WO2023277221A1 - 엑스레이 디텍터 및 그의 동작 방법 - Google Patents
엑스레이 디텍터 및 그의 동작 방법 Download PDFInfo
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- WO2023277221A1 WO2023277221A1 PCT/KR2021/008304 KR2021008304W WO2023277221A1 WO 2023277221 A1 WO2023277221 A1 WO 2023277221A1 KR 2021008304 W KR2021008304 W KR 2021008304W WO 2023277221 A1 WO2023277221 A1 WO 2023277221A1
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- 238000000034 method Methods 0.000 title claims description 15
- 230000001133 acceleration Effects 0.000 claims abstract description 96
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- 230000035945 sensitivity Effects 0.000 description 36
- 238000001514 detection method Methods 0.000 description 28
- 230000035939 shock Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 6
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- 238000011017 operating method Methods 0.000 description 3
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- 230000000694 effects Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/17—Circuit arrangements not adapted to a particular type of detector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/24—Measuring radiation intensity with semiconductor detectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/681—Motion detection
- H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/32—Transforming X-rays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/30—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from X-rays
Definitions
- the present disclosure relates to an X-ray detector and an operating method thereof.
- X-rays are electromagnetic waves with a wavelength of 10 to 0.01 nanometers and a frequency between 3 ⁇ 1016 hertz and 3 ⁇ 1019 hertz. Since X-rays are highly penetrable and can see the inside of an object, they are widely used in the medical field and non-destructive testing.
- the X-rays when X-rays are generated by a generator, the X-rays pass through an object and are incident to a detector, and the detector analyzes the incident radiation and outputs an X-ray image of the object.
- Such a detector may include a sensor for automatic exposure detection (AED).
- AED automatic exposure detection
- the AED sensor is a component for detecting exposure of X-rays, automatically analyzing incident X-rays, and outputting an X-ray image. That is, having an AED sensor has an advantage of automatically outputting an X-ray image without being separately connected to a generator.
- the AED sensor may have high sensitivity to detect even a small exposure of X-rays, and in this case, a malfunction may occur due to external shock or contact rather than incident of X-rays.
- the present disclosure seeks to minimize the problem of malfunctioning AED sensors.
- An object of the present disclosure is to provide a detector and an operating method thereof for acquiring a case where an AED sensor misrecognizes that X-rays have been incident due to an external impact or contact.
- An object of the present disclosure is to provide a detector that operates only when an AED sensor actually receives X-rays and an operating method thereof.
- a detector includes a plurality of sensing elements capable of detecting X-rays, a panel that converts X-rays into electrical signals, an AED sensor that detects X-rays, and an X-ray through the AED sensor.
- a main control unit that acquires image data by reading out the charge of the panel is included, and the main control unit can determine whether to perform the read-out based on the acceleration of the panel even when the AED sensor detects X-rays.
- the detector may further include an acceleration sensor that detects acceleration of the panel.
- the main control unit may output a notification about the impact of the detector based on the acceleration of the panel.
- the main controller may perform read-out when the sensor value of the AED sensor is greater than the first threshold value and the sensor value of the acceleration sensor is less than or equal to the second threshold value.
- the detector may further include a trigger signal determining unit generating a trigger signal to perform read-out when the sensor value of the AED sensor exceeds the first threshold value and the sensor value of the acceleration sensor is equal to or less than the second threshold value.
- the main controller may not perform read-out when the sensor value of the AED sensor exceeds the first threshold value and the sensor value of the acceleration sensor exceeds the second threshold value.
- the main control unit may determine sensing of the AED sensor as a false detection.
- the main controller may determine whether to store the image data based on image data acquired after performing read-out. there is.
- the main controller may store the image data when an object is detected in the image based on the obtained image data.
- the main controller may not store the image data if no object is detected in the image based on the acquired image data. there is.
- malfunction of the AED sensor may be minimized.
- the possibility of malfunction is minimized, and accordingly, rapid detection is possible with a small dose, thereby improving image quality and reducing exposure dose.
