Method, device and storage medium for preventing false triggering of flat panel detector

Abstract

This invention discloses a detection method, device, and storage medium to prevent false triggering of the image by a flat panel detector. The method involves controlling the sensor of the flat panel detector to detect changes in the grayscale values ​​of the panel image. When a grayscale value change in the image exceeds a first preset value, the sensor's detection of the panel image is paused. After a predetermined time, the sensor is restarted to read the panel image line by line, and the reading results are cached in a memory. The number of grayscale values ​​changing on the panel that exceed a second preset value is counted to determine whether the read panel image is an X-ray exposure image or an interference image. This invention enables the flat panel detector to operate more stably when using its automatic exposure triggering function, preventing false triggering due to strong electromagnetic interference or vibration, and avoiding the transmission of unqualified images to the host computer.

Description

Technical Field

[0001] This invention relates to the field of detector false triggering, and more particularly to a detection method, device and storage medium for preventing false triggering of the above figure by a flat panel detector. Background Technology

[0002] X-ray flat panel detector exposure can generally be divided into two types: external triggering and internal triggering. External triggering refers to the high voltage generator controlling the exposure of the flat panel detector; internal triggering is achieved by converting X-rays into visible light through the scintillation material on the flat panel detector. The visible light then passes through a photoelectric sensor to output current, which is then converted into a digital signal by an analog-to-digital converter (ADC). Finally, an electrical (digital) signal is output, and the flat panel detector controls the exposure based on this electrical signal. However, due to the high sensitivity of the photoelectric sensor in internal triggering, the flat panel detector is prone to false triggering, resulting in the acquisition of unqualified images that cannot meet the user's needs.

[0003] Externally triggered exposure requires the X-ray switch signal on the high-voltage generator to control the exposure of the flat panel detector. However, since the high-voltage generator and the flat panel detector must be connected, it is inconvenient to use. Therefore, using a flat panel detector with automatic exposure control function can solve the above problem.

[0004] However, the principle of automatic exposure detection in flat panel detectors is generally based on determining the presence of X-rays by analyzing the grayscale values ​​of the panel image captured by the detector's sensor. However, the panel of a flat panel detector is highly susceptible to interference. Strong electromagnetic interference or vibration can cause the sensor to detect larger values, which may be mistaken for normal X-ray exposure, triggering image acquisition and the above-mentioned trigger. In such cases, the acquired image is invalid.

[0005] Therefore, how to prevent false triggering of the above image when using automatic exposure detection on a flat panel detector, obtain stable and reliable images, and ensure that users do not have to worry about whether the acquired images are unqualified has become one of the urgent problems to be solved by those skilled in the art. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, one of the objectives of this invention is to provide a detection method that prevents flat panel detectors from falsely triggering image uploads, thereby improving the stability of flat panel detectors when using the automatic exposure detection function. This method prevents false triggering due to strong electromagnetic interference or vibration, and avoids transmitting substandard images to the host computer. The advantage of this invention is that it avoids false triggering of the flat panel detector when using the automatic exposure detection function, ensuring that every acquired image is a qualified bright field (image captured by X-rays).

[0007] The second objective of this invention is to provide a device that performs the above-described method for preventing flat panel detectors from erroneously triggering the detection function shown in the figure above, thereby improving the stability of flat panel detectors when using the automatic exposure detection function.

[0008] A third objective of this invention is to provide a storage medium that performs the aforementioned detection method to prevent the flat panel detector from erroneously triggering the detection function shown in the figure above, thereby improving the stability of the flat panel detector when using the automatic exposure detection function.

[0009] One of the objectives of this invention is achieved through the following technical solution:

[0010] The method to prevent the flat panel detector from falsely triggering the detection shown in the image above includes the following steps:

[0011] Step S1: Control the sensor of the flat panel detector to detect the change in grayscale value of the image of the flat panel detector panel. When the grayscale value change in the image is greater than a first preset value, pause the sensor's detection of the panel image.

