Scanning image generation method, system and device and computer readable storage medium

Abstract

The invention relates to a scanning image generation method, system and device and a computer readable storage medium. The method comprises the following steps: respectively scanning different positions of a target object by changing a passing area of rays emitted from a scanning ray source to obtain a plurality of object scanning data; and obtaining an object scanning image corresponding to the target object based on the plurality of object scanning data. By adopting the method, the imaging effect of scanning the target object in the X-ray tomography can be improved, and meanwhile, the scanning length requirement can also meet the requirement.

Description

Technical Field

[0001] This application relates to the field of medical imaging technology, and in particular, to a method, system, device, and computer-readable storage medium for generating a scanned image. Background Art

[0002] With the development of computer technology, X-ray tomography has emerged, and the technology is divided into fan-beam tomography (Fan-beam CT) and cone-beam tomography (Cone-beam CT) imaging technologies. Among them, the detectors of Fan-beam CT usually have different widths in the axial direction from 1 cm to 16 cm. Therefore, in order to meet the requirements of a longer scanning length (greater than 20 cm) in some scenarios, Fan-beam CT usually completes the scan through the continuous (helical scan) or stepwise (tomographic scan) movement of the hospital bed. Cone-beam CT can use a large-size flat-panel detector, and can obtain tomographic images with a large scanning range through a scan in which the radiation source and the detector rotate one circle while the hospital bed is stationary.

[0003] However, due to problems such as the scattering problem of X-rays under a large radiation field, the acquisition rate problem of the flat-panel detector, and the signal-to-noise ratio of the flat-panel detector, the image quality of Cone-beam CT is often inferior to that of Fan-beam CT. Moreover, the scanning length requirement of Fan-beam CT fails to meet the demand, and at the same time, motion artifacts are more likely to occur in the imaging of moving objects. Therefore, the X-ray tomography of the traditional technology has a poor imaging effect on scanning the target object. In addition, Cone-beam CT needs to move the flat-panel detector and the imaging source to complete the imaging. Therefore, it has high requirements for the motion control systems and algorithms of these two, as well as the anti-collision systems and algorithms, and requires a high cost; in addition, space for the movement of the detector and the radiation source also needs to be reserved. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide a method, system, device, computer device, computer-readable storage medium, and computer program product for generating a scanned image that can improve the imaging effect of X-ray tomography on scanning the target object.

[0005] In a first aspect, this application provides a method for generating a scanned image, including:

[0006] Scanning different positions of a target object by changing the passing area of the rays emitted from a scanning radiation source to obtain a plurality of object scan data; and

[0007] Based on the plurality of object scan data, obtaining an object scan image corresponding to the target object.

[0008] In a second aspect, the present application also provides a scanning image generation system, including:

[0009] A scanning component, configured to scan different positions of a target object respectively by changing a passing area of rays emitted from a scanning ray source, so as to obtain a plurality of object scanning data; and

[0010] A computing device, configured to obtain an object scanning image corresponding to the target object based on the plurality of object scanning data.

[0011] In a third aspect, the present application also provides a scanning image generation apparatus, including:

[0012] An image scanning module, configured to scan different positions of a target object respectively by changing a passing area of rays emitted from a scanning ray source, so as to obtain a plurality of object scanning data; and

[0013] An image merging module, configured to obtain an object scanning image corresponding to the target object based on the plurality of object scanning data.

[0014] In a fourth aspect, the present application also provides a scanning image generation device, including:

[0015] A scanning ray source;

[0016] A ray collimation device, configured to scan different positions of the target object respectively by changing a passing area of rays emitted from the scanning ray source;

[0017] A detector, configured to receive the rays and obtain a plurality of object scanning data corresponding to the different positions of the target object based on the rays; and

[0018] A processor, configured to obtain an object scanning image corresponding to the target object based on the plurality of object scanning data.

[0019] In a fifth aspect, the present application also provides a radiation delivery system, characterized by including:

[0020] The scanning image generation device as described above; and

[0021] A radiation delivery device, configured to perform radiation delivery to the target object based on the object scanning image.

[0022] In a sixth aspect, the present application also provides a computer device, including a memory and a processor, where the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0023] By changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain a plurality of object scan data; and

[0024] Based on the plurality of object scan data, an object scan image corresponding to the target object is obtained.

[0025] In a seventh aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0026] By changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain a plurality of object scan data; and

[0027] Based on the plurality of object scan data, an object scan image corresponding to the target object is obtained.

[0028] In an eighth aspect, the present application further provides a computer program product, including a computer program. When the computer program is executed by a processor, the following steps are implemented:

[0029] By changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain a plurality of object scan data; and

[0030] Based on the plurality of object scan data, an object scan image corresponding to the target object is obtained.

[0031] In the above-mentioned method, system, device, equipment, computer equipment, storage medium and computer program product for generating a scan image, by changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain a plurality of object scan data; and based on the plurality of object scan data, an object scan image corresponding to the target object is obtained.

[0032] When scanning, the object and the supporting object carrying the object are in a static state. Along the starting position of the scan, a collimator with a narrower range is added at the ray source end to limit the rays axially to a small narrow slit. At the same time, only the units irradiated by the rays are enabled for acquisition by the detector. In this way, the reading speed of the detector can be improved. In this state, the gantry rotates quickly for one week to collect enough projection data for the middle of the image. Then, the collimator is moved to the next narrow slit adjacent to the starting scan position and acquisition is carried out while maintaining the same width. By using the continuous movement of the collimator and the continuous acquisition of the flat panel, the entire scan range can be covered. It can improve the imaging effect of X-ray tomography for scanning the target object, and at the same time meet the requirements for the scanning length. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for the description of the embodiments or related technologies. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is an application environment diagram of a method for generating a scanned image in an embodiment;

[0035] Figure 2 It is a schematic flowchart of a method for generating a scanned image in an embodiment;

[0036] Figure 3 It is a schematic flowchart of a method for obtaining object scan data in an embodiment;

[0037] Figure 4 It is a schematic flowchart of a method for scanning a first pair of target objects in an embodiment;

