JP2018171235A - Radiation imaging apparatus, radiation imaging system, control method, and program - Google Patents

Abstract

An object of the present invention is to provide a mechanism that can quickly display an image output from a radiation imaging device when communication between the radiation imaging device and a control device is established. [Solution] In a radiographic apparatus that captures a radiographic image based on radiation, if communication between the radiographic apparatus and an external device is not established at the time of capturing the radiographic image, correction processing is performed on the radiographic image. a correction means; a storage means for storing the radiation image after the correction processing; and a storage means for storing the radiation image after the correction processing, the radiation image after the correction processing being stored in the storage means after communication between the radiation imaging apparatus and the external device is established. and transmitting means for transmitting. [Selection diagram] Figure 4

Description

  The present invention relates to a radiation imaging apparatus, a radiation imaging system, a control method, and a program.

  In recent years, in the medical field, a radiography system using a radiography apparatus using a flat panel detector (hereinafter referred to as FPD) formed of a semiconductor material has remarkably spread. In FPD, radiation image data obtained by digitizing the intensity distribution of radiation transmitted through a subject is transmitted to a control device such as a PC or a display device such as a display. Thereby, the user can perform imaging while confirming the radiation image immediately after imaging.

  As a control device of the radiation imaging system, a plurality of control devices having different image processing functions may be used. Patent Document 1 discloses a radiation imaging system that selects a radiation image capturing mode in accordance with the image processing capability of an FPD connection destination. Patent Document 2 discloses a radiation imaging system in which image processing is performed in an FPD during still image shooting, and image processing is performed in a connected external device during moving image shooting.

Japanese Patent Laying-Open No. 2006-147044 Japanese Patent No. 5500933

  In the prior art, when imaging is performed in a state in which the radiation imaging apparatus is not in communication with the control device, the image obtained by the imaging is stored, and the image is transmitted to the control device after communication with the control device is established. To do. Then, image processing is performed on the control device side. For this reason, there is a problem that it takes time until the control device receives the image and displays it.

  The present invention has been made in view of such problems, and provides a mechanism capable of promptly displaying an image output from the radiation imaging apparatus when communication between the radiation imaging apparatus and the control apparatus is established. Objective.

  Therefore, the present invention is a radiographic apparatus that captures a radiographic image based on radiation, and correction processing is performed on the radiographic image when communication between the radiographic apparatus and an external device is not established at the time of radiographic image capturing. Correction means for performing the correction processing, storage means for storing the radiographic image after the correction processing, and the post-correction processing stored in the storage means after communication between the radiation imaging apparatus and the external device is established Transmission means for transmitting a radiation image.

  According to the present invention, it is possible to provide a mechanism capable of promptly displaying an image output from a radiation imaging apparatus when communication between the radiation imaging apparatus and the control apparatus is established.

1 is an overall view of a photographing system according to a first embodiment. It is a figure which shows an imaging device. It is a figure which shows a control apparatus. It is a flowchart which shows an imaging | photography process. It is a flowchart which shows a display process. It is a general view of the imaging system which concerns on 2nd Embodiment. It is a figure which shows the imaging device which concerns on 2nd Embodiment. It is a flowchart which shows the imaging | photography process which concerns on 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is an overall view of an imaging system according to the first embodiment. The imaging system includes an imaging device 110, a control device 120, a relay device 130, a radiation generation device 140, a tube 150, and a switch 160. The imaging apparatus 110 and the radiation generation apparatus 140 are connected to the control apparatus 120 via the relay apparatus 130. The relay device 130 controls data transfer between the imaging device 110 and the control device 120 and data transfer between the radiation generation device 140 and the control device 120. In addition, the relay device 130 supplies power to the imaging device 110.

  When the switch 160 is pressed by the operator, the radiation generator 140 emits radiation from the tube 150. The imaging device 110 detects radiation that has passed through the subject A and converts the detected radiation into an image to obtain a radiation image. Note that the radiation irradiation by the radiation generator 140 and the radiation detection by the imaging apparatus 110 are performed in synchronization. The process for this synchronization is not particularly limited. For example, the radiation generation apparatus 140 may transmit a synchronization signal to the imaging apparatus 110 at the start of irradiation, and the imaging apparatus 110 may start detecting radiation when receiving the synchronization signal. As another example, the imaging apparatus 110 controls the start of imaging, transmits a synchronization signal to the radiation generation apparatus 140, and the radiation generation apparatus 140 starts irradiation when receiving the synchronization signal. It is good. As described above, the control device 120 controls each device and receives a radiographic image from the imaging device 110. Here, the imaging system is an example of a radiation imaging system. The imaging apparatus 110 is an example of a radiation imaging apparatus that receives radiation and forms an image.

