Quick response X-ray scanning device based on micro-electro-mechanical chip

Abstract

The invention relates to the technical field of scanning devices, in particular to a quick response X-ray scanning device based on a micro-electro-mechanical chip, which comprises a detection table, a photoelectric sensor is arranged in the detection table, a plurality of positioning blocks are arranged on the detection table, and a table top of the detection table is used for bearing an object to be imaged; the X-ray source is arranged above the detection table and can emit X-rays to the direction of the detection table, and the X-ray source is connected with a movable support capable of driving the X-ray source to move; the detector is connected with the detection table and can receive the X-rays penetrating through the object to be imaged and convert the X-rays into digital signals; the detection table fixes the position of an object to be imaged through the positioning block, the image acquisition module acquires an image of the detection table, and the control module adjusts the position of the X-ray source according to the position of the object to be imaged on the image so as to completely scan the object to be imaged. By accurately positioning the position of the object to be imaged and standardizing the image of the object to be imaged, the accuracy and reliability of the whole scanning process are improved, and the scanning efficiency and the imaging quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of X-ray scanning devices, and in particular to a fast-response X-ray scanning device based on a micro-electromechanical chip. Background Art

[0002] X-ray scanning devices are widely used in the fields of medical treatment, security inspection, industrial flaw detection, non-destructive testing, etc. Traditional X-ray imaging technology uses analog technology. Once the X-ray image is generated, its image quality cannot be further improved, and its information is analog, which is not convenient for image storage, management and transmission, limiting its development. Modern X-ray scanning devices are gradually developing in the direction of intelligence and convenience, with the characteristics of high-definition images and strong penetration, and can clearly display the internal structure of the scanned object.

[0003] Chinese Patent Publication No.: CN109540932A discloses an X-ray scanning device, including a housing, a base and a bracket are arranged inside the housing, a loading platform is arranged on the base, an X-ray scanner that can move up and down relative to the loading platform is arranged on the bracket, an opening is arranged on the housing, a protective door that can be opened and closed is arranged at the opening, the loading platform is rotatably mounted on a sliding plate, and the sliding plate can move horizontally relative to the housing, so that the loading platform extends out of the housing from the opening. By setting the loading platform into a structure that can move horizontally outward, and utilizing the self-rotation, it is convenient to perform X-ray scanning on different positions of the object, and by designing a concave and convex matching structure at the connecting end surface of the two protective door panels, and setting an L-shaped bending part that matches the door frame around the protective door panel, it is fully guaranteed that indoor radiation will not leak.

[0004] It can be seen that the existing technology lacks the problem of improving the accuracy and reliability of the entire scanning process, and improving the scanning efficiency and imaging quality by accurately locating the position of the object to be imaged and standardizing the image of the object to be imaged. Summary of the invention

[0005] To this end, the present invention provides a fast-response X-ray scanning device based on a micro-electromechanical chip, which is used to overcome the problem in the prior art that the position of the object to be imaged is lacking by accurately locating the position of the object to be imaged and standardizing the image of the object to be imaged, thereby improving the accuracy and reliability of the entire scanning process and improving the scanning efficiency and imaging quality.

[0006] To achieve the above object, the present invention provides a fast response X-ray scanning device based on a micro-electromechanical chip, comprising:

[0007] The detection table has a built-in photoelectric sensor and is provided with a number of positioning blocks, and its table surface is used to carry the object to be imaged;

[0008] An X-ray source is arranged above the detection table and can emit X-rays in the direction of the detection table, and the X-ray source is connected to a movable bracket capable of driving the X-ray source to move;

[0009] A detector connected to the detection platform, capable of receiving X-rays after passing through the object to be imaged and converting them into digital signals;

[0010] Image acquisition module, used to collect images of the test platform;

[0011] An image processing module, which is connected to the image acquisition module and the detector respectively, and is used to receive the digital signal transmitted by the detector and perform image reconstruction, analysis and storage;

[0012] A control module, which is connected to the X-ray source, the mobile bracket, the detector, the image acquisition module, and the image processing module respectively;

[0013] The detection platform fixes the position of the object to be imaged by a positioning block, the image acquisition module acquires an image of the detection platform, and the control module adjusts the position of the X-ray source according to the position of the object to be imaged on the image, so as to completely scan the object to be imaged;

[0014] When the photoelectric sensor detects the object to be imaged, it transmits a signal to the control module, and the control module adjusts the positioning block to move around the object to be imaged to form a positioning area, and the detection platform moves to the scanning area. The image acquisition device collects the detection platform image and uploads it to the image processing module. The image processing module connects the positioning blocks on the detection platform image in sequence with smooth curves. If the positioning figure after the connection is completed is a non-closed figure, it means that the recognition of the object to be imaged is incomplete, and the position of the object to be imaged needs to be adjusted and the image needs to be re-captured;

[0015] If the positioning pattern after connection is completed is a closed pattern, it means that the object to be imaged has been completely identified, and the position of the X-ray source can be adjusted according to the position of the positioning pattern.

[0016] Furthermore, the image processing module is provided with a positioning pattern standardization unit. When the positioning pattern is irregular, the positioning pattern standardization unit calculates the horizontal distance between the leftmost positioning block and the rightmost positioning block and the vertical distance between the topmost positioning block and the bottommost positioning block, and generates a standard rectangular positioning area according to the horizontal distance and the vertical distance.

[0017] Furthermore, the detection platform moves to the scanning area below the X-ray source according to the position of the X-ray source, and the X-ray source scans the detection platform to obtain a first scanning result. According to the first scanning result, it is determined whether to adjust the horizontal position of the X-ray source to completely scan the detection platform.