[0038] Figure 5 It is a schematic flowchart of a method for scanning a second pair of target objects in an embodiment;

[0039] Figure 6 It is a schematic flowchart of a method for scanning a third pair of target objects in an embodiment;

[0040] Figure 7 It is a schematic flowchart of a method for scanning a fourth pair of target objects in an embodiment;

[0041] Figure 8 It is a schematic flowchart of a method for scanning a fifth pair of target objects in an embodiment;

[0042] Figure 9 It is a schematic flowchart of a continuous scanning process in an embodiment;

[0043] Figure 10 It is a schematic diagram of a method for a movable collimator to change the ray passing area in an embodiment;

[0044] Figure 11 It is a schematic diagram of a method for a movable collimator array to change the ray passing area in an embodiment;

[0045] Figure 12 It is a schematic diagram of a method for a flying focal point light source to change the ray passing area in an embodiment;

[0046] Figure 13 It is a schematic diagram of a method for a light source array to change the ray passing area in an embodiment;

[0047] Figure 14 Schematic diagram of the method for changing the ray passing area by dual light sources in an embodiment;

[0048] Figure 15 Structural block diagram of a scanning image generation device in an embodiment;

[0049] Figure 16 Internal structure diagram of a computer device in an embodiment. Detailed implementation manners

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] A scanning image generation method provided by an embodiment of the present application can be applied to an application environment as shown in Figure 1 . Among them, the scanning component 102 communicates with the server 104 through a network. The data storage system can store the data that the server 104 needs to process. The data storage system can be integrated on the server 104, or placed in the cloud or other network servers. By changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain multiple object scan data; and based on the multiple object scan data, an object scan image corresponding to the target object is obtained. Among them, the server 104 can be implemented by an independent server or a server cluster composed of multiple servers.

[0052] In addition, although the description in the specification of the present disclosure mainly uses CT imaging as an example of the scanning image generation method (which can also be called the scanning imaging method) for illustration, it can be known that the content of the present disclosure can be used in other various types of scanning image generation methods, for example, DR (Digital Radiograph) imaging, magnetic resonance imaging, and so on.

[0053] In an exemplary embodiment, as shown in Figure 2 , a scanning image generation method is provided. Taking the method applied to the server in Figure 1 as an example, the method includes the following steps 202 to 204. Among them:

[0054] Step 202, by changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain multiple object scan data.

[0055] Among them, the scanning radiation source can be the part of the scanning device that emits radiation. For example, it can be the part that emits X-rays in scanning devices such as CT machines and DR machines.

[0056] Among them, the passing region can be a region through which the radiation emitted by the scanning radiation source can pass through. For example, it can be the holes or slits of the radiation collimation device. Here, the change of the passing region can include any form of change. As a non-limiting example, it can include the change of any one or more of the position, shape, and orientation of the passing region. The radiation collimation device can be a selector of the radiation direction, which is used to select the direction of the radiation that needs to be projected onto the detector. For example, through various ways such as the movement of the radiation collimation device, the opening, closing, or deformation of the holes or slits of the radiation collimation device, radiation with a specific direction, shape, or position can be selectively emitted from the radiation collimation device through the passing region and directed towards the target object.

[0057] Among them, the target object can be a person or an object being scanned by the scanning device.

[0058] Among them, the object scan data can be the scan signal obtained based on the radiation that reaches the detector after passing through the radiation collimation device, and / or the scan image reconstructed based on the scan signal, etc. At the same time, the object scan data can be a sub-image, or it can be the signal directly read from the flat panel and directly processed to obtain the final image.

[0059] Specifically, when ensuring that the scanning radiation source has sufficient flexibility, it can emit radiation in different directions and angles. By adjusting the position and angle of the radiation source, scanning of different positions of the target object can be achieved. By precisely controlling the radiation passing region, it is ensured that only the target object in a specific region is irradiated, and the scan information of the corresponding position is obtained. By repeating such scans multiple times, each time adjusting the position of the radiation source and the passing region, finally, scan sub-images of the object at different positions are obtained, realizing a comprehensive and detailed scan of the target.

[0060] In a non-limiting embodiment, considering an X-ray CT scanning device, the radiation collimation device cooperates with the scanning radiation source. When the target object is being examined, the device first places the radiation collimation device and the scanning radiation source in an initial position relationship, performs an overall scan of the target object, and obtains a whole-body CT image. Subsequently, by automatically adjusting the position relationship, that is, the system moves the radiation collimation device and the scanning radiation source to a new position and performs a scan again. This process is repeated continuously until all angles of the target object's whole body are covered. The data generated by each scan is recorded to form a three-dimensional CT image of the target object's whole body.

[0061] In another non-limiting embodiment, in the case of a nuclear magnetic resonance imaging (MRI) device, when the target object is being examined, the radiofrequency coil and the magnetic field generator are first placed in an initial positional relationship. The system starts a full-body scan of the target object, and by adjusting the intensity of the magnetic field and the direction of the radiofrequency pulses, MRI images of various parts of the whole body are obtained. Subsequently, by automatically adjusting the positional relationship, the radiofrequency coil and the magnetic field generator are moved to a new position and scanned again. This process is continuously cycled until all angles of the target object's whole body are covered. The data generated by each scan is recorded to form a three-dimensional MRI image of the target object's whole body.

[0062] Step 204: Based on multiple object scan data, obtain the object scan image corresponding to the target object.

[0063] Among them, the object scan image is the scan image obtained by the scan device after completing the scan of the target object.

[0064] As a non-limiting example, multiple object scan data can be merged to obtain the object scan image. Specifically, in the case where the object scan data is a scan image (which can also be called a sub-image), the process of merging each object scan data may include image registration and superposition. By using an image registration algorithm, each sub-image is aligned to a unified coordinate system to ensure that they are in the same spatial position. This involves feature point matching or other registration techniques. Further, for the aligned sub-images, superposition can be performed using pixel-level weighted averaging or other image synthesis methods to obtain the complete object scan image of the target object.