- the AED sensor since the AED sensor performs read-out only when X-rays are actually incident there is an advantage of minimizing unnecessary read-out.
- the AED sensor since the AED sensor performs read-out only when X-rays are actually incident there is an advantage in that power consumption by read-out can be reduced.
- an increase in the volume or manufacturing cost of a product is minimized because no additional parts are required.
- FIG. 1 is a diagram illustrating a generator and a detector according to an embodiment of the present disclosure.
- FIG. 2 is an exploded view illustrating a panel of a detector according to an embodiment of the present disclosure.
- FIG 3 is a graph showing dose according to X-ray sensitivity of an AED sensor according to an embodiment of the present disclosure.
- FIG. 4 is a control block diagram of a detector according to an embodiment of the present disclosure.
- FIG. 5 is a control block diagram of a detector according to another embodiment of the present disclosure.
- FIG. 6 is a flowchart illustrating a method of operating a detector according to a first embodiment of the present disclosure.
- FIG. 7 is a flowchart illustrating a method of operating a detector according to a second embodiment of the present disclosure.
- FIG. 1 is a diagram illustrating a generator and a detector according to an embodiment of the present disclosure.
- X-rays refer to radiation with strong penetrating power emitted when fast electrons collide with an object. These X-rays are widely used to take images of the human body, such as the chest, abdomen, and skeleton, and the range of use is diverse.
- a generator 2 generating X-rays and a detector 1 detecting X-rays may be required.
- a photographing target of an X-ray image may be located between the generator 2 and the detector 1. Accordingly, X-rays emitted from the generator 2 may reach the detector 1 by passing through the object to be imaged.
- the detector 1 detects X-rays emitted from the generator 2, and the size of the X-rays detected at each point may be different due to the subject to be photographed.
- the detector 1 may output an X-ray image using the X-ray size detected at each point.
- FIG. 2 is an exploded view illustrating a panel of a detector according to an embodiment of the present disclosure.
- the detector 1 may include a panel 10, and the panel 10 may be a light receiving unit that receives X-rays.
- the panel 10 includes a plurality of sensing elements capable of detecting X-rays in a matrix form, and can convert X-rays into electrical signals.
- the panel 10 may include a case 11, a scintillator 13, a TFT 15, an AED sensor 17, and a control circuit 19.
- the case 11 may protect components disposed inside the panel 10 .
- the case 11 may cover the scintillator 13, the TFT 15, the AED sensor 17, and the control circuit 19.
- the scintillator 13 may include a fluorescent material that emits light when radiation hits it.
- the scintillator 13 may emit visible light when X-rays are irradiated thereon.
- the TFT 15 may be a thin film transistor.
- the TFT 15 may be an oxide thin film transistor (Oxide TFT).
- the AED sensor 17 may detect whether X-rays are incident on the panel 10 .
- AED (Automatic Exposure Detection) sensor 17 may control the main controller 110 (see FIG. 4) to output an X-ray image by detecting whether or not X-rays are incident. That is, the AED sensor 17 may be configured so that the detector 1 automatically detects X-rays and outputs an X-ray image even if there is no signal connection between the generator 2 and the detector 1.
- the AED sensor 17 When the AED sensor 17 detects X-rays, it may generate a trigger signal and transmit the trigger signal to the main control unit 110 (refer to FIG. 4).
- the main controller 110 may output an X-ray image by converting the detected X-ray into a digital signal upon receiving the trigger signal. That is, the trigger signal may be a command that causes the detector 1 to start an operation required to output an X-ray image.
- the control circuit 19 may include various control components required for the operation of the detector 1 .
- the panel 10 may further include a plate (not shown), and the plate (not shown) is between the TFT 15 and the AED sensor 17 or between the AED sensor 17 and It can be arranged between the control circuits 19.
- the plate (not shown) may be made of lead, which may minimize the effect of X-rays on the control circuit 19 . That is, the plate (not shown) may block at least some X-rays from reaching the control circuit 19 .
