Vehicle-mounted X-ray radiography system

Abstract

The invention discloses a vehicle-mounted X-ray shooting system which comprises a vehicle body and is characterized in that a controller, a high-voltage generator, a detector and an X-ray bulb tube generator are arranged in the vehicle body, and the controller is in communication connection with the high-voltage generator and the detector; wherein the high-voltage transmitter is used for receiving an exposure starting instruction sent by the controller and bombarding a target material to the X-ray bulb tube generator to generate X rays; the detector is used for receiving the X-rays and generating image data so as to send the image data to the controller; and the controller corrects the image data according to the virtual grid to generate a target picture. According to the vehicle-mounted X-ray radiography system, the X-ray radiography system can be combined with the vehicle, and the virtual grid is matched to correct the picture, so that a relatively high radiography effect is achieved under low radiation dose, the radiation dose suffered by a patient is reduced, and mobile medical service is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of image processing, and in particular to a vehicle-mounted X-ray imaging system. Background Art

[0002] As we all know, medical equipment is the foundation of all medical services. However, in rural or remote impoverished areas, the lack of medical equipment and qualified medical personnel makes it difficult to provide basic medical services. Furthermore, natural disasters can cause a surge in the number of injured, making it difficult for local hospitals to meet demand. Therefore, a mobile hospital is needed to meet the diagnosis and treatment needs of various diseases in these situations.

[0003] Research has found that in the current existing technology, although there are medical care vehicles and other surgical vehicles used to provide medical services to marginal mountainous areas or disaster areas where natural disasters occur, such as performing simple trauma debridement operations, their functions are relatively single and generally only provide specific medical services. They are unable to effectively diagnose and treat a variety of diseases and lack conventional technical equipment for examining certain diseases, such as X-ray examinations. They still cannot realize the functions of ordinary hospitals, resulting in the inability to meet the people's disease treatment needs.

[0004] At the same time, conventional X-ray machines currently used in hospitals cannot be directly applied to vehicles. In such medical care vehicles, due to limited medical conditions, it is difficult for the examinee to receive effective radiation protection for non-examined body parts as in the hospital environment. When the X-ray machine is used to directly examine the patient, there is a problem of high radiation dose, which may cause the examinee to suffer unexpected radiation damage and affect the examinee's physical health.

[0005] In addition, the situation of scoliosis among adolescents across the country is relatively serious, and most adolescents do not undergo timely examinations and detection, resulting in missing the best time for treatment. The large-format vehicle-mounted X-ray machine provides an efficient and convenient solution for this type of examination. The car can drive to designated schools and conduct batch examinations for adolescents with potential scoliosis. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a vehicle-mounted X-ray radiography method and system, so as to integrate the X-ray radiography system with the vehicle to realize mobile medical services, and provide spinal screening and routine X-ray examination services to primary and secondary schools or areas with inconvenient medical conditions. In addition, the method also uses a virtual filter grid algorithm to correct the image to achieve higher radiographic effects at a low radiation dose, thereby reducing the radiation dose to the examinee.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solution: a vehicle-mounted X-ray radiography system, which includes a vehicle body, wherein the vehicle body includes: a controller, a high-voltage generator, a detector, and an X-ray tube generator, wherein the controller is communicatively connected with the high-voltage generator and the detector respectively; The high-voltage transmitter is used to receive an exposure start instruction from the controller and bombard the target material with the X-ray tube generator to generate X-rays; the detector is used to receive the X-rays and generate image data, and then send the image data to the controller; the controller corrects the image data according to the virtual grid to generate a target image.

[0008] In the above technical solution of the present invention, the present invention designs a new vehicle-mounted X-ray radiography system, which can integrate a high-voltage generator, a detector and an X-ray tube generator in the vehicle body, and use a high-voltage transmitter to bombard the target material of the X-ray tube generator to generate X-rays, so that the X-rays are obtained through the detector and image data is generated to complete the X-ray shooting of the subject, thereby realizing mobile medical services. It can provide medical services in remote mountainous areas or disaster areas where natural disasters occur, and can greatly improve medical convenience.