[0012] Step S2: After a predetermined period of time, the sensor is controlled again to read the image of the panel line by line, and the reading results are cached in the memory;

[0013] Step S3: Count the number of grayscale values ​​that change in the read panel image. If the number of grayscale values ​​that change in the panel image is greater than a second preset value, determine that the read panel image is an X-ray exposure image and upload the image cached in the memory; otherwise, determine that the read panel image is an interference image, delete the image stored in the memory, and return to step S1.

[0014] Furthermore, the first preset value is set to 900-1100.

[0015] Furthermore, the first preset value is set to 1000.

[0016] Furthermore, the predetermined duration is the actual reserved exposure time.

[0017] Furthermore, the second preset value is set to 100,000.

[0018] The second objective of this invention is achieved by the following technical solution:

[0019] An electronic device includes a memory storing a computer program and a processor; when the computer program is executed by the processor, it implements the detection method shown in the figure above to prevent the flat panel detector from being falsely triggered.

[0020] The third objective of this invention is achieved by the following technical solution:

[0021] A computer-readable storage medium storing an executable computer program that, when executed, enables the detection method shown in the figure above to be prevented from being falsely triggered by a flat panel detector.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention provides a detection method, device, and storage medium to prevent false triggering of images by a flat panel detector. It enables the flat panel detector to be more stable when using the automatic exposure triggering function of the flat panel detector, and will not be subject to strong electromagnetic interference or vibration that would cause false triggering of images. At the same time, it avoids the transmission of unqualified images to the host computer. Attached Figure Description

[0024] Figure 1 This is a flowchart illustrating the false triggering detection of the flat panel detector in this invention. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] It should be noted that the descriptions involving "first," "second," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention. The detection method for preventing false triggering of the above image by the flat panel detector provided by this invention can transmit a qualified exposure brightness field image to a host computer, which is generally a personal computer.

[0028] Example 1

[0029] like Figure 1 As shown, this embodiment provides a detection method to prevent false triggering of a flat panel detector, including the following steps:

[0030] Step S1: Control the sensor of the flat panel detector to detect the change in grayscale value of the image of the flat panel detector panel. When the grayscale value change in the image is greater than a first preset value, pause the sensor's detection of the panel image.

[0031] Step S2: After a predetermined period of time, the sensor is controlled again to read the image of the panel line by line, and the reading results are cached in the memory;

[0032] Step S3: Count the number of grayscale values ​​that change in the read panel image. When the number of grayscale values ​​that change in the panel image is greater than the second preset value, determine that the read panel image is an X-ray exposure image and upload the image cached in the memory. Otherwise, determine that the read panel image is an interference image, delete the image stored in the memory, and return to step S1.

[0033] Preferably, in step S2 of this embodiment, the sensor is re-controlled to read the panel image line by line, but it is not directly uploaded to the host computer. Instead, the reading results are cached in the memory. After the image acquisition is completed, the statistical results are used to determine whether the image is a normal exposure image. If the panel image is determined to be an X-ray exposure image, the image cached in the memory is uploaded; otherwise, if the panel image is determined to be an interference image, the image stored in the memory is deleted, and the process returns to step S1 to continue the detection action. This avoids uploading unqualified images to the host computer.

[0034] Preferably, in this embodiment, the sensor is re-controlled to read the image of the panel in step S2 by reading it line by line. The image of the panel is read line by line by reading the gray values ​​of the image, starting from the first line. By reading the gray values ​​of the image in an orderly manner, errors or omissions can be effectively avoided when reading the image, thus improving the accuracy of image reading.

[0035] Example 2

[0036] In this embodiment, the first preset value is set to 900-1100, which is relatively low, in order not to lose X-ray dose.

[0037] Preferably, the first preset value is set to 1000, because the grayscale value read by the flat panel detector is around 1000 when it is not exposed. Even if it is disturbed or vibrated, the grayscale value of some rows will change locally, but it will not change the entire panel. However, during actual exposure, the entire panel receives X-rays at the same time.