- the control circuit 19 may output an X-ray image by converting the detected X-ray into a digital signal.
- the X-ray sensitivity of the AED sensor 17 is too low, it may not be able to generate a trigger signal to output an X-ray image because it cannot detect the X-ray.
- the dose unnecessarily irradiated to a person who wants to take X-rays increases, which will be described in more detail with reference to FIG. 3 .
- FIG 3 is a graph showing dose according to X-ray sensitivity of an AED sensor according to an embodiment of the present disclosure.
- the X-ray sensitivity of the AED sensor 17 is lower than in (b) of FIG. 3 .
- the dose required for the AED sensor 17 to detect that X-rays are incident is greater than the dose required in the case of FIG. 3 (b).
- Ts may indicate a starting point of X-ray irradiation
- Tr may indicate a point in time at which the AED sensor 17 generates a trigger signal.
- a malfunction in generating a trigger signal may occur due to external environments such as external shock, contact, or electrical noise even though no X-rays are actually incident. .
- the detector 1 according to an embodiment of the present disclosure aims to increase the X-ray sensitivity of the AED sensor 17 while minimizing malfunction problems.
- the detector 1 according to the embodiment of the present disclosure attempts to supplement the detection result of the AED sensor 17 using the amount of change in acceleration.
- FIG. 4 is a control block diagram of a detector according to an embodiment of the present disclosure.
- the detector 1 includes a panel 10, a gate IC controller 101, a ROIC controller 103, a memory 105, an external interface 107, a main controller 110, and trigger signal determination. It may include a unit 111 , an AED sensor 113 and an acceleration sensor 117 .
- a plurality of sensing elements capable of detecting X-rays are configured in a matrix form, so that X-rays detected through the sensing elements can be converted into electrical signals.
- the panel 10 includes gate ICs and ROICs.
- the gate IC controller 101 may perform a scan operation to read out electrical signals of the panel 10 .
- the ROIC reads out the electrical signals of the panel 10, and the ROIC control unit 103 can control the read-out operation according to the settings of the ROIC and a certain clock signal.
- the memory 105 may store data necessary for the operation of the detector 1.
- the memory 105 may store image data acquired through read-out. That is, the memory 105 may store the read image data.
- the external interface 107 may be connected to an external device (not shown).
- the external interface 107 may transmit image data to the outside (eg, server).
- the trigger signal determination unit 111 may determine whether a trigger signal is generated.
- the trigger signal determination unit 111 may obtain a sensing value of the AED sensor from the AED sensor 113 and may obtain a sensing value of the acceleration sensor 117 .
- the trigger signal determination unit 111 may determine whether a trigger signal is generated based on the sensing value of the AED sensor and the sensing value of the acceleration sensor.
- the trigger signal determination unit 111 checks whether or not the shock detection signal is received from the acceleration sensor 117, and when the shock signal is received, the detection signal of the AED sensor 113 is the shock. It is determined as a false detection by , and when the shock detection signal is not received, it is determined as a normal AED signal and a trigger signal can be generated.
- the main controller 110 may read out the charge of the panel 10 through the ROIC controller 103 and the Gate IC controller 101 using the trigger signal output from the trigger signal determiner 111 .
- the trigger signal may be a signal for determining whether to perform read out.
- the AED sensor 113 may be a sensor that determines whether lead-out starts by comparing the detected X-ray dose with a threshold value.
- the acceleration sensor 117 may be a sensor that calculates the acceleration of the detector 1 .
- the acceleration sensor 117 may detect an external impact or touch applied to the panel 10 or the detector 1 . That is, the acceleration sensor 117 may detect minute vibration or movement applied to the panel 10 or the detector 1 .
- the acceleration sensor 117 may detect the acceleration of the detector 1 and calculate information about an external shock or load applied to the detector 1 based on the detected acceleration.
- the main controller 110 may obtain information about an external shock or load through the acceleration sensor 117 and output a notification about use or management of the detector 1 based on this information.