[0009] Accordingly, to prevent the subject from receiving excessive radiation doses, the above-mentioned technical solution of the present invention also optimizes the design of the controller to receive the image data acquired by the detector and correct the image data using a virtual grid to generate the final target image, thereby improving the quality of the target image. Since the quality of the target image has been significantly improved, when the vehicle-mounted X-ray radiography system is actually used, it can achieve higher radiographic effects at low radiation doses, thereby reducing the radiation dose received by the subject. It can be seen that the vehicle-mounted X-ray radiography system designed based on the present invention can effectively solve the problem of the lack of X-ray inspection function in existing medical care vehicles and the high radiation dose when using X-ray machines to directly examine patients at a low cost. It has good promotion prospects and application value.

[0010] Furthermore, the vehicle-mounted X-ray radiography system of the present invention further includes a beam splitter, which is communicatively connected to the controller; wherein the beam splitter receives exposure parameters sent from the controller and adjusts the area size of the exposure window.

[0011] Furthermore, in the vehicle-mounted X-ray radiography system described in the present invention, the detector is equipped with an AEC automatic exposure cut-off system. When the AEC automatic exposure cut-off system detects that the exposure requirements are met, it sends an exposure cut-off instruction to the controller and controls the high-voltage generator to stop working.

[0012] Furthermore, in the vehicle-mounted X-ray radiography system of the present invention, the controller corrects the image data according to the virtual grid to generate a target image, specifically: obtaining an input image based on the image data, and performing pre-correction processing on the input image; Inputting the pre-corrected image into a virtual grid algorithm to segment it into a plurality of thickness images of different thicknesses, and obtaining the scattering intensity of each of the thickness images to obtain a corrected image after removing the scattering intensity; The rectified image is enhanced to generate a target image.

[0013] Furthermore, in the vehicle-mounted X-ray radiography system of the present invention, the pre-correction of the input image includes at least one of dark field image correction, image gain correction and image bad pixel correction.

[0014] Furthermore, in the vehicle-mounted X-ray radiography system of the present invention, enhancing the image after virtual grid correction includes at least one of image noise reduction, image pre-stretching, image detail contrast enhancement, and image post-stretching.

[0015] Furthermore, in the vehicle-mounted X-ray radiography system of the present invention, the virtual grid algorithm segments the corrected image into thickness images of different thicknesses according to the segmentation threshold of the image attenuation domain, namely:

[0016] in, thr 1, thr 2 and thr 3 represents the segmentation thresholds of different thicknesses; thick 1, thick 2 and thick 3 respectively represent the thickness images segmented into different thicknesses.

[0017] Furthermore, in the vehicle-mounted X-ray radiography system of the present invention, the scattering intensity of each thickness image is obtained to obtain a corrected image after removing the scattering, specifically: a scattering convolution kernel corresponding to each thickness image is obtained according to the energy spectrum simulation data, and the scattering intensity is calculated by an iterative convolution method, that is:

[0018] in, k 1. k 2 and k 3 respectively represent thick 1, thick 2 and thick The scattering convolution kernel corresponding to the thickness image of 3.

[0019] The calculated scattering intensity is subtracted from the pre-corrected image to obtain the corrected image, namely: .

[0020] Furthermore, the vehicle-mounted X-ray radiography system of the present invention also includes: the controller segments the spine in the target image to divide the spine into multiple vertebrae, and calculates the maximum Cobb angle of each segmented vertebra, and marks it in the target image.

[0021] Furthermore, in the vehicle-mounted X-ray radiography system of the present invention, the controller extracts the center position of each vertebra and confirms the relative position of each vertebra from the central axis to evaluate the severity of the scoliosis of each vertebra.

[0022] The beneficial effects of the present invention are as follows: the present invention designs a new vehicle-mounted X-ray radiography system with an optimized structural design. By integrating a high-voltage generator, a detector, and an X-ray tube generator into the vehicle body, and using a high-voltage transmitter to bombard a target material of the X-ray tube generator to generate X-rays, the detector acquires the X-rays and generates image data, completing X-ray imaging of the subject. The vehicle-mounted X-ray radiography system can provide medical services in remote mountainous areas or disaster-stricken areas after natural disasters, and can provide spinal screening and routine X-ray examination services to primary and secondary schools or areas with inconvenient medical conditions. It can examine patients anytime and anywhere, effectively improving the efficiency and timeliness of examinations, thereby greatly improving medical convenience. At the same time, the controller of the vehicle-mounted X-ray radiography system designed by the present invention is also equipped with a virtual grid algorithm to correct images, so as to achieve higher imaging effects at a low radiation dose, reducing the radiation dose received by patients. The vehicle-mounted X-ray radiography system has good promotion prospects and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic structural diagram of the vehicle-mounted X-ray imaging system according to one embodiment of the present invention.

