CN114237749A - Parameter configuration method of scanning system, scanning system and electronic device - Google Patents
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Abstract
The application relates to a parameter configuration method of a scanning system, the scanning system and an electronic device, wherein the parameter configuration method of the scanning system comprises the following steps: identifying, by a scanning system, location information of a body region of a scanning subject; determining that the body area is a first area or a second area according to the position information, wherein the first area and the second area are body areas of different positions of the scanning object; a first parameter of the scanning system is configured if the body region is in the first region, and a second parameter of the scanning system different from the first parameter is configured if the body region is in the second region. By the method and the device, the problem that the overall data processing cost is increased while higher-quality scanned image data are acquired in the related art is solved, the effect of reducing the processing data processing amount to reduce the processing cost in the process of acquiring high-quality scanned image data is realized, and the data processing efficiency is improved.
Description
Technical Field
The present application relates to the field of medical equipment technologies, and in particular, to a parameter configuration method for a scanning system, and an electronic apparatus.
Background
The Micro CT system is an electronic Computed Tomography (CT) system developed based on a Computed Tomography (CT) system and specially used for small animal in vivo experimental research. Micro CT systems typically employ a cone-shaped X-ray beam to obtain a truly isotropic volumetric image, increasing spatial resolution and ray utilization
In the related art, currently, in the scanning process of a Micro CT system, the same set of scanning parameters is adopted in the whole scanning area; within the entire reconstruction region, the same set of reconstruction parameters is used. Therefore, after the current Micro CT scanning, a scanning image with the same quality is obtained in the whole scanning area, and a reconstruction image with the same quality is obtained in the whole reconstruction area. However, during scanning of a scanned object, high quality scanned image data is generally required for more accurate analysis of the subject under study, and if there is some unnecessary high quality data in the acquired scanned image data, the overall data processing cost is increased.
In the related art, no effective solution is provided at present for the problem that the overall data processing cost is increased while acquiring higher-quality scanned image data.
Disclosure of Invention
In the present embodiment, a parameter configuration method of a scanning system, an electronic device, and a storage medium are provided to solve the problem in the related art that the overall data processing cost increases while acquiring higher-quality scanned image data.
In a first aspect, in this embodiment, a method for configuring parameters of a scanning system is provided, including:
identifying, by a scanning system, location information of a body region of a scanning subject;
determining that the body area is a first area or a second area according to the position information, wherein the first area and the second area are body areas of different positions of the scanning object;
configuring a first parameter of the scanning system if the body region is in the first region, and configuring a second parameter of the scanning system different from the first parameter if the body region is in the second region.
In some of these embodiments, said determining from said location information that said body region is a first region or a second region comprises:
acquiring identification information for distinguishing the first area from the second area;
and determining the body area as a first area or a second area according to the position relation between the position information and the identification information.
In some of these embodiments, the identification information is a checkbox.
In some embodiments, the determining that the body region is the first region or the second region according to the position relationship between the position information and the identification information includes:
if the body area of the scanning object is judged to be outside the selected frame according to the position information, the body area is a first area;
and if the body area of the scanning object is judged to be in the selected frame according to the position information, the body area is a second area.
In some embodiments, the method for acquiring the selection box includes:
acquiring a scout image of the scanning object through the scanning system;
determining a region of interest of the scanning object according to the scout image;
and determining the geometric parameters of the selected frame according to the geometric parameters of the region of interest.
In some of these embodiments, said determining the geometric parameters of the selection box according to the geometric parameters of the region of interest comprises:
determining the position of the selected frame according to the position of the region of interest; and/or the presence of a gas in the gas,
determining the size of the selected frame according to the size of the region of interest; and/or the presence of a gas in the gas,
and determining the shape of the selected frame according to the shape of the region of interest.
In some of these embodiments, after configuring a first parameter of the scanning system if the body region is in the first region and a second parameter of the scanning system different from the first parameter if the body region is in the second region, the method further comprises:
obtaining a first scanning image according to the scanning parameters in the first parameters, and obtaining a first reconstruction image according to the reconstruction parameters in the first parameters;
obtaining a second scanned image according to the scanning parameters in the second parameters, and obtaining a second reconstructed image according to the reconstruction parameters in the second parameters; the image quality evaluation parameter of the second scanned image is better than the image quality evaluation parameter of the first scanned image, and the image quality evaluation parameter of the second reconstructed image is better than the image quality evaluation parameter of the second reconstructed image.