- the main control unit 110 may output impact information history management and damage notification based on information on impact or load.
- the main controller 110 may minimize malfunction of the AED sensor 113 through the sensing value of the acceleration sensor 117 .
- the AED sensor 113 may sense that X-rays are incident due to an external shock or contact even when no X-rays are actually incident. Therefore, when the main controller 110 detects the incidence of X-rays through the AED sensor 113, it can determine whether the detection of the AED sensor 113 is a normal operation or an erroneous operation through the acceleration sensor 117. In particular, the main controller 110 may detect whether the AED sensor 113 is malfunctioning by comparing the sensor value of the acceleration sensor 117 with a threshold value.
- the main controller 110 determines that the X-ray detection of the AED sensor 113 is a malfunction when the sensor value of the acceleration sensor 117 exceeds the threshold value, and if the sensor value of the acceleration sensor 117 is below the threshold value, the AED sensor X-ray detection of (113) can be determined as normal operation. This will be described in more detail with reference to FIGS. 6 and 7 .
- the detector 1 may further include an AED sensitivity setting unit 115 and an acceleration sensor sensitivity setting unit 119.
- FIG. 5 is a control block diagram of a detector according to another embodiment of the present disclosure.
- the detector 1 includes a panel 10, a gate IC controller 101, a ROIC controller 103, a memory 105, an external interface 107, a main controller 110, and a trigger signal.
- a determination unit 111, an AED sensor 113, an acceleration sensor 117, an AED sensitivity setting unit 115, and an acceleration sensor sensitivity setting unit 119 may be included.
- the AED sensitivity setting unit 115 may set the X-ray sensitivity of the AED sensor 113 .
- the AED sensitivity setting unit 115 may increase or decrease the X-ray sensitivity of the AED sensor 113 .
- the AED sensitivity setting unit 115 may set a threshold for detection of the AED sensor 113 .
- the AED sensor 113 may determine that X-rays have been irradiated if the sensing data is equal to or greater than a set threshold.
- the acceleration sensor sensitivity setting unit 119 may set the sensitivity of the acceleration sensor 117 .
- the acceleration sensor sensitivity setting unit 119 may increase or decrease the sensitivity of the acceleration sensor 117 .
- the acceleration sensor sensitivity setting unit 119 arbitrarily sets the sensitivity of the acceleration sensor 117 using detectable impact information, the sensitivity of the AED sensor 113 can be adjusted indirectly.
- the acceleration sensor sensitivity setting unit 119 may set a threshold value to determine whether there is an external impact or touch. When the data exceeds the threshold value, the acceleration sensor 117 may determine that an external shock has occurred and generate a shock detection signal.
- FIG. 6 is a flowchart illustrating a method of operating a detector according to a first embodiment of the present disclosure.
- the AED sensor 113 may perform read (S11), and the acceleration sensor 117 may also perform read (S13).
- performing a read may mean that each sensor acquires a sensing value. That is, the AED sensor 113 and the acceleration sensor 117 may periodically perform sensing and acquire sensing values. Steps S11 and S13 may be performed simultaneously or the order may be changed.
- the sensing value of the AED sensor 113 that is, the AED sensor value
- the sensing value of the acceleration sensor 117 that is, the acceleration sensor sensor value
- the trigger signal determination unit 111 may determine whether the AED sensor value is greater than a threshold value (first threshold value) (S15).
- the trigger signal determination unit 111 may compare the AED sensor value with the threshold value and determine whether the AED sensor value is greater than or less than the threshold value.
- the AED sensor value means a sensing value of the AED sensor 113
- the threshold value means a constant determined by the sensitivity of the AED sensor 113.
- the trigger signal determining unit 111 may recognize that X-rays are not incident when the AED sensor value is less than or equal to the threshold value. Accordingly, when the AED sensor value is less than or equal to the threshold value, the AED sensor 113 may continuously perform read and the acceleration sensor 117 may also perform read.
