公开(公告)号：US20240257317A1

公开(公告)日：2024-08-01

申请号：US18290219

申请日：2022-03-18

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Satoshi TSUCHIYA ,  Tatsuya ONISHI

IPC: G06T5/60 ,  G06T5/70 ,  G06T7/00

CPC classification number: G06T5/60 ,  G06T5/70 ,  G06T7/0004 ,  G06T2207/10056 ,  G06T2207/20081 ,  G06T2207/30164 ,  G06T2207/30168

Abstract: An optical image processing module includes an image acquisition unit that acquires an optical image obtained by capturing an image of light from a target object, a noise map generation unit that derives a standard deviation of noise values from a pixel value of each pixel in the optical image on the basis of relationship data indicating a relationship between the pixel value and the standard deviation of noise values obtained by evaluating spread of the noise value and generates a noise map that is data in which the derived standard deviation of noise values is associated with each pixel in the optical image, and a processing unit that inputs the optical image and the noise map to a trained model built in advance through machine learning and executes image processing of removing noise from the optical image.

公开(公告)号：US20240210331A1

公开(公告)日：2024-06-27

申请号：US18576210

申请日：2022-04-06

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuya ONISHI ,  Toshiyasu SUYAMA ,  Satoshi TSUCHIYA

IPC: G01N23/04 ,  G01N23/083 ,  G01T1/20 ,  G06T5/70 ,  G06T7/00

CPC classification number: G01N23/04 ,  G01N23/083 ,  G01T1/20184 ,  G06T5/70 ,  G06T7/0012 ,  G01N2223/3308 ,  G01N2223/401 ,  G06T2207/10116 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: An image acquiring device includes a camera that scans radiation passing through a subject in one direction and captures an image of the radiation to acquire an X-ray image, a scintillator layer provided on the camera to convert X-rays into light, and a control device that executes noise removal processing of removing noise from the X-ray image. The camera includes N (N is an integer equal to or greater than 2) pixels arrayed in a direction orthogonal to the one direction to detect the light and output detection signals, and a readout circuit that outputs the X-ray image by outputting the detection signal for each of the N pixels. The scintillator layer includes P (P is an integer equal to or greater than 2) scintillator units disposed separately to correspond to the N pixels and a separation unit disposed between the P scintillator units.

公开(公告)号：US20230296535A1

公开(公告)日：2023-09-21

申请号：US18201402

申请日：2023-05-24

Applicant: Hamamatsu Photonics K.K.

Inventor： Mototsugu SUGIYAMA ,  Tatsuya ONISHI

IPC: G01N23/083 ,  G01N23/04 ,  G01N23/18

CPC classification number: G01N23/083 ,  G01N23/04 ,  G01N23/18 ,  G01N2223/505

Abstract: An image acquisition system includes a radiation source configured to output radiation toward an object, a rotating stage configured to rotate the object around a rotation axis, a radiation camera having an input surface to which the radiation transmitted through the object is input and an image sensor capable of TDI control, and an image processing apparatus configured to generate a radiographic image of the object at an imaging plane P based on the image data. The angle formed between the rotation axis of the rotating stage and the input surface of the radiation camera is set in accordance with the FOD which is the distance between the radiation source and an imaging plane in the object. The radiation camera is configured to perform TDI control in the image sensor in synchronization with the rotational speed of the object rotated by the rotating stage.

公开(公告)号：US20190003990A1

公开(公告)日：2019-01-03

申请号：US16062726

申请日：2016-12-08

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuya ONISHI

IPC: G01N23/083 ,  G01N23/18 ,  G01T1/20 ,  G01T7/00

CPC classification number: G01N23/083 ,  G01N23/087 ,  G01N23/18 ,  G01T1/20 ,  G01T1/2018 ,  G01T7/00

Abstract: An X-ray detection device is a device that detects X-rays having transmitted through a test subject, and comprises a filter that attenuates some of X-rays, a detector that detects the transmitted X-rays partially attenuated by the filter, a housing, and a holder that has one slit. The detector includes a line sensor, and a line sensor disposed in parallel and close to the line sensor. The holder holds the filter at a predetermined position so that the filter can cover a part of the slit, and the line sensor detects the X-rays attenuated by the filter.