[0065] As another non-limiting example, multiple object scan data can be reconstructed to obtain the object scan image. Specifically, in the case where the object scan data is a scan signal, the scan signal can be processed (for example, screened, duplicate removed, denoised, etc.) to obtain the processed signal required for reconstruction, and then image reconstruction is performed based on the processed signal to obtain the complete object scan image of the target object.

[0066] As an example, the obtained object scan image can be a two-dimensional image, a three-dimensional image, a four-dimensional image, etc. In this article, the form of the object scan image is not restricted.

[0067] In one embodiment, as Figure 9As shown, under the movement of the collimating component, the X-ray source scans the object to be scanned through the hole or slit in the middle of the collimating component. Since the hole or slit of the collimating component blocks the remaining rays of the X-ray source, each time the detector can only read the scan data related to the hole or slit of the collimator. As the collimating component advances in the scanning direction, the X-ray source also scans the object to be scanned through the hole or slit in the middle of the collimating component, and merges the sub-images obtained from each scan to obtain a complete scan image of the object to be scanned.

[0068] In one embodiment, the target object remains in a fixed position during scanning, that is, during the process of the scanning component scanning the target object, the three-dimensional coordinates of the target object and the carrier carrying the target object are fixed; and the scanning component for scanning the target object is a movable component that scans the target object.

[0069] In one embodiment, the carrier carrying the target object remains stationary during scanning, and only according to the position of the received rays or according to the relative movement between the collimating device and the ray source, the receiving unit at the irradiated carrier position is enabled or the signal at the irradiated flat plate position is selected.

[0070] In one embodiment, the scanning ray source is a fan-beam computed tomography (Fan-beam CT) ray source.

[0071] In the above scanning image generation method, by changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain a plurality of object scan data; and based on the plurality of object scan data, an object scan image corresponding to the target object is obtained.

[0072] When scanning, the object and the supporting object carrying the object can be in a stationary state. Along the starting position of the scanning, a collimator with a narrower range is added at the ray source end to limit the rays axially to a small narrow slit. At the same time, the detector only enables the units irradiated by the rays to collect data, which can improve the reading speed of the detector. In this state, the gantry rotates quickly for one week to collect enough projection data for the middle of the image, and then the collimator is moved to the next narrow slit adjacent to the starting scanning position and collected while maintaining the same width. By continuously moving the collimator and continuously collecting data on the flat plate, the entire scanning range can be covered. It can improve the imaging effect of X-ray computed tomography for scanning the target object, and at the same time meet the requirements for the scanning length.

[0073] Through the settings of the above embodiments, it is possible to achieve high-precision and large-range fan-beam tomography superior to cone-beam tomography while keeping the target object stationary (and optionally, the radiation source and / or the detector are also stationary). In addition, since the radiation source and / or the detector can be kept stationary, it is possible to save equipment space, and at the same time, the electrical design, motion trajectory algorithm, etc. of the equipment can be relatively simple.

[0074] In an exemplary embodiment, a ray collimation device is provided between the scanning radiation source and the target object, and the ray collimation device is used to limit the rays of the scanning radiation source axially within a preset irradiation range. The ray collimation device can be of any type. For example, the X-ray tube side collimator of a CT, an additional collimator or a movable stop, a grating, etc. additionally installed at the ray exit port. Additionally, in the method of the above embodiment, by changing the passing area of the rays emitted from the scanning radiation source, different positions of the target object are scanned respectively to obtain a plurality of object scan data, including:

[0075] By adjusting the positional relationship between the ray collimation device and the scanning radiation source, the rays emitted by the scanning radiation source are irradiated to different positions of the target object to scan different positions of the target object and obtain a plurality of object scan data.

[0076] Among them, the positional relationship can be the relative positional relationship between the ray collimation device and the scanning radiation source. For example: position 1 of the ray collimation device corresponds to position 1 or position 2, etc. of the scanning radiation source. As Figure 9 shown, the positional relationship between the scanning radiation source and the ray collimation device changes continuously during the scanning of the target object, that is, the positional relationship indicates that the coordinate position of the ray collimation device and the coordinate position of the scanning radiation source have changed relatively.

[0077] Among them, an adjustable ray collimation device is obtained, and the adjustable ray collimation device can change the direction and collimation degree of the rays. By adjusting the relative positional relationship between the adjustable ray collimation device and the scanning radiation source, the rays of the scanning radiation source can pass through the ray collimation device and be irradiated to different positions of the target object. This involves precise mechanical adjustment or an electronic control system. Subsequently, while ensuring ray collimation, by controlling the emission direction and angle of the scanning radiation source, scanning of different positions of the target object is achieved. By jointly adjusting the positional relationship between the ray collimation device and the scanning radiation source, a plurality of object scan data covering different positions of the target object can be obtained.

[0078] In this embodiment, by adjusting the positional relationship between the ray collimation device and the scanning ray source, the scanning ray is irradiated at different positions of the target object. This flexible and precise adjustment allows the system to obtain detailed scanning information of the target object at multiple different positions, thereby improving the comprehensiveness and accuracy of the scanning. By obtaining scanning data of multiple objects, the structure and characteristics of the target object can be more comprehensively understood, providing richer data support for accurate analysis and application, and helping to improve the diagnostic accuracy and quality control effect in the fields of medical imaging, industrial inspection, etc. This method of adjusting the positional relationship brings greater flexibility and information acquisition ability to the application of scanning technology, enhancing the overall effect.

[0079] In an exemplary embodiment, as Figure 3 shown, by adjusting the positional relationship between the ray collimation device and the scanning ray source, the ray emitted by the scanning ray source is irradiated at different positions of the target object to scan different positions of the target object and obtain multiple object scanning data, including steps 302 to 306. Among them:

[0080] Step 302, scan the target object when the ray collimation device and the scanning ray source are in the initial positional relationship.

[0081] Among them, the initial positional relationship can be the first positional relationship between the ray collimation device and the scanning ray source, that is, the positional relationship used for the first scan.

