CN116091635A - CT simulator image generation method and device and electronic equipment - Google Patents
CT simulator image generation method and device and electronic equipment Download PDFInfo
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Abstract
The invention discloses a CT simulator image generation method, a device and electronic equipment, wherein the method is applied to a simulation simulator integrated with a plurality of image adjustment functions, and a plurality of CT sequence images are prestored in the simulation simulator; the method comprises the following steps: when the analog simulation machine is started, responding to monitoring operation of selection results of a plurality of image adjusting functions, wherein the image adjusting parameters corresponding to different image adjusting functions are different; parameter adjustment is carried out on CT sequence images according to the selected image adjustment function; and displaying the adjusted CT sequence images according to the display requirement. The method can change the pre-stored CT sequence image parameters according to the actual demands in the simulation simulator to obtain the clinically real image with the parameter change, thereby facilitating students to learn the medical image inspection technology and the like better.
Description
Technical Field
The invention relates to the technical field of image processing, in particular to a CT simulator image generation method, a CT simulator image generation device and electronic equipment.
Background
At present, the experimental course of the medical image inspection technology is mostly clinical study teaching of 'the surrounding type' of students in radiology department inspection rooms, namely, teaching teachers take students to explain the students while operating. Most of the inspection equipment of radiology departments are large-scale medical equipment, and belong to scarce resources; meanwhile, the CT examination has potential radiation damage and has heavy clinical work, and each student cannot be trained manually. Therefore, according to the real examination environment, examination flow and operation condition of large medical equipment of radiology department, most institutions adopt simulation machine teaching, and the simulation machine can solve the problems well. The main function of the CT simulation system is to truly simulate the working flow and the operation process of the CT of the medical imaging equipment.
At present, the simulation machines on the market all use an image internal implantation technology, and in the teaching process, pre-implanted images are displayed according to requirements to complete teaching guidance. Although the built-in images and sequences of the machines of the companies are multiple, the built-in images in the simulation machine are fixed, and the problem that the display effect of the simulation machine and the effect of the true machine are large in difference possibly exists, so that the learning effect of students is affected to a certain extent.
Disclosure of Invention
Therefore, the invention aims to overcome the defect of larger difference between the display effect and the true effect of the existing simulation machine, thereby providing a CT simulation machine image generation method, a device and electronic equipment.
According to a first aspect, an embodiment of the present invention discloses a method for generating an image of a CT simulator, which is applied to a simulator integrated with a plurality of image adjustment functions, wherein a plurality of CT sequence images are stored in the simulator in advance; the method comprises the following steps: when the analog simulation machine is started, responding to monitoring operation of selection results of a plurality of image adjusting functions, wherein the image adjusting parameters corresponding to different image adjusting functions are different; parameter adjustment is carried out on CT sequence images according to the selected image adjustment function; and displaying the adjusted CT sequence images according to the display requirement.
Optionally, the method further comprises: performing visual format conversion on a plurality of pre-stored CT sequence images; and carrying out parameter adjustment on the CT sequence images after format conversion according to the selected image adjustment function.
Optionally, the image adjustment parameters include: the number of image layers; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps: acquiring the pixel spacing and the sequence layer spacing of a target CT sequence image to be regulated; calculating the number of image layers to be inserted between two adjacent images in the target CT sequence image according to the pixel spacing and the sequence layer spacing; and performing image insertion operation on the target CT sequence image according to the image layer number.
Optionally, the performing an image insertion operation on the target CT sequence image according to the image layer number includes: acquiring gray information of each image in the target CT sequence image; and determining the gray information of each inserted image according to the image layer number and the gray information of each image.
Optionally, the image adjustment parameter comprises a tube current; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps: obtaining a target tube current value; and adjusting the noise number of each image in the target CT sequence image to be adjusted according to the target tube current value and preset noise adjustment data, wherein the preset noise adjustment data is obtained by statistics according to the relation between the tube current value and the image noise number in the actual CT examination.
