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公开(公告)号：US20230034012A1
公开(公告)日：2023-02-02
申请号：US17873351
申请日：2022-07-26
Applicant: KYOCERA Document Solutions Inc,
Inventor： Koji SATO , Kanako MORIMOTO , Rui HAMABE , Kazunori TANAKA , Takuya MIYAMOTO
IPC: G06F16/93 , G06F16/9035 , G06F16/9038
Abstract: A vector generation unit derives a reference feature vector and a document feature vector. A feature quantity extraction unit performs a dimensionality reduction process on the reference feature vector and the document feature vector so as to set a dimensional value as a first feature quantity and derives a cosine similarity between the reference feature vector and the document feature vector as a second feature quantity. A grid division unit classifies documents into first partial regions obtained by dividing a feature quantity space of the first feature quantity, and classifies the documents into second partial regions obtained by dividing a range of the second feature quantity. A training data extraction unit selects, for each combination of a first partial region and a second partial region, a document classified in both the partial regions and sets documents selected with respect to all combinations as training data.
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公开(公告)号：US20210016564A1
公开(公告)日：2021-01-21
申请号：US16931065
申请日：2020-07-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yoshihiro YAMAGISHI , Kanako MORIMOTO , Ryota OKUI , Satoshi ISHII
IPC: B41J2/045
Abstract: An image forming apparatus includes a recording head, a controller, a first detector, and a second detector. The controller calculates a viscosity of ink in each of nozzles based on a temperature, a humidity, and an elapsed time. The controller determines, among the nozzles, a nozzle in which the viscosity is equal to or higher than a threshold to be a high-viscosity nozzle. The controller acquires non-ejection information indicating an ejection disabled nozzle that is disabled to eject the ink. The controller acquires a viscosity of the ink in the ejection disabled nozzle. The controller calculates an average value of viscosities of the ink in the plurality of nozzles. The controller compares the viscosity of the ink in the ejection disabled nozzle with the average value of the viscosities of the ink in the nozzles. The controller determines whether or not to change a contribution value based on a comparison result.
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公开(公告)号：US20230034027A1
公开(公告)日：2023-02-02
申请号：US17873371
申请日：2022-07-26
Applicant: KYOCERA Document Solutions Inc.
Inventor： Koji SATO , Kanako MORIMOTO , Rui HAMABE , kazunori TANAKA , Takuya MIYAMOTO
Abstract: A vector generation unit derives a feature vector of a reference document and a feature vector of a population document. A feature quantity extraction unit performs a dimensionality reduction process to reduce dimensionality of the above feature vectors and sets a dimensional value obtained by the dimensionality reduction process as a first feature quantity, and derives a cosine similarity between the feature vector of the reference document and the feature vector of the population document as a second feature quantity. A retrieval range control unit extracts a specific number of population documents, starting from the population document with the shortest distance to the reference document in a feature quantity space of the first feature quantity, so as to limit a retrieval range. A training data extraction unit extracts, as training data, a specific number of documents from the extracted documents, starting from the document with the lowest cosine similarity.
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公开(公告)号：US20220107601A1
公开(公告)日：2022-04-07
申请号：US17493172
申请日：2021-10-04
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kanako MORIMOTO
Abstract: An image forming apparatus includes an image carrier, a cleaning blade, a motor, and a controller. The image carrier carries a toner image. The cleaning blade is located in contact with the image carrier. The motor drives the image carrier so as to perform reverse rotation and forward rotation. The controller measures a first torque of the image carrier during the reverse rotation, and a second torque of the image carrier during the forward rotation, on a basis of a current value of the motor. The controller calculates an amount of a substance stuck to a surface of the image carrier, on a basis of a measurement result of the first torque and the second torque.
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公开(公告)号：US20230384989A1
公开(公告)日：2023-11-30
申请号：US18031578
申请日：2021-12-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kazunori TANAKA , Takuya MIYAMOTO , Koji SATO , Rui HAMABE , Kanako MORIMOTO
CPC classification number: G06F3/121 , G06T7/0004 , G06V10/44 , G06V20/50 , G06V10/7715 , G06T7/90 , G06V10/764 , G06F3/1208 , G06F3/1234 , G06V10/20 , G06T2207/10024 , G06T2207/30144
Abstract: An object of the present invention is to determine the cause of an image defect that occurs in an image forming device with high accuracy while suppressing the amount of calculation at a processor. A processor (80) determines the cause of an image defect on the basis of a test image read from an output sheet of an image forming device (2). The processor (80) generates a plurality of feature images by executing a feature extraction process on the test image. Further, the processor (80) uses each of the plurality of feature images as an input image and determines which of a plurality of cause candidates corresponding to the image defect the input image corresponds to by pattern recognition of the input image.
