公开(公告)号：US20250139524A1

公开(公告)日：2025-05-01

申请号：US18926364

申请日：2024-10-25

Applicant: SEIKO EPSON CORPORATION

Inventor： Yasuhiro TAKEUCHI ,  Takahiro KAMADA ,  Yuko YAMAMOTO ,  Mitsuhiro YAMASHITA

IPC: G06N20/00 ,  B41J2/21 ,  G06T7/90 ,  H04N1/60

Abstract: A method of creating a color prediction model includes (a) acquiring color chart data representing N color patch groups; (b) a process of executing an accuracy calculation process sequentially while increasing an integer n, the process including (i) creating n tentative training datasets corresponding to n color patch groups using a predicted spectral reflectance predicted by a simple color prediction model, (ii) creating the tentative color prediction model by training the color prediction model with n tentative training datasets, and (iii) calculating a prediction accuracy of the tentative color prediction model; (c) a process of determining a number nc of color patch groups suitable for training the color prediction model using a relationship between the integer n and the prediction accuracy; (d) executing printing and measurement of spectral reflectances for the nc color patch groups, and creating training data including measurement results of the spectral reflectances; and (e) performing training of the color prediction model.

公开(公告)号：US20240135636A1

公开(公告)日：2024-04-25

申请号：US18489050

申请日：2023-10-17

Applicant: SEIKO EPSON CORPORATION

Inventor： Takuya ONO ,  Takahiro KAMADA ,  Mitsuhiro YAMASHITA ,  Yuko YAMAMOTO

IPC: G06T15/50 ,  G06F3/12 ,  G06F3/14 ,  G06T15/80 ,  G06V10/141 ,  G06V10/56 ,  H04N1/60

CPC classification number: G06T15/506 ,  G06F3/12 ,  G06F3/14 ,  G06T15/80 ,  G06V10/141 ,  G06V10/56 ,  H04N1/6016

Abstract: Image data expressed in a first color space is converted into an expression in a second color space to be used during rendering by using a color conversion profile, and converted image data is generated. A setting related to an application to physically-based rendering is performed on a parameter to be used when performing physically-based rendering on a print medium as a 3D object and related to an appearance of the print medium, the physically-based rendering of a printed print medium on which an input image is printed is performed using the set parameter, and a rendering image corresponding to an appearance of the print medium in a virtual space is displayed in a mode in which a difference in applications of the parameter during rendering is comparable.

公开(公告)号：US20230264908A1

公开(公告)日：2023-08-24

申请号：US18165224

申请日：2023-02-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Takahiro KAMADA ,  Mitsuhiro YAMASHITA ,  Takuya ONO ,  Yuko YAMAMOTO

IPC: B65H7/02

CPC classification number: B65H7/02 ,  B65H2511/413 ,  B65H2511/416

Abstract: The print medium identification method includes (a) a step of obtaining first physical property information about a print medium, (b) a step of obtaining second physical property information which is different from the first physical property information about the print medium, (c) a step of obtaining first discrimination information for discriminating a type of print medium by inputting the first physical property information to a first discriminator, (d) a step of obtaining second discrimination information for discriminating the type of print medium by inputting second physical property information to a second discriminator, and (e) a step of identifying the type of print medium by using the first discrimination information and the second discrimination information.

公开(公告)号：US20200314292A1

公开(公告)日：2020-10-01

申请号：US16833710

申请日：2020-03-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Mitsuhiro YAMASHITA

IPC: H04N1/60 ,  G01J3/50

Abstract: A color conversion information generation apparatus converts a first coordinate value into a second coordinate value in a second color space by using first conversion information, acquires a colorimetric coordinate value in a first color space indicating a colorimetric result of an image output by a first output apparatus according to the second coordinate value, converts the second coordinate value into a third coordinate value by using second conversion information, determines a target coordinate value indicating a target color in the first color space based on the third coordinate value and a difference between the first coordinate value and the colorimetric coordinate value, retrieves a fourth coordinate value satisfying a condition that a color difference between a fifth coordinate value in the first color space obtained by converting a fourth coordinate value in the second color space by using the second conversion information and the target coordinate value is smaller than a color difference between the third coordinate value and the target coordinate value, and generates color conversion information used to convert the first coordinate value or a name of a color into a coordinate value in the second color space based on the first coordinate value and the fourth coordinate value satisfying the condition.