Optionally, the image adjustment parameter comprises a tube voltage; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps: obtaining a voltage value of a target tube; and adjusting the contrast of each image in the target CT sequence image to be adjusted according to the target tube voltage value and preset contrast adjustment data, wherein the preset contrast adjustment data is obtained by statistics according to the relation between the tube current value and the image contrast in the actual CT examination.
Optionally, the image adjustment parameter includes a display field; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps: acquiring a value of a target display field; when the value of the target display field is smaller than a preset value, cutting each image in the target CT sequence images to be adjusted; the cropped image is enlarged to the original pixels.
According to a second aspect, the embodiment of the invention also discloses an image generating device of a CT simulator, which is applied to a simulator integrated with a plurality of image adjusting functions, wherein a plurality of CT sequence images are prestored in the simulator; the device comprises: the response module is used for responding to the monitoring operation of the selection results of the plurality of image adjustment functions when the analog simulation machine is started, and the image adjustment parameters corresponding to different image adjustment functions are different; the first adjusting module is used for carrying out parameter adjustment on CT sequence images according to the selected image adjusting function; and the display module is used for displaying the adjusted CT sequence images according to the display requirement.
According to a third aspect, an embodiment of the present invention further discloses an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the steps of the CT simulator image generation method of the first aspect or any alternative embodiment thereof.
According to a fourth aspect, the embodiments of the present invention also disclose a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the CT simulator image generation method according to the first aspect or any of the alternative embodiments of the first aspect.
The technical scheme of the invention has the following advantages:
the CT simulator image generation method/device provided by the invention is applied to a simulation simulator integrated with a plurality of image adjustment functions, and a plurality of CT sequence images are prestored in the simulation simulator; the method comprises the following steps: when the analog simulation machine is started, responding to monitoring operation of selection results of a plurality of image adjusting functions, wherein the image adjusting parameters corresponding to different image adjusting functions are different; parameter adjustment is carried out on CT sequence images according to the selected image adjustment function; and displaying the adjusted CT sequence images according to the display requirement. According to the method, the simulation simulator can carry out parameter adjustment on the CT sequence images through the selection results of the image adjustment functions, and display the adjusted CT sequence images according to the display requirements, pre-stored CT sequence image parameters can be changed in the simulation simulator according to the actual requirements, and clinically real parameter-changed images are obtained, so that students can learn the contents of medical image inspection technologies and the like better, the problem that in the prior art, display teaching is carried out only through pre-stored CT sequence images, and the difference between the display effect and the effect of a simulation simulator is large possibly exists is solved, and the teaching effect is influenced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flowchart of a specific example of an image generation method of a CT simulator in an embodiment of the present invention;
FIG. 2A is a schematic diagram showing a specific example of an image generation method of a CT simulator in an embodiment of the present invention;
FIG. 2B is a schematic diagram showing a specific example of an image generation method of a CT simulator in an embodiment of the present invention;
FIG. 2C is a schematic diagram showing a specific example of an image generation method of a CT simulator in an embodiment of the present invention;
FIG. 2D is a schematic diagram showing a specific example of an image generation method of a CT simulator in an embodiment of the present invention;
FIG. 3 is a schematic block diagram of a specific example of an image generating apparatus of a CT simulator in an embodiment of the present invention;
fig. 4 is a diagram illustrating an embodiment of an electronic device according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The embodiment of the invention discloses an image generation method of a CT (computed tomography) simulator, which is applied to a simulator integrated with a plurality of image adjusting functions, wherein a plurality of CT sequence images are prestored in the simulator; the simulation machine is a teaching product used for medical image training teaching, simulation software can be built in the simulation machine, meanwhile, the simulation machine can store scanning images shot in advance by a hospital, and in the teaching process, after the scanning operation is executed, the simulation machine can display the built-in scanning images, so that teaching guidance work is completed. As shown in fig. 1, the method comprises the steps of:
The plurality of image adjustment functions may be, for example, functions that adjust different image parameters of the CT sequence images. Image adjustment parameters may include, but are not limited to, tube current, tube voltage, number of sequential image layers, layer spacing, and the like. In the embodiment of the application, when the simulation machine is required to be used for teaching and guiding CT images, the CT sequence images required to be subjected to image adjustment and the selected image adjustment function can be determined from the man-machine interaction interface of the simulation machine.