[0018] Furthermore, the control module moves the X-ray source to directly above the geometric center position according to the geometric center position of the detection table, and the X-ray source scans the detection table to obtain a first scanned image, and determines whether to adjust the height of the X-ray source to adjust the clarity of the scanned image according to the clarity of the first scanned image, wherein the first scanned image is a complete image of the detection table.

[0019] Furthermore, the image processing module determines two coordinate offset angles according to the geometric center coordinates of the standard rectangular positioning area and the geometric center coordinates of the detection platform, determines two coordinate offset amounts according to the two coordinate offset angles, and the control module adjusts the position of the X-ray source according to the offset angle and the offset amount to move it to the geometric center position of the standard rectangular positioning area, that is, the target position.

[0020] Furthermore, after the X-ray source reaches the target position, it irradiates the object to be imaged with X-rays, and the detector receives the X-rays passing through the object to be imaged, and converts the received detection data into digital signals, which are transmitted to the image processing module to obtain the image of the object to be imaged and the image size.

[0021] Furthermore, the image processing module adjusts the size of the measured image of the object to be imaged according to a ratio between a preset standard image size and a measured image size of the object to be imaged, so as to obtain an actual image of the object to be imaged that meets the standard image size.

[0022] Furthermore, the image processing module calculates the image contrast and image signal-to-noise ratio of the actual image of the object to be imaged, and compares them with the standard image contrast and standard image signal-to-noise ratio set in the image processing module, and determines whether the actual image of the object to be imaged is qualified based on the comparison results.

[0023] Furthermore, when the actual image of the object to be imaged is unqualified, the image processing module adjusts the focal size of the X-ray source so that the actual image of the object to be imaged meets the scanning requirements.

[0024] Furthermore, the image processing module is provided with a positioning pattern standardization unit. When the positioning pattern is a closed pattern, the control module adjusts the position of the X-ray source to irradiate the object to be imaged with X-rays to obtain an actual image of the object to be imaged.

[0025] Compared with the prior art, the beneficial effect of the present invention is that the detection table image collected by the image acquisition module includes the complete detection table surface and the position of the object to be imaged. The position of the positioning block on the detection table can outline the outline of the object to be imaged, which provides a basis for judging the integrity of the scan of the object to be imaged. Through the built-in photoelectric sensor and positioning block, the position of the object to be imaged can be accurately fixed to ensure the stability of the object during the imaging process and improve the imaging quality. The control module can automatically adjust the position of the X-ray source to achieve a complete scan of the object to be imaged, thereby improving the detection efficiency. By adjusting the positioning block through the control module, it can adapt to objects to be imaged of different shapes and sizes, thereby improving the applicability of the scanning device. The image processing module can accurately identify the positioning pattern and judge whether the object to be imaged has been completely identified, thereby effectively avoiding repeated scanning due to incomplete identification.

[0026] Furthermore, by calculating the horizontal and vertical distances between the positioning blocks, a standard rectangular positioning area is generated to ensure the accurate positioning of the object to be imaged on the detection table, thereby improving the accuracy of imaging. The positioning pattern standardization unit can process irregular positioning patterns, so that the image processing module can adapt to more types of shapes and sizes of objects to be imaged, and enhance the versatility of the scanning device. By establishing a three-dimensional coordinate system, a unified reference framework is provided for image processing and X-ray source positioning, simplifying the imaging process and improving operational efficiency. The standardized positioning area helps to ensure the stability of the object to be imaged during the scanning process, reduce errors in the imaging process, and improve the imaging quality. The image processing module effectively avoids imaging failures caused by improper placement of the object to be imaged by identifying non-closed positioning patterns. By quickly identifying and adjusting the positioning pattern, repeated scanning caused by inaccurate positioning is reduced, and detection efficiency is improved. By ensuring the correct placement of the object to be imaged, potential safety risks caused by incomplete imaging are reduced.

[0027] Furthermore, by judging whether the initial scanned image is complete and adjusting the position of the X-ray source accordingly, the complete scanning of the object to be imaged is ensured, thereby improving the accuracy of imaging. The entire scanning process is automated, including the initialization, position adjustment and scanning start of the X-ray source, thereby improving the detection efficiency. The use of photoelectric sensors enables real-time monitoring of the position of the object to be imaged and the movement of the detection table, thereby ensuring the accurate position of the object to be imaged during the scanning process. By generating the image of the object to be imaged in real time and quickly judging whether the position of the X-ray source needs to be adjusted, unnecessary scanning time is reduced and scanning efficiency is improved. By accurately adjusting the position of the X-ray source, the integrity of the image of the object to be imaged is ensured, thereby improving the imaging quality.

[0028] Furthermore, by moving the X-ray source to just above the geometric center of the inspection table, it is ensured that the object to be imaged is located in the center of the scanning field of view during the scanning process, thereby improving the symmetry of the scan and the imaging quality. By comparing the standard image clarity with the actual scanned image clarity, the height of the X-ray source is automatically adjusted, effectively improving the clarity of the scanned image. The setting of the standard image clarity enables the system to maintain consistent imaging quality even in different operating environments and conditions. By adjusting the height of the X-ray source, the system can adapt to objects to be imaged of different materials and thicknesses, ensuring the stability of the imaging effect. Automated clarity evaluation and height adjustment speed up the inspection process.

[0029] Furthermore, by calculating the offset angle and offset of the two coordinates, the X-ray source is precisely aligned with the geometric center of the standard rectangular positioning area, thereby improving the accuracy of imaging. By precisely controlling the position of the X-ray source, the imaging instability problem caused by alignment errors is reduced, thereby improving the stability of the system. By quickly calculating the offset of the X-ray source and adjusting it, repeated scanning caused by inaccurate alignment is reduced, thereby improving the detection efficiency. The scanning device can adapt to different detection tables and sizes of objects to be imaged, thereby increasing flexibility and adaptability. The final position parameters of the X-ray source are recorded, which is convenient for future scanning operations and maintenance. Through precise alignment, the accuracy and consistency of each scan data are ensured, providing a reliable basis for subsequent data analysis and processing.

