JP6849336B2 - Radiation imaging device and radiation imaging system - Google Patents

Description

The present invention relates to a radiation imaging device and a radiation imaging system.

Radiation imaging devices using a radiation detector that detects radiation such as X-rays are widely used in fields such as industrial and medical applications. The radiation imaging device acquires an electric signal based on the radiation detected by the radiation detector and obtains radiation image data. Then, the radiation imaging device performs a plurality of correction processes on the radiation image data, and then outputs the processed radiation image data to an external control device. The control device displays the radiation image on the display unit after performing image processing on the acquired radiation image data. The user looks at the radiographic image displayed on the display unit and determines whether or not the image is lost or re-photographed.

In addition, the radiation imaging device can acquire maintenance data and output it to an external device. The user or the like of the radiation imaging device can estimate the defective part based on the maintenance data.

Patent Document 1 discloses an X-ray CT apparatus that acquires output data of a radiation detector in a state where no radiation is irradiated when the apparatus is activated as maintenance data and transmits the output data to a computer for maintenance.

Japanese Unexamined Patent Publication No. 2006-75387

However, in Patent Document 1, when it is determined that there is a defect in the device or an abnormality in the image quality by looking at the radiation image displayed on the display unit, a method for identifying the cause has not been sufficiently examined. In particular, since a plurality of correction processes are performed on a radiation image, it is difficult to identify the cause of the defect at which stage from the detection of radiation to the output of the radiation image after the correction process. ..

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a technique for facilitating analysis of defects that occur during photographing.

The radiation imaging system of the present invention includes a radiation imaging device that detects radiation emitted from a radiation source, a first control device that controls imaging operations, and a second control device that performs image processing on captured images. , a radiation imaging system with the radiation imaging apparatus, a correction processing unit that performs a plurality of correction processing different radiation image data based on the detected radiation, is used in the correction processing of the plurality of correction correction includes a storage unit for storing data, and sends the corrected image data to which the plurality of correction processing has been performed to the second control device, the transmission of the corrected image data to the second control device after, the first control device, as data for failure analysis of the radiation imaging system, wherein transmitting at least one of the correction data among the correction data to be used in each correction process, and wherein the.

According to the present invention, it is possible to facilitate the analysis of defects that occur during photographing.

It is a figure which shows the radiation imaging system in 1st Embodiment. It is a figure which shows the radiation imaging apparatus in 1st Embodiment. It is a figure which shows the radiation detection part of the radiation image pickup apparatus in the 1st Embodiment. It is a figure which shows the imaging control part of the radiation imaging apparatus in 1st Embodiment. It is a figure which shows the correction processing part of the radiation imaging apparatus in 1st Embodiment. It is a flowchart which shows the correction process in 1st Embodiment. It is a figure which shows the output operation of the correction data in 1st Embodiment. It is a figure which shows the output operation of the correction data in the 2nd Embodiment. It is a figure which shows the imaging control part of the radiation imaging apparatus in 3rd Embodiment. It is a figure which shows the output operation of the correction data in 4th Embodiment. It is a figure which shows the output operation of the correction data in 5th Embodiment.

(First Embodiment)
The radiation imaging system of each embodiment will be described below with reference to the drawings. FIG. 1 is a diagram showing a radiation imaging system according to the first embodiment.

As shown in FIG. 1, the radiation imaging system 10 includes a radiation imaging device 100, a first control device 101, a first display device 102, and a first input device 103. Further, the radiation imaging system 10 includes a second control device 111, a second display device 112, and a second input device 113. Further, the radiation imaging system 10 includes a relay device 120, a radiation generator 121, a radiation source 122, and a communication line 123.

The radiation imaging device 100 can communicate with a plurality of control devices. The radiation imaging device 100 is connected to the first control device 101 via the relay device 120 and communicates with the first control device 101. The radiation imaging device 100 is connected to the second control device 111 by a communication line 123 and communicates with the second control device 111.

The first control device 101 is connected to the radiation imaging device 100 and the second control device 111 via the relay device 120. For example, the relay device 120 is a switching hub. The first control device 101 communicates with the radiation imaging device 100 and the second control device 111 via the relay device 120.