- the trigger signal determination unit 111 may determine whether the acceleration sensor sensor value is greater than the threshold value (second threshold value) (S17).
- the trigger signal determiner 111 may compare the acceleration sensor sensor value with the threshold value and determine whether the acceleration sensor sensor value is greater than or less than the threshold value.
- the acceleration sensor sensor value means a sensing value of the acceleration sensor 117
- the threshold value may mean a constant determined by the sensitivity of the acceleration sensor 117 .
- the threshold may be a constant set to determine the presence or absence of an external impact or touch. That is, the threshold here is obviously different from the threshold in step S15.
- the trigger signal determination unit 111 may determine that an external shock or touch has occurred when the sensor value of the acceleration sensor exceeds the threshold value. That is, the trigger signal determining unit 111 may determine that an AED sensor value exceeding a threshold value is misrecognized by an external shock or touch.
- the trigger signal determiner 111 may recognize that no external shock or touch has occurred if the sensor value of the acceleration sensor is less than or equal to the threshold value. That is, the trigger signal determination unit 111 may recognize that the AED sensor value exceeds the threshold value as a sensing result due to the incidence of X-rays, and may generate a trigger signal accordingly (S19).
- the trigger signal determining unit 111 may continuously acquire the AED sensor value and the acceleration sensor value, and generate a trigger signal only when the AED sensor value exceeds the threshold value and the acceleration sensor value is less than or equal to the threshold value. there is.
- the main controller 110 may determine whether a trigger signal is generated (S21).
- the main controller 110 may not perform a separate operation when a trigger signal is not generated.
- the main controller 110 may perform read out when a trigger signal is generated.
- lead-out may mean obtaining an X-ray sensing value of the panel 10 .
- the main control unit 110 may obtain image data using an X-ray sensing value. That is, the main controller 110 may obtain image data through read-out.
- the main controller 110 may store and transmit image data (S23).
- the main controller 110 may store image data and transmit it to a display (not shown) or the like.
- the first embodiment even if the sensitivity of the AED sensor is increased, it is possible to minimize the problem of unnecessarily performing read-out due to external factors such as impact or touch. That is, according to the first embodiment, a read-out operation due to erroneous sensing of the AED sensor can be blocked.
- the detector 1 first performs read-out, but may determine whether or not the AED sensor has incorrectly sensed through image data. This is to minimize a problem in which lead-out is not performed despite the user's intention to capture an actual X-ray image.
- the second embodiment will be described in detail with reference to FIG. 7 .
- FIG. 7 is a flowchart illustrating a method of operating a detector according to a second embodiment of the present disclosure.
- the AED sensor 113 may perform read (S31), and the acceleration sensor 117 may also perform read (S33).
- steps S31 and S33 are the same as steps S11 and S13 of FIG. 6 , duplicate descriptions will be omitted.
- the trigger signal determination unit 111 may determine whether the AED sensor value is greater than a threshold value (first threshold value) (S35).
- the trigger signal determination unit 111 may compare the AED sensor value with the threshold value and determine whether the AED sensor value is greater than or less than the threshold value.
- the AED sensor value means a sensing value of the AED sensor 113
- the threshold value means a constant determined by the sensitivity of the AED sensor 113.
- the trigger signal determining unit 111 may recognize that X-rays are not incident when the AED sensor value is less than or equal to the threshold value. Accordingly, when the AED sensor value is less than or equal to the threshold value, the AED sensor 113 may continuously perform read and the acceleration sensor 117 may also perform read.
- the trigger signal determination unit 111 may determine whether the acceleration sensor sensor value is greater than the threshold value (second threshold value) (S37).
- the trigger signal determiner 111 may compare the acceleration sensor sensor value with the threshold value and determine whether the acceleration sensor sensor value is greater than or less than the threshold value.
- the acceleration sensor sensor value means a sensing value of the acceleration sensor 117
- the threshold value may mean a constant determined by the sensitivity of the acceleration sensor 117 .