[0030] Furthermore, by precisely controlling the irradiation of the X-ray source, combined with efficient detector reception and image reconstruction algorithms, high-quality images of the object to be imaged can be obtained. The scanning device can adjust the X-ray parameters according to the different densities and thicknesses of the objects to be imaged to meet various detection requirements. The noise removal and correction of the detector response non-uniformity in the preprocessing process improve the clarity and reliability of the image of the object to be imaged. Through filtering and back-projection algorithms, the contrast and resolution of the image of the object to be imaged are enhanced, making the details clearer. The image processing module can accurately analyze and determine the size of the image of the object to be imaged, providing important information for subsequent processing and analysis. The automated reconstruction process reduces the impact of human factors on the image quality of the object to be imaged and improves the consistency of detection. The image acquisition and reconstruction are completed quickly, the detection cycle is shortened, and work efficiency is improved.

[0031] Furthermore, it is ensured that all images of the objects to be imaged have a uniform size, which is convenient for subsequent image analysis and processing. By adjusting the size of the image of the object to be imaged, images of different objects to be imaged can be compared under the same standard, thereby improving the contrast of the images. The image of the object to be imaged is scaled using an interpolation algorithm, which effectively maintains the clarity and details of the image of the object to be imaged and reduces the image quality loss caused by size adjustment. The automated size adjustment process simplifies the image preprocessing steps and improves the efficiency of the entire image processing process. The standardized size of the image of the object to be imaged makes the image data more consistent, which is conducive to establishing more accurate detection standards and models. The scanning device can adapt to images of objects to be imaged of different sizes and has strong flexibility and adaptability. By cropping or filling operations, it is ensured that the size of the image of the object to be imaged meets the standard, which helps to optimize the use of storage space.

[0032] Furthermore, standardized contrast and signal-to-noise ratio thresholds as image quality criteria help to more accurately identify the features of the imaged object, thereby improving the accuracy of detection. The preset thresholds provide a unified evaluation standard, making the image quality assessment results of the imaged object more stable and reliable. The automated image quality assessment process speeds up detection and improves overall work efficiency. By setting clear thresholds, quality control can be easily performed to ensure that all images meet the predetermined quality standards. By promptly identifying unqualified images of the imaged object, repeated detection or misdiagnosis caused by the use of low-quality images is avoided, thereby saving time and resource costs.

[0033] Furthermore, by adjusting the size of the X-ray source focus, the problem of image blur can be solved and the clarity of the image of the object to be imaged can be improved. Automatic detection of the image clarity of the object to be imaged and adjustment of the focus realizes intelligent optimization of the focus. The scanning device can automatically adjust the focus according to different imaging requirements to adapt to objects to be imaged of different densities and thicknesses. Rapid response to unqualified images of the object to be imaged and rescanning by adjusting the focus improves the efficiency of the imaging process. Through repeated evaluation and adjustment, it is ensured that the final output image of the object to be imaged meets the preset quality standards. Accurately adjust the focus size to reduce the number of repeated scans caused by improper focus, saving time and resources. The standardized focus adjustment process ensures the consistency of image quality for each scan, which is conducive to subsequent analysis and processing. The automation of focus adjustment reduces equipment wear, extends the service life of the equipment, and reduces maintenance costs.

[0034] Furthermore, by calculating the position of the positioning pattern to adjust the X-ray source, it is ensured that the X-ray can irradiate the object to be imaged at the optimal position angle, thereby improving the accuracy of imaging. Adjusting the position of the X-ray source makes the irradiation position more appropriate, which helps to obtain higher quality imaging results. The scanning device can automatically adjust the position of the X-ray source according to different positioning patterns to adapt to a variety of different imaging scenarios. By adjusting the X-ray source to the correct position, the quality of the actual image of the object to be imaged is guaranteed, which is conducive to subsequent image analysis and diagnosis. Accurate irradiation reduces unnecessary use of X-rays and saves energy.

[0035] In summary, by accurately positioning the position of the object to be imaged and standardizing the image processing of the object to be imaged, the accuracy and reliability of the entire scanning process are improved. Accurate positioning reduces the extra time consumed by repeated position adjustment. Standardized image processing accelerates the subsequent analysis process and improves the imaging efficiency and imaging quality of the X-ray scanning device. The high-quality imaging results enable the internal structure of the object to be imaged to be presented clearly and intuitively. In addition, accurate positioning and scanning also help reduce the risk of radiation exposure caused by multiple X-ray emissions, which is also of great significance to the protection of operators and the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Schematic diagram of a fast response X-ray scanning device based on a micro-electromechanical chip in an embodiment of the present invention;

[0037] Figure 2 A schematic side view of a fast response X-ray scanning device based on a micro-electromechanical chip according to an embodiment of the present invention;

[0038] Figure 3 This is a flow chart of the operation process of a fast response X-ray scanning device based on a micro-electromechanical chip in an embodiment of the present invention;

[0039] Figure 4 The figure is a flow chart of the process of determining the clarity of a scanned image by a fast-response X-ray scanning device based on a micro-electromechanical chip in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0042] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0043] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] See also Figure 1-Figure 4 As shown, Figure 1 Schematic diagram of a fast response X-ray scanning device based on a micro-electromechanical chip in an embodiment of the present invention; Figure 2 A schematic side view of a fast response X-ray scanning device based on a micro-electromechanical chip according to an embodiment of the present invention; Figure 3 This is a flow chart of the operation process of a fast response X-ray scanning device based on a micro-electromechanical chip in an embodiment of the present invention; Figure 4 The figure is a flow chart of the process of determining the clarity of a scanned image by a fast-response X-ray scanning device based on a micro-electromechanical chip in an embodiment of the present invention.

