公开(公告)号：US20180278807A1

公开(公告)日：2018-09-27

申请号：US15920640

申请日：2018-03-14

Applicant: Ryotaro MIWA

Inventor： Ryotaro MIWA

IPC: H04N1/60 ,  G03G15/01 ,  H04N1/00

CPC classification number: H04N1/6044 ,  G01J3/50 ,  G01J3/52 ,  G01J3/524 ,  G01J2003/503 ,  G03G15/0105 ,  G03G15/5062 ,  G03G15/5087 ,  G03G2215/00067 ,  H04N1/00045 ,  H04N1/00087 ,  H04N1/6019 ,  H04N1/6027 ,  H04N1/6094 ,  H04N1/6097

Abstract: An image forming apparatus includes an image forming section to form a correction pattern, a reading unit to read the pattern and generate first data, a color converter to convert the first data into second data, a memory to store density conversion data for a recording medium, a determiner to determine whether the memory contains the conversion data for the recording medium the pattern is formed, an acquisition unit to acquire spectral measured by an external colorimeter the memory does not contain the conversion data, a first density converter to convert the spectral data into density data, a density conversion data generator to correlate the second data and the density data and generate the conversion data, a second density converter to convert the second data into the density data using the conversion data, and a correction curve generator to generate correction curve data based on the density data.

公开(公告)号：US20180188113A1

公开(公告)日：2018-07-05

申请号：US15393760

申请日：2016-12-29

Applicant: PRINTING TECHNOLOGY RESEARCH INSTITUTE

Inventor： SHIH-CHANG CHANG ,  CHIA-PIN CHUEH ,  HAO-HUNG CHANG ,  SI-HENG CHEN

IPC: G01J3/46 ,  H04N1/60 ,  H04N1/64 ,  H04N5/225 ,  G01J3/50 ,  G06T7/90 ,  G06T7/00

CPC classification number: G01J3/462 ,  G01J3/0291 ,  G01J3/524 ,  G06T7/90 ,  G06T2207/10024 ,  H04N1/6075 ,  H04N1/644 ,  H04N5/2256

Abstract: The present invention provides a method and a cover device for measuring hue using a mobile device. After the camera unit of the mobile device acquires the ColorChecker image, the mobile device converts the color space of the image and measures the hues of the ColorChecker. In addition, while acquiring the ColorChecker image, the ColorChecker is placed in the cover device.

公开(公告)号：US09921100B2

公开(公告)日：2018-03-20

申请号：US15598501

申请日：2017-05-18

Applicant: TOPCON TECHNOHOUSE CORPORATION

Inventor： Yuzo Izaki

IPC: G01N21/25 ,  G01J1/04 ,  G01J1/44 ,  G01J3/02 ,  G01J3/28 ,  G01J1/42

CPC classification number: G01J1/0437 ,  G01J1/44 ,  G01J3/0229 ,  G01J3/0262 ,  G01J3/26 ,  G01J3/2803 ,  G01J3/32 ,  G01J3/465 ,  G01J3/506 ,  G01J3/51 ,  G01J3/524 ,  G01J2001/4247 ,  G01J2003/123

Abstract: A photometric device (1) measuring light emitted from a measuring object such as a display (2) includes two types of filters including interference filters (20X, 20Y, and 20Z) and an LVF (21), a disk (22) supporting the interference filters and the LVF, a motor (23) rotatably drive the disk to cause the light emitted from the measuring object to scan the interference filters and the LVF sequentially, a photoreceptor (13) converting light passed through the interference filters and light passed through the LVF to an electrical signal, a photometric controller (14) outputting photometric information based on the electrical signal of the light passed through the interference filters and converted by the photoreceptor and the electrical signal of the light passed through the LVF and converted by the photoreceptor.

公开(公告)号：US09917955B2

公开(公告)日：2018-03-13

申请号：US15423301

申请日：2017-02-02

Applicant: Onyx Graphics, Inc.