- the threshold may be a constant set to determine the presence or absence of an external impact or touch. That is, the threshold here is obviously different from the threshold in step S35.
- the trigger signal determination unit 111 may determine that an external shock or touch has occurred when the sensor value of the acceleration sensor exceeds the threshold value. That is, the trigger signal determining unit 111 may determine that an AED sensor value exceeding a threshold value is misrecognized by an external shock or touch.
- the trigger signal determiner 111 may recognize that no external shock or touch has occurred if the sensor value of the acceleration sensor is less than or equal to the threshold value. That is, the trigger signal determination unit 111 may recognize that the AED sensor value exceeds the threshold value as a sensing result due to the incidence of X-rays.
- the trigger signal determiner 111 may generate an AED false detection signal if the acceleration sensor sensor value exceeds the threshold value (S39), and may not separately generate an AED false detection signal if the acceleration sensor sensor value is less than or equal to the threshold value. .
- the AED misdetection signal may be a signal indicating that the AED sensor 113 detects X-rays incorrectly.
- the main control unit 110 may perform read-out (S41).
- the main controller 110 performs read-out and then acquires image data. Based on this, it is possible to determine whether to store image data.
- lead-out may mean obtaining an X-ray sensing value of the panel 10 .
- the main control unit 110 may obtain image data using an X-ray sensing value. That is, the main controller 110 may obtain image data through read-out.
- the main control unit 110 may determine whether an AED false detection signal is generated (S43).
- the main control unit 110 may store and transmit image data when no AED false detection signal is generated (S45).
- the main controller 110 may store image data and transmit it to a display (not shown) or the like.
- the main control unit 110 may analyze the video data profile when an AED false monitoring signal is generated (S47).
- the main controller 110 may analyze image data acquired through read-out.
- the main controller 110 may determine whether the image data is meaningful (S49).
- the significance of the image data means that the image data is actually determined as an X-ray image of a specific target. If the read-out is performed due to an erroneous operation, there will be no object, that is, an object, in the X-ray image.
- the main controller 110 may determine whether the image data is meaningful by analyzing the image data and detecting the presence or absence of an object. As a result of analyzing the image data, the main controller 110 may determine that the image data is meaningful when an object is detected, and may determine that the image data is meaningless when an object is not detected.
- the main controller 110 may store and transmit the image data. On the other hand, the main controller 110 may not perform any operation if the image data is meaningless.
- the main controller 110 may store the image data if an object is detected in the image based on the obtained image data, and may not store the image data if the object is not detected in the image.
- the main controller 110 performs a readout when the sensor value of the AED sensor 113 exceeds the first threshold value and the sensor value of the acceleration sensor 117 exceeds the second threshold value. After performing the process, it may be determined whether to store (or transmit) the image data based on the acquired image data.
- the second embodiment by first performing read-out and then analyzing image data, there is an advantage in that it is possible to more accurately detect whether or not the AED sensor 113 is malfunctioning.
- the detector 1 having an automatic exposure detection (AED) sensor 113 is provided with one or more acceleration sensors 117 to control the AED operation, and at this time, the acceleration sensor 117 has an externally applied
- An arbitrary threshold may be set to determine whether shock, contact, vibration, or the like occurs.
- an impact detection signal may be generated.
- the main controller 110 checks whether or not an impact detection signal is generated by the acceleration sensor 117, and when the impact detection signal is generated, the trigger signal may be determined to be an erroneous detection due to an impact.
- the main control unit 110 checks whether or not an impact detection signal is generated from the acceleration sensor 117. can judge When determining that a trigger signal is generated by normal X-ray irradiation, the main controller 110 may read out image data of the panel 10 and store or transmit the image data to a server. When it is determined that a trigger signal is generated by false detection, the May control unit 110 blocks the transition to the image data read-out stage of the panel 10, or blocks the stage of storing or transmitting image data that has already been read out to the server, and detects triggers and shocks. signal can be turned off.
