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公开(公告)号：US20220207705A1
公开(公告)日：2022-06-30
申请号：US17558496
申请日：2021-12-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kanako Morimoto , Kazunori Tanaka , Koji Sato , Takuya Miyamoto , Rui Hamabe
Abstract: A processor determines an image defect in a test image obtained through an image reading process performed on an output sheet output by an image forming apparatus. The processor derives a vertical data string that is composed of data about horizontal representative values serving as representative values of a plurality of pixel values in each line in a horizontal direction in the test image. Moreover, the processor determines the presence or absence of at least one periodicity set in advance in the vertical data string by performing frequency analysis on the vertical data string. Furthermore, the processor determines the occurrence or non-occurrence and the cause of periodic density unevenness serving as a type of the image defect according to the determination result on the periodicity.
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公开(公告)号：US20220207702A1
公开(公告)日：2022-06-30
申请号：US17558350
申请日：2021-12-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kazunori Tanaka , Kanako Morimoto , Takuya Miyamoto , Koji Sato , Rui Hamabe
Abstract: A processor determines a cause of an image defect based on a test image that is obtained through an image reading process performed on an output sheet output from an image forming device. The processor generates an extraction image by extracting, from the test image, a noise point that is a type of image defect. Furthermore, the processor determines a cause of the noise point by using at least one of, in the extraction image: an edge strength of the noise point; a degree of flatness of the noise point; and a pixel value distribution of a transverse pixel sequence that is a pixel sequence traversing the noise point.
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公开(公告)号：US20220207694A1
公开(公告)日：2022-06-30
申请号：US17555871
申请日：2021-12-20
Applicant: KYOCERA Document Solutions Inc.
Inventor： Rui Hamabe , Kazunori Tanaka , Kanako Morimoto , Takuya Miyamoto , Koji Sato
IPC: G06T7/00
Abstract: An image processing apparatus includes an anomaly detecting unit, and an anomaly unification processing unit. The anomaly detecting unit is configured to detect anomalies included in a target image. The anomaly unification processing unit is configured to unify specific anomalies among the detected anomalies. Further, if a type of an anomaly among the detected anomalies is the same as a type of another anomaly among the detected anomalies, the anomaly unification processing unit (a) determines whether the anomaly and the other anomaly should be unified or not on the basis of a relationship between a position of the anomaly and a position of the other anomaly, and (b) unifies the anomaly and the other anomaly if it is determined that the anomaly and the other anomaly should be unified.
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公开(公告)号：US20220206425A1
公开(公告)日：2022-06-30
申请号：US17558505
申请日：2021-12-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takuya Miyamoto , Kazunori Tanaka , Kanako Morimoto , Koji Sato , Rui Hamabe
IPC: G03G15/00
Abstract: A processor generates an extraction image by extracting, from a test image, a target specific part that is a horizontal stripe extending in a horizontal direction or a noise point. The processor derives a vertical data sequence from a target area in the extraction image and converts the vertical data sequence to primary conversion data of a frequency domain. The processor converts, to secondary conversion data of a space domain, correction data that is obtained by removing, from the primary conversion data, data of frequency bands other than a particular frequency band corresponding to a target specific part that was determined as having periodicities. The processor classifies the target specific parts into periodic specific part and non-periodic specific part by comparing positions of the target specific parts with a peak position in a waveform represented by the secondary conversion data.
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公开(公告)号：US20160202642A1
公开(公告)日：2016-07-14
申请号：US14989821
申请日：2016-01-07
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kanako Morimoto
IPC: G03G15/16
CPC classification number: G03G15/1665 , G03G15/161 , G03G15/1675 , G03G2215/1661
Abstract: To remove toner, which is primarily transferred onto an intermediate transfer member, from the intermediate transfer member, a digital multifunction peripheral includes a first control unit that controls a second bias applicator to apply to a secondary transfer roller a bias of the opposite polarity to the charged toner when the toner passes through a position where the secondary transfer roller is placed, and a second control unit that, after the operation of the first control unit, controls a second bias applicator to apply to the secondary transfer roller a bias of the same polarity as the charged toner and controls a pre-brush bias applicator to apply to a pre-brush a bias of the opposite polarity to the toner.