And 102, performing parameter adjustment on the CT sequence images according to the selected image adjustment function.
In an exemplary embodiment of the present application, the image quality of the CT sequence image may be changed by parameter adjustment of the CT sequence image through the selected image adjustment function, for example, when the selected image adjustment function is to adjust the contrast of the image, the contrast of the CT sequence image may be changed by a change in tube voltage in the CT inspection technology, and the simulation simulator may perform contrast adjustment on the CT sequence image through inputting the value of the tube voltage at the man-machine interaction end.
And step 103, displaying the adjusted CT sequence images according to the display requirement.
In this embodiment of the present application, the display requirement may be that all the adjusted images are displayed, or that any one or more images in the CT sequence images are displayed.
According to the CT simulator image generation method provided by the invention, the simulation simulator can carry out parameter adjustment on the CT sequence images through the selection results of the plurality of image adjustment functions, and display the adjusted CT sequence images according to the display requirements, and can change the pre-stored CT sequence image parameters according to the actual requirements in the simulation simulator to obtain clinically real parameter-changed images, thereby facilitating students to learn the contents such as medical image inspection technology better, solving the problem that the display effect and the true effect of the simulation simulator are large in difference and influencing the teaching effect in the prior art only by displaying and teaching the pre-stored CT sequence images.
As an alternative embodiment of the present invention, the method further comprises: performing visual format conversion on a plurality of pre-stored CT sequence images; and carrying out parameter adjustment on the CT sequence images after format conversion according to the selected image adjustment function.
Illustratively, in the embodiment of the present application, the plurality of CT sequence images pre-stored in the analog simulation machine are generally in Dicom format. Dicom, digital imaging and communication in medicine, is an international standard for medical images and related information. It defines a medical image format that can be used for data exchange with quality meeting clinical needs. The image data in the Dicom format can be converted into visualization formats such as jpg and png, and subsequent image processing and image display are facilitated.
As an alternative embodiment of the present invention, the image adjustment parameters include: the number of image layers; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps:
and acquiring the pixel spacing and the sequence layer spacing of the target CT sequence image to be regulated. The target CT sequence image to be adjusted may be any of a plurality of CT sequence images pre-stored in the simulation machine, and in this embodiment of the present application, the target CT sequence image to be adjusted may be selected through a human-computer interaction interface of the simulation machine. The pixel pitch and the sequence layer pitch may be obtained from the target sequence image to be adjusted in the Dicom format.
And calculating the number of image layers to be inserted between two adjacent images in the target CT sequence image according to the pixel spacing and the sequence layer spacing. In the embodiment of the application, when the pixel interval is a and the sequence layer interval is b, the number of image layers to be inserted between two adjacent images in the target CT sequence image to be adjusted is (b/a) -1. For example, the pixel pitch is 2, the sequence layer pitch is 10, and the number of image layers to be inserted between two adjacent images in the target CT sequence image to be adjusted is 4.
And performing image insertion operation on the target CT sequence image according to the image layer number. For example, in the embodiment of the application, an image insertion operation may be performed on the target CT sequence image to be adjusted through an interpolation algorithm.
As an optional embodiment of the present invention, performing an image insertion operation on the target CT sequence image according to the image layer number includes:
and acquiring gray information of each image in the target CT sequence image. Illustratively, gray scale information is used to characterize the brightness of each pixel point in the image.
And determining the gray information of each inserted image according to the image layer number and the gray information of each image. In the embodiment of the application, the gray scale of the image between two adjacent images of the target CT sequence image to be adjusted and the corresponding inserted image is uniformly changed, so that the gray scale information of each inserted image can be determined according to the number of image layers and the gray scale information of each image.