The first control device 101 controls the imaging operation of the entire radiation imaging system 10 including the irradiation of radiation. The first control device 101 is connected to the radiation generator 121. The first control device 101 collects various data for defect analysis from the radiation imaging device 100. Further, the first control device 101 is connected to the first display device 102 and the first input device 103.

The first display device 102 is a device that displays a GUI or the like, and a display or the like is used.

The first input device 103 is a device for inputting an instruction from an operator, and various input devices such as a photographing switch, a keyboard, and a touch panel for inputting the timing of irradiation are used. The first display device 102 and the first input device 103 may be integrally configured.

The second control device 111 performs image processing on the image transmitted from the radiation imaging device 100 via the communication line 123. The second control device 111 and the radiation imaging device 100 communicate with each other by, for example, a camera link or optical communication. The second control device 111 causes the second display device 112 to display the image-processed radiographic image data.

The second display device 112 is a device that displays image-processed radiographic image data or the like, and a display or the like is used. The second input device 113 is a device that receives an input of an instruction from an operator, and various input devices such as a keyboard and a touch panel are used. The second display device 112 and the second input device 113 may be integrally configured.

Further, the radiation imaging system 10 can independently perform data collection control for defect analysis and image processing control, which will be described later, by individually providing a plurality of control devices. Therefore, the radiation imaging system 10 can easily control the entire system. Further, the radiation imaging system 10 has a communication path of the second control device 111 for image processing in which the communication speed and the processing speed are limited, and a communication path of the first control device 101 for collecting data for defect analysis. By separating from and, it is possible to suppress the influence of communication delay and the like on the communication path of the second control device.

Next, the operation of each part when taking an image using the radiation imaging system will be described. First, the operator inputs the subject information such as the subject's ID and name into the first control device 101 via the first input device 103. Then, the operator sets the shooting mode based on the shooting technique and the shooting portion.

Here, the shooting mode includes at least a still image shooting mode and a moving image shooting mode. In the moving image shooting mode, an image displaying the movement of the subject can be acquired by repeating the display from the irradiation on the display device within a specified time. Further, the moving image shooting mode includes a plurality of shooting modes in which the detection sensitivity (amplification rate) and the frame rate of the radiation imaging device are different.
After setting the imaging mode, the operator performs relative alignment of the subject, the radiation source 122, and the radiography apparatus 100. Then, the operator inputs the start timing of radiation irradiation via the first input device 103. When the start timing of radiation irradiation is input, the first control device 101 controls the radiation generator 121, and radiation is emitted from the radiation source 122 toward the patient. The irradiated radiation passes through the patient and enters the radiation imaging device 100. The radiation imaging device 100 acquires a digital signal according to the incident radiation to obtain radiation image data. The obtained radiographic image data is transferred to the second control device 111 after performing offset correction, gain correction, defect correction, noise reduction processing, and the like. The second control device 111 controls the received radiation image data (corrected image data) to be displayed on the second display device 112 after image processing.

FIG. 2 is a diagram showing a radiation imaging device 100. As shown in FIG. 2, the radiation imaging device 100 includes a radiation detection unit 200, an imaging control unit 300, a correction control unit 400, a communication unit 500, and a power supply unit 600.

The radiation detection unit 200 has a function of detecting the radiation emitted from the radiation source 122.

The imaging control unit 300 performs integrated control of the entire system of the radiation imaging device 100, such as drive control of the radiation detection unit 200, control of the correction processing unit 400, and control of the communication unit 500 with the control device.

The correction processing unit 400 performs a plurality of different correction processes on the radiation image data generated based on the radiation detected by the radiation detection unit 200. Here, the plurality of correction processes different from each other include offset correction, gain correction, defect correction, noise reduction, and the like.

The communication unit 500 includes a first communication circuit 501 and a second communication circuit 502. The first communication circuit 501 communicates with the first control device 101, and the second communication circuit 502 communicates with the second control device 111. Further, the first communication circuit 501 and the second communication circuit 502 communicate with the first control device 101 and the second control device 111 by communication paths different from each other. Therefore, when the radiation imaging device 100 transmits the radiation image data and the correction data to the first control device 101 and the second control device 111, the communication method can be selected according to the data to be transmitted. It is possible. The radiation imaging device 100 and the first control device 101 communicate with each other via, for example, Ethernet (registered trademark). By communicating via Ethernet, the communication unit 500 can share with other command communication and communication paths for transmitting and receiving between the radiation imaging device 100 and the first control device 101. Further, the communication unit 500 may transmit the correction data to be transmitted to the first control device 101 in a highly versatile file format different from the radiographic image data to be transmitted to the second control device 111.