[0045] This embodiment provides a fast response X-ray scanning device based on a micro-electromechanical chip, comprising:

[0046] The detection table 1 has a built-in photoelectric sensor and is provided with a plurality of positioning blocks 2, and its table surface is used to carry the object to be imaged;

[0047] An X-ray source 5 is arranged above the detection table and can emit X-rays in the direction of the detection table. The X-ray source is connected to a movable bracket 3 capable of driving the X-ray source to move, wherein the movable bracket includes a movable base 301, a vertical telescopic rod 302 and a horizontal telescopic rod 304 connected to a rotating shaft 303;

[0048] A detector 4, which is connected to the detection platform and can receive X-rays after passing through the object to be imaged and convert them into digital signals;

[0049] Image acquisition module, used to collect images of the test platform;

[0050] An image processing module, which is connected to the image acquisition module and the detector respectively, and is used to receive the digital signal transmitted by the detector and perform image reconstruction, analysis and storage;

[0051] A control module, which is connected to the X-ray source, the mobile bracket, the detector, the image acquisition module, and the image processing module respectively;

[0052] The detection platform fixes the position of the object to be imaged by a positioning block, the image acquisition module acquires an image of the detection platform, and the control module adjusts the position of the X-ray source according to the position of the object to be imaged on the image, so as to completely scan the object to be imaged;

[0053] When the photoelectric sensor detects the object to be imaged, it transmits a signal to the control module, and the control module adjusts the positioning block to move around the object to be imaged to form a positioning area, and the detection platform moves to the scanning area. The image acquisition device collects the detection platform image and uploads it to the image processing module. The image processing module connects the positioning blocks on the detection platform image in sequence with smooth curves. If the positioning figure after the connection is completed is a non-closed figure, it means that the recognition of the object to be imaged is incomplete, and the position of the object to be imaged needs to be adjusted and the image needs to be re-captured;

[0054] If the positioning pattern after connection is completed is a closed pattern, it means that the object to be imaged has been completely identified, and the position of the X-ray source can be adjusted according to the position of the positioning pattern.

[0055] Figure 3 The flowchart of the operation process of the fast response X-ray scanning device based on the micro-electromechanical chip in the embodiment of the present invention includes:

[0056] Step S1, the detection platform fixes the position of the object to be imaged by the positioning block, and the control module controls the detection platform to enter the scanning area;

[0057] Step S2, the image acquisition module acquires the image of the detection platform and uploads it to the image processing module;

[0058] Step S3, the image processing module determines the offset angle of the two coordinates according to the geometric center coordinates of the standard rectangular positioning area and the geometric center coordinates of the detection platform, and calculates the offset amount according to the offset angle;

[0059] Step S4, the X-ray source moves to the target position according to the offset angle and the offset amount;

[0060] Step S5, the X-ray source is started, the detector receives the X-rays passing through the object to be imaged and converts them into digital signals, the image processing unit obtains the image of the object to be imaged and the image size according to the digital signals, and adjusts the image size to obtain the actual image of the object to be imaged that meets the standard image size;

[0061] Step S6: the image processing module compares the image contrast and the image signal-to-noise ratio of the actual image of the object to be imaged to determine whether the actual image of the object to be imaged is qualified.

[0062] The image of the inspection table collected by the image acquisition module includes the complete inspection table surface and the position of the object to be imaged. The position of the positioning block on the inspection table can outline the outline of the object to be imaged, providing a basis for judging the integrity of the scan of the object to be imaged. The built-in photoelectric sensor and positioning block can accurately fix the position of the object to be imaged, ensure the stability of the object during the imaging process, and improve the imaging quality. The control module can automatically adjust the position of the X-ray source to achieve a complete scan of the object to be imaged, thereby improving the detection efficiency. By adjusting the positioning block through the control module, it can adapt to objects of different shapes and sizes to be imaged, thereby improving the applicability of the scanning device. The image processing module can accurately identify the positioning pattern and judge whether the object to be imaged has been completely identified, effectively avoiding repeated scanning due to incomplete identification.

[0063] Specifically, the image processing module is provided with a positioning pattern standardization unit. When the positioning pattern is irregular, the positioning pattern standardization unit calculates the horizontal distance between the leftmost positioning block and the rightmost positioning block and the vertical distance between the topmost positioning block and the bottommost positioning block, and generates a standard rectangular positioning area according to the horizontal distance and the vertical distance.

[0064] The image processing module takes the vertex at the lower left corner of the detection platform as the origin of the three-dimensional coordinate system, the straight line where the long side of the lower side of the detection platform is located as the X-axis, the direction is right; the straight line where the short side of the left side of the detection platform is located is the Y-axis, the direction is backward; the straight line perpendicular to the XY plane and passing through the vertex is the Z-axis, the direction is upward;

[0065] When the photoelectric sensor detects the object to be imaged, it transmits a signal to the control module, and the control module adjusts the positioning block to move around the object to be imaged to form a positioning area, and the detection platform moves to the scanning area. The image acquisition device acquires the image of the detection platform and uploads it to the image processing module. The image processing module connects the positioning blocks on the detection platform image in sequence with smooth curves. If the positioning figure after the connection is completed is a non-closed figure, it means that the object to be imaged is not completely placed on the detection platform, which will affect the integrity and accuracy of the subsequent imaging process. It is necessary to adjust the position of the object to be imaged. After the position adjustment is completed, the image acquisition module acquires the image of the adjusted detection platform.