As an alternative embodiment of the present invention, the image adjustment parameter includes a tube current; parameter adjustment of CT sequence images according to a selected image adjustment function, comprising:
a target tube current value is obtained. For example, in the embodiment of the application, the target tube current value is a current value that the user wants to adjust, and may be input from a man-machine interaction interface of the simulation machine.
And adjusting the noise number of each image in the target CT sequence image to be adjusted according to the target tube current value and preset noise adjustment data, wherein the preset noise adjustment data is obtained by statistics according to the relation between the tube current value and the image noise number in the actual CT examination. Illustratively, in the embodiment of the present application, the noise of the image increases when the tube current decreases and decreases when the tube current increases, which is determined by the statistical result of the relation between the value of the tube current (mA) and the number of image noise in the actual CT examination. The number of image noise can be adjusted when the magnitude of the tube current is changed according to the actual statistical result. In image adjustment, the tube voltage (kV) may be fixed, the tube current (mA) may be gradually adjusted, and specific adjustment values may be as shown in table 1 below, where the first row represents the values of the tube voltage and the second row represents the values of the tube current. When kV is equal to 80 and mA is equal to 188, a schematic diagram of image adjustment can be shown in FIG. 2A; when kV is equal to 80 and mA is equal to 94, a schematic diagram of image adjustment can be shown in FIG. 2B; when kV is equal to 80 and ma is equal to 562, a schematic diagram of image adjustment can be shown in fig. 2C, and the influence of the tube current variation on the number of noise points when the tube voltage is fixed can be observed by comparing the three diagrams of fig. 2A, 2B, and 2C.
TABLE 1
As an alternative embodiment of the present invention, the image adjustment parameter includes a tube voltage; parameter adjustment of CT sequence images according to a selected image adjustment function, comprising:
and obtaining a target tube voltage value. For example, in the embodiment of the present application, the target voltage value is the voltage value that the user wants to adjust, and may be input from the man-machine interaction interface of the simulation machine.
And adjusting the contrast of each image in the target CT sequence image to be adjusted according to the target tube voltage value and preset contrast adjustment data, wherein the preset contrast adjustment data is obtained by statistics according to the relation between the tube current value and the image contrast in the actual CT examination. Illustratively, in the embodiment of the application, the statistical result of the relation between the tube voltage value and the number of image noise points in the actual CT examination can determine that when the tube voltage is larger, the contrast of the image is larger, and when the tube voltage is smaller, the contrast of the image is smaller, and the noise points of the image are more. The image contrast and the number of noise points can be adjusted when the magnitude of the tube voltage is changed according to the actual statistical result, for example, when the tube voltage is increased, the contrast of the jpg image is increased; when the tube voltage is reduced, the contrast of the jpg image is reduced, while the number of noise is increased for the image. In image adjustment, the tube current (mA) may be fixed, the tube voltage (kV) may be gradually adjusted, and specific adjustment values may be as shown in table 2 below, where the first row represents the values of the tube voltage and the second row represents the values of the tube current. When kV is equal to 140 and ma is equal to 189, a schematic diagram of image adjustment can be shown in fig. 2D, and the effect of tube voltage variation on image contrast size when the tube current is fixed can be generally observed by comparing fig. 2A with fig. 2D.
TABLE 2
As an alternative embodiment of the present invention, the image adjustment parameter includes a display field; parameter adjustment of CT sequence images according to a selected image adjustment function, comprising:
and acquiring a value of the target display field. For example, the display field is also called as reconstruction view (DFOV), which is an image range formed by reconstructing data, and is determined according to the position, size and property of the lesion, so that the reconstructed image is displayed more clearly, and the microstructure of the lesion position is highlighted, and can be input from a man-machine interaction interface of a simulation simulator.
And when the value of the target display field is smaller than a preset value, cutting each image in the target CT sequence images to be adjusted. Illustratively, in the embodiment of the present application, the maximum value of the DFOV of the general CT apparatus is 50cm, and when the DFOV is smaller than 50cm, the jpg format image of each image in the target CT sequence image to be adjusted may be cut in the same proportion.