[0082] Specifically, ensure that the ray collimation device and the scanning ray source are in a predetermined initial positional relationship, which requires an accurate positioning system or calibration process. Start the scanning ray source to emit rays, and the ray collimation device ensures the direction and collimation of the rays. After the rays irradiate the target object, by detecting and recording the information of the interaction between the rays and the target object, such as reflection, absorption, etc., the scanning data at the initial position is obtained. This process may involve the use of detectors or sensors to capture the interaction between the rays and the target object. Finally, by processing and reconstructing the acquired data, the scanning result of the target object at the initial position is obtained, forming the corresponding object scanning data.

[0083] Step 304, adjust the initial positional relationship to the next positional relationship and scan the target object in the next positional relationship.

[0084] Among them, the next positional relationship can be the new relative positional relationship between the ray collimation device and the scanning ray source obtained after adjusting the relative positional relationship between the ray collimation device and the scanning ray source.

[0085] Specifically, an adjustable mechanism is used to change the relative position between the ray collimation device and the scanning ray source, which may include a mechanical movement system or an electronic control system, to ensure accurate and repeatable position adjustment. Once the relative position relationship between the ray collimation device and the scanning ray source is adjusted to the next position relationship, the scanning ray source is activated to ensure that the ray collimation device is aligned with the new position of the target object. A scanning process similar to that at the initial position is carried out, and by recording the interaction information between the ray and the target object, the scanning data at the new position is obtained. Finally, the acquired data is processed and reconstructed to generate the scanning result of the target object in the next position relationship, forming the corresponding object scanning data. By repeatedly executing this process, the object scanning data at multiple positions can be obtained to achieve a comprehensive scan of the target object.

[0086] Step 306: Take the next position relationship as the new initial position relationship, and return to the step of adjusting the initial position relationship to the next position relationship and scanning the target object in the next position relationship until the scanning of the target object is completed, and the object scanning data corresponding to each position relationship is obtained.

[0087] Specifically, after completing the scanning of the next position relationship, the acquired object scanning data is recorded and saved. Subsequently, the next position relationship is set as the new initial position relationship, and the adjustment mechanism is cyclically executed to move the position relationship between the ray collimation device and the scanning ray source from the initial position relationship to the next position relationship (i.e., from the next position relationship to the next-next position relationship). Subsequently, in the scanning step, data is collected and processed to obtain the object scanning data in the new position relationship. This process is repeated until the scanning of the target object is completed, and finally the object scanning data corresponding to each position relationship is obtained. The object scanning data corresponding to each position relationship is merged according to a preset rule, and then a comprehensive scan of the target object is performed to obtain the image corresponding to the comprehensive scan.

[0088] In this embodiment, by scanning the target object in the initial position relationship, and then gradually scanning different parts of the object by adjusting the position relationship, finally the object scanning data corresponding to each position relationship can be obtained, and comprehensive and detailed information of the target object can be obtained. This step-by-step iterative scanning method ensures that sufficient attention is paid to each position, improving the comprehensiveness and accuracy of the scanning. By taking the position relationship after each adjustment as the new initial relationship, a seamless and coherent scanning process is achieved, ensuring the consistency of the scanning data. This strategy not only helps to accurately restore the structure of the target object, but also provides a richer basis for subsequent data processing, analysis and diagnosis, thus improving the scanning effect and application feasibility in the fields of medical imaging, industrial inspection, etc.

[0089] In an exemplary embodiment, such asFigure 4 As shown, the ray collimation device includes a movable collimator. Adjusting the initial position relationship to the next position relationship and scanning the target object in the next position relationship includes steps 402 to 406. Among them:

[0090] Step 402, determining the moving direction of the movable collimator according to the scanning direction of the target object.

[0091] Among them, the scanning direction can be the direction in which the scanning device scans the target object, and this direction is defined when the scanning starts.

[0092] Specifically, analyze the geometric structure and scanning requirements of the target object to obtain an association algorithm or association rule, and associate the scanning direction of the target object with the moving direction of the movable collimator, which involves mathematical models, geometric calculations or machine learning methods. When the direction relationship is established, by monitoring the scanning direction of the target object in real time, the system can accordingly adjust the moving direction of the movable collimator to ensure that the rays can effectively cover different regions of the target object.

[0093] Step 404, moving the movable collimator a first preset distance in the moving direction to adjust the initial position relationship to the next position relationship.

[0094] Among them, the movable collimator can be a collimator for which the ray collimation device is movable.

[0095] Among them, the first preset distance can be the distance that the movable collimator moves each time.

[0096] Specifically, by controlling the mechanical system or electronic system of the movable collimator, the movable collimator is moved a first preset distance in the required moving direction. This requires a real-time monitoring and feedback mechanism to ensure an accurate moving distance. When the movement is completed, the position relationship between the ray collimation device and the scanning ray source is adjusted from the initial position relationship to the next position relationship.

[0097] Step 406, scanning the target object in the next position relationship.

[0098] Specifically, ensure that the movable collimator and the scanning radiation source have been adjusted to a new positional relationship. Start the scanning radiation source to emit radiation, and the movable collimator ensures the direction and collimation of the radiation. After the radiation irradiates the target object, by detecting and recording information on the interaction between the radiation and the target object, such as reflection, absorption, etc., scanning data in the new positional relationship is obtained, which involves the use of detectors or sensors. By processing and reconstructing the acquired data, a scanning result of the target object in the next positional relationship is generated, forming corresponding object scanning data. After the scanning is completed, set the current next positional relationship as the new initial positional relationship to prepare for the next round of scanning. This process is executed cyclically until the scanning of the target object is completed, and object scanning data corresponding to each positional relationship is obtained. As Figure 10 shown, when the movable collimator moves in the scanning direction, the scanning radiation source completes a comprehensive scan of the scanned object through the empty space or gap of the movable collimator.

[0099] In this embodiment, by determining the moving direction of the movable collimator according to the scanning direction of the target object, the system can achieve a more intelligent and targeted scan. Moving the movable collimator a first preset distance in the moving direction can effectively adjust the scanning focus to ensure that the radiation can accurately irradiate different positions of the target object. Such precise adjustment can improve the positioning accuracy and scanning quality of the scan. Scanning the target object in the next positional relationship to fully cover the adjusted area, thereby obtaining more comprehensive and detailed scanning data. The optimization of this step helps to improve the scanning efficiency, reduce unnecessary repeated scans, and at the same time ensure the acquisition of high-quality scanning images of the target object.