[0038] In this embodiment, the predetermined duration is the actual reserved exposure time, which can be set by the user. When the grayscale value of the panel image increases, it may be due to interference or vibration. Therefore, it is necessary to wait for the exposure to be completed before re-detecting the image.

[0039] In this embodiment, the second preset value is set to 100,000. When the number of grayscale values ​​that change on the panel is greater than the second preset value, it is determined that the read panel image is an X-ray exposure image, and the image cached in the memory is uploaded; otherwise, it is determined that the read panel image is an interference image, the image stored in the memory is deleted, and the process returns to step S1 to continue the detection operation.

[0040] Preferably, the detection method in this embodiment is adaptable to various types of flat panel detectors, has few limitations, and has wide applicability.

[0041] The detection method for preventing false triggering of the above image by the flat panel detector provided by the present invention can make the flat panel detector more stable when using the automatic exposure triggering function of the flat panel detector, and will not be subject to strong electromagnetic interference or vibration that would cause false triggering of the above image, while avoiding the transmission of unqualified images to the host computer.

[0042] Example 3

[0043] In addition, the present invention also provides a computer-readable storage medium storing an executable computer program, which is executed by a processor to prevent the flat panel detector from falsely triggering the detection method shown in the figure above.

[0044] In this embodiment, the computer-readable storage medium includes a read-only memory, a random access memory, a programmable read-only memory, an erasable programmable read-only memory, a read-only optical disc or other optical disc storage, a disk storage, a magnetic tape storage, or any other computer-readable medium capable of storing data.

[0045] This invention can be used in a variety of general-purpose or special-purpose computer systems or configurations. Examples include: desktop computers, server computers, handheld devices, portable devices, tablet devices, minicomputers, mainframe computers, and computing environments including any of the above systems or devices.

[0046] Example 4

[0047] Based on the same inventive concept, the present invention provides an electronic device, including a memory storing a computer program and a processor; when the computer program is executed by the processor, it implements the detection method shown in the figure above to prevent the flat panel detector from being falsely triggered.

[0048] The device in this embodiment and the method in the previous embodiment are two aspects based on the same inventive concept. The implementation process of the method has been described in detail above, so those skilled in the art can clearly understand the structure and implementation process of the system in this embodiment based on the foregoing description. For the sake of brevity, it will not be described again here.

[0049] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this invention.

Claims

1. A method for preventing false triggering of the detection shown in the figure above by a flat panel detector, characterized in that, Includes the following steps: Step S1: Control the sensor of the flat panel detector to detect the change in grayscale value of the image of the flat panel detector panel. When the grayscale value change in the image is greater than a first preset value, pause the sensor's detection of the panel image. Step S2: After a predetermined period of time, the sensor is controlled again to read the image of the panel line by line, and the reading results are cached in the memory; Step S3: Count the number of grayscale values ​​that change in the read panel image. When the number of grayscale values ​​that change in the panel image is greater than the second preset value, determine that the read panel image is an X-ray exposure image and upload the image cached in the memory. Otherwise, if the read panel image is determined to be an interference image, the image stored in the memory is deleted, and the process returns to step S1.

2. The method for preventing false triggering of the detection diagram above by the flat panel detector according to claim 1, characterized in that, The first preset value is set to 900-1100.

3. The method for preventing false triggering of the detection diagram above by the flat panel detector according to claim 2, characterized in that, The first preset value is set to 1000.

4. The method for preventing false triggering of the detection diagram above by the flat panel detector according to claim 1, characterized in that, The scheduled duration is the actual exposure time reserved.

5. The method for preventing false triggering of the detection diagram above by the flat panel detector according to claim 1, characterized in that, The second preset value is set to 100,000.

6. An electronic device, characterized in that, It includes a memory storing a computer program and a processor; when the computer program is executed by the processor, it implements the detection method described in any one of claims 1-5 for preventing the flat panel detector from falsely triggering the detection shown in the figure above.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores an executable computer program, which, when executed, can implement the detection method described in any one of claims 1-5 for preventing the flat panel detector from falsely triggering the detection diagram above.

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