The cropped image is enlarged to the original pixels. Illustratively, the cropped image is enlarged to the original pixels (the pixels of the CT image are typically fixed at 512x 512).
The embodiment of the invention also discloses an image generating device of the CT simulator, which is applied to a simulator integrated with a plurality of image adjusting functions, wherein a plurality of CT sequence images are prestored in the simulator; as shown in fig. 3, the apparatus includes: a response module 201, configured to respond to a monitoring operation of a selection result of the plurality of image adjustment functions when the analog simulation machine is started, where image adjustment parameters corresponding to different image adjustment functions are different; a first adjustment module 202, configured to perform parameter adjustment on the CT sequence image according to the selected image adjustment function; and the display module 203 is configured to display the adjusted CT sequence image according to a display requirement.
According to the CT simulator image generation device provided by the invention, the simulation simulator can carry out parameter adjustment on the CT sequence images through the selection results of the plurality of image adjustment functions, and display the adjusted CT sequence images according to the display requirements, and can change the pre-stored CT sequence image parameters according to the actual requirements in the simulation simulator to obtain clinically real parameter-changed images, so that students can learn the contents of medical image inspection technology and the like better, the problem that in the prior art, the display teaching is carried out only through the pre-stored CT sequence images, and the difference between the display effect and the true effect of the simulation simulator possibly exists is large is solved, and the teaching effect is influenced.
As an alternative embodiment of the present invention, the apparatus further comprises: the conversion module is used for carrying out visual format conversion on a plurality of prestored CT sequence images; and the second adjusting module is used for carrying out parameter adjustment on the CT sequence images after format conversion according to the selected image adjusting function.
As an alternative embodiment of the present invention, the image adjustment parameters include: the number of image layers; a first adjustment module comprising: the first acquisition submodule is used for acquiring the pixel spacing and the sequence layer spacing of the target CT sequence image to be adjusted; the calculating sub-module is used for calculating the number of image layers to be inserted between two adjacent images in the target CT sequence image according to the pixel spacing and the sequence layer spacing; and the first inserting sub-module is used for carrying out image inserting operation on the target CT sequence images according to the image layer number.
As an alternative embodiment of the present invention, a computing sub-module includes: the second acquisition sub-module is used for acquiring gray information of each image in the target CT sequence images; and the second inserting sub-module is used for determining the gray information of each inserted image according to the image layer number and the gray information of each image.
As an alternative embodiment of the present invention, the image adjustment parameter includes a tube current; a first adjustment module comprising: the third acquisition submodule is used for acquiring a target tube current value; the first adjusting sub-module is used for adjusting the noise number of each image in the target CT sequence image to be adjusted according to the target tube current value and preset noise adjusting data, and the preset noise adjusting data is obtained through statistics according to the relation between the tube current value and the image noise number in the actual CT examination.
As an alternative embodiment of the present invention, the image adjustment parameter includes a tube voltage; a first adjustment module comprising: the fourth acquisition submodule is used for acquiring a target tube voltage value; and the second adjusting sub-module is used for adjusting the contrast of each image in the target CT sequence images to be adjusted according to the target tube voltage value and preset contrast adjusting data, and the preset contrast adjusting data is obtained through statistics according to the relation between the tube current value and the image contrast in the actual CT examination.
As an alternative embodiment of the present invention, the image adjustment parameter includes a display field; a first adjustment module comprising: a fifth obtaining sub-module, configured to obtain a value of the target display field; the cutting sub-module is used for cutting each image in the target CT sequence images to be adjusted when the value of the target display field is smaller than a preset value; and the amplifying sub-module is used for amplifying the cut image into original pixels.
The embodiment of the present invention further provides an electronic device, as shown in fig. 4, which may include a processor 401 and a memory 402, where the processor 401 and the memory 402 may be connected by a bus or other means, and in fig. 4, the connection is exemplified by a bus.
The processor 401 may be a central processing unit (Central Processing Unit, CPU). The processor 401 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations thereof.