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Patent Agency Ranking
公开(公告)号：US20230033875A1
公开(公告)日：2023-02-02
申请号：US17814030
申请日：2022-07-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takuya MIYAMOTO , Kanako MORIMOTO , Rui HAMABE , Shiro KANEKO , Naomichi HIGASHIYAMA
Abstract: A feature-amount extraction unit generates a base feature-map group constituted by a plurality of base feature maps from an input image, applies a plurality of statistic calculations to the base feature maps in the base feature-map group, and generates a plurality of types of statistic maps. The inference unit derives inference results of segmentation for inference inputs based on the plurality of statistic maps. Each of the plurality of types of statistic calculations described above is processing of calculating a statistic with a specific window size and a specific calculation formula, and the plurality of types of statistic calculations are different from each other in at least either one of the window size and the calculation formula.
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公开(公告)号：US20220207853A1
公开(公告)日：2022-06-30
申请号：US17563355
申请日：2021-12-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takuya MIYAMOTO , Kazunori TANAKA , Kanako MORIMOTO , Rui HAMABE , Naomichi HIGASHIYAMA
IPC: G06V10/422 , G06V10/77 , G06N20/00
Abstract: An image recognition method includes a feature amount extracting step of generating, from an input image, a base feature map group including a plurality of base feature maps; an inferring step of deriving a plurality of inference results using each of a plurality of machine-learned inference devices for a plurality of inference inputs based on the base feature map group; and an integrating step of integrating the plurality of inference results by a specific manner to derive a final inference result, where each of the plurality of inference inputs has some or all base feature maps of the plurality of base feature maps, and each of the plurality of inference inputs has the some or all base feature maps that are different in part or whole from the some or all base feature maps of another inference input in the plurality of inference inputs.
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公开(公告)号：US20230260102A1
公开(公告)日：2023-08-17
申请号：US18031585
申请日：2021-12-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takuya MIYAMOTO , Kazunori TANAKA , Kanako MORIMOTO , Koji SATO , Rui HAMABE
CPC classification number: G06T7/0008 , G06T5/20 , G06T9/00 , G06V10/25 , G06V10/751 , G06T7/90 , G06V10/764 , G06T2207/10024 , G06T2207/20192 , G06T2207/30144
Abstract: An object of the present invention is to extract image defects from a test image for each type by a simple process. A processor (80) generates a first preprocessed image and a second preprocessed image by executing a main filter process with each of a horizontal direction and a vertical direction of the test image used as a processing direction. The main filter process is a process of converting the pixel value of each pixel of interest sequentially selected from the test image into a converted value obtained by a process of emphasizing the difference between the pixel values of an area of interest and the pixel values of two adjacent areas. The processor (80) extracts, as the image defects, a first singular part that is present in the first preprocessed image and is not common to both images, a second singular part that is present in the second preprocessed image and is not common to both images, and a third singular part that is common to both images.
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公开(公告)号：US20220210277A1
公开(公告)日：2022-06-30
申请号：US17563381
申请日：2021-12-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Rui HAMABE , Kazunori TANAKA , Kanako MORIMOTO , Takuya MIYAMOTO , Koji SATO
Abstract: The image processing apparatus includes: an abnormality detection unit configured to detect one or more abnormalities included in a target image and an abnormality exclusion processing unit configured to exclude a specific abnormality from the detected one or more abnormalities. In a case in which a detection area of a certain abnormality among the detected one or more abnormalities and a detection area of another abnormality overlap with each other and a type of the certain abnormality and a type of the another abnormality are different from each other, when brightness information of one of the certain abnormality and the another abnormality satisfies a specific condition, the abnormality exclusion processing unit excludes the one of the certain abnormality and the another abnormality from the detected one or more abnormalities.
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公开(公告)号：US20210263442A1
公开(公告)日：2021-08-26
申请号：US17178577
申请日：2021-02-18
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tamotsu SHIMIZU , Kazunori TANAKA , Kanako MORIMOTO , Shiro KANEKO
Abstract: An image forming apparatus includes a plurality of image forming units, a developing voltage power supply, a current detection unit, and a control unit. The image forming units form an image by superimposing a toner image of a same color and a same type, and substantially same development conditions are set to evenly divide an image density among the image forming units. The control unit detects whether there is an anomaly in the image forming unit based on detecting a DC component of developing current, being either of current flowing through a non-exposed portion of an image carrier during image formation, and current flowing through an exposed portion of the image carrier. When an anomaly is detected in any image forming unit, the control unit inhibits use of the image forming unit, and resets the development conditions to evenly divide an image density among the usable image forming units.
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