[0024] Figure 2 The present invention is a flowchart of the steps of performing radiography using the vehicle-mounted X-ray radiography system according to one embodiment of the present invention.

[0025] Figure 3 The present invention is a flowchart of the steps of performing image processing by a controller of the vehicle-mounted X-ray imaging system in one embodiment.

[0026] Figure 4 FIG1 is a diagram of a controller of a vehicle-mounted X-ray radiography system according to an embodiment of the present invention, FIG1 is a diagram of a virtual grid before correction and FIG1 is a diagram of a virtual grid after correction.

[0027] Figure 5A schematic diagram of a controller of the vehicle-mounted X-ray imaging system according to one embodiment of the present invention performing segmentation of the spine in a target image.

[0028] Description of labels: 1. Vehicle body; 11. Driver's cab; 12. Carriage; 2. Controller; 3. High voltage generator; 4. Detector; 5. X-ray tube generator. DETAILED DESCRIPTION

[0029] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0030] like Figure 1-Figure 5 As shown, in this embodiment, the present invention designs a new vehicle-mounted X-ray radiography system, which includes a vehicle body 1 and a cab 11 and a compartment 12 arranged in the vehicle body 1. The compartment 12 includes: a controller 2, a high-voltage generator 3, a detector 4 and an X-ray tube generator 5. The controller 2 is communicated with the high-voltage generator 3 and the detector 4 respectively (see Figure 1 ); Among them, the reason why the above-mentioned controller 2, high-voltage generator 3, detector 4 and X-ray tube generator 5 are arranged in the carriage 12 is to facilitate transportation and use, and to enable the subject to complete X-ray filming in the carriage 12.

[0031] In actual application, the vehicle body 1 of the above-mentioned vehicle-mounted X-ray radiography system can be specifically selected to meet the shooting distance of more than 1.8m, so as to ensure that there is a suitable distance between the subject and the detector 4, and to ensure that long bone shooting (whole spine, whole lower limb shooting) can be completed in one shot; of course, the present invention does not specifically limit the vehicle body 1 used, and it can be selected according to actual conditions.

[0032] In the present invention, the high-voltage generator 3, detector 4, and X-ray tube generator 5 in the vehicle-mounted X-ray radiography system, together with the beam splitter, can form an X-ray machine disposed in the vehicle compartment 12. Furthermore, in actual use, the controller 2 is also in communication with the beam splitter to receive exposure parameters sent by the controller 2.

[0033] See also Figure 2 As shown, in actual application, the controller 2 in the designed vehicle-mounted X-ray radiography system can obtain the exposure parameters preset by the user in the computer software system and send the exposure parameters to the beam splitter. After receiving the exposure parameters sent by the controller 2, the beam splitter will set the appropriate exposure window area accordingly to ensure that the subject receives the lowest possible exposure dose.

[0034] At this time, when X-ray radiography is required, the controller 2 will send a start exposure instruction to the high-voltage generator 3. After receiving the start exposure instruction, the high-voltage generator 3 starts and begins to emit electrons. The electrons emitted by the high-voltage generator 3 bombard the target material toward the X-ray tube generator 5 to generate X-rays of corresponding intensity; the detector 4 in the above-mentioned vehicle-mounted X-ray radiography system will receive the X-rays and generate image data, and send the generated image data to the controller 2. The controller 2 will then perform virtual grid correction on the image data to generate a target image.

[0035] It should be pointed out that in order to further reduce the exposure dose borne by the subject, in this embodiment, the above-mentioned detector 4 is also equipped with an AEC automatic exposure cut-off system. When the AEC automatic exposure cut-off system detects that the exposure requirements are met, it sends an exposure cut-off instruction to the controller 2 and controls the high-voltage generator 3 to stop working, so as to avoid adverse effects on the subject's health due to excessive exposure.