The memory 402, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the CT simulator image generation method in the embodiments of the present invention. The processor 401 executes various functional applications of the processor and data processing, namely, implements the CT simulator image generation method in the above-described method embodiments by running non-transitory software programs, instructions, and modules stored in the memory 402.
The one or more modules are stored in the memory 402, which when executed by the processor 401, performs the CT simulator image generation method in the embodiment shown in FIG. 1.
The specific details of the electronic device may be understood correspondingly with respect to the corresponding related descriptions and effects in the embodiment shown in fig. 1, which are not repeated herein.
Those skilled in the art will appreciate that implementing all or part of the processes of the above embodiments may be accomplished by computer programs in hardware associated with instructions, which may be stored on a computer HA202204708
The program may include, in a readable storage medium, a flow of embodiments of the methods described above when executed. Wherein the storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (RandomAccessMemory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations are within the scope of the invention as defined by the appended claims.
Claims (10)
1. The CT simulator image generation method is characterized by being applied to a simulator integrated with a plurality of image adjustment functions, wherein a plurality of CT sequence images are prestored in the simulator; the method comprises the following steps:
when the analog simulation machine is started, responding to monitoring operation of selection results of a plurality of image adjusting functions, wherein the image adjusting parameters corresponding to different image adjusting functions are different;
parameter adjustment is carried out on CT sequence images according to the selected image adjustment function;
and displaying the adjusted CT sequence images according to the display requirement.
2. The method according to claim 1, wherein the method further comprises:
performing visual format conversion on a plurality of pre-stored CT sequence images;
and carrying out parameter adjustment on the CT sequence images after format conversion according to the selected image adjustment function.
3. The method of claim 1, wherein the image adjustment parameters comprise: the number of image layers; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps:
acquiring the pixel spacing and the sequence layer spacing of a target CT sequence image to be regulated;
calculating the number of image layers to be inserted between two adjacent images in the target CT sequence image according to the pixel spacing and the sequence layer spacing;
and performing image insertion operation on the target CT sequence image according to the image layer number.
4. The method of claim 3, wherein performing an image insertion operation on the target CT sequence image according to the image slice number comprises:
acquiring gray information of each image in the target CT sequence image;
and determining the gray information of each inserted image according to the image layer number and the gray information of each image.
5. The method of claim 1, wherein the image adjustment parameter comprises a tube current; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps:
obtaining a target tube current value;
and adjusting the noise number of each image in the target CT sequence image to be adjusted according to the target tube current value and preset noise adjustment data, wherein the preset noise adjustment data is obtained by statistics according to the relation between the tube current value and the image noise number in the actual CT examination.
6. The method of claim 1, wherein the image adjustment parameter comprises a tube voltage; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps:
obtaining a voltage value of a target tube;
and adjusting the contrast of each image in the target CT sequence image to be adjusted according to the target tube voltage value and preset contrast adjustment data, wherein the preset contrast adjustment data is obtained by statistics according to the relation between the tube current value and the image contrast in the actual CT examination.
7. The method of claim 1, wherein the image adjustment parameter comprises a display field; the parameter adjustment of the CT sequence image according to the selected image adjustment function comprises the following steps:
acquiring a value of a target display field;
when the value of the target display field is smaller than a preset value, cutting each image in the target CT sequence images to be adjusted;
the cropped image is enlarged to the original pixels.
8. The CT simulator image generating device is characterized by being applied to a simulator integrated with a plurality of image adjusting functions, wherein a plurality of CT sequence images are stored in the simulator in advance; the device comprises:
the response module is used for responding to the monitoring operation of the selection results of the plurality of image adjustment functions when the analog simulation machine is started, and the image adjustment parameters corresponding to different image adjustment functions are different;
the first adjusting module is used for carrying out parameter adjustment on CT sequence images according to the selected image adjusting function;
and the display module is used for displaying the adjusted CT sequence images according to the display requirement.
9. An electronic device, comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the steps of the CT simulator image generation method of any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the CT simulator image generation method of any of claims 1-7.
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