Although the communication unit 500 has been described as having a first communication circuit 501 and a second communication circuit 502, the communication unit 500 is not limited to this, and the communication unit 500 includes three or more communication circuits and has three or more communication circuits. It may be configured to communicate independently with the control device of. At this time, the radiation imaging device 100 transmits the correction data to the designated control device. Further, the communication unit 500 includes only one communication circuit (that is, without using the communication line 123), and the radiation imaging device 100 transmits radiation image data to the second control device 111 via the relay device 120. May be. Further, the communication unit 500 may be configured to include only one communication circuit and communicate with three or more control devices via the relay device 120.

The power supply unit 600 includes a circuit for supplying electric power to each unit of the radiation imaging device 100.

Next, a configuration example of the radiation detection unit 200 will be described with reference to FIG. The radiation detection unit 200 includes a sensor unit 210, a drive circuit 220, and a read circuit 230. The sensor unit 210 is composed of a plurality of pixels 211 arranged in a two-dimensional array so as to form a plurality of rows and a plurality of columns. Each of the plurality of pixels 211 includes a conversion element 212 and a switch element 213. The conversion element 212 converts the incident radiation into electric charges and accumulates the electric charges. The conversion element 212 may be composed of a scintillator that converts radiation into visible light and a photoelectric conversion element that converts visible light into electric charge. Further, the conversion element 212 may directly convert radiation into electric charges. The switch element 213 transfers the electric charge accumulated in the conversion element 212 to the signal line 214. The switch element 213 is composed of a transistor such as a TFT. The switch element 213 has a control terminal, and is turned on when an on voltage is supplied to the control terminal, that is, is in a conductive state, and is turned off when an off voltage is supplied to the control terminal, that is, is not. It becomes a conductive state.

A bias voltage is supplied from the power supply unit 600 to one terminal of the conversion element 212 via the bias wire 216. The other terminal of the conversion element 212 is connected to the signal line 214 via the switch element 213. The control terminal of the switch element 213 is connected to the drive line 215. A plurality of drive lines 215 extending in the row direction (horizontal direction in FIG. 3) are arranged side by side in the column direction (vertical direction in FIG. 3) in the sensor unit 210. The control terminals of the switch element 213 of the pixel 211 included in the same line are commonly connected to each drive line 215. Further, a plurality of signal lines 214 extending in the column direction are arranged side by side in the row direction in the sensor unit 210. One main terminal of the switch element 213 of the pixel 211 included in the same row is commonly connected to each signal line 214.

The drive circuit 220 drives the sensor unit 210 according to a control signal supplied from the imaging control unit 300. Specifically, the drive circuit 220 supplies a drive signal to the control terminals of each switch element 213 through the drive line 215. The drive circuit 220 turns on the switch element 213 by turning the drive signal on, and turns off the switch element 213 by turning the drive signal off. When the switch element 213 is turned on, the electric charge accumulated in the conversion element 212 is transferred to the signal line 214.

The reading circuit 230 reads the electric charge from the sensor unit 210 according to the control signal supplied from the control unit 300, generates a signal corresponding to the electric charge, and supplies this signal to the correction processing unit 400. The readout circuit 230 includes a sample hold circuit 231, a multiplexer 232, an amplifier 233, and an A / D converter 234. The sample hold circuit 231 holds the electric charge read from the conversion element 212 in pixel row units. The multiplexer 232 sequentially takes out one row of pixels held in the sample hold circuit 231 and supplies the pixels to the amplifier 233. The amplifier 233 amplifies the supplied charge and supplies it to the A / D converter 234. The A / D converter 234 converts the supplied analog signal into a digital signal (corresponding to the above-mentioned radiographic image data) and supplies it to the correction processing unit 400.