[0066] By calculating the horizontal and vertical distances between the positioning blocks, a standard rectangular positioning area is generated to ensure the accurate positioning of the object to be imaged on the inspection table, thereby improving the accuracy of imaging. The positioning pattern standardization unit can process irregular positioning patterns, so that the image processing module can adapt to more types of shapes and sizes of objects to be imaged, enhancing the versatility of the scanning device. By establishing a three-dimensional coordinate system, a unified reference framework is provided for image processing and X-ray source positioning, simplifying the imaging process and improving operational efficiency. The standardized positioning area helps to ensure the stability of the object to be imaged during the scanning process, reduce errors in the imaging process, and improve imaging quality. The image processing module effectively avoids imaging failures caused by improper placement of the object to be imaged by identifying non-closed positioning patterns. By quickly identifying and adjusting the positioning pattern, repeated scanning caused by inaccurate positioning is reduced, improving detection efficiency. By ensuring the correct placement of the object to be imaged, potential safety risks caused by incomplete imaging are reduced.

[0067] Specifically, the detection platform moves to the scanning area below the X-ray source according to the position of the X-ray source, and the X-ray source scans the detection platform to obtain a first scanning result. According to the first scanning result, it is determined whether to adjust the horizontal position of the X-ray source to completely scan the detection platform.

[0068] Start the photoelectric sensor built into the inspection table to monitor the position of the object and the movement of the inspection table, initialize the X-ray source position, and ensure that the X-ray source is located in the initial position above the inspection table.

[0069] The control module issues a command to move the inspection platform to the scanning area directly below the X-ray source according to its position, start the X-ray source, and scan the objects on the inspection platform vertically. The detector receives the X-rays passing through the objects and converts them into digital signals. The image acquisition module records the scanning data, and the image processing module processes the scanning data to generate an initial scanning image.

[0070] If the initial scanned image is a complete image of the object to be imaged, the control module does not need to adjust the position of the X-ray source;

[0071] If the initial scanned image is an incomplete image of the object to be imaged, the image processing module determines that the horizontal position of the X-ray source needs to be adjusted based on the missing part of the image of the object to be imaged, and the control module issues an instruction to move the X-ray source a certain distance in the direction of the missing part. The image acquisition module generates the image of the object to be imaged in real time. When the image of the object to be imaged is a complete image of the object to be imaged, the control module controls the X-ray source to stop moving. After the X-ray source is adjusted into place, the X-ray source is started again to scan to obtain complete image data of the object to be imaged. The image processing module receives the new scan data and performs image reconstruction to ensure that the image of the object to be imaged is complete.

[0072] By judging whether the initial scan image is complete and adjusting the position of the X-ray source accordingly, the complete scan of the object to be imaged is ensured, and the accuracy of imaging is improved. The entire scanning process is automated, including the initialization, position adjustment and scanning start of the X-ray source, which improves the detection efficiency. The use of photoelectric sensors enables real-time monitoring of the position of the object to be imaged and the movement of the detection table, ensuring the accurate position of the object to be imaged during the scanning process. By generating the image of the object to be imaged in real time and quickly judging whether the position of the X-ray source needs to be adjusted, unnecessary scanning time is reduced and scanning efficiency is improved. By accurately adjusting the position of the X-ray source, the integrity of the image of the object to be imaged is ensured, thereby improving the imaging quality.

[0073] Specifically, the control module moves the X-ray source to directly above the geometric center position according to the geometric center position of the detection table, and the X-ray source scans the detection table to obtain a first scanned image. According to the clarity of the first scanned image, it is determined whether to adjust the height of the X-ray source to adjust the clarity of the scanned image, wherein the first scanned image is a complete image of the detection table.

[0074] The control module controls the X-ray source to move to the top of the geometric center of the detection table according to the geometric center position calculated by the preset length and width of the detection table, starts the X-ray source, and scans the detection table to obtain a first scanned image, which includes a complete image of the object to be imaged on the detection table.

[0075] The image processing module compares the standard image definition with the first scanned image definition, wherein the standard image definition is obtained based on historical data.

[0076] If the first scan image clarity is greater than or equal to the standard image clarity, the control module does not adjust the height of the X-ray source;

[0077] If the first scan image clarity is less than the standard image clarity, the control module adjusts the X-ray source height H1 = [1-(Q-Q1) / Q] × H, where Q is the standard image clarity; Q1 is the first scan image clarity; and H is the initial height of the X-ray source.

[0078] By moving the X-ray source to the geometric center of the inspection table, it is ensured that the object to be imaged is located in the center of the scanning field of view during the scanning process, which improves the symmetry of the scan and the imaging quality. By comparing the standard image clarity with the actual scanned image clarity, the height of the X-ray source is automatically adjusted, which effectively improves the clarity of the scanned image. The setting of the standard image clarity enables the system to maintain consistent imaging quality even in different operating environments and conditions. By adjusting the height of the X-ray source, the system can adapt to objects to be imaged of different materials and thicknesses, ensuring the stability of the imaging effect. Automated clarity evaluation and height adjustment speed up the inspection process.

[0079] Specifically, the image processing module determines the two coordinate offset angles according to the geometric center coordinates of the standard rectangular positioning area and the geometric center coordinates of the detection platform, determines the two coordinate offsets according to the two coordinate offset angles, and the control module adjusts the position of the X-ray source according to the offset angle and the offset to move it to the geometric center position of the standard rectangular positioning area, that is, the target position.

[0080] Use the image processing module to analyze the image of the standard rectangular positioning area, calculate and record the geometric center coordinates (X1, Y1) of the standard rectangular positioning area and the geometric center coordinates (X2, Y2) of the detection platform,

[0081] Calculate the offset angle θ between the two coordinates, θ = arctan[(Y2-Y1) / (X2-X1)],

[0082] According to the offset angle θ and the straight-line distance between the two coordinates, the image processing module calculates the horizontal and vertical offsets ΔX and ΔY of the X-ray source parallel to the XY plane, where ΔX = |X2-X1| and ΔY = |Y2-Y1|.

