideyuki KIHARA ,  Yusuke TANEDA ,  Yuta NAGATA

IPC分类号： H04N1/00 ,  H04N1/60

CPC分类号： H04N1/00037 ,  H04N1/00013 ,  H04N1/6044

摘要： An information processing apparatus includes processing circuitry. The processing circuitry detects an abnormality in an image reading apparatus from a first spectral reflectance and a second spectral reflectance, the first spectral reflectance being generated based on data read from a reference white plate installed in the image reading apparatus, the second spectral reflectance being generated before generation of the first spectral reflectance, and identifies a cause of an abnormality in the image reading apparatus in a case where the processing circuitry detects the abnormality.

公开(公告)号：US20240291931A1

公开(公告)日：2024-08-29

申请号：US18583896

申请日：2024-02-22

申请人： Hideyuki KIHARA ,  Yusuke TANEDA ,  Yuta NAGATA

发明人： Hideyuki KIHARA ,  Yusuke TANEDA ,  Yuta NAGATA

IPC分类号： H04N1/60

CPC分类号： H04N1/6044

摘要： A computer-implemented method of creating color chart data to be used for executing color adjustment on an image forming apparatus includes obtaining, from a color chart printed out by the image forming apparatus, color chart data including a color adjustment patch group in which a plurality of color patches used for executing the color adjustment are arranged adjacent to each other, determining, for one or more of the plurality of color patches included in the color adjustment patch group, whether color of the color patch and color of an adjacent color patch adjacent to the color patch are similar, and based on a determination that the color of the color patch and the color of the adjacent color patch are similar, creating color chart data in which the color patch and the adjacent color patch that are similar in color are arranged not to be adjacent to each other.