Subsequently, a configuration example of the photographing control unit 300 will be described with reference to FIG. The shooting control unit 300 includes a drive control unit 301, a CPU 302, a CPU memory 303, a command receiving unit 304, and a correction data memory control unit 305. The drive control unit 301 controls the radiation detection unit 200 based on a command from the first control device 101. The CPU 302 controls the entire radiation imaging apparatus 100 by using a program and various data stored in the CPU memory 303. The CPU memory 303 stores, for example, a program and various data used when the CPU 302 executes a process. The command receiving unit 304 receives a command from the first control device 101 via the communication unit 500. The command receiving unit 304 outputs command information to the correction data memory control unit 305 based on the received command. The correction data memory control unit 305 reads the correction data memory of the correction processing unit 400 based on the command information from the command reception unit 304, and transmits the correction data to the first control device 101 via the communication unit 500. , The corrected radiation image data (corrected image data) is transmitted to the second control device 111.

Subsequently, a configuration example of the correction processing unit 400 will be described with reference to FIG. The correction processing unit 400 includes an offset correction unit 401, a gain correction unit 402, a defect correction unit 403, a noise reduction unit 404, and a correction data memory 405. The correction data memory 405 functions as a storage unit for the correction processing unit 400 to store correction data used at each stage of the plurality of correction processing.

The offset correction unit 401 corrects the acquired radiographic image data by using the dark current data (hereinafter referred to as offset correction data) stored in the correction data memory 405 acquired in advance. As the offset correction data, as an example, image data (offset image data) in which dark current data is stored as an image format is used. The offset correction unit 401 performs offset correction by subtracting the offset correction data from the acquired radiation image data. The offset correction data is data acquired by the radiation detection unit 200 without irradiating the radiation. Offset correction data is collected for each shooting mode. Since the characteristics of the offset correction data are likely to change depending on the environment such as temperature, the offset correction data is updated regularly. As the offset correction data, the data collected in the same imaging mode as the acquired radiographic image data is used. Further, the offset correction unit 401 outputs the radiation image data of the offset correction processing to the gain correction unit 402 and saves the radiation image data in the correction data memory 405.

The gain correction unit 402 corrects the radiation image data that has been offset-corrected by using the gain correction data stored in the correction data memory 405. The gain correction unit 402 corrects the radiation image data that has been offset-corrected by dividing it by the gain correction data. The gain correction data is an image acquired by irradiating radiation without going through the subject, and is collected for each shooting mode. The gain correction data used for the gain correction is collected in the same imaging mode as the acquired radiographic image data. Further, the gain correction unit 402 outputs the gain-corrected radiation image data to the defect correction unit 403 and saves it in the correction data memory 405.

The defect correction unit 403 corrects defects in the radiation image data that has undergone gain correction processing based on the defect correction data stored in the correction data memory 405.

The defect correction unit 403 identifies defective pixels in the radiographic image data based on the defect correction data, and performs defect correction using information on normal pixels around the specified defective pixels. The defect correction unit 403 complements and corrects the pixel values of the defective pixels by using the pixel values of the peripheral normal pixels. The defect correction data is, for example, the coordinate information of the defective pixel of the sensor unit 210, and has the coordinate information corresponding to each shooting mode. As the defect correction data used for the defect correction, the defect correction data of the same imaging mode as the acquired radiographic image data is used. Further, the defect correction unit 403 outputs the corrected radiation image data to the noise reduction unit 404 and saves the correction data memory 405.

The noise reduction unit 404 reduces noise in the radiation image data based on the noise reduction parameters stored in the correction data memory 405. The noise reduction parameter is, for example, a numerical value indicating the strength of noise suppression, and has a set value for each shooting mode. For the noise reduction parameter used for noise reduction, the same imaging mode setting value as the acquired radiation image data is used.

Here, the noise reduction unit 404 makes corrections to reduce noise components randomly generated in the entire acquired radiation image data, line-shaped noise components generated in each row of the sensor unit 210, and the like.

Further, the noise reduction unit 404 outputs the radiation image data that has undergone noise reduction processing to the communication unit 500, and stores the radiation image data in the correction data memory 405.

The correction data memory 405 stores correction data used for offset correction, gain correction, defect correction, and noise reduction, and also stores corrected radiographic image data after each correction. In the present embodiment, the correction data memory 405 stores the radiation image data after offset correction, the radiation image data after gain correction, the radiation image data after defect correction, and the radiation image data after noise reduction.

Next, the image data correction processing operation performed by the radiation imaging apparatus 100 will be described with reference to the flowchart of FIG.