  FIG. 2 is a diagram illustrating the imaging device 110. The imaging apparatus 110 includes a control unit 201, a nonvolatile storage unit 202, a volatile storage unit 203, a communication unit 204, an operation display unit 205, a detector 206, and a first image correction unit 207. Have. The control unit 201 has a CPU and controls the entire photographing apparatus 110. The nonvolatile storage unit 202 stores programs and data. The volatile storage unit 203 is used as a temporary storage area such as a work area of the control unit 201. The communication unit 204 communicates with an external device. The operation display unit 205 is a user interface including a detection unit that detects an operation by an operator and a display unit that displays various types of information.

  The detector 206 detects the radiation transmitted through the subject A, and obtains a radiation image by imaging the detected radiation. The first image correction unit 207 performs image correction processing on the radiation image obtained by the detector 206. Specifically, the first image correction unit 207 performs dark current correction (offset correction), gain correction, defective pixel correction, line noise correction, and the like. As described above, the image correction process performed by the imaging apparatus 110 includes a plurality of processes. The imaging system according to the present embodiment finally performs dark current correction, gain correction, missing pixel correction, and line noise correction on a radiographic image. In this embodiment, the control device 120 displays the radiation image on which dark current correction, gain correction, missing pixel correction, and line noise correction have been completed on a display unit described later.

  In addition, although the number and kind of correction processes performed with respect to a radiographic image shall be predetermined, the number and kind are not limited to embodiment. In the present embodiment, it is assumed that dark current correction is a process that can be executed by the image capturing apparatus 110 but cannot be executed by the control apparatus 120. Further, it is assumed that the gain correction, the defective pixel correction, and the line noise correction are processes that can be executed by both the photographing apparatus 110 and the control apparatus 120. Hereinafter, the correction that can be performed by the imaging apparatus 110 and that cannot be performed by the control apparatus 120 is referred to as a first correction process, and the correction that can be performed by either the imaging apparatus 110 or the control apparatus 120 is referred to as a second correction process. I will call it. That is, dark current correction is a first correction process, and gain correction, missing pixel correction, and line noise correction are second correction processes. Which of the imaging device 110 and the control device 120 performs the second correction process will be described in detail later.

  FIG. 3 is a diagram illustrating the control device 120. The control device 120 includes a control unit 301, a nonvolatile storage unit 302, a volatile storage unit 303, a communication unit 304, a display unit 305, an input unit 306, and a second image correction unit 307. doing. The control unit 301, the non-volatile storage unit 302, the volatile storage unit 303, and the communication unit 304 are the same as the control unit 201, the non-volatile storage unit 202, the volatile storage unit 203, and the communication unit 204 described with reference to FIG. It is the same. The display unit 305 displays various information. The input unit 306 receives a user operation. The second image correction unit 307 performs gain correction, missing pixel correction, and line noise correction, which are the second correction processes. However, as described above, the second image correction unit 307 does not perform the dark current correction that is the first correction process. Note that the correction process performed by the first image correction unit 207 of the imaging apparatus 110 may be performed by the control unit 201. Similarly, the correction process performed by the second image correction unit 307 of the control device 120 may be performed by the control unit 301.

  FIG. 4 is a flowchart showing a photographing process performed by the photographing apparatus 110. This process is realized by the control unit 201 reading a program stored in the nonvolatile storage unit 202 and executing this program. In step S401, the control unit 201 of the photographing apparatus 110 confirms whether or not a photographing start instruction has been accepted. The control unit 201 receives an imaging start instruction via the relay device 130 when the operator presses the switch 160. When the control unit 201 receives an instruction to start shooting (Yes in S401), the control unit 201 advances the process to S402.