[0036] Accordingly, in the present invention, the vehicle-mounted X-ray imaging system's compartment 12 can be equipped with a large-format flat-panel detector 4, for example, a 3072mm x 8702mm flat-panel detector 4. This ensures that long bone imaging (such as the entire spine or lower limbs) can be completed in a single exposure. Compared to traditional imaging methods that require multiple exposures and angle stitching, this significantly reduces the radiation dose experienced by the patient. Of course, to meet actual usage requirements, the vehicle-mounted X-ray imaging system's compartment 12 can also be equipped with supporting facilities such as air conditioning, lead windows, lead doors, lead shielding walls, and a power supply box.

[0037] At the same time, in the present invention, the controller 2 is used to perform virtual grid correction on the image data, and low-dose X-ray radiography is achieved through the virtual grid algorithm, that is, a higher radiography effect is achieved at a low radiation dose, thereby reducing the radiation dose received by the subject.

[0038] Therefore, if Figure 3 As shown, in the vehicle-mounted X-ray radiography system designed by the present invention, in order to ensure a high radiography effect at a low radiation dose, the controller 2 corrects the received image data according to the virtual grid and generates a target image, which may specifically include the following steps: S1: Obtain a corresponding input image based on the received image data, and perform pre-correction processing on the input image; wherein the pre-correction processing process can specifically include: at least one of: dark field image correction, image gain correction and image bad pixel correction.

[0039] S2: The pre-corrected image is input into a virtual grid algorithm to be segmented into multiple thickness images of different thicknesses. The scattering intensity of each thickness image is fitted and obtained. By controlling the intensity of scatter removal, the final corrected image after scattering intensity removal is obtained.

[0040] S3: performing enhancement processing on the corrected image to generate a target image; wherein the enhancement processing may specifically include: at least one of image noise reduction, image pre-stretching, image detail contrast enhancement, and image post-stretching.

[0041] For ease of understanding, the present invention also provides supplementary explanations on the process of using the virtual grid algorithm for correction in steps S2 and S3, and post-processing and enhancing the image after virtual grid correction, to illustrate the above image processing process in detail.

[0042] In the present invention, after the pre-corrected image is input into the virtual grid algorithm, the virtual grid algorithm segments the pre-corrected image into thickness images of different thicknesses according to the segmentation threshold of the image attenuation domain, namely:

[0043] Among them, the above thr 1, thr 2 and thr 3 represent the segmentation thresholds of different thicknesses; thick 1, thick 2 and thick 3 respectively represent the thickness images segmented into different thicknesses.

[0044] Then, the convolution kernel corresponding to each thickness image is obtained according to the energy spectrum simulation data, and the scattering intensity is calculated by iterative convolution. The formula for each iteration is as follows:

[0045] Among them, the above k 1. k 2 and k 3 respectively represent thick 1, thick 2 and thick The scattering convolution kernel corresponding to the thickness image of 3.

[0046] Finally, the calculated scattering intensity is subtracted from the pre-corrected image to obtain the corrected image, namely:

[0047] in, To correct the image, is the image after pre-rectification.

[0048] It can be seen that based on the above content, virtual grid correction of image data can be completed to achieve higher radiographic effects at low radiation doses and reduce the radiation dose received by the subject.

[0049] Accordingly, in executing the above step S3, an image enhancement algorithm can be specifically used to achieve a good visual effect of the image through image denoising, dynamic linear stretching, and multi-scale image detail enhancement. The image denoising algorithm dynamically generates denoising template parameters by evaluating the similarity of pixel areas:

[0050] Among them, the above Represents the noise reduction parameter, the above Indicates the noise reduction area. The neighborhood representing the noise reduction area.

[0051] Accordingly, dynamic linear stretching is fitted with a cubic spline function from the interval [0, 65535] by the cubic spline interpolation method. S ( x i ), stretch each linear region to the corresponding brightness range:

[0052] The above interval [0, 65535] is specifically the grayscale value range of a 16-bit image. x i Indicates the initial stretched grayscale value; y i Indicates the target stretched grayscale value; for example, if a pixel with a grayscale value of 1w is stretched to 2w, then x i The value is 1w, y i The value is 2w.

[0053] Multi-scale image detail enhancement first decomposes the image into multiple scales to obtain images with different scale information. I 1. I 2. I 3…:

[0054] In summary, see Figure 4 As shown, the controller 2 in the vehicle-mounted X-ray imaging system designed by the present invention corrects the image data according to the virtual grid and then performs enhancement processing, which can generate Figure 4 The target image B shown is significantly better than the image A before processing, and can achieve higher radiographic effects at a low radiation dose.