Inventor： Maxim Wasyl Derhak ,  Lin Luo ,  Douglas Nolan Mackay ,  William Irel Chase ,  Lin Chen

IPC: G01N21/59 ,  H04N1/00 ,  G01N21/27 ,  H04N1/60 ,  G06K15/02

CPC classification number: H04N1/00087 ,  G01J3/462 ,  G01J3/506 ,  G01J3/524 ,  G01N21/274 ,  G01N21/59 ,  G01N2201/062 ,  G01N2201/127 ,  G06K15/027 ,  G06K2215/0094 ,  G06K2215/0097 ,  H04N1/00023 ,  H04N1/00034 ,  H04N1/00037 ,  H04N1/00058 ,  H04N1/6033 ,  H04N1/6097 ,  H04N2201/0082

Abstract: Systems, devices, and methods illuminate one or more areas on a calibration medium from a first side of the calibration medium with one or more respective light-emitting regions of a light source; detect light transmitted through the calibration medium at the one or more areas, thereby obtaining calibration-measurement information for at least one of the one or more light-emitting regions; illuminate one or more color patches on a color-measurement medium from a first side of the color-measurement medium with the one or more respective light-emitting regions of the light source; detect light transmitted through the one or more color patches printed on the color-measurement medium, thereby obtaining color-measurement information for at least one of the one or more light-emitting regions; and generate one or more transmissive measurements based on the calibration-measurement information and the color-measurement information.

公开(公告)号：US09909920B2

公开(公告)日：2018-03-06

申请号：US15598493

申请日：2017-05-18

Applicant: TOPCON TECHNOHOUSE CORPORATION

Inventor： Yuzo Izaki

IPC: G01N21/25 ,  G01J1/04 ,  G01J3/02 ,  G01J3/28 ,  G01J1/44 ,  G01J1/42

CPC classification number: G01J1/0437 ,  G01J1/44 ,  G01J3/0229 ,  G01J3/0262 ,  G01J3/26 ,  G01J3/2803 ,  G01J3/32 ,  G01J3/465 ,  G01J3/506 ,  G01J3/51 ,  G01J3/524 ,  G01J2001/4247 ,  G01J2003/123

Abstract: A photometric device (1) measuring light emitted from a measuring object such as a display (2) includes interference filters (20X, 20Y, and 20Z) selectively transmitting a particular wavelength corresponding to a respective one of tristimulus values, an LVF (21) separating and transmitting incident light, a disk (22) supporting the interference filters and the LVF, a motor (23) rotatably drive the disk to cause the light emitted from the measuring object to scan the interference filters and the LVF sequentially, a photoreceptor (13) converting light passed through the interference filters and light passed through the LVF to an electrical signal, and a photometric controller (14) outputting photometric information based on the electrical signal of the light passed through the interference filters and converted by the photoreceptor and the electrical signal of the light passed through the LVF and converted by the photoreceptor.

公开(公告)号：US09885984B2

公开(公告)日：2018-02-06

申请号：US15283871

申请日：2016-10-03

Applicant: Konica Minolta, Inc.

Inventor： Hiroyuki Arai

IPC: G03G15/00 ,  G03G15/20 ,  G01J3/52 ,  G03G15/01

CPC classification number: G03G15/2039 ,  G01J3/524 ,  G03G15/01 ,  G03G15/0189 ,  G03G15/5062 ,  G03G15/55

Abstract: An image forming apparatus includes a sheet feeder, a sheet conveyor, an image former, a fixer, a colorimeter and a processor. The fixer fixes an image formed on a sheet by the image former. The colorimeter is provided on a down-stream side than the fixer in a sheet conveying direction and reads the image. The processor calibrates the colorimeter based on the image read by the colorimeter. When an image for calibration which is formed in advance on a color sample housed in the sheet feeder is made to be read by the colorimeter, the processor controls at least one of the sheet conveyor, the image former and the fixer according to a condition for controlling deterioration of the color sample which is different from a condition of when carrying out an image forming.