公开(公告)号：US20230135988A1

公开(公告)日：2023-05-04

申请号：US17918380

申请日：2021-04-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuya ONISHI ,  Toshiyasu SUYAMA ,  Satoshi TSUCHIYA

IPC: G01T1/208 ,  G01N23/04 ,  G01N23/083

Abstract: A image acquiring device includes a camera configured to scan radiation passing through a target object in one direction and acquire an X-ray image, a scintillator configured to convert the X-rays into light, and a control device configured to input the X-ray image to a trained model constructed through machine learning in advance and execute a noise removal process. The camera includes a scan camera in which pixel lines each having M pixels arranged in one direction are configured to be arranged in N columns in a direction orthogonal to one direction and which is configured to output a detection signal for each of the pixels, and a readout circuit configured to output the X-ray image by adding the detection signals output from at least two pixels for each of the pixel lines of N columns in the scan camera and sequentially outputting the added N detection signals.

公开(公告)号：US20220291150A1

公开(公告)日：2022-09-15

申请号：US17829453

申请日：2022-06-01

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Mototsugu SUGIYAMA ,  Tatsuya ONISHI

IPC: G01N23/083 ,  G01N23/04 ,  G01N23/18

Abstract: An image acquisition system includes a radiation source configured to output radiation toward an object, a rotating stage configured to rotate the object around a rotation axis, a radiation camera having an input surface to which the radiation transmitted through the object is input and an image sensor capable of TDI control, and an image processing apparatus configured to generate a radiographic image of the object at an imaging plane P based on the image data. The angle formed between the rotation axis of the rotating stage and the input surface of the radiation camera is set in accordance with the FOD which is the distance between the radiation source and an imaging plane in the object. The radiation camera is configured to perform TDI control in the image sensor in synchronization with the rotational speed of the object rotated by the rotating stage.

公开(公告)号：US20230125182A1

公开(公告)日：2023-04-27

申请号：US17918178

申请日：2021-04-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuya ONISHI ,  Toshiyasu SUYAMA

IPC: A61B6/00 ,  G06T5/00

Abstract: A control device includes an input unit configured to accept an input of condition information indicating either operating conditions of a source of X-rays when the X-rays are radiated to capture an image of a target object or imaging conditions during capturing an image of the target object, a calculation unit configured to calculate average energy of the X-rays passing through the target object on the basis of the condition information, and a narrowing unit configured to narrow down candidates for a trained model from a plurality of trained models constructed through machine training in advance using image data on the basis of the average energy.

公开(公告)号：US20200292718A1

公开(公告)日：2020-09-17

申请号：US16890325

申请日：2020-06-02

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Mototsugu SUGIYAMA ,  Tatsuya ONISHI ,  Toshiyasu SUYAMA

IPC: G01T1/20 ,  G01T7/08 ,  G06T5/00

Abstract: A radiation image acquisition system includes a radiation source that outputs radiation toward an object, a scintillator that has an input surface to which the radiation output from the radiation source and transmitted through the object is input, converts the radiation input to the input surface into scintillation light, and is opaque to the scintillation light, an image capturing means that includes a lens portion focused on the input surface and configured to image the scintillation light output from the input surface and an image capturing unit configured to capture an image of the scintillation light imaged by the lens portion and outputs radiation image data of the object A, and an image generating unit that generates a radiation image of the object based on the radiation image data output from the image capturing means.

公开(公告)号：US20180364370A1

公开(公告)日：2018-12-20

申请号：US16062369

申请日：2016-12-08

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuya ONISHI

IPC: G01T1/20 ,  G01N23/04 ,  G01N23/083 ,  G01T1/24

Abstract: An X-ray detection device is a device detecting X-rays having transmitted through a test subject, and comprises a filter member including a filter that attenuates some of X-rays, a detector that detects the X-rays partially attenuated by the filter, and a housing that places the detector therein. The housing includes a principal surface including a slit capable of going through the X-rays, and a side surface including an opening which extends in the direction orthogonal to the principal surface and through which the filter can be inserted. The filter of the filter member is disposed in the housing so as to cover a line sensor of the detector and a scintillator in a state of being apart from the detector.

公开(公告)号：US20180306931A1

公开(公告)日：2018-10-25

申请号：US15764439

申请日：2016-07-29

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Mototsugu SUGIYAMA ,  Tatsuya ONISHI ,  Toshiyasu SUYAMA

IPC: G01T1/20 ,  G01T7/08 ,  G06T5/00

Abstract: A radiation image acquisition system includes a radiation source that outputs radiation toward an object, a scintillator that has an input surface to which the radiation output from the radiation source and transmitted through the object is input, converts the radiation input to the input surface into scintillation light, and is opaque to the scintillation light, an image capturing means that includes a lens portion focused on the input surface and configured to image the scintillation light output from the input surface and an image capturing unit configured to capture an image of the scintillation light imaged by the lens portion and outputs radiation image data of the object A, and an image generating unit that generates a radiation image of the object based on the radiation image data output from the image capturing means.