52 results about "Radiation imaging" patented technology

In order to support imaging of a radiographic imaging apparatus including a radiation source that emits radiation, and an optical camera (21) that is mounted on the radiation source and that captures an optical image (G1) of a subject in a direction from the radiation source, a processor (41) derives a relative angle between the radiation source and a target plane; and displays the optical image (G1) and an angle indicator representing the relative angle and a target angle on a display (25) mounted on the radiation source.

A radiographic imaging apparatus includes a plurality of pixels configured to convert radiation to electrical signals and a control section configured to determine an image capturing condition based on the electrical signals converted by the pixels and to start image capturing.

Disclosed is a radiation protection device provided for a radiographic imaging apparatus to shield radiation from being irradiated to a body side of a patient other than an imaging target, and a radiographic imaging apparatus including the same. The radiation protection device includes a fixing unit fixed to an arm unit of a radiographic imaging apparatus; an elevation unit coupled to the fixing unit to be movable along a first direction; a connecting unit coupled to the elevation unit to be rotatable in a second direction different from the first direction; and a shielding unit provided on one side of the connecting unit to shield radiation, and a radiographic imaging apparatus including the radiation protection device.

A radiation imaging apparatus includes a plurality of pixels, each including a conversion element configured to convert radiation or light into a charge and a switch element, is arranged in a matrix, a driving unit configured to output driving signals that drive the switch elements, and a reading unit configured to read a charge from a pixel to which a driving signal is supplied and generate an image data signal, wherein a first driving signal is output to a first driving line and a second driving signal is output to a second driving line adjacent to the first driving line by shifting timings to reduce line noise along the driving lines, and wherein an image data signal is generated by totaling a first charge read from a pixel by outputting the first driving signal and a second charge read from a pixel by outputting the second driving signal.

To improve convenience for an engineer with a simple configuration and reduce a burden in selecting a lighting field in imaging using a detection device mounted with an automatic exposure control (AEC) function inside.SOLUTION: A radiographic apparatus includes: display control means for displaying, in a display unit, a candidate of a lighting field for executing automatic exposure control in a radiation detection device for picking up a radiation image by detecting a radiation; and acquisition means for acquiring information at least including information on the shape of the radiation detection device, the number of arrangements of the lighting field in the radiation detection device, a site to be imaged, and past imaging information. The display control means displays, in the display unit, the candidate of the lighting field determined on the basis of the information acquired by the acquisition means.SELECTED DRAWING: Figure 1

This invention relates to a radiation imaging apparatus and a radiation imaging system. The radiation imaging apparatus includes: a pixel; a driver that controls the pixel via a drive line; a readout circuit that reads signals from the pixel via column signal lines; and a detector that detects radiation exposure information separately from a radiation image. Each of the column signal lines is connected to pixels arranged in two pixel columns. The pixel includes a first pixel and a second pixel with different sensitivities. The first pixel and the second pixel are connected to a common column signal line and to different drive lines. When detecting the radiation exposure information, the driver drives the first pixel and the second pixel at different timings, and the detection circuit detects the radiation exposure information based on signals output from the first pixel and the second pixel.

A radiographic imaging apparatus of the present disclosure includes an image outputter outputting a first radiographic image included in continuous radiographic images obtained by radiographic imaging of a subject, an image brightness information extractor obtaining brightness information from the first radiographic image, a first irradiation condition calculator determining a first irradiation condition based on the brightness information, an irradiation controller controlling a radiation dose based on the first irradiation condition, a second irradiation condition calculator determining a second irradiation condition based on a second radiographic image generated based on the first irradiation condition when an imaging site of the subject is fixed, and a dose reducer reducing or maintaining the radiation dose based on the second irradiation condition.

The application discloses a preparation method and application of a rare earth cluster scintillator, and the scintillator material is prepared from 4,7-diphenyl-1,10-phenanthroline, 4-tert-butyl benzoic acid, titanium tetraisopropoxide and europium(III) acetate by a solvothermal reaction. The rare earth cluster scintillator material Eu2Ti4 prepared in the application has excellent flexibility and can be used for flexible imaging of non-planar materials. The minimum detection limit of the obtained scintillator is 32.89 nGy s ‑1 , which is 167 times lower than a standard medical diagnostic dose. The rare earth cluster scintillator process is simple, has high yield and fast crystal growth. The limit resolution of the Eu2Ti4-PDMS scintillation screen in the application exceeds 31 LP mm ‑1 at different temperatures, and the scintillation screen has excellent high-resolution X-ray radiation imaging capability and can be used as an ideal visualization tool for high-performance radiation imaging in extreme environments.

The present application relates to the technical field of optical axis calibration, and particularly relates to a laser range finder collimation system using a CCD matrix, which comprises a hollow corner reflector, an off-axis parabolic metal reflector, a rotating reflector, a first diagonal beam-splitting reflector, a second diagonal beam-splitting reflector, a laser radiation imaging instrument, a CCD matrix, a computer and an LED emitter. The present application solves the problem of high-precision alignment of the laser emission channel and the laser receiving channel of the laser range finder, and can be applied to the optical axis calibration of most photoelectric devices and lasers, quickly aligns the channels in different spectral ranges, and can use continuous and pulsed lasers for operation. The present application can solve the problem of spatial position coordination of focusing on a single component and the channel axis, and can realize optical axis calibration through the configuration of the hollow corner reflector and the rotating reflector, and can realize optical axis offset visualization and quantification through the cooperation of the laser radiation imaging instrument and the CCD matrix, thereby simplifying the collimation process and improving the precision of the device collimation axis.