In S610, the radiation imaging apparatus 100 collects correction data such as offset correction data and gain correction data.

In S620, when the radiation imaging device 100 receives a command to start radiation irradiation from the first control device 101, it controls the drive circuit 220 and the readout circuit 230 to acquire and acquire radiation image data from the radiation detection unit 200. The resulting radiation image data is output to the offset correction unit 401.

In S630, the offset correction unit 401 reads the offset correction data stored in the correction data memory 405 and subtracts the offset correction data from the input radiographic image data. The offset correction unit 401 outputs the corrected radiation image data (that is, the radiation image data that has been offset-corrected) to the gain correction unit 402 and saves the corrected radiation image data in the correction data memory 405.

In S640, the gain correction unit 402 reads the gain correction data stored in the correction data memory 405 and divides the radiographic image data input from the offset correction unit 401 by the gain correction data. The gain correction unit 402 outputs the corrected radiation image data (that is, the gain-corrected radiation image data) to the defect correction unit 403 and saves the corrected radiation image data in the correction data memory 405.

In S650, the defect correction unit 403 reads the defect correction data stored in the correction data memory 405 and corrects the defect pixels of the radiation image data input from the gain correction unit 402. The defect correction unit 403 outputs the corrected radiation image data (that is, the defect-corrected radiation image data) to the noise reduction unit 404, and stores the corrected radiation image data in the correction data memory 405.

In S660, the noise reduction unit 404 reads out the noise reduction parameters stored in the correction data memory 405 and reduces the noise of the radiation image data input from the defect correction unit 403. The noise reduction unit 404 outputs the corrected radiation image data (that is, the noise-reduced radiation image data) to the communication unit 500 and stores the corrected radiation image data in the correction data memory 405.

In S670, the communication unit 500 transmits the noise-reduced radiation image data (corrected image data) input from the noise reduction unit 404 to the second control device 111.

The above is the correction processing operation of the image data of the radiation imaging apparatus 100. At this time, the correction data memory 405 stores the correction data used in each stage of offset correction, gain correction, defect correction, and noise reduction, and the image data after correction in each stage of correction processing.

Next, the correction data of the radiation imaging system and the transmission operation of the correction processing data will be described with reference to FIG. 7.

In S710, the operator selects the shooting mode via the first input device 103 of the first control device 101. Then, the irradiation start timing is input.

In S720, the first control device 101 transmits a shooting start command of the shooting mode selected by the operator to the radiation imaging device 100.

In S730, the radiation imaging apparatus 100 receives a shooting start command and performs a shooting operation (S620 to S670 in FIG. 6) in a designated shooting mode.

In S740, the radiation imaging device 100 transmits the radiation image data (corrected image data) that has undergone a plurality of correction processes (offset correction, gain correction, defect correction, noise reduction) to the second control device 111.

In S750, the second control device 111 performs image processing of the received radiographic image data.

In S760, the second control device 111 controls the second display device 112 so that the image-processed radiation image data is displayed on the second display device 112.

In S770, the radiation imaging device 100 transmits the correction data at each stage of the correction process to the first control device 101. At this time, the radiation imaging apparatus 100 may also send the processed radiation image data after being corrected at each stage of the offset correction, gain correction, defect correction, and noise reduction processing of the selected imaging mode. ..

Here, the radiation imaging apparatus 100 transmits one radiation image when the still image photographing mode is selected in S720. Further, when the moving image shooting mode is selected in S720, the radiation imaging apparatus 100 transmits images of all frames in moving image shooting or images of only predetermined frames. Here, the radiation imaging device 100 may save and transmit only the image of the final frame of the moving image shooting in the moving image shooting mode. For example, the moving image shooting mode may be used to define a shooting area for still image shooting performed following the moving image shooting, and in this case, it is sufficient to confirm the presence or absence of a defect by the image quality of the final frame. In addition, the operator may immediately stop the shooting when an abnormality in the image quality occurs while determining the necessity of re-shooting while watching the moving image of the moving image shooting. Therefore, the radiation imaging system 10 can make a quick and appropriate judgment by acquiring only the image of the final frame in the moving image shooting.

In S780, the first control device 101 stores the received correction data and the processed radiographic image data after correction at each stage.