公开(公告)号：US20180024003A1

公开(公告)日：2018-01-25

申请号：US15545978

申请日：2015-04-29

Applicant: HEWLETT-PACKARD INDIGO B.V.

Inventor： Lena Gurevich ,  Nir Guttman ,  Ran Waidman

IPC: G01J3/02 ,  G01J3/52

CPC classification number: G01J3/027 ,  G01J3/524

Abstract: A spectrophotometer diagnosis system and a method for diagnosing a spectrophotometer, wherein at least one test patch is printed in proximity to at least one non-printed substrate patch, at least one value characteristic of the at least one test patch and/or the at least one substrate patch is measured using the spectrophotometer, and at least one diagnostic score for the spectrophotometer is determined based on the at least one measured value in comparison with a reference value.

公开(公告)号：US09874477B2

公开(公告)日：2018-01-23

申请号：US15273471

申请日：2016-09-22

Applicant: Richard F. Lawn

Inventor： Richard F. Lawn

IPC: G01N21/25 ,  G01J3/50 ,  G01J3/02 ,  G01J3/46

CPC classification number: G01J3/50 ,  G01J3/0262 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/0297 ,  G01J3/52 ,  G01J3/524 ,  G01J2003/467

Abstract: A method for determining color properties of a target, comprising: providing an enclosure (10) having first and second opposing end walls (10a, 10b) each having an aperture therein, the first end wall (10a) having, on its surface within said enclosure, a pattern (20) of colored sections arranged around the respective aperture (16), no light source being provided within said enclosure; placing said first screen (12) over said target; substantially simultaneously illuminating, through the aperture in the second end wall, said screen overlayed on said target and using said lens module to obtain sensor data representative of at least a portion of light reflected from said screen overlayed on said target and received by said sensor; and transmitting said sensor data to a remote processing module configured to adjust a color property of said target obtained from respective target parameters derived therefor.

公开(公告)号：US20180010966A1

公开(公告)日：2018-01-11

申请号：US15700254

申请日：2017-09-11

Applicant: OLYMPUS CORPORATION

Inventor： Manabu ICHIKAWA ,  Hiroki MARUYAMA

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/52 ,  H04N9/04 ,  H04N1/60 ,  H04N9/07

CPC classification number: G01J3/28 ,  G01J3/027 ,  G01J3/524 ,  H04N1/603 ,  H04N1/6041 ,  H04N5/3651 ,  H04N9/04 ,  H04N9/0451 ,  H04N9/07 ,  H04N9/646 ,  H04N9/67

Abstract: An image processing apparatus is configured to: acquire a correction factor from a recording unit for recording, for each of a plurality of pixels, the correction factor for correcting a difference in pixel value corresponding to a difference between a spectral sensitivity and a preset reference spectral sensitivity in a predetermined wavelength range at a pixel of interest, based on image data generated by an image sensor, the image sensor having the plurality of pixels on which color filters of a plurality of colors with different spectral transmittances are respectively located, the color filters forming a predetermined array pattern; calculate a correction amount for correcting a pixel value of the pixel of interest based on the correction factor at the pixel of interest and pixel values of pixels surrounding the pixel of interest; and correct the pixel value of the pixel of interest by using the correction amount.

公开(公告)号：US20180003562A1

公开(公告)日：2018-01-04

申请号：US15352451

申请日：2016-11-15

Applicant: FUJI XEROX CO., LTD.

Inventor： Takuhiro TOGASHI

IPC: G01J3/52 ,  G01J3/50

CPC classification number: G01J3/524 ,  G01J3/0289 ,  G01J3/46 ,  G01J3/50 ,  H04N1/6033

Abstract: An information processor includes an acquisition unit that acquires a colorimetric value from a colorimeter that scans a color chart and measures color; and an output unit that assigns a weighting value according to a position in a scanning interval of the color chart, and that outputs a weighted average value of the colorimetric value of multiple patches for a color setting value.