[0055] Accordingly, see Figure 5 As shown, in the present invention, in order to further optimize the use effect of the vehicle-mounted X-ray imaging system, the controller 2 is capable of segmenting the spine in the obtained target image to divide the spine into multiple vertebrae, and calculate the maximum Cobb angle of each segmented vertebrae, and mark it in the target image. Among them, the Cobb angle is an important indicator for assessing the severity of scoliosis. Generally, the larger the angle, the more severe the scoliosis. It is measured on a full spine anteroposterior "X" ray film by selecting the vertebrae with the most inclination at both ends of the curve (i.e., the upper and lower vertebrae), and drawing parallel lines along their upper and lower end plates. The angle formed by these two lines is called the Cobb angle.

[0056] In the present invention, in actual application, the automatic segmentation measurement of the spine is to segment the entire spine through an AI segmentation model trained by a convolutional neural network. The segmentation model can segment all 17 vertebrae from the thoracic vertebrae to the lumbar vertebrae; then the two-dimensional information of each vertebra is extracted by segmentation data calculation, and the upper and lower edges of each vertebra are calculated using binarization and gradient edge detection algorithms. The inclination angle of each vertebra is calculated by the Pythagorean theorem, and the maximum and minimum angles are extracted. Finally, the maximum Cobb angle of the spine is obtained based on the maximum clockwise angle of the upper edge and the maximum counterclockwise angle of the lower edge of all vertebrae, so as to confirm whether the person being examined has scoliosis and its severity.

[0057] In addition, it should be noted that in addition to being able to calculate the maximum Cobb angle of the spine, controller 2 can also extract the center position of each vertebra based on the model segmentation data to confirm the relative position of each vertebra from the central axis, evaluate the severity of scoliosis of each vertebra, and quickly find the vertebra with the most severe scoliosis. This method can quickly and efficiently complete scoliosis screening.

[0058] For ease of understanding, the present invention further specifically adopts the following embodiment 1 to explain the vehicle-mounted X-ray imaging system constructed by the present invention: Example 1: A vehicle-mounted X-ray radiography system is built in the compartment 12 of the vehicle body 1, which includes: a controller 2, a 55kw high-voltage generator 3, an X-ray tube generator 5 with a target angle of 17.5°, a beam splitter, a flat-panel detector 4 with a format of 3072mm*8702mm, and supporting facilities.

[0059] The subject is asked to take a good position in front of the flat panel detector 4, and the exposure parameters are set in the computer software system. The exposure parameters are sent to the beam splitter through the controller 2, and the size of the window area is adjusted by the beam splitter.

[0060] The operator presses the handbrake to cause the controller 2 to send an exposure start instruction to the high-voltage generator 3. The electrons emitted by the high-voltage generator 3 bombard the target material toward the X-ray tube generator 5 to generate X-rays of corresponding intensity. At this time, the detector 4 will receive the X-rays and generate image data, so as to stop the exposure using the AEC automatic exposure cut-off system and send the generated image data to the controller 2.

[0061] Controller 2 processes the image data transmitted back and finally outputs the results after pre-correction, virtual filter grid correction, post-processing enhancement and spinal segmentation measurement, obtains the examiner's maximum Cobb angle of the spine to confirm whether the examiner has scoliosis and its severity, and marks the results on the image; in actual application, it can be selected whether to perform spinal segmentation measurement according to actual needs. Spinal segmentation measurement is only required when shooting the entire spine in the anteroposterior position, and this step is not required for other routine examinations.

[0062] In summary, the present invention designs a new vehicle-mounted X-ray radiography system, which integrates a high-voltage generator 3, a detector 4 and an X-ray tube generator 5 in the compartment 12 of the vehicle body 1, and uses a high-voltage transmitter to bombard the target material of the X-ray tube generator 5 to generate X-rays, so that the X-rays are obtained through the detector 4 and image data is generated to complete the X-ray shooting of the examinee. The vehicle-mounted X-ray radiography system can provide spinal screening and routine X-ray examination services for primary and secondary schools or areas with inconvenient medical conditions, so as to perform examinations for patients anytime and anywhere, effectively improving the efficiency and timeliness of the examination, and thus greatly improving the convenience of medical care.