[0083] The control module sends a command to adjust the position of the X-ray source according to the calculated offset angle θ and the offset amounts ΔX and ΔY. The X-ray source moves ΔX in the horizontal direction parallel to the XY plane and moves ΔY in the vertical direction to align with the geometric center of the standard rectangular positioning area.

[0084] After moving the X-ray source, perform another test scan to verify that the X-ray source is positioned correctly.

[0085] If the test scan results show that the X-ray source is not yet accurately aligned, the position of the X-ray source is further fine-tuned according to the actual deviation;

[0086] If the X-ray source is accurately aligned with the geometric center of the standard rectangular positioning area, a final confirmation is performed and the position parameters of the final X-ray source are recorded for direct use in future scanning.

[0087] By calculating the offset angle and offset of the two coordinates, the X-ray source is precisely aligned with the geometric center of the standard rectangular positioning area, which improves the accuracy of imaging. By precisely controlling the position of the X-ray source, the imaging instability caused by alignment errors is reduced, and the stability of the system is improved. By quickly calculating the offset of the X-ray source and adjusting it, repeated scanning caused by inaccurate alignment is reduced, and the detection efficiency is improved. The scanning device can adapt to different detection tables and sizes of objects to be imaged, increasing flexibility and adaptability. The final position parameters of the X-ray source are recorded to facilitate future scanning operations and maintenance. Through precise alignment, the accuracy and consistency of each scan data are ensured, providing a reliable basis for subsequent data analysis and processing.

[0088] Specifically, after the X-ray source reaches the target position, it irradiates the object to be imaged with X-rays, and the detector receives the X-rays passing through the object to be imaged, and converts the received detection data into digital signals, which are transmitted to the image processing module to obtain the image of the object to be imaged and the image size.

[0089] Place the object to be imaged on the inspection table and ensure that it is fixed in position. Start the X-ray scanning device, including the X-ray source, detector and image processing module.

[0090] After the X-ray source reaches the target position, the object to be imaged is irradiated with X-rays, and the intensity and duration of the X-rays are preset according to the density and thickness of the object to be imaged.

[0091] The detector is located opposite to the X-ray source and is used to receive the X-rays that pass through the object to be imaged. The detector converts the received X-rays into electrical signals. The analog-to-digital converter built into the detector converts the analog electrical signals into digital signals, which are then transmitted to the image processing module. The image processing module uses algorithms based on the received data to reconstruct the image of the object to be imaged.

[0092] The reconstruction process includes preprocessing of the acquired projection data, including noise removal and correction of detector response inhomogeneity;

[0093] Filtering, filtering the preprocessed projection data, wherein the filtering algorithm is Radon transform or Fourier transform, which is not limited in this embodiment;

[0094] Back projection: The filtered data is converted into a two-dimensional image through a back projection algorithm. The back projection process is to redistribute the filtered projection data of each angle to the entire image plane along the ray direction; the projection data of all angles are accumulated to form a complete image.

[0095] The image processing module analyzes the reconstructed image and determines the image size, which includes the width and length of the image.

[0096] By precisely controlling the irradiation of the X-ray source, combined with efficient detector reception and image reconstruction algorithms, high-quality images of the object to be imaged can be obtained. The scanning device can adjust the X-ray parameters according to the different densities and thicknesses of the objects to be imaged to meet various detection requirements. The noise removal and correction of the detector response inhomogeneity during the preprocessing process improve the clarity and reliability of the image of the object to be imaged. Through filtering and back-projection algorithms, the contrast and resolution of the image of the object to be imaged are enhanced, making the details clearer. The image processing module can accurately analyze and determine the size of the image of the object to be imaged, providing important information for subsequent processing and analysis. The automated reconstruction process reduces the impact of human factors on the image quality of the object to be imaged and improves the consistency of detection. Quickly complete image acquisition and reconstruction, shorten the detection cycle, and improve work efficiency.

[0097] Specifically, the image processing module adjusts the size of the measured image of the object to be imaged according to a ratio between a preset standard image size and the size of the measured image of the object to be imaged, so as to obtain an actual image of the object to be imaged that meets the standard image size.

[0098] The image processing module analyzes the preliminary reconstructed image of the object to be imaged and determines its size, which is recorded as the measured image size. The length of the measured image size of the object to be imaged is Ca, and the width is Ka. The length of the standard image size is C1, and the width is K1. The width and length ratio of the image size of the object to be imaged to the standard image size is calculated.

[0099] Width ratio Mk = Ka / K1;

[0100] Length ratio Mc = Ca / C1;

[0101] The image processing module compares the width ratio and the length ratio, and selects the larger ratio as the adjustment basis;

[0102] If the width ratio is used as the adjustment basis, the adjusted length Ca1 = Ca / Mk;

[0103] If the length ratio is used as the adjustment basis, the adjusted width Ka1 = Ka / Mc;

[0104] The image processing module scales the image of the object to be imaged so that its width matches the standard image width, and scales it accordingly according to the adjusted length;

[0105] Using an interpolation algorithm to maintain the image quality of the image of the object to be imaged after the scale adjustment, the interpolation method includes bilinear interpolation or cubic spline interpolation, which is not specifically limited in this embodiment;

[0106] If the scaled image size does not exactly match the standard image size, perform necessary cropping or padding operations.

[0107] Cropping: if the image size of the object to be imaged exceeds the standard image size after scaling, the excess part is cropped;

[0108] Filling: If the image size of the object to be imaged after scaling is smaller than the standard image size, a fixed color or edge extension algorithm is used to fill it to the standard size;

[0109] The adjusted image size of the object to be imaged is compared with the standard image size to ensure that the image size of the object to be imaged completely complies with the preset standard image size.