[0100] In an exemplary embodiment, as Figure 5 shown, the ray collimation device in step A further includes a movable collimation array; adjusting the scanning radiation source and / or the ray collimation device to the next positional relationship of the initial positional relationship and scanning the target object includes steps 502 to 506. Among them:

[0101] Step 502, determining the first moving direction or the second moving direction of the movable collimation array according to the number of scans of the target object; the first moving direction is opposite to the second moving direction.

[0102] Among them, the movable collimation array can be a movable collimation grating.

[0103] Specifically, the first moving direction or the second moving direction of the movable collimator array is determined according to the number of scans of the target object, and the relationship between the number of scans and the moving direction needs to be defined. By presetting rules or algorithms, according to the scanning requirements and the geometric structure of the target object, it is determined when the array should be moved along the first moving direction or the second moving direction, which needs to consider factors such as the optimal scanning path and coverage rate. Then, according to the actual number of scans and the set rules, the system can automatically select the appropriate moving direction to ensure that all areas of the target object are covered during the entire scanning process. This process can be implemented through programming to achieve an automated system that dynamically adjusts the moving direction according to the number of scans.

[0104] Step 504, move the movable collimator array a second preset distance along the first moving direction or the second moving direction to adjust the initial position relationship to the next position relationship.

[0105] Wherein, the second preset distance can be the distance that the movable collimator array moves each time.

[0106] Specifically, in the case where it is already clear whether the currently selected moving direction is the first moving direction or the second moving direction, by controlling the mechanical system or electronic system of the movable collimator array, ensure that it moves a second preset distance in the selected moving direction. This may require real-time monitoring and feedback mechanisms to ensure the accurate moving distance. After the movement is completed, the position relationship between the ray collimation device and the scanning ray source is adjusted from the initial position relationship to the next position relationship.

[0107] Step 506, scan the target object in the next position relationship.

[0108] Specifically, ensure that the movable collimator array and the scanning ray source have been adjusted to the new position relationship, start the scanning ray source to emit rays, and the movable collimator array ensures the direction and collimation of the rays. After the rays irradiate the target object, by detecting and recording the information of the interaction between the rays and the target object, such as reflection and absorption, etc., the scanning data in the new position relationship is obtained, which involves the use of detectors or sensors. By processing and reconstructing the obtained data, the scanning result of the target object in the next position relationship is generated, forming the corresponding object scanning data. After the scanning is completed, set the current next position relationship as the new initial position relationship to prepare for the next round of scanning. This process is executed cyclically until the scanning of the target object is completed, and the object scanning data corresponding to each position relationship is obtained. As Figure 11 shown, when the movable collimator array moves in the first moving direction or the second moving direction, the scanning ray source completes the comprehensive scanning of the scanned object through the holes or gaps of the movable collimator.

[0109] In this embodiment, by determining the first moving direction or the second moving direction of the movable collimation array according to the number of scans of the target object, the system can implement a targeted scanning strategy. The first moving direction is opposite to the second moving direction, enabling scans in different directions to complement each other and cover more of the target object's surface. The movable collimation array is moved a second preset distance in the first or second moving direction to adjust the positional relationship, and then the target object is scanned in the next positional relationship. This multi-directional movement and adjustment strategy effectively improves the scanning coverage and comprehensiveness, facilitating the capture of detailed information about the target object from all directions. Such a scanning method can optimize image reconstruction and analysis, enhancing the three-dimensional sense and accuracy of the data.

[0110] In an exemplary embodiment, as Figure 6 shown, the scanning radiation source includes a flying focal point light source; adjusting the scanning radiation source and / or the radiation collimation device to the next positional relationship from the initial positional relationship and scanning the target object includes steps 602 to 606. Among them:

[0111] Step 602, determining the third moving direction or the fourth moving direction of the flying focal point light source according to the number of scans of the target object; the third moving direction is opposite to the fourth moving direction.

[0112] Among them, the flying focal point light source can be a light source with a focal point that rapidly changes between two different target surface positions.

[0113] Specifically, to determine the third moving direction or the fourth moving direction of the flying focal point light source according to the number of scans of the target object, the relationship between the number of scans and the moving direction needs to be defined. By presetting rules or algorithms, according to the scanning requirements and the geometric structure of the target object, it is determined when the array should be moved in the third moving direction or the fourth moving direction, taking into account factors such as the optimal scanning path and coverage rate. Then, based on the actual number of scans and the set rules, the system can automatically select the appropriate moving direction to ensure that all areas of the target object are covered during the entire scanning process. This process can be implemented through programming to achieve an automated system that dynamically adjusts the moving direction according to the number of scans.

[0114] Step 604, moving the flying focal point light source a third preset distance in the third moving direction or the fourth moving direction to adjust the initial positional relationship to the next positional relationship.

[0115] Among them, the third preset distance can be the distance that the flying focal point light source moves each time.

[0116] Specifically, when it has been determined whether the currently selected moving direction is the third moving direction or the fourth moving direction, the mechanical or electronic system controlling the flying focal point light source is used to ensure that it moves a third preset distance in the selected moving direction. This may require real-time monitoring and feedback mechanisms to ensure the accurate moving distance. After the movement is completed, the positional relationship between the ray collimation device and the scanning ray source is adjusted from the initial positional relationship to the next positional relationship.

[0117] Step 606, scan the target object in the next positional relationship.

[0118] Specifically, ensure that the flying focal point light source and the scanning ray source have been adjusted to the new positional relationship, start the scanning ray source to emit rays, and the flying focal point light source ensures the direction and collimation of the rays. After the rays irradiate the target object, by detecting and recording the information of the interaction between the rays and the target object, such as reflection, absorption, etc., scan data in the new positional relationship is obtained, which involves the use of detectors or sensors. By processing and reconstructing the obtained data, a scan result of the target object in the next positional relationship is generated, forming corresponding object scan data. After the scanning is completed, the current next positional relationship is set as the new initial positional relationship to prepare for the next round of scanning. This process is executed cyclically until the scanning of the target object is completed, and object scan data corresponding to each positional relationship is obtained. As Figure 12 shown, when the flying focal point light source moves in the third moving direction or the fourth moving direction, the scanning ray source completes a comprehensive scan of the scanned object through the aperture or slit of the movable collimator.