  Next, in step S402, the control unit 201 confirms a shooting mode at the time of shooting. The photographing modes of the photographing apparatus 110 of this embodiment include a synchronous mode and an asynchronous mode. The synchronous mode is an operation mode in which radiation imaging is performed in a state where communication with the control device 120 as an external device is established. The asynchronous mode is an operation mode in which radiation imaging is performed in a state where communication with the control device 120 is not established. The image capturing apparatus 110 confirms the communication state between the image capturing apparatus 110 and the control apparatus 120. If communication between both apparatuses is established, the apparatus is set to the synchronous mode, and communication between both apparatuses is not established. Set to asynchronous mode. When the shooting mode is the synchronous mode (synchronous mode in S402), the control unit 201 advances the process to S403. When the shooting mode is the asynchronous mode (asynchronous mode in S402), the control unit 201 advances the process to S406. Here, the shooting mode is a mode that switches in conjunction with whether or not communication has been established, and the process of S402 is a process of confirming whether or not communication between the shooting apparatus 110 and the control apparatus 120 has been established. It is an example.

  In step S403, the control unit 201 performs shooting preparation processing in the synchronous mode. At this time, the operator operates the control device 120 to set shooting conditions for the shooting device 110, and shifts the shooting device 110 to a shooting waiting state. Further, the operator operates the control device 120 to set imaging conditions for the radiation generation apparatus 140 and shift the radiation generation apparatus 140 to the exposure preparation state. In accordance with the setting from the control device 120, the imaging device 110 performs drive settings for the detector 206 and settings for the first image correction unit 207 to prepare for imaging. Next, in step S404, the control unit 201 controls to perform radiation imaging. Specifically, the radiation generator 140 emits radiation from the tube 150 in response to pressing of the switch 160. In response to this, the control unit 201 controls to start processing by the detector 206. When the radiation irradiation is completed under the control of the control unit 201, the detector 206 detects the radiation transmitted through the subject A and obtains a radiation image.

  Next, in step S405, the control unit 201 performs control so as to perform a first correction process that is dark current correction. The first image correction unit 207 performs a first correction process, which is dark current correction, on the radiation image obtained by the detector 206 under the control of the control unit 201. At this time, the control unit 201 does not perform the second correction process including the gain correction, the defective pixel correction, and the line noise correction. That is, the radiation image after the process in S405 is an image for which the correction process has not been completed. In step S <b> 406, the control unit 201 performs control so that a radiographic image for which correction processing has not been completed is transmitted to the control device 120 via the first image correction unit 207. Thus, the shooting process ends. Here, in the processes of S403 to S406, when communication is established, the second correction process is not performed, and dark current correction, which is a first correction process different from the second correction process, is performed. It is an example of the transmission process which transmits the radiographic image after correction | amendment.

  On the other hand, in S407, the control unit 201 performs shooting preparation processing in the asynchronous mode. In the asynchronous mode, since communication between the control device 120 and the photographing device 110 has not been established, the operator operates the photographing device 110 to shift to a photographing standby state. Further, the operator operates the radiation generator 140 to shift to the exposure preparation state. The photographing apparatus 110 detects a photographing mode selection or a transition operation to a photographing standby state. Then, the control unit 201 performs drive settings for the detector 206 and settings for the first image correction unit 207 to prepare for photographing. Next, in step S <b> 408, the control unit 201 controls to perform radiation imaging. This process is the same as the process in S404.

  Next, in step S409, the control unit 201 performs control to perform dark current correction and gain correction. The first image correction unit 207 performs a first correction process and a second correction process on the radiographic image obtained by the detector 206 under the control of the control unit 201, that is, dark current correction, gain correction, and loss. Perform pixel correction and line noise correction. Thereby, all the correction processes for the radiographic image are completed. Here, the process of S409 is an example of a correction process for performing image correction when communication is not established. Next, in step S <b> 410, the control unit 201 stores the radiation image for which all correction processes have been completed in the volatile storage unit 203. This process is an example of a saving process for saving the radiographic image after the correction process in the storage unit. Note that the storage destination may be the nonvolatile storage unit 202.

  Next, in S411, the control unit 201 confirms whether or not the shooting mode has been changed from the asynchronous mode to the synchronous mode. When the shooting mode is changed (Yes in S411), the control unit 201 advances the process to S412. In the synchronous mode, communication between the imaging device 110 and the control device 120 is established. Therefore, in step S <b> 412, the control unit 201 reads out a radiographic image that has been stored in the volatile storage unit 203 and has been subjected to correction processing, and transmits this to the control device 120 via the communication unit 204. The process of S412 is an example of a transmission process in which the radiographic image for which the correction process is completed is transmitted to the control apparatus 120 as an external apparatus after the communication between the imaging apparatus 110 and the control apparatus 120 is established.