- the shock detection sensitivity is adjusted by setting the threshold of the acceleration sensor 117, and through this, the sensitivity of the AED sensor 113 can be adjusted indirectly.
- the sensitivity of the AED sensor 113 can be adjusted indirectly.
- the main control unit 110 controls the AED sensor 113 to exceed the second threshold value. Sensing can be judged as a false sense.
- the main control unit 110 performs read-out and obtains Based on the received image data, whether to store the image data may be determined.
- the main controller 110 controls the AED sensor 113 even if the sensor value of the AED sensor 113 exceeds the first threshold value and the sensor value of the acceleration sensor 117 exceeds the second threshold value.
- a sensing error may be determined based on image data.
- the detector 1 determines whether the AED sensor 113 malfunctions according to the sensing value of the acceleration sensor 117, so if the output signal of the acceleration sensor 117 is blocked. In this case, even if the AED sensor 113 responds to an external shock, it is not possible to determine whether the AED sensor 113 is malfunctioning, so that read-out may be performed, and thus power consumption may increase. On the other hand, if the output of the acceleration sensor 117 is normally transmitted, even if an external impact is applied to the detector 1, the sensing of the AED sensor 113 is ignored and read-out may not be performed. may not occur. That is, it can be confirmed that the acceleration sensor 117 is used to determine whether the AED sensor 113 malfunctions.
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Abstract
Description
Claims (10)
- X 선을 검출할 수 있는 복수개의 센싱 소자를 구비하며, X 선을 전기적인 신호로 변환하는 패널;상기 X 선을 감지하는 AED 센서;상기 AED 센서를 통해 X 선이 감지되면, 상기 패널의 전하를 리드 아웃하여 영상 데이터를 획득하는 메인 제어부를 포함하고,상기 메인 제어부는상기 AED 센서가 X 선을 감지해도 상기 패널의 가속도에 기초하여 상기 리드 아웃의 수행 여부를 결정하는디텍터.
- 청구항 1에 있어서,상기 패널의 가속도를 감지하는 가속도 센서를 더 포함하는디텍터.
- 청구항 2에 있어서,상기 메인 제어부는상기 패널의 가속도에 기초하여 상기 디텍터의 충격에 대한 알림을 출력하는디텍터.
- 청구항 2에 있어서,상기 메인 제어부는상기 AED 센서의 센서값이 제1 임계값 초과이고, 상기 가속도 센서의 센서값이 제2 임계값 이하일 때 상기 리드 아웃을 수행하는디텍터.
- 청구항 4에 있어서,상기 AED 센서의 센서값이 제1 임계값 초과이고, 상기 가속도 센서의 센서값이 제2 임계값 이하이면, 상기 리드 아웃이 수행되도록 트리거 신호를 발생시키는 트리거 신호 판단부를 더 포함하는디텍터.
- 청구항 2에 있어서,상기 메인 제어부는상기 AED 센서의 센서값이 제1 임계값 초과이고, 상기 가속도 센서의 센서값이 제2 임계값 초과이면 상기 리드 아웃을 수행하지 않는디텍터.
- 청구항 6에 있어서,상기 메인 제어부는상기 AED 센서의 센서값이 제1 임계값 초과이고, 상기 가속도 센서의 센서값이 제2 임계값 초과이면, 상기 AED 센서의 센싱을 오감지로 판단하는디텍터.
- 청구항 2에 있어서,상기 메인 제어부는상기 AED 센서의 센서값이 제1 임계값 초과이고, 상기 가속도 센서의 센서값이 제2 임계값 초과이면, 상기 리드 아웃을 수행한 후 획득된 영상 데이터에 기초하여 영상 데이터의 저장 여부를 결정하는디텍터.
- 청구항 8에 있어서,상기 메인 제어부는상기 AED 센서의 센서값이 제1 임계값 초과이고, 상기 가속도 센서의 센서값이 제2 임계값 초과이면, 획득된 영상 데이터에 기초하여 영상에서 오브젝트가 검출되면 상기 영상 데이터를 저장하는디텍터.