[0110] Ensure that all images of the objects to be imaged have a uniform size to facilitate subsequent image analysis and processing. By adjusting the size of the image of the object to be imaged, images of different objects to be imaged can be compared under the same standard, which improves the contrast of the images. Use interpolation algorithms to scale the image of the object to be imaged, effectively maintaining the clarity and details of the image of the object to be imaged, and reducing the image quality loss caused by size adjustment. The automated size adjustment process simplifies the image preprocessing steps and improves the efficiency of the entire image processing process. The standardized size of the image of the object to be imaged makes the image data more consistent, which is conducive to establishing more accurate detection standards and models. The scanning device can adapt to images of objects to be imaged of different sizes and has strong flexibility and adaptability. Through cropping or filling operations, ensure that the size of the image of the object to be imaged meets the standard, which helps to optimize the use of storage space.

[0111] Specifically, the image processing module calculates the image contrast and image signal-to-noise ratio of the image of the object to be imaged, and compares them with the standard image contrast and standard image signal-to-noise ratio set in the image processing module, and determines whether the actual image of the object to be imaged is qualified based on the comparison results.

[0112] A standard image contrast threshold and a standard image signal-to-noise ratio threshold are preset in the image processing module.

[0113] Calculate the image contrast. The image processing module analyzes the actual image of the object to be imaged and calculates the image contrast. The contrast can be calculated by the following steps: determine the maximum grayscale value and the minimum grayscale value in the image; calculate the contrast.

[0114] Contrast ratio = (maximum gray value - minimum gray value) / (maximum gray value + minimum gray value).

[0115] Calculate the image signal-to-noise ratio,

[0116] The image processing module analyzes the actual image of the object to be imaged and calculates the signal-to-noise ratio of the image. The signal-to-noise ratio can be calculated by the following steps: determining the signal area and the background noise area in the image; calculating the average intensity of the signal area and the standard deviation of the background noise;

[0117] Signal-to-noise ratio = 20 × log10 (mean signal strength / noise standard deviation),

[0118] The calculated image contrast and image signal-to-noise ratio of the object to be imaged are compared with the preset standard image contrast threshold and standard image signal-to-noise ratio threshold, respectively.

[0119] If the contrast of the image of the object to be imaged is greater than or equal to the standard image contrast threshold, and the signal-to-noise ratio of the image of the object to be imaged is greater than or equal to the standard image signal-to-noise ratio threshold, then the image of the object to be imaged is judged to be qualified;

[0120] If the contrast of the image of the object to be imaged is less than the standard image contrast threshold or the signal-to-noise ratio of the image of the object to be imaged is less than the standard image signal-to-noise ratio threshold, the image of the object to be imaged is judged to be unqualified.

[0121] Standardized contrast and signal-to-noise ratio thresholds as image quality criteria help to more accurately identify the features of the imaged object, thereby improving the accuracy of detection. The preset thresholds provide a unified evaluation standard, making the image quality assessment results of the imaged object more stable and reliable. The automated image quality assessment process speeds up the inspection and improves overall work efficiency. By setting clear thresholds, quality control can be easily performed to ensure that all images meet the predetermined quality standards. By promptly identifying unqualified images of the imaged object, repeated inspections or misdiagnoses caused by the use of low-quality images are avoided, thus saving time and resource costs.

[0122] Specifically, when the image of the object to be imaged is unqualified, the image processing module adjusts the focal size of the X-ray source so that the actual image of the object to be imaged meets the scanning requirements.

[0123] If the image of the object to be imaged is unqualified, the image processing module sends instructions to the control module to adjust the focal size of the X-ray source.

[0124] If the image is blurry, you usually need to reduce the focal size to get a sharper image.

[0125] If the actual definition of the image of the object to be imaged is greater than or equal to the standard definition of the image of the object to be imaged, the control module does not need to adjust the focus of the X-ray source;

[0126] If the actual definition of the image of the object to be imaged is less than the standard definition of the image of the object to be imaged, the control module adjusts the focus of the X-ray source to be reduced, and the focus value of the adjusted X-ray source J1=[1-(RR`) / R]×J, where is the standard definition of the image of the object to be imaged; R` is the actual definition of the image of the object to be imaged; J is the initial focus value, and the initial focus value is the focus value preset according to historical data;

[0127] After adjusting the focal size of the X-ray source, the object to be imaged is rescanned, the image processing module receives the new image data, and repeats the actual clarity evaluation of the image of the object to be imaged, and again determines whether the actual clarity of the image of the object to be imaged is qualified, and uses the new image data to recalculate the image contrast and the image signal-to-noise ratio of the object to be imaged, and compares the new calculation results with the preset standard image contrast threshold and the standard image signal-to-noise ratio threshold.

[0128] If the clarity of the image of the object to be imaged after the rescanning reaches a preset standard, the image is determined to be qualified and the final image of the object to be imaged is output.

[0129] By adjusting the focal size of the X-ray source, the problem of image blur can be solved and the clarity of the image of the object to be imaged can be improved. Automatic detection of the image clarity of the object to be imaged and adjustment of the focus can realize intelligent optimization of the focus. The scanning device can automatically adjust the focus according to different imaging requirements to adapt to objects to be imaged with different densities and thicknesses. Rapid response to unqualified images of the object to be imaged and rescanning by adjusting the focus improves the efficiency of the imaging process. Through repeated evaluation and adjustment, it is ensured that the final output image of the object to be imaged meets the preset quality standards. Accurately adjust the focal size to reduce the number of repeated scans caused by improper focus, saving time and resources. The standardized focus adjustment process ensures the consistency of image quality for each scan, which is conducive to subsequent analysis and processing. The automation of focus adjustment reduces equipment wear, extends the service life of the equipment, and reduces maintenance costs.