  Note that the timing at which the radiographic image stored in the volatile storage unit 203 and having undergone the correction process is transmitted to the external apparatus may be after communication between the imaging apparatus 110 and the control apparatus 120 is established, and is limited to the embodiment. Is not to be done. As another example, the control unit 201 transmits a radiographic image after communication is established and on the condition that a transmission instruction is accepted according to a user operation in the control device 120 or the imaging device 110. It is good as well.

  In addition, after starting the transmission of the radiation image in S406, before the transmission is completed, the communication may be disconnected and the imaging mode may be switched to the asynchronous mode. In such a case, the imaging apparatus 110 stops transmitting the radiation image when the imaging apparatus 110 is switched to the asynchronous mode. Then, the imaging apparatus 110 performs second correction processing including gain correction, missing pixel correction, and line noise correction on the radiation image for which transmission has been interrupted, and stores the corrected radiation image in the volatile storage unit 203. Thereby, the imaging apparatus 110 can transmit the radiographic image for which the correction process has been completed to the control apparatus 120 after the communication is resumed.

  FIG. 5 is a flowchart showing the radiation image display processing by the control device 120. This process is realized by the control unit 301 reading a program stored in the nonvolatile storage unit 302 and executing the program. In S501, the control unit 301 of the control device 120 stands by until a radiographic image is received. When the radiographic image is received (Yes in S501), the process proceeds to S502. In step S <b> 502, the control unit 301 confirms whether the correction process for the radiation image is completed. If the correction process has not been completed (No in S502), the control unit 301 advances the process to S503. If the correction process has been completed (Yes in S502), the control unit 301 advances the process to S504.

  In step S <b> 503, the control unit 301 performs control to perform a second correction process including gain correction, missing pixel correction, and line noise correction. The second image correction unit 307 performs a second correction process on the received radiation image under the control of the control unit 301. Thereby, all the correction processes to be performed on the radiation image are completed. In step S <b> 504, the control unit 301 controls the display unit 305 to display a radiographic image for which correction processing has been completed. This process is an example of a display control process for controlling to display a radiation image. This is the end of the display process.

  As described with reference to FIG. 4, when communication between the imaging device 110 and the control device 120 is established at the time of radiation imaging by the imaging device 110, the control device 120 does not complete the correction process. Will be received. In this case, the control unit 301 performs the second correction process in S503, and then controls to display the radiation image for which the correction process has been completed in S504. On the other hand, if communication between the imaging device 110 and the control device 120 has not been established at the time of radiation imaging by the imaging device 110, the imaging device 110 stores a radiographic image for which correction processing has been completed. Therefore, the control device 120 can receive a radiographic image for which correction processing has been completed after establishing communication with the imaging device 110. Therefore, in this case, the control unit 301 can perform control so as to promptly display the radiation image for which the correction process has been completed without performing the second correction process.

  As described above, in the imaging system according to the present embodiment, an apparatus that has received an image from a radiation imaging apparatus can display an image immediately after receiving the image.

  A first modification of the first embodiment will be described. In the imaging system of the present embodiment, when communication between the imaging device 110 and the control device 120 is established at the time of radiation imaging, the second correction process including gain correction, missing pixel correction, and line noise correction is performed by the imaging device. The control device 120 does not perform 110. This is suitable, for example, when the calculation capability of the control device 120 is higher than that of the imaging device 110. However, the apparatus that performs the second correction process when communication is established at the time of radiation imaging is not limited to the embodiment. As another example, even when communication is established at the time of radiography, the imaging apparatus 110 may perform part of the second correction processing including gain correction, missing pixel correction, and line noise correction. This is suitable, for example, when the computing capability of the imaging device 110 is higher than that of the control device 120. In addition, since the radiographic image for which the correction processing has been completed can always be transmitted by the imaging apparatus 110, the radiographic image can be displayed even for an apparatus that does not have a correction function.

  As a second modification, the type and number of correction processes to be performed on the radiographic image are arbitrary, and are not limited to the embodiment.

  As a third modified example, in the present embodiment, the imaging apparatus 110 always performs the first correction process, which is dark current processing, regardless of the imaging mode. The power correction process is not essential. For example, when the control device 120 can execute all the correction processes, in the synchronous mode, the imaging apparatus 110 may transmit a radiographic image that has not been subjected to the correction process to the control apparatus 120. In this case, the control device 120 may perform all correction processes that the radiation should perform on the image.