- 청구항 9에 있어서,상기 메인 제어부는상기 AED 센서의 센서값이 제1 임계값 초과이고, 상기 가속도 센서의 센서값이 제2 임계값 초과이면, 획득된 영상 데이터에 기초하여 영상에서 오브젝트가 검출되지 않으면 상기 영상 데이터를 저장하지 않는디텍터.
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CN202180100094.8A CN117581118A (zh) | 2021-06-30 | 2021-06-30 | X射线检测器及其动作方法 |
PCT/KR2021/008304 WO2023277221A1 (ko) | 2021-06-30 | 2021-06-30 | 엑스레이 디텍터 및 그의 동작 방법 |
KR1020237034647A KR20230158014A (ko) | 2021-06-30 | 2021-06-30 | 엑스레이 디텍터 및 그의 동작 방법 |
US18/561,662 US20240159920A1 (en) | 2021-06-30 | 2021-06-30 | X-ray detector and operation method thereof |
EP21948521.6A EP4365637A1 (en) | 2021-06-30 | 2021-06-30 | X-ray detector and operation method thereof |
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PCT/KR2021/008304 WO2023277221A1 (ko) | 2021-06-30 | 2021-06-30 | 엑스레이 디텍터 및 그의 동작 방법 |
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EP (1) | EP4365637A1 (ko) |
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Citations (5)
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JP2005003755A (ja) * | 2003-06-10 | 2005-01-06 | Fuji Photo Film Co Ltd | 画像情報検出用カセッテ |
US20060071172A1 (en) * | 2004-10-04 | 2006-04-06 | Ertel Jason R | X-ray detector with impact absorbing cover |
JP2009034428A (ja) * | 2007-08-03 | 2009-02-19 | Konica Minolta Medical & Graphic Inc | X線撮影システム |
KR20140148247A (ko) * | 2013-06-21 | 2014-12-31 | 삼성전자주식회사 | 모바일 x 선 장치의 x 선 튜브와 디텍터를 정렬하기 위한 정보 제공 방법 및 정보 제공 장치, 및 무선 디텍터 |
KR20190037487A (ko) * | 2017-09-29 | 2019-04-08 | 삼성전자주식회사 | 엑스선 촬영 장치 및 디텍터의 장착 위치 판단 방법 |
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2021
- 2021-06-30 WO PCT/KR2021/008304 patent/WO2023277221A1/ko active Application Filing
- 2021-06-30 KR KR1020237034647A patent/KR20230158014A/ko unknown
- 2021-06-30 US US18/561,662 patent/US20240159920A1/en active Pending
- 2021-06-30 EP EP21948521.6A patent/EP4365637A1/en active Pending
- 2021-06-30 CN CN202180100094.8A patent/CN117581118A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2005003755A (ja) * | 2003-06-10 | 2005-01-06 | Fuji Photo Film Co Ltd | 画像情報検出用カセッテ |
US20060071172A1 (en) * | 2004-10-04 | 2006-04-06 | Ertel Jason R | X-ray detector with impact absorbing cover |
JP2009034428A (ja) * | 2007-08-03 | 2009-02-19 | Konica Minolta Medical & Graphic Inc | X線撮影システム |
KR20140148247A (ko) * | 2013-06-21 | 2014-12-31 | 삼성전자주식회사 | 모바일 x 선 장치의 x 선 튜브와 디텍터를 정렬하기 위한 정보 제공 방법 및 정보 제공 장치, 및 무선 디텍터 |
KR20190037487A (ko) * | 2017-09-29 | 2019-04-08 | 삼성전자주식회사 | 엑스선 촬영 장치 및 디텍터의 장착 위치 판단 방법 |
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US20240159920A1 (en) | 2024-05-16 |
KR20230158014A (ko) | 2023-11-17 |
CN117581118A (zh) | 2024-02-20 |
EP4365637A1 (en) | 2024-05-08 |
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