[0130] Specifically, the image processing module is provided with a positioning pattern standardization unit. When the positioning pattern is a closed pattern, the control module adjusts the position of the X-ray source to irradiate the object to be imaged with X-rays to obtain an actual image of the object to be imaged.

[0131] The control module calculates the position parameters that need to be adjusted for the X-ray source based on the position of the positioning pattern, and sends instructions to the X-ray source to adjust its position to ensure that the X-rays can irradiate the object to be imaged at the optimal position angle.

[0132] After the X-ray source position adjustment is completed, the control module starts X-ray irradiation to scan the object to be imaged, and the image processing module receives the actual image of the object to be imaged obtained by irradiation with the adjusted X-ray source.

[0133] By calculating the position of the positioning pattern to adjust the X-ray source, it is ensured that the X-ray can irradiate the object to be imaged at the best position angle, improving the accuracy of imaging. Adjusting the position of the X-ray source makes the irradiation position more appropriate, which helps to obtain higher quality imaging results. The scanning device can automatically adjust the position of the X-ray source according to different positioning patterns to adapt to a variety of different imaging scenarios. By adjusting the X-ray source to the correct position, the quality of the actual image of the object to be imaged is guaranteed, which is conducive to subsequent image analysis and diagnosis. Accurate irradiation reduces unnecessary use of X-rays and saves energy.

[0134] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0135] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fast response X-ray scanning device based on a micro-electromechanical chip, characterized in that: include: The detection table has a built-in photoelectric sensor and is provided with a number of positioning blocks, and its table surface is used to carry the object to be imaged; An X-ray source is arranged above the detection table and can emit X-rays in the direction of the detection table, and the X-ray source is connected to a movable bracket capable of driving the X-ray source to move; A detector connected to the detection platform, capable of receiving X-rays after passing through the object to be imaged and converting them into digital signals; Image acquisition module, used to collect images of the test platform; An image processing module, which is connected to the image acquisition module and the detector respectively, and is used to receive the digital signal transmitted by the detector and perform image reconstruction, analysis and storage; A control module, which is connected to the X-ray source, the mobile bracket, the detector, the image acquisition module, and the image processing module respectively; The detection platform fixes the position of the object to be imaged by a positioning block, the image acquisition module acquires an image of the detection platform, and the control module adjusts the position of the X-ray source according to the position of the object to be imaged on the image, so as to completely scan the object to be imaged; When the photoelectric sensor detects the object to be imaged, it transmits a signal to the control module, and the control module adjusts the positioning block to move around the object to be imaged to form a positioning area, and the detection platform moves to the scanning area. The image acquisition device collects the detection platform image and uploads it to the image processing module. The image processing module connects the positioning blocks on the detection platform image in sequence with smooth curves. If the positioning figure after the connection is completed is a non-closed figure, it means that the recognition of the object to be imaged is incomplete, and the position of the object to be imaged needs to be adjusted and the image needs to be re-captured; If the positioning pattern after connection is completed is a closed pattern, it means that the object to be imaged has been completely identified, and the position of the X-ray source can be adjusted according to the position of the positioning pattern.

2. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 1, characterized in that: The image processing module is provided with a positioning pattern standardization unit. When the positioning pattern is irregular, the positioning pattern standardization unit calculates the horizontal distance between the leftmost positioning block and the rightmost positioning block and the vertical distance between the topmost positioning block and the bottommost positioning block, and generates a standard rectangular positioning area according to the horizontal distance and the vertical distance.

3. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 2, characterized in that: The detection platform moves to the scanning area below the X-ray source according to the position of the X-ray source, and the X-ray source scans the detection platform to obtain a first scanning result. According to the first scanning result, it is determined whether to adjust the horizontal position of the X-ray source to completely scan the detection platform.

4. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 3, characterized in that: The control module moves the X-ray source to directly above the geometric center position according to the geometric center position of the detection table, and the X-ray source scans the detection table to obtain a first scanned image. According to the clarity of the first scanned image, it is determined whether to adjust the height of the X-ray source to adjust the clarity of the scanned image, wherein the first scanned image is a complete image of the detection table.

5. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 4, characterized in that: The image processing module determines the two coordinate offset angles according to the geometric center coordinates of the standard rectangular positioning area and the geometric center coordinates of the detection platform, and determines the two coordinate offsets according to the two coordinate offset angles. The control module adjusts the position of the X-ray source according to the offset angle and the offset to move it to the geometric center position of the standard rectangular positioning area, that is, the target position.

6. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 5, characterized in that: After the X-ray source reaches the target position, it irradiates the object to be imaged with X-rays, and the detector receives the X-rays that pass through the object to be imaged, and converts the received detection data into digital signals, which are transmitted to the image processing module to obtain the image of the object to be imaged and the image size.

7. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 6, characterized in that: The image processing module adjusts the size of the measured image of the object to be imaged according to the ratio of the preset standard image size and the measured image size of the object to be imaged, so as to obtain an actual image of the object to be imaged that meets the standard image size.

8. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 7, characterized in that: The image processing module calculates the image contrast and image signal-to-noise ratio of the actual image of the object to be imaged, and compares them with the standard image contrast and standard image signal-to-noise ratio set in the image processing module, and determines whether the actual image of the object to be imaged is qualified based on the comparison results.

9. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 8, characterized in that: When the actual image of the object to be imaged is unqualified, the image processing module adjusts the focal size of the X-ray source so that the actual image of the object to be imaged meets the scanning requirements.

10. The fast response X-ray scanning device based on micro-electromechanical chip according to claim 9, characterized in that: The image processing module is provided with a positioning pattern standardization unit. When the positioning pattern is a closed pattern, the control module adjusts the position of the X-ray source to irradiate the object to be imaged with X-rays to obtain an actual image of the object to be imaged.

Images