  As a fourth modification, the imaging apparatus 110 may control correction processing and transmission processing for a radiographic image according to an operation mode in the imaging apparatus 110 that does not depend on a communication state with the control apparatus 120. For example, it is assumed that the photographing apparatus 110 can set the transfer mode and the save mode as the operation mode. For example, when the operation mode is the transfer mode, the imaging apparatus 110 performs only the first correction process that is dark current correction on the radiographic image, and transfers the radiographic image that has not been corrected. In other words, when the operation mode is the transfer mode, the imaging apparatus 110 may perform the processes of S403 to S406 illustrated in FIG. On the other hand, when the operation mode is the storage mode, the imaging apparatus 110 performs the first correction process and the second correction process on the radiographic image, and stores the radiographic image that has been subjected to the correction process. In other words, when the operation mode is the storage mode, the photographing apparatus 110 may perform the processes of S407 to S410 illustrated in FIG.

  Here, the transfer mode is an operation mode that can be set only when communication between the imaging device 110 and the control device 120 is established. In addition, the storage mode is an operation mode that can be set regardless of the communication state between the imaging device 110 and the control device 120. Furthermore, the storage mode may be set according to a user operation. Thus, in the storage mode, even when communication between the imaging device 110 and the control device 120 is established, the imaging device 110 completes the correction process, and the radiation image that has been subjected to the correction process is stored in the nonvolatile storage unit. 202 can be stored. Therefore, even when the user wants to transfer the radiation images to the external device at a later time, the radiation image for which the correction processing has been completed can be the transfer target.

  As a fifth modification, the control unit 201 may store the radiation image after the first correction processing in the volatile storage unit 203 in the synchronous mode. Further, the control unit 201 may store the radiation image that has been executed only in the first correction process in the volatile storage unit 203 before performing the second correction process even in the asynchronous mode. In these cases, the storage destination may be the nonvolatile storage unit 202 instead of the volatile storage unit 203.

  Further, as a sixth modification, communication between the imaging device 110 and the control device 120 is not limited to wired communication, and may be wireless communication. For example, as described in a second embodiment described later, the relay device 130 is connected to a wireless access point (AP), and the photographing device 110 communicates with the control device 120 via wireless communication with the AP. Also good. Further, in this case, the imaging device 110 may be equipped with a battery instead of receiving power supply from the relay device 130. In this case, it is preferable that the storage destination of the image is the non-volatile storage unit 202 instead of the volatile storage unit 203 in consideration of the possibility of the remaining battery level being exhausted. As another example, two systems, wired and wireless, may be provided as communication means between the imaging device 110 and the control device 120.

  Further, as a seventh modification, in the present embodiment, the photographing process described with reference to FIG. 4 is executed by one control unit 201, but instead, a plurality of pieces of hardware are executed. It is good as well. Similarly, the display processing described with reference to FIG. 5 may be executed by a plurality of hardware instead of being executed by one control unit 301.

(Second Embodiment)
Next, a difference between the imaging system according to the second embodiment and the imaging system according to the first embodiment will be described. FIG. 6 is an overall view of an imaging system according to the second embodiment. In the present embodiment, the imaging device 110 has a wireless communication function, and communicates with the control device 120 via the relay device 130 to which the wireless access point (AP) 600 is connected. In addition, the photographing apparatus 110 includes a battery 610 instead of receiving power supply from the relay apparatus 130, and the photographing apparatus 110 performs various operations by supplying power from the battery 610. In the second embodiment, transmission of a radiographic image (a radiographic image for which correction processing has not been completed and a radiographic image for which correction processing has been completed) from the imaging device 110 to the control device 120 is performed via the AP 600. FIG. 7 is a diagram illustrating an imaging apparatus 110 according to the second embodiment. The imaging apparatus 110 includes a battery 610 and a remaining amount monitoring unit 701 in addition to the configuration of the imaging apparatus 110 according to the first embodiment. The remaining amount monitoring unit 701 detects the remaining amount of the battery 610.

  FIG. 8 is a flowchart illustrating a photographing process performed by the photographing apparatus 110 according to the second embodiment. Of the processes of the photographing process shown in FIG. 8, the same processes as those of the photographing process according to the first embodiment described with reference to FIG. After the process of S408, the control unit 201 advances the process to S801. In step S <b> 801, the control unit 201 acquires the remaining amount of the battery 610 from the remaining amount monitoring unit 701, and compares the remaining amount of the battery 610 with a preset threshold value. If the remaining amount is equal to or greater than the threshold (Yes in S801), the control unit 201 advances the process to S409. On the other hand, if the remaining amount is less than the threshold (No in S801), the control unit 201 advances the process to S802. In step S <b> 802, the control unit 201 stores the radiation image obtained by the detector 206 in the nonvolatile storage unit 202 without performing correction processing on the radiation image.