[0119] In this embodiment, by determining the third moving direction or the fourth moving direction of the flying focal point light source according to the number of scans of the target object, the system can implement a more intelligent and customized light source moving strategy. The third moving direction and the fourth moving direction are opposite to each other, so that the irradiations in different directions can be complementary, improving the comprehensiveness of the light source irradiation. Moving the flying focal point light source a third preset distance in the third or fourth moving direction to adjust the positional relationship, so as to scan the target object in the next positional relationship. Such a light source moving strategy can optimize the irradiation angle and obtain scan data with more three-dimensional sense and rich details, which helps to improve the image quality and resolution.

[0120] In an exemplary embodiment, as Figure 7 shown, the scanning ray source includes a light source array; adjusting the scanning ray source and / or the ray collimation device to the next positional relationship of the initial positional relationship and scanning the target object includes steps 702 to 706. Among them:

[0121] Step 702, determine the switching direction of the flashing light sources of the light source array according to the scanning direction of the target object.

[0122] Among them, the light source array can be an array composed of multiple light sources.

[0123] Specifically, to determine the switching direction of the flashing light sources in the light source array according to the scanning direction of the target object, it is necessary to understand the relationship between the scanning direction and the light source switching direction. By analyzing the geometric structure and scanning requirements of the target object, using a flashing light source switching algorithm or flashing light source switching rules, the scanning direction of the target object is associated with the light source switching direction. This involves mathematical models, geometric calculations, or machine learning methods. In the case where the direction relationship is established, by real-time monitoring the scanning direction of the target object, the system can accordingly adjust the switching direction of the flashing light sources in the light source array to ensure that the change of the light source can effectively cooperate with the scanning. This process requires real-time feedback and dynamic adjustment to ensure the timeliness and effectiveness of the light source switching in different scanning directions.

[0124] Step 704, switch the current flashing light source to the next flashing light source in the adjustment direction, so as to adjust the initial position relationship to the next position relationship.

[0125] Specifically, in the case of clearly defining the mechanism of the adjustment direction, by controlling the electronic or mechanical system in the light source array, ensure that the current flashing light source is switched to the next flashing light source in the selected adjustment direction, which requires real-time monitoring and feedback mechanisms to ensure accurate light source switching. When the switching is completed, the position relationship between the ray collimation device and the moving scanning ray source is adjusted from the initial position relationship to the next position relationship.

[0126] Step 706, scan the target object in the next position relationship.

[0127] Specifically, ensure that the light source array and the scanning ray source have been adjusted to the new position relationship, start the scanning ray source to emit rays, and the light source array ensures the direction and collimation of the rays. After the rays irradiate the target object, by detecting and recording the information of the interaction between the rays and the target object, such as reflection, absorption, etc., obtain the scanning data in the new position relationship, which involves the use of detectors or sensors. By processing and reconstructing the obtained data, generate the scanning result of the target object in the next position relationship, forming the corresponding object scanning data. After the scanning is completed, set the current next position relationship as the new initial position relationship to prepare for the next round of scanning. This process is executed cyclically until the scanning of the target object is completed, and the object scanning data corresponding to each position relationship is obtained. As Figure 13 shown, in the case where the light source array switches the current flashing light source to the next flashing light source in the adjustment direction, the scanning ray source completes the comprehensive scanning of the scanned object through the hole or gap of the movable collimator.

[0128] In this embodiment, by determining the switching direction of the flashing light sources of the light source array according to the scanning direction of the target object, the system can implement a more intelligent and directional light source switching strategy, switching the current flashing light source to the next one in the adjustment direction, so that the change of the light source during the scanning process can effectively cooperate with the scanning. Such a strategy helps to improve the ray illumination quality of different regions of the target object, and optimize the image contrast and clarity. Scan the target object in the next positional relationship to ensure sufficient ray illumination and a clearer scanned image. This intelligent light source switching method can adapt to the requirements of different scanning scenarios, improving the scanning effect and data quality in fields such as medical imaging and industrial inspection.

[0129] In an exemplary embodiment, as Figure 8 shown, the scanning ray source includes a dual light source; adjusting the scanning ray source and / or the ray collimating device to the next positional relationship of the initial positional relationship, and scanning the target object includes steps 802 to 804. Among them:

[0130] Step 802, switch the dual light source to the first light source or the second light source according to the number of scans of the target object, so that the initial positional relationship is adjusted to the next positional relationship.

[0131] Among them, the dual light source can be a scanning ray source with two ray light sources.

[0132] Specifically, in the case of defining the relationship between the number of scans and the light source switching, through a preset dual light source switching rule or dual light source switching algorithm, considering the geometric structure and scanning requirements of the target object, determine when to switch to the first light source or the second light source. According to the actual number of scans and the set rules, the system can automatically select the appropriate light source to ensure effective cooperation during the entire scanning process. Through an electronic or mechanical system that controls the dual light source, realize the switching between the selected light sources. When the switching is completed, that is, the positional relationship between the ray collimating device and the scanning ray source moving is adjusted from the initial positional relationship to the next positional relationship.

[0133] Step 804, scan the target object in the next positional relationship.

[0134] Specifically, ensure that the dual light source and the scanning radiation source have been adjusted to the new positional relationship. Start the scanning radiation source to emit radiation, and the dual light source ensures the direction and collimation of the radiation. After the radiation irradiates the target object, by detecting and recording the information of the interaction between the radiation and the target object, such as reflection and absorption, etc., the scanning data under the new positional relationship is obtained, which involves the use of detectors or sensors. By processing and reconstructing the obtained data, the scanning result of the target object under the next positional relationship is generated, forming the corresponding object scanning data. After the scanning is completed, set the current next positional relationship as the new initial positional relationship to prepare for the next round of scanning. This process is executed cyclically until the scanning of the target object is completed, and the object scanning data corresponding to each positional relationship is obtained. As Figure 14 shown, when the dual light source is switched to the first light source or the second light source according to the number of scanning times, the scanning radiation source completes the comprehensive scanning of the scanned object through the empty space or gap of the movable collimator.