To enable the acquisition of information regarding pleural adhesions easily and accurately with low radiation exposure. [Solution] According to the control unit of the diagnostic console, a dynamic image of the chest obtained by dynamic radiography is acquired, and information regarding pleural adhesion is generated based on the amount of movement of the region in the lung area that includes at least the region adjacent to the rib cage in the acquired dynamic image, and the generated information regarding pleural adhesion is displayed and output by the display unit.

A method for forming radiographic images of oral anatomy of a subject exposes the subject to radiation along a radiation path. At each position on a detector array in the radiation path, the number of photons received from the radiation through the subject are counted, wherein the detector maintains a first photon count for photons having a first energy above a first threshold energy value and at least a second photon count for photons having a second energy above a higher threshold energy value. One or more materials in the mouth of the subject are identified by performing material decomposition processing, according to two or more basis materials, and distinguishing between natural oral anatomy features and fabricated materials in the mouth of the subject according to the material decomposition processing. Conditioned image content enhances the distinction between natural oral anatomy features and fabricated material according to the material decomposition.

An image processing apparatus includes an image obtaining unit configured to obtain a first radiographic image and a second radiographic image, the first radiographic image being obtained by irradiating a subject with radiation of a first energy, the second radiographic image being obtained after the first radiographic image by irradiating the subject with radiation of a second energy different from the first energy, an estimation unit configured to estimate information about an afterimage of the first radiographic image in the second radiographic image based on information about a soft tissue region of the subject in the first radiographic image and the second radiographic image, and a correction unit configured to correct the second radiographic image using the information about the afterimage.

To provide a radiation detector capable of reducing image quality degradation.SOLUTION: A radiation detector includes: a pixel region in which a plurality of pixels are arranged; a first output line connected to a first pixel; a second output line connected to a second pixel; a first signal processing circuit connected to the first output line; and a second signal processing circuit connected to the second output line. The first signal processing circuit includes: a first driving circuit connected to the first output line; a first AD conversion circuit; a first holding circuit; and a first horizontal scanning circuit, and includes a second driving circuit connected to the second output line; a second AD conversion circuit; and a second holding circuit. The first signal processing circuit is disposed between the pixel region and the second signal processing circuit in plan view, and the first horizontal scanning circuit is disposed between the pixel region and the second AD conversion circuit in plan view.SELECTED DRAWING: Figure 2

An image processing apparatus includes an acquisition unit configured to acquire a moving image obtained using a radiation detector, a first image processing unit configured to perform first image processing on the acquired moving image, the first image processing including noise reduction processing using a first machine learning model and processing for outputting the acquired moving image to a display system, and a second image processing unit configured to perform second image processing on the acquired moving image, the second image processing including noise reduction processing using a second machine learning model and processing for outputting the acquired moving image to a system different from the display system.

The present invention provides a radiographic apparatus comprising: a main body; a C-arm frame connected to the main body; a radiation generator provided at one end of the C-arm frame; a radiation detector provided at the other end of the C-arm frame; a moving unit for transversely moving the C-arm frame from a first point to a second point in a direction parallel to the main body; a scanning unit for rotating the C-arm frame in a direction perpendicular to the main body; and a control unit for controlling the moving unit and the scanning unit.

The objective is to obtain an information processing device, an information processing method, and an information processing program that can shorten the time required to retrieve calibration data for radiation detectors. [Solution] The information processing device stores in a storage device the key, which contains a string of characters relating to the conditions for capturing radiographic images, and the value, which contains calibration data for the radiation detector of the radiographic imaging device that captures radiographic images, in association with the key.

In order to support imaging of a radiographic imaging apparatus including a radiation source that emits radiation, and an optical camera that is mounted on the radiation source and that captures an optical image of a subject in a direction from the radiation source, a processor derives a relative angle between the radiation source and a target plane; and displays the optical image and an angle indicator representing the relative angle and a target angle on a display mounted on the radiation source.

A radiation imaging apparatus that images a radiation image includes a radiation detector that detects radiation; a supporter that includes charging material and that supports the radiation detector, a conductive layer provided between the radiation detector and the supporter, an electronic circuit; and an electric wiring that passes a lateral surface of the supporter and that connects the radiation detector with the electronic circuit. The conductive layer is positioned on a surface of the supporter outside a plan view region of the radiation detector in a position facing at least a portion of the electric wiring.