  In step S <b> 803, the control unit 201 performs control so that notification information is displayed on the operation display unit 205. Here, the notification information is information indicating that the battery 610 is low and needs to be replaced. The control unit 201 may further display information indicating that an untransferred radiation image is stored as notification information. Next, in step S804, the control unit 201 periodically checks the remaining amount of the battery 610. If the remaining amount of the battery 610 is equal to or greater than the threshold (Yes in step S804), the process proceeds to step S409. In this case, in S409, the radiation image stored in the nonvolatile storage unit 202 is read, and the first correction process and the second correction process are performed on the read radiation image. The other configuration and processing of the imaging system according to the second embodiment are the same as the configuration and processing of the imaging system according to the first embodiment.

  As described above, when the remaining amount of the battery 610 is less than the threshold, the imaging apparatus 110 according to the second embodiment stores the radiation image without performing the correction process. Thereby, it is possible to prevent a situation in which the remaining amount of the battery 610 is exhausted before the correction process is completed and the radiation image cannot be stored.

  As a first modification according to the second embodiment, the radiation image may be stored after performing only the first correction process that is dark current correction in S802.

  As a second modification, the photographing apparatus 110 may control the correction process to be executed step by step according to the remaining amount of the battery 610. For example, it is assumed that the first threshold value and the second threshold value are set in the photographing apparatus 110 as the remaining threshold value of the battery 610. Here, it is assumed that the first threshold value is larger than the second threshold value. The imaging device 110 performs a first correction process and a second correction process when the remaining amount of the battery 610 is greater than or equal to the first threshold value. Then, when the remaining amount of the battery 610 is less than the first threshold and greater than or equal to the second threshold, the photographing apparatus 110 performs only the first correction process. Then, when the remaining amount of the battery 610 is less than the second threshold, the photographing apparatus 110 does not perform both the first correction process and the second correction process. As described above, the imaging apparatus 110 may control the execution of the correction process according to the remaining amount of the battery 610.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible. In the second correction processing, correction processing other than gain correction, missing pixel correction, and line noise correction (for example, negative value correction) may be included.

(Other examples)
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

110 Imaging device 120 Control device 140 Radiation generator

Claims (19)