[0063] Accordingly, the controller 2 of the vehicle-mounted X-ray radiography system designed in the present invention is also equipped with a virtual grid algorithm to correct the image, so as to achieve a higher radiography effect at a low radiation dose and reduce the radiation dose received by the patient.

[0064] In addition, in actual application, the above-mentioned vehicle-mounted X-ray system can also integrate a full spine segmentation measurement system in the controller 2. The full spine segmentation measurement system can quickly help adolescents achieve early preventive screening of scoliosis, improve inspection efficiency and detection accuracy.

[0065] In addition, in actual application, the above-mentioned vehicle-mounted X-ray imaging system can use a large-format flat-panel detector 4 to ensure that long bone imaging (whole spine, whole lower limb imaging) is completed through a single exposure, thereby reducing the radiation dose received by the patient. It has good promotion prospects and application value.

[0066] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A vehicle-mounted X-ray imaging system, comprising a vehicle body, characterized in that: The vehicle body includes: a controller, a high-voltage generator, a detector and an X-ray tube generator, and the controller is communicatively connected with the high-voltage generator and the detector respectively; The high-voltage transmitter is used to receive an exposure start instruction from the controller and bombard the target material with the X-ray tube generator to generate X-rays; the detector is used to receive the X-rays and generate image data, and then send the image data to the controller; the controller corrects the image data according to the virtual grid to generate a target image.

2. The vehicle-mounted X-ray imaging system according to claim 1, characterized in that: It also includes a beam splitter, which is in communication with the controller; wherein the beam splitter receives exposure parameters sent from the controller and adjusts the area size of the exposure window.

3. The vehicle-mounted X-ray imaging system according to claim 1, characterized in that: The detector is equipped with an AEC automatic exposure cut-off system. When the AEC automatic exposure cut-off system detects that the exposure requirement is met, it sends an exposure cut-off instruction to the controller and controls the high-voltage generator to stop working.

4. The vehicle-mounted X-ray imaging system according to claim 1, characterized in that: The controller corrects the image data according to the virtual grid to generate a target image, specifically: obtaining an input image based on the image data, and performing pre-correction processing on the input image; Inputting the pre-corrected image into a virtual grid algorithm to segment it into a plurality of thickness images of different thicknesses, and obtaining the scattering intensity of each of the thickness images to obtain a corrected image after removing the scattering intensity; The rectified image is enhanced to generate a target image.

5. The vehicle-mounted X-ray imaging system according to claim 4, characterized in that: The pre-correction performed on the input image includes at least one of dark field image correction, image gain correction and image bad pixel correction.

6. The vehicle-mounted X-ray imaging system according to claim 4, characterized in that: Enhancing the image after the virtual grid correction includes at least one of image noise reduction, image pre-stretching, image detail contrast enhancement, and image post-stretching.

7. The vehicle-mounted X-ray imaging system according to claim 4, characterized in that: The virtual grid algorithm divides the corrected image into thickness images of different thicknesses according to the segmentation threshold of the image attenuation domain, namely: in, thr 1, thr 2 and thr 3 represents the segmentation thresholds of different thicknesses; thick 1, thick 2 and thick 3 respectively represent the thickness images segmented into different thicknesses.

8. The vehicle-mounted X-ray imaging system according to claim 4, characterized in that: The scattering intensity of each thickness image is obtained to obtain a corrected image after removing the scattering. Specifically, the scattering convolution kernel corresponding to each thickness image is obtained according to the energy spectrum simulation data, and the scattering intensity is calculated by iterative convolution, that is: in, k 1. k 2 and k 3 respectively represent thick 1, thick 2 and thick The scattering convolution kernel corresponding to the thickness image of 3; The calculated scattering intensity is subtracted from the pre-corrected image to obtain the corrected image, that is: .

9. The vehicle-mounted X-ray imaging system according to claim 1, further comprising: The controller segments the spine in the target image to divide the spine into a plurality of vertebrae, calculates the maximum Cobb angle of each segmented vertebrae, and marks the maximum Cobb angle in the target image.

10. The vehicle-mounted X-ray imaging system according to claim 9, characterized in that: The controller correspondingly extracts the center position of each vertebra and confirms the relative position of each vertebra from the central axis to evaluate the severity of the scoliosis of each vertebra.

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