A linear CT imaging system and scanning imaging method are provided, relating to the fields of radiation imaging and nondestructive testing. The system includes: a transport device comprising a first scanning channel and at least one second scanning channel, the transport device being used to transport a scanned object through the first scanning channel and at least one second scanning channel, the transport direction of the first scanning channel and the transport direction of the at least one second scanning channel being the same; a first scanning segment comprising a first scanning device and the first scanning channel; and at least one second scanning segment comprising a second scanning device and a second scanning channel; the first scanning device is configured to have relative motion with the scanned object in a first direction, and the second scanning device is configured to have relative motion with the scanned object in a second direction, the first direction being the same as the transport direction of the first scanning channel, and the second direction being different from the transport direction of the at least one second scanning channel.

The present invention aims to suppress data loss in a radiation imaging device having a structure in which multiple partition members are attached to a sensor substrate in a tiling manner. [Solution] The device comprises a plurality of partition phosphor members, each having a plurality of light-emitting parts comprising a partition wall having an opening region and a phosphor located in the opening region, and a plurality of photoelectric conversion members, each having a plurality of light-receiving parts comprising a photoelectric conversion element, wherein the plurality of partition phosphor members are arranged facing the photoelectric conversion members and side by side, and the width of each partition phosphor member in at least one direction in the side-by-side direction of the light-emitting part adjacent to the side-by-side part of the partition phosphor member is smaller than the width of the other light-emitting parts.

It accurately reduces crosstalk in radiographic images. [Solution] A radiation imaging device comprising a plurality of pixels, a drive unit, and a readout unit, wherein during radiation irradiation, a first operation is performed in which drive signals are sequentially supplied to the readout unit to generate a first signal, and a second operation is performed in which, following the first operation, the readout unit generates a second signal without supplying a drive signal, and the first signal is corrected with the second signal to generate a radiation image data signal.

The present invention provides a radiographic imaging apparatus comprising: a C-arm frame; a radiation generator provided at one end of the C-arm frame; a radiation detector provided at the other end of the C-arm frame; an elevation unit configured to raise and lower the C-arm frame; a display connected to the elevation unit and configured to display images detected by the radiation detector; and a control unit configured to control the position of the display as the C-arm frame is raised or lowered.

In semiconductor devices, there has been a need for technologies that are advantageous in reducing the electrical resistance of connections between conductive components such as vias and plugs. [Solution] A semiconductor device comprising: a semiconductor layer; an insulating layer laminated on the semiconductor layer; a conductive through-via extending through the semiconductor layer and into the interior of the insulating layer, having a recess at its end on the insulating layer side; and a conductive connecting member disposed in the insulating layer, the part of which of its side surface abuts the inner surface of the recess of the through-via, wherein the part of the side surface of the connecting member abutting the through-via extends from the insulating layer side to the semiconductor layer side with respect to the extension line of the interface between the insulating layer and the semiconductor layer.

An information processing apparatus includes, in a key, character strings related to imaging conditions for a radiation image, includes, in a value, calibration data of a radiation detector provided in a radiographic imaging apparatus that captures the radiation image, and stores the key and the value in association with each other in a storage device.

This application provides a linear CT imaging system and scanning imaging method based on multiple linear scanning trajectories, relating to the fields of radiation imaging and non-destructive testing. The system includes: a transport device for moving the scanned object along a predetermined m-segment linear scanning trajectory, wherein at least two segments of the m-segment linear scanning trajectory intersect and form a first preset angle, where m is a positive integer greater than or equal to 2; n scanning segments, each including at least one X-ray source and at least one detector, the n scanning segments being arranged at intervals along the m-segment linear scanning trajectories, where n is a positive integer greater than or equal to m; wherein, on both sides of each linear scanning trajectory, at least one X-ray source and detector for that scanning segment are respectively arranged, the X-ray source emitting a X-ray beam, and the detector detecting the X-ray beam emitted by the X-ray source and passing through the scanned object. This application enables the detection of large-volume or structurally heterogeneous scanned objects.

An imaging support apparatus includes a display, and a processor, in which the processor is configured to: acquire distance information representing an imaging distance in a direction from a radiation source toward a subject; acquire an optical image in the direction from the radiation source toward the subject; derive a difference distance image in which a display mode of each pixel differs in accordance with a difference between the imaging distance and a target distance; and superimpose the difference distance image on the optical image to display a superimposed image on a display.

The application discloses a surgical microscope diagnosis and treatment system, which comprises a microscopic observation module, a storage module and an enhanced information image injection module, the microscopic observation module is used for observing a target object to be observed; the storage module stores a radiation imaging three-dimensional structure digital image of the target object; the enhanced information image injection module is used for projecting the radiation imaging three-dimensional structure digital image in the form of an optical image into an observation field of view of the microscopic observation module, and superimposing the optical image with an optical image under a microscope in the observation field of view of the microscopic observation module to form a superimposed optical image. The surgical microscope diagnosis and treatment system can superimpose an additional information image on an optical image under a microscope in the microscope through a projection mode, an operator can conveniently and flexibly observe the target object during an operation, and can quickly check various data information related to the operation.

An information processing apparatus, which processes an image obtained by radiation imaging, comprises a display control unit configured to cause a display to display a protocol selection portion that displays first imaging for bone mineral density measurement and second imaging different from the first imaging for the bone mineral density measurement in an identifiable and selectable manner before the radiation imaging.