A radiographic apparatus that captures radiographic images based on radiation,
When communication between the radiation imaging apparatus and an external device is not established at the time of capturing a radiation image, a correction unit that performs correction processing on the radiation image;
Storage means for storing the radiographic image after the correction processing;
A radiographic apparatus, comprising: a transmission unit configured to transmit the radiographic image after the correction process stored in the storage unit after communication between the radiographic apparatus and the external apparatus is established.   2. The radiation according to claim 1, wherein the transmission unit transmits the radiation image after the correction processing when communication between the radiation imaging apparatus and the external apparatus is established and a transmission instruction is received. Shooting device. When communication between the radiation imaging apparatus and the external device is established at the time of capturing the radiation image,
The correction unit does not perform a part of the correction process on the radiation image,
The radiographic apparatus according to claim 1, wherein the transmission unit transmits the radiographic image on which a part of the correction processing is not performed. When communication between the radiation imaging apparatus and the external device is established at the time of capturing the radiation image,
The correction means performs a first correction process among the correction processes on the radiation image, and does not perform a second correction process different from the first correction process,
The radiographic apparatus according to claim 3, wherein the transmission unit transmits the radiographic image after the first correction processing. When the communication between the radiation imaging apparatus and the external apparatus is disconnected after the transmission means starts transmitting the radiation image,
The transmitting means stops transmitting the radiation image;
The correction means performs the second correction process on the radiographic image for which the transmission is stopped,
The radiographic apparatus according to claim 4, wherein the storage unit stores the radiographic image after the second correction process.   The correction means performs the correction process on the radiographic image when communication between the radiographic apparatus and the external apparatus has not been established and the remaining amount of a battery mounted on the radiographic apparatus is equal to or greater than a threshold value. The radiographic apparatus according to claim 1, wherein the radiographic apparatus is performed. When the communication between the radiation imaging apparatus and the external apparatus is not established and the remaining amount of the battery is less than a threshold value, the correction unit does not perform the correction process on the radiation image,
The radiographic apparatus according to claim 6, wherein the storage unit stores the radiographic image that has not been subjected to the correction process.   The radiographic apparatus according to claim 7, wherein the correction unit performs the correction process on the radiographic image stored in the storage unit after the remaining amount of the battery becomes a threshold value or more. .   The correction unit controls execution of the correction process according to a remaining amount of a battery mounted on the radiation imaging apparatus when communication between the radiation imaging apparatus and the external apparatus is not established. The radiation imaging apparatus according to claim 1.   The radiation imaging apparatus according to claim 6, wherein the storage unit is nonvolatile.   The radiographic apparatus according to claim 4, wherein the first correction process is dark current correction, and the second correction process is gain correction, missing pixel correction, and line noise correction. A radiographic apparatus that captures radiographic images based on radiation,
When communication between the radiation imaging apparatus and an external device is established at the time of capturing a radiation image, a correction unit that performs a first correction process on the radiation image;
Transmission means for transmitting the radiation image after the first correction processing,
When communication between the radiation imaging apparatus and the external device is not established at the time of radiographic image capture, the correction unit performs a first correction process and a second correction process on the radiographic image, and the transmission unit A radiographic apparatus that transmits the radiographic image after the first correction process and the second correction process after communication between the radiographic apparatus and an external apparatus is established. A radiographic apparatus that captures radiographic images based on radiation,
When the operation mode of the radiation imaging apparatus is the first mode, correction means for performing correction processing on the radiation image;
Storage means for storing the radiographic image after the correction processing;
When the operation mode is changed from the first mode to the second mode, which is an operation mode in which communication between the radiation imaging apparatus and an external apparatus is established, stored in the storage unit, after the correction processing A radiation imaging apparatus comprising: a transmission unit configured to transmit the radiation image. A radiation imaging system comprising: a radiation imaging apparatus that captures a radiation image based on radiation; and an external device that receives an image from the radiation imaging apparatus,
The radiation imaging apparatus includes:
When communication between the radiation imaging apparatus and the external device is not established at the time of capturing a radiation image, a correction unit that performs a correction process on the radiation image;
Storage means for storing the radiographic image after the correction processing;
Transmission means for transmitting the radiation image after the correction processing stored in the storage means after communication between the radiation imaging apparatus and the external device is established;
The external device is
A radiation imaging system comprising: display control means for controlling the received radiation image after the correction processing to be displayed on a display means. A radiation imaging system comprising a radiation imaging device and an external device for receiving an image from the radiation imaging device,
The radiation imaging apparatus includes:
Correction means for performing correction processing on a radiation image when the operation mode of the radiation imaging apparatus is the first mode;
Storage means for storing the radiation image after the correction processing;
The correction process stored in the storage unit when the operation mode is changed from the first mode to a second mode which is an operation mode in which communication between the radiation imaging apparatus and an external apparatus is established. Transmitting means for transmitting the later radiographic image;
The external device is
A radiation imaging system comprising: display control means for controlling the received radiation image after the correction processing to be displayed on a display means. The external device further includes correction means for performing the correction process on the received radiographic image when the radiographic image not subjected to the correction process is received;
The radiation imaging system according to claim 14 or 15, wherein the display control unit controls to display the radiographic image after the correction processing by the correction unit of the external device. A control method executed by a radiation imaging apparatus that receives and images radiation,
A correction step of performing a correction process on the radiographic image when communication between the radiographic apparatus and the external device is not established at the time of radiographic image capture;
A storage step of storing the radiation image after the correction processing in a storage unit;
And a transmitting step of transmitting the radiation image after the first correction processing stored in the storage means after communication between the radiation imaging apparatus and the external apparatus is established. A control method executed by a radiation imaging apparatus that receives and images radiation,
A correction step for performing correction processing on a radiographic image when the operation mode of the radiation imaging apparatus is the first mode;
A storage step of storing the radiation image after the correction processing in a storage unit;
The correction process stored in the storage unit when the operation mode is changed from the first mode to a second mode which is an operation mode in which communication between the radiation imaging apparatus and an external apparatus is established. And a transmitting step of transmitting the radiographic image later.   The program for functioning a computer as each means of the radiography apparatus of any one of Claims 1 thru | or 13.

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