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：US20240054617A1

公开(公告)日：2024-02-15

申请号：US18270897

申请日：2021-10-07

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Satoshi TSUCHIYA ,  Tatsuya ONISHI ,  Toshiyasu SUYAMA

IPC: G06T5/00 ,  A61B6/00

CPC classification number: G06T5/002 ,  A61B6/4291 ,  A61B6/5258 ,  G06T2207/10116 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: A control device 20 includes an image acquisition unit 203 configured to acquire a radiographic image obtained by irradiating a subject F with radiation and capturing an image of the radiation passing through the subject F, a noise map generation unit 204 configured to derive an evaluation value obtained by evaluating spread of a noise value from a pixel value of each pixel in the radiographic image on the basis of relationship data indicating a relationship between the pixel value and the evaluation value and generate a noise map that is data in which the derived evaluation value is associated with each pixel in the radiographic image, and a processing unit 205 configured to input the radiographic image and the noise map to a trained model 207 constructed in advance through machine learning and execute image processing of removing noise from the radiographic image.

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：US20240265508A1

公开(公告)日：2024-08-08

申请号：US18569288

申请日：2022-03-18

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuya ONISHI ,  Satoshi TSUCHIYA

IPC: G06T5/70

CPC classification number: G06T5/70 ,  G06T2207/20081 ,  G06T2207/20182

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 selection unit that selects a trained model from a plurality of trained models each of which is built in advance through machine learning using condition information including photodetector information indicating a type of photodetector, and a processing unit that inputs the optical image to the selected trained model and executes image processing of removing noise from the optical image.