The cause of the malfunction is a failure of equipment such as a radiation generator, a radiation detection unit, and a communication unit, or noise generated mechanically or electromagnetically in the radiation imaging device when acquiring a radiation image or a plurality of corrected image data. An abnormality may occur in the image quality of the radiation image. For example, if the user determines that some problem has occurred by looking at the radiographic image, and if it can be determined that one correction data (for example, offset data) is not appropriate, the user quickly selects to perform reimaging. It becomes possible.
As described above, the radiation imaging system according to the first embodiment can store each correction data used in the plurality of correction processes in the first control device 101. For this reason, it is easy for the user to identify the cause of the defect by using the radiation image and the correction data when it is determined that a defect in the device or an abnormality in the image quality has occurred by looking at the radiation image during shooting. Become.

(Second embodiment)
Next, the second embodiment will be described. In the first embodiment, an example in which the radiation imaging system stores the correction data and the like used in each stage in the first control device 101 has been described. However, if all the image data after the correction processing of each stage and the correction data used in each stage are saved for one shooting, the amount of data becomes large. Since the memory of the control device and the radiation imaging device for collecting the defect analysis data is limited, it is preferable to collect the data efficiently. In the second embodiment, a case where the first control device 101 has a data selection means for selecting data to be transmitted for defect analysis, and only the selected data is collected and stored will be described. In the following description, only the difference from the first embodiment will be described.

FIG. 8 is a sequence diagram showing a transmission operation of the correction data according to the second embodiment and the image data after the correction processing of each stage.

In S800, the first input device 103 receives data to be transmitted for defect analysis from the operator. Specifically, the correction data that needs to be transmitted is selected from the correction data used in each stage. For example, when a defect due to offset fluctuation is expected due to temperature fluctuation or the like, image data or offset correction data after offset correction is selected. The first input device 103 also specifies the transmission order when a plurality of data are selected.

In S820, the first control device 101 sends information for designating the correction data selected in S800 and transmission order information to the radiation imaging device 100 in addition to the shooting start command of the shooting mode selected by the operator. Send.

In S870, the radiation imaging device 100 transmits the designated correction data to the first control device 101 in the designated transmission order.

According to the second embodiment described above, by selecting the data to be saved for the defect analysis, it is possible to efficiently collect and save the data necessary for the analysis.

(Third embodiment)
Next, the third embodiment will be described. In the first and second embodiments, correction data for defect analysis is stored for each shooting. In the third embodiment, in order to efficiently collect the correction data, the radiation imaging apparatus transmits the correction data for defect analysis at a designated timing. In the following description, only the differences from the first and second embodiments will be described.

FIG. 9 is a diagram showing a configuration example of the photographing control unit according to the third embodiment. The transmission timing control unit 306 controls to transmit the correction data specified in the transmission image information to the first control device 101 at the timing when the occurrence of a preset event is detected. The preset event is specified by a signal (for example, transmitted image information) including any of, for example, the end of shooting at the time of moving image shooting, the switching of the shooting mode, the occurrence of an error of the radiation imaging device 100, and a predetermined request. It is the reception of a command) that instructs the output of data. Here, the error is information indicating that the radiation imaging apparatus 100 has transitioned to a state in which imaging cannot be performed, and includes a state power supply state, a temperature state, a communication state, and the like.

As described above, according to the third embodiment, the radiation imaging system can more efficiently collect and save the correction data used for the analysis by transmitting the data to be saved for the defect analysis at the specified timing. It will be possible.

(Fourth Embodiment)
Next, a fourth embodiment will be described. In the third embodiment, an example in which the radiation imaging system collects correction data for defect analysis at a specified timing has been described. In the fourth embodiment, the radiation imaging system adds a time stamp to the correction data collected for defect analysis. In the following description, only the differences from the first to third embodiments will be described.

FIG. 10 is a sequence diagram showing a correction data transmission operation according to the fourth embodiment.

In S970, as in the other embodiments, the radiation imaging device 100 transmits the designated correction data to the first control device 101 in the designated transmission order. The radiation imaging apparatus 100 sends the correction data together with the time (time information) for correction using the correction data.

In S1000, the first control device 101 stores the received correction data and the corrected time in association with each other. Further, the first control device 101 can manage (save) the time when the shooting mode is selected, the time when the radiographic imaging device 100 is instructed to shoot, and the like in association with each other. Therefore, the operator can use the managed log information to perform analysis retroactively in the radiation imaging apparatus 100 when a problem occurs.