[0135] In this embodiment, by switching the dual light source to the first light source or the second light source according to the number of scans of the target object, the system can select a suitable light source according to specific scanning requirements, thereby realizing a more flexible and intelligent ray illumination strategy. The first light source and the second light source are mutually exclusive light sources, ensuring that only one light source works at the same time and preventing interference between ray light sources. By scanning the target object under the next positional relationship and utilizing the characteristics of different light sources, more comprehensive and multi-angle information of the target object can be obtained. This way of dynamically switching the light source improves the system's ability to adapt to different scanning scenarios.

[0136] It should be understood that although the steps in the flowcharts involved in the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least a part of other steps or steps or stages in other steps.

[0137] Based on the same inventive concept, an embodiment of the present application further provides a scanning image generation device for implementing the scanning image generation method involved above. The solution provided by this device to solve the problem is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the scanning image generation device provided below can refer to the limitations on a scanning image generation method in the above text, and will not be repeated here.

[0138] In an exemplary embodiment, as Figure 15 shown, a scanning image generation device is provided, including: an image scanning module 1502 and an image merging module 1504, where:

[0139] The image scanning module 1502 is configured to scan different positions of a target object respectively by changing the passing area of the rays emitted from a scanning ray source, and obtain a plurality of object scanning data; and

[0140] The image merging module 1504 is configured to obtain an object scanning image corresponding to the target object based on the plurality of object scanning data.

[0141] In one embodiment, the image scanning module 1502 is further configured to irradiate the rays emitted from the scanning ray source to different positions of the target object by adjusting the positional relationship between the ray collimating device and the scanning ray source, so as to scan different positions of the target object and obtain a plurality of object scanning data.

[0142] In one embodiment, the image scanning module 1502 is further configured to scan the target object when the ray collimating device and the scanning ray source are in an initial positional relationship; adjust the initial positional relationship to the next positional relationship, and scan the target object in the next positional relationship; take the next positional relationship as the new initial positional relationship, and return to the step of adjusting the initial positional relationship to the next positional relationship and scanning the target object in the next positional relationship until the scanning of the target object is completed, and obtain the object scanning data corresponding to each positional relationship.

[0143] In one embodiment, the image scanning module 1502 is further configured to determine the moving direction of a movable collimator according to the scanning direction of the target object; move the movable collimator a first preset distance in the moving direction to adjust the initial positional relationship to the next positional relationship; and scan the target object in the next positional relationship.

[0144] In one embodiment, the image scanning module 1502 is further configured to determine a first moving direction or a second moving direction of the movable collimator array according to the number of scans of the target object; the first moving direction is opposite to the second moving direction; move the movable collimator array a second preset distance in the first moving direction or the second moving direction to adjust the initial positional relationship to the next positional relationship; and scan the target object in the next positional relationship.

[0145] In one embodiment, the image scanning module 1502 is further configured to determine a third moving direction or a fourth moving direction of the flying focus light source according to the number of scans of the target object; the third moving direction is opposite to the fourth moving direction; move the flying focus light source a third preset distance in the third moving direction or the fourth moving direction to adjust the initial positional relationship to the next positional relationship; and scan the target object in the next positional relationship.

[0146] In one embodiment, the image scanning module 1502 is further configured to determine a switching direction of the flashing light source of the light source array according to the scanning direction of the target object; switch the current flashing light source to the next flashing light source in the adjustment direction to adjust the initial positional relationship to the next positional relationship; and scan the target object in the next positional relationship.

[0147] In one embodiment, the image scanning module 1502 is further configured to switch the dual light source to the first light source or the second light source according to the number of scans of the target object to adjust the initial positional relationship to the next positional relationship; the first light source and the second light source are mutually exclusive light sources; and scan the target object in the next positional relationship.

[0148] Each module in the above-mentioned scanning image generation device can be implemented in whole or in part by software, hardware, and their combination. The above-mentioned modules can be embedded in the processor of the computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above-mentioned modules.

[0149] In an exemplary embodiment, a scanning image generation system is provided, including:

[0150] A scanning component for scanning different positions of a target object by changing the passing area of the rays emitted from a scanning ray source to obtain a plurality of object scan data; and

[0151] A computing device for obtaining an object scan image corresponding to the target object based on the plurality of object scan data.

[0152] In an exemplary embodiment, a scanning image generation device is provided, including:

[0153] Scanning radiation source;

[0154] A ray collimation device for scanning different positions of a target object by the rays respectively by changing the passing area of the rays emitted from the scanning radiation source;

[0155] A detector for receiving the rays and obtaining a plurality of object scan data corresponding to different positions of the target object based on the rays; and

[0156] A processor for obtaining an object scan image corresponding to the target object based on the plurality of object scan data.

[0157] In an exemplary embodiment, a radiation delivery system is provided, including:

[0158] The scanning image generation device as described in the above embodiments; and

[0159] A radiation delivery device that performs radiation delivery to the target object based on the object scan image.

[0160] As an example, radiation delivery can include, for example, radiotherapy, radiation processing, etc.

[0161] As an example, performing radiation delivery to the target object based on the object scan image may include: planning (such as determining the desired radiation dose, desired radiation position, etc. by a human or a computing device based on the object scan image) and performing radiation delivery based on the object scan image obtained before or during the radiation delivery.

[0162] Due to the various beneficial effects of the scanning image generation device of the present application described above, the position of the target object can be kept unchanged during scanning image generation and radiation delivery. Therefore, there will be no deviation between the actual position of the radiation delivery caused by movement and the position planned based on the image, and no additional motion control device or motion control algorithm is required to ensure the consistency of the radiation delivery position and the imaging position. And since there is no need to move, it can also be ensured that the target object does not collide with the radiation delivery device and the scanning image generation device.

[0163] In an exemplary embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as Figure 16As shown in the figure. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O), and a communication interface. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store server data. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals through a network connection. When the computer program is executed by the processor, it implements a method for generating a scanned image.