Abstract translation: 为了从中间转印部件移除主要转印到中间转印部件上的调色剂，数字多功能外围设备包括第一控制单元，该第一控制单元控制第二偏压施加器以向二次转印辊施加相对极性的偏压 当调色剂通过放置二次转印辊的位置时的带电调色剂;以及第二控制单元，其在第一控制单元的操作之后控制第二偏压施加器以施加到二次转印辊上的偏压 作为带电调色剂的极性，并且控制预刷偏置施加器以将预涂刷到与调色剂相反极性的偏压。
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Patent Agency Ranking
公开(公告)号：US12141956B2
公开(公告)日：2024-11-12
申请号：US17558411
申请日：2021-12-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Rui Hamabe , Kazunori Tanaka , Takuya Miyamoto , Kanako Morimoto , Koji Sato
IPC: G06T7/00 , G03G15/00 , G03G15/01 , G06T7/13 , G06T7/90 , G06V10/22 , G06V10/24 , G06V10/36 , G06V10/44 , G06V10/56 , G06V10/98
Abstract: A processor determines a cause of an image defect based on a test image that is obtained through an image reading process performed on an output sheet output from an image forming device. The processor extracts a vertical stripe part extending along a sub scanning direction in the test image. Furthermore, the processor determines which of predetermined two types of cause candidates is a cause of the vertical stripe part, based on a distribution of a pixel value sequence along a main scanning direction that crosses the sub scanning direction, in a target part including the vertical stripe part in the test image.
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公开(公告)号：US12141954B2
公开(公告)日：2024-11-12
申请号：US17558343
申请日：2021-12-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kanako Morimoto , Kazunori Tanaka , Koji Sato , Takuya Miyamoto , Rui Hamabe
Abstract: A processor determines an image defect in a test image obtained through an image reading process performed on an output sheet output by an image forming apparatus. The processor creates an image to be processed including a horizontal line, extending in a horizontal direction, extracted from the test image. Furthermore, the processor determines the presence or absence of at least one periodicity set in advance in a vertical direction in the image to be processed and determines the cause of the horizontal line according to the determination result on the periodicity.
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公开(公告)号：US11715192B2
公开(公告)日：2023-08-01
申请号：US17558461
申请日：2021-12-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kanako Morimoto , Kazunori Tanaka , Koji Sato , Takuya Miyamoto , Rui Hamabe
CPC classification number: G06T7/0004 , G06K15/027 , G06K15/14 , G06T7/13 , G06T7/90 , G06V10/225 , G06T2207/10024 , G06T2207/30144
Abstract: A processor identifies an original drawing part that is originally drawn in a test image. Furthermore, the processor identifies a noise point in the test image. Furthermore, the processor determines which of predetermined two types of cause candidates is a cause of the noise point by determining a degree of overlapping between the original drawing part and the noise point. The two types of cause candidates are: waste toner dropping in which waste toner that has adhered to a transfer body that transfers a toner image to a sheet, is transferred to the sheet in the image forming device; and carrier developing in which magnetic carrier that has been mixed with toner is transferred to a sheet.
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公开(公告)号：US11709899B2
公开(公告)日：2023-07-25
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: G06F16/00 , G06F16/93 , G06F16/9038 , G06F16/9035
CPC classification number: 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：US11630409B2
公开(公告)日：2023-04-18
申请号：US17558338
申请日：2021-12-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kazunori Tanaka , Kanako Morimoto , Takuya Miyamoto , Koji Sato , Rui Hamabe
IPC: G03G15/00
Abstract: A processor selects a target sheet from a plurality of predetermined sheet candidates in accordance with selection information that is input via an input device. Furthermore, the processor derives feature information regarding a noise point from a target image that is obtained through an image reading process performed on an output sheet output from an image forming device, the noise point being a dot-like noise image included in the target image. Furthermore, the processor determines whether or not the noise point is a dot-like sheet noise by applying the feature information to a determination algorithm that corresponds to the target sheet, the sheet noise being included in a sheet of the output sheet itself, the determination algorithm being one of a plurality of determination algorithms that respectively correspond to the plurality of sheet candidates.
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