公开(公告)号：US20180376030A1

公开(公告)日：2018-12-27

申请号：US16012882

申请日：2018-06-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Mitsuhiro YAMASHITA ,  Kenji FUKASAWA

IPC: H04N1/60 ,  H04N1/00

CPC classification number: H04N1/6025 ,  H04N1/00023 ,  H04N1/00087 ,  H04N1/60 ,  H04N1/6016 ,  H04N1/6019 ,  H04N1/6033 ,  H04N1/6036 ,  H04N1/6055

Abstract: A profile adjustment method of adjusting a correspondent relation between coordinate values of an input color space and coordinate values of an output color space is a method including: storing history information indicating adjustment content of a first table defining the correspondent relation in a first profile at a private tag of the first profile; reading the history information from the private tag of the first profile; and using the read history information for at least one of readjustment of the first table and adjustment of a second table defining the correspondent relation in a second profile.

公开(公告)号：US20250156125A1

公开(公告)日：2025-05-15

申请号：US18942830

申请日：2024-11-11

Applicant: SEIKO EPSON CORPORATION

Inventor： Akira OKURA ,  Yuji ISHIKAWA ,  Takahiro KAMADA ,  Mitsuhiro YAMASHITA ,  Takuya ONO

IPC: G06F3/12

Abstract: Provided is a printing system including a display configured to provide a plurality of patterns including a first pattern in which a first image and a second image are printed on the same surface side of a transparent medium and a second pattern in which the first image and the second image are respectively printed on opposite sides of the transparent medium, and a printer configured to execute printing according to a pattern selected by a user from the patterns being provided.

公开(公告)号：US20240273323A1

公开(公告)日：2024-08-15

申请号：US18436066

申请日：2024-02-08

Applicant: SEIKO EPSON CORPORATION

Inventor： Mitsuhiro YAMASHITA ,  Takahiro KAMADA ,  Takuya ONO ,  Yuko YAMAMOTO

IPC: G06K15/02 ,  G06T15/04

CPC classification number: G06K15/023 ,  G06K15/1859 ,  G06K15/1868 ,  G06K15/1878 ,  G06T15/04

Abstract: An image processing device includes a shielding degree calculation section that calculates a shielding degree of a printed layer, and a rendering section. The rendering section is configured to generate at least one of the front surface view, in which the printed object is observed from the front surface side, and the back surface view, in which the printed object is observed from the back surface side, by mapping an image data, which is color converted, to a 3D object and by performing rendering using the shielding degree of the printed layer.

公开(公告)号：US20230353698A1

公开(公告)日：2023-11-02

申请号：US18309850

申请日：2023-05-01

Applicant: SEIKO EPSON CORPORATION

Inventor： Takuya ONO ,  Yuko YAMAMOTO ,  Takahiro KAMADA ,  Mitsuhiro YAMASHITA

IPC: G06F3/12

CPC classification number: G06F3/1208 ,  G06F3/1256

Abstract: An image analyzer includes an in-use ink information determination section that determines an ink type to be used for printing and an ink quantity to be used for printing for the ink type as in-use ink information by using image data in accordance with conditions set in advance, a printed image quality information acquisition section that acquires at least one item of printed image quality information on image quality specified in advance and provided when the image data is printed by using the determined in-use ink information, and a display section that displays at least one of the in-use ink information and the printed image quality information.

公开(公告)号：US20230281797A1

公开(公告)日：2023-09-07

申请号：US18176299

申请日：2023-02-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Mitsuhiro YAMASHITA ,  Takahiro KAMADA ,  Naoki HAGIHARA ,  Takuya ONO ,  Yuko YAMAMOTO

IPC: G06T7/00

CPC classification number: G06T7/001 ,  G06T2207/20081

Abstract: Prepare a learning model that has been trained to output similarity for each defect species by machine learning using a teacher image that is an image containing a defect occurring during printing and that is associated with a defect species in advance. Then, a target image is prepared for inspection by acquiring an image of printed matter that has been printed. By using the learning model with respect to this target image, the similarity of the defect present in the target image to a known defect species is acquired, and this similarity is used to discriminate the defect present in the target image as at least one of the known defect species. When updating the learning model based on this discrimination result, the learning model is made to perform machine learning for a defect species that is different from the discriminated defect species or that is associated with an unknown defect.

公开(公告)号：US20220305804A1

公开(公告)日：2022-09-29

申请号：US17656246

申请日：2022-03-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Mitsuhiro YAMASHITA ,  Takahiro KAMADA ,  Kenji MATSUZAKA ,  Satoru ONO ,  Ryoki WATANABE

IPC: B41J2/195

Abstract: A print condition setting method for setting a print condition in a printer includes: an ink type learning step of executing machine learning of an ink type discriminator using physical property information of ink and an ink type identifier; a medium type learning step of executing machine learning of a medium type discriminator using characteristic information of a medium and medium type identification information; and a print condition setting step of setting the print condition according to an ink type discriminated by the ink type discriminator and a medium type discriminated by the medium type discriminator.