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11.发明授权公开(公告)号：US11504084B2
公开(公告)日：2022-11-22
申请号：US17306215
申请日：2021-05-03
Applicant: Konica Minolta, Inc.
Inventor： Tatsuya Takagi
Abstract: A radiographing control apparatus includes a hardware processor. A radiographic imaging apparatus is exposed to a radiation from an irradiating apparatus through the subject. The hardware processor retrieves pre-exposure image data which the radiographic imaging apparatus generates by performing a pre-exposure to the subject at a pre-exposure dose of less than a dose of a subsequent main exposure, and calculates a total dose required to obtain diagnostic image data to be used for diagnosis. The hardware processor outputs a main exposure dose based on the calculated total dose to the irradiating apparatus and the radiographic imaging apparatus. The hardware processor retrieves main exposure image data which the radiographic imaging apparatus generates by performing the main exposure to the subject at the main exposure dose, and combines the main exposure image data with the pre-exposure image data to generate the diagnostic image data.
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Patent Agency Ranking
公开(公告)号：US11176638B2
公开(公告)日：2021-11-16
申请号：US16432181
申请日：2019-06-05
Applicant: Konica Minolta, Inc.
Inventor： Tatsuya Takagi
Abstract: There is disclosed an image processing apparatus including a hardware processor which generates a highly resolved still image from a plurality of frame images obtained by continuously imaging a moving subject. The hardware processor analyzes each of the plurality of frame images to calculate a feature amount, and determines, on a basis of the calculated feature amount, a reference frame image which becomes a reference when generating the highly resolved still image from the plurality of frame images.
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公开(公告)号：US11160525B2
公开(公告)日：2021-11-02
申请号：US16692400
申请日：2019-11-22
Applicant: Konica Minolta, Inc.
Inventor： Tatsuya Takagi , Agus Suharno , Amai Shimizu
Abstract: An image processing apparatus includes a hardware processor that: calculates a representative signal value in a region where no signal value variations attributable to dynamic states of an object are present, in each of a plurality of frame images acquired by consecutively applying radiation onto the object a plurality of times, and extracts high-frequency components of changes over time in the calculated representative signal values; and corrects signal value variations attributable to a fact that an irradiation amount varies each time the radiation is applied, by subtracting the extracted high-frequency components from the plurality of frame images, respectively, or dividing the plurality of frame images by the extracted high-frequency components, respectively.
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14.发明授权公开(公告)号：US10776906B2
公开(公告)日：2020-09-15
申请号：US16058715
申请日：2018-08-08
Applicant: KONICA MINOLTA, INC.
Inventor： Ryohei Ito , Tatsuya Takagi
Abstract: A radiographic image processing device includes a hardware processor which sets a reference signal value in a range of a signal value of a pixel in a processing object region in a radiographic image, determines a conversion rate to convert a dynamic range in a high signal region and a conversion rate to convert a dynamic range in a low signal region respectively based on the reference signal value, determines a contrast modification rate which indicates an extent of processing of contrast modification in the signal region where the dynamic range is converted in the processing object region based on the reference signal value or the conversion rate, converts a dynamic range of a signal region in the processing object region based on the determined conversion rate, and performs contrast modification in the signal region in the processing object region based on the determined contrast modification rate.
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公开(公告)号：US20220117574A1
公开(公告)日：2022-04-21
申请号：US17501543
申请日：2021-10-14
Applicant: Konica Minolta, Inc.
Inventor： Nobuyuki Miyake , Tatsuya Takagi , Kentaro Hara , Ichirou Hamamoto
IPC: A61B6/00
Abstract: A radiation imaging system includes a first hardware processor. The first hardware processor executes control such that before main imaging is executed at a main dose, pre-imaging is executed at a pre-dose that is lower than the main dose. The first hardware processor derives an imaging condition for the main imaging based on a pre-image acquired in the pre-imaging, switches a control mode to one of a pre-image checking mode and a short-time imaging mode, and notifies which control mode between the pre-image checking mode and the short-time imaging mode is used to execute the control. The pre-image checking mode being a mode in which the pre-image is displayed after executing the pre-imaging. The short-time imaging mode being a mode in which the pre-image is not displayed after executing the pre-imaging before the main imaging.
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公开(公告)号：US10762384B2
公开(公告)日：2020-09-01
申请号：US15099944
申请日：2016-04-15
Applicant: Konica Minolta, Inc.
Inventor： Ryohei Ito , Tatsuya Takagi , Keita Yoshida
IPC: G06K9/62 , A61B6/00 , G06T5/50 , G06T7/00 , G06T5/40 , G06K9/20 , G06K9/60 , G06K9/36 , G06K9/46 , H04N5/32 , G06K9/78 , G06K9/80
Abstract: A radiation image capturing system includes a radiation image capturing apparatus, an irradiation apparatus and an image processing apparatus. The image processing apparatus generates a first radiation image of a subject based on a signal value generated by the radiation image capturing apparatus with no grid attached irradiated by the irradiation apparatus; performs a low-pass filter process on a pixel value of the first radiation image using a scattering kernel, thereby generating a low frequency image; estimates a body thickness of the subject based on the signal value; estimates a scattered ray content rate based on the body thickness; calculates a scattered ray component in the first radiation image based on the low frequency image and the scattered ray content rate; and subtracts the scattered ray component from the first radiation image, thereby generating a second radiation image.
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