[0164] Those skilled in the art can understand that Figure 16 the structure shown in the figure is only a block diagram of some structures related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0165] In one embodiment, a computer device is further provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the steps in the above method embodiments are implemented.

[0166] In one embodiment, a computer-readable storage medium is provided, storing a computer program. When the computer program is executed by the processor, the steps in the above method embodiments are implemented.

[0167] In one embodiment, a computer program product or a computer program is provided. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the steps in the above method embodiments.

[0168] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or fully authorized by all parties, and the collection, use, and processing of relevant data need to comply with relevant regulations.

[0169] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memories can include read-only memory (ROM), magnetic tapes, floppy disks, flash memories, optical memories, high-density embedded non-volatile memories, resistive random access memories (ReRAM), magnetoresistive random access memories (MRAM), ferroelectric random access memories (FRAM), phase change memories (PCM), graphene memories, etc. Volatile memories can include random access memory (RAM) or external cache memories, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0170] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0171] The above-described embodiments merely represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A method for generating a scanned image, characterized in that, Including: By changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain a plurality of object scan data; And Based on the plurality of object scan data, an object scan image corresponding to the target object is obtained.

2. The method for generating a scanned image according to claim 1, characterized in that, The detector for receiving the rays remains in a fixed position during scanning.

3. The method for generating a scanned image according to claim 1, characterized in that, The target object remains in a fixed position during scanning.

4. The method for generating a scanned image as claimed in claim 1, characterized in that, The scanning ray source is a fan-beam tomography ray source.

5. The method for generating a scanned image according to claim 1, characterized in that, A ray collimation device is provided between the scanning ray source and the target object. The ray collimation device is used to axially limit the rays of the scanning ray source within a preset irradiation range. By changing the passing area of the rays emitted from the scanning ray source, different positions of the target object are scanned respectively to obtain a plurality of object scan data, including: By adjusting the positional relationship between the ray collimation device and the scanning ray source, the rays emitted by the scanning ray source are irradiated onto different positions of the target object, so as to scan different positions of the target object and obtain the plurality of object scan data.

6. The method for generating a scanned image according to claim 5, characterized in that, The step of adjusting the positional relationship between the ray collimation device and the scanning ray source to make the rays emitted by the scanning ray source irradiate onto different positions of the target object, so as to scan different positions of the target object and obtain the plurality of object scan data, includes: Scanning the target object when the ray collimation device and the scanning ray source are in an initial positional relationship; Adjusting the initial positional relationship to the next positional relationship and scanning the target object in the next positional relationship; and Taking the next positional relationship as the new initial positional relationship, and returning to the step of adjusting the initial positional relationship to the next positional relationship and scanning the target object in the next positional relationship until the scanning of the target object is completed to obtain the object scan data corresponding to each positional relationship.

7. The method for generating a scanned image according to claim 6, characterized in that, The ray collimation device includes a movable collimator. The step of adjusting the initial positional relationship to the next positional relationship and scanning the target object in the next positional relationship includes: Determining the moving direction of the movable collimator according to the scanning direction of the target object; Moving the movable collimator a first preset distance in the moving direction to adjust the initial positional relationship to the next positional relationship; and Scanning the target object in the next positional relationship.

8. The method for generating a scanned image according to claim 6, characterized in that, The ray collimation device further includes a movable collimation array. The step of adjusting the scanning ray source and / or the ray collimation device to the next positional relationship of the initial positional relationship and scanning the target object includes: Determining a first moving direction or a second moving direction of the movable collimation array according to the number of scans of the target object; the first moving direction is opposite to the second moving direction; Moving the movable collimation array a second preset distance in the first moving direction or the second moving direction to adjust the initial positional relationship to the next positional relationship; and Scanning the target object in the next positional relationship.

9. The method for generating a scanned image according to claim 6, characterized in that, The scanning radiation source includes a flying focal point light source; adjusting the scanning radiation source and / or the ray collimation device to the next positional relationship of the initial positional relationship and scanning the target object includes:[[]] Determining a third moving direction or a fourth moving direction of the flying focal point light source according to the number of scans of the target object; the third moving direction is opposite to the fourth moving direction; Moving the flying focal point light source a third preset distance in the third moving direction or the fourth moving direction to adjust the initial positional relationship to the next positional relationship; and Scanning the target object in the next positional relationship.

10. The method for generating a scanned image according to claim 6, characterized in that, The scanning radiation source includes a light source array; adjusting the scanning radiation source and / or the ray collimation device to the next positional relationship of the initial positional relationship and scanning the target object includes:[[]] Determining the switching direction of the flashing light source of the light source array according to the scanning direction of the target object; Switching the current flashing light source to the next flashing light source in the adjustment direction to adjust the initial positional relationship to the next positional relationship; and Scanning the target object in the next positional relationship.

11. The scanning image generation method according to claim 6, wherein The scanning radiation source includes a dual light source; adjusting the scanning radiation source and / or the ray collimation device to the next positional relationship of the initial positional relationship and scanning the target object includes:[[]] Switching the dual light source to a first light source or a second light source according to the number of scans of the target object to adjust the initial positional relationship to the next positional relationship; Scanning the target object in the next positional relationship.

12. A scanning image generation system, wherein Comprising: A scanning component for scanning different positions of a target object by changing the passing area of rays emitted from a scanning radiation source to obtain a plurality of object scan data; And A computing device for obtaining an object scan image corresponding to the target object based on the plurality of object scan data.

13. A scanning image generation device, wherein Comprising: A scanning radiation source; A ray collimation device for changing the passing area of rays emitted from the scanning radiation source so that the rays scan different positions of the target object respectively; A detector for receiving the rays and obtaining a plurality of object scan data corresponding to the different positions of the target object based on the rays; And A processor for obtaining an object scan image corresponding to the target object based on the plurality of object scan data.

14. A radiation delivery system, wherein Comprising: The scanning image generation device according to claim 13; And A radiation delivery device that performs radiation delivery to the target object based on the object scan image.

15. A computer-readable storage medium having a computer program stored thereon, wherein When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 11.

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