The first control device 101 may not acquire the correction time using the correction data from the radiation imaging device 100, and may perform the above-mentioned association based on the time when the correction data is received.

As described above, according to the fourth embodiment, the radiation imaging system can manage the correction data by associating the correction data with the corrected time. Therefore, the user can efficiently perform defect analysis.

(Fifth Embodiment)
Next, the fifth embodiment will be described. The radiation imaging system of the fifth embodiment describes a case where the corrected data and the image-processed data are displayed on the same display device at the same time in order to efficiently perform the defect analysis. In the following description, only the differences from the first to fourth embodiments will be described.

FIG. 11 is a sequence diagram showing a transmission operation of the correction data and the correction processing data according to the fifth embodiment. In S1100, the second control device 111 transmits the image-processed radiographic image data to the first control device 101. In S1110, the first control device 101 displays the correction data and the received radiographic image data after image processing on the first display device 102. The first control device 102 can display the image data on which the image processing has been performed, the correction processing data, and the image processed image data on the same display device. The operator can compare these information displayed side by side, and can easily analyze the defect.

As described above, according to the fifth embodiment, by transmitting the image processed image data to the control device that has transmitted the data for defect analysis, it is possible to display on the same display device, and the defect analysis can be performed. Can be done efficiently.

Each embodiment can also be realized by executing a program (computer program) by a computer or a control computer. Further, a means for supplying the program to the computer, for example, a computer-readable recording medium such as a CD-ROM recording the program or a transmission medium such as the Internet for transmitting the program can also be applied as an embodiment. .. The above program can also be applied as an embodiment. The above programs, recording media, transmission media and program products are included in the scope of the present invention.

Although the details have been described above based on the embodiments, the present invention is not limited to these specific embodiments, and various embodiments within the scope of the gist of the invention are also included in the scope of the present invention. Furthermore, the above-described embodiment is merely an embodiment, and inventions that can be easily imagined from the above-mentioned embodiments are also included in the scope of the present invention.

100 Radiation imaging device 101 First control device 111 Second control device 200 Radiation detection unit 300 Imaging control unit 400 Correction processing unit

Claims (6)

It is a radiation imaging system having a radiation imaging device that detects radiation emitted from a radiation source, a first control device that controls imaging operations, and a second control device that performs image processing on captured images. hand,
The radiation imaging device is
A correction processing unit for performing a plurality of correction processing different radiation image data based on the detected radiation,
It has a storage unit for storing correction data used in each correction process of the plurality of correction processes.
The corrected image data subjected to the plurality of correction processes is transmitted to the second control device , and the corrected image data is transmitted.
After transmitting the corrected image data to the second controller, the first controller, as data for failure analysis of the radiation imaging system, at least one of the correction data used by the respective correction process 1 A radiation imaging system characterized by transmitting two correction data. The radiation imaging device has a communication unit capable of communicating with each of the first control device and the second control device.
The communication unit, the first control device and said second control device, Ri by the different communication paths, respectively, each using a different communication scheme, characterized in that it is capable of transmitting the correction data The radiation imaging system according to claim 1. Said first controller, a radiation imaging system according to claim 1 or 2, characterized in that stored in association with the received compensation data and the correction data in the time correction is performed information. The second controller, the first controller, the prior SL radiation imaging system according to any one of claims 1-3, characterized in that to transmit the corrected image data. Further comprising a table radical 113,
The display unit, the correction data and the radiation imaging system according to any one of claims 1-4, characterized in that to display the corrected image data at the same time. A radiation imaging device that has a radiation detection unit that detects the radiation emitted from the radiation source and can communicate with a first control device that controls the imaging operation and a second control device that performs image processing on the captured image. There,
A correction processing unit that performs a plurality of correction processing different radiation image data based on the radiation the radiation detection unit has detected,
It has a storage unit for storing correction data used in each correction process of the plurality of correction processes.
Send the corrected image data before Symbol plurality of correction process is performed in the second control unit,
After transmitting the corrected image data to the second controller, the first controller, as data for failure analysis of the radiographic system, wherein at least one of the correction data to be used in each correction process A radiation imaging device characterized by transmitting correction data.

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