In a second aspect, there is provided in this embodiment a scanning system comprising a scanner and a processor, the processor comprising an identification module, a determination module, and a configuration module:
the identification module is used for identifying the position information of the body area of the scanning object through the scanner;
the determining module is configured to determine that the body region is a first region or a second region according to the position information, where the first region and the second region are body regions of different positions of the scanning object;
the configuration module is configured to configure a first parameter of the scanning system if the body area is in the first region, and configure a second parameter of the scanning system different from the first parameter if the body area is in the second region.
In a third aspect, in this embodiment, there is provided an electronic apparatus, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the processor implements the parameter configuration method of the scanning system according to the first aspect.
In a fourth aspect, in the present embodiment, a storage medium is provided, on which a computer program is stored, which when executed by a processor, implements the steps of the parameter configuration method of the scanning system according to the first aspect.
Compared with the related art, the parameter configuration method of the scanning system provided in the embodiment identifies the position information of the body region of the scanning object through the scanning system; determining that the body area is a first area or a second area according to the position information, wherein the first area and the second area are body areas of different positions of the scanning object; a first parameter of the scanning system is configured if the body region is in the first region, and a second parameter of the scanning system different from the first parameter is configured if the body region is in the second region. Different parameters are configured for different body areas, so that the problem that the overall data processing cost is increased while higher-quality scanning image data are acquired in the related technology is solved, the effect of reducing the processing data processing amount to reduce the processing cost in the process of acquiring high-quality scanning image data is realized, and the data processing efficiency is improved.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a block diagram of a hardware configuration of a terminal of a parameter configuration method of a scanning system of the present embodiment;
fig. 2 is a schematic application environment diagram of a parameter configuration method of a scanning system according to an embodiment of the present application;
FIG. 3 is a flow chart of a parameter configuration method of a scanning system according to an embodiment of the present application;
FIG. 4 is a flow chart of a selected frame acquisition method according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a selection box according to an embodiment of the present application;
FIG. 6 is a schematic diagram of region partitioning according to a preferred embodiment of the present application;
fig. 7 is a block diagram of a scanning system according to an embodiment of the present application.
Detailed Description
For a clearer understanding of the objects, aspects and advantages of the present application, reference is made to the following description and accompanying drawings.
Unless defined otherwise, technical or scientific terms used herein shall have the same general meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of this application do not denote a limitation of quantity, either in the singular or the plural. The terms "comprises," "comprising," "has," "having," and any variations thereof, as referred to in this application, are intended to cover non-exclusive inclusions; for example, a process, method, and system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or modules, but may include other steps or modules (elements) not listed or inherent to such process, method, article, or apparatus. Reference throughout this application to "connected," "coupled," and the like is not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Reference to "a plurality" in this application means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. In general, the character "/" indicates a relationship in which the objects associated before and after are an "or". The terms "first," "second," "third," and the like in this application are used for distinguishing between similar items and not necessarily for describing a particular sequential or chronological order.
The method embodiments provided in the present embodiment may be executed in a terminal, a computer, or a similar computing device. For example, the method is executed on a terminal, and fig. 1 is a hardware configuration block diagram of the terminal in the parameter configuration method of the scanning system of the embodiment. As shown in fig. 1, the terminal may include one or more processors 102 (only one shown in fig. 1) and a memory 104 for storing data, wherein the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA. The terminal may also include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those of ordinary skill in the art that the structure shown in fig. 1 is merely an illustration and is not intended to limit the structure of the terminal described above. For example, the terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 may be used to store a computer program, for example, a software program and a module of an application software, such as a computer program corresponding to the parameter configuration method of the scanning system in the embodiment, and the processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, so as to implement the method described above. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used to receive or transmit data via a network. The network described above includes a wireless network provided by a communication provider of the terminal. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.
Fig. 2 is a schematic application environment diagram of a parameter configuration method of a scanning system according to an embodiment of the present application, as shown in fig. 2, in the case that the scanning system is a micro CT, the micro CT includes an X-ray source 21 and a detection device 23, wherein the X-ray source 21 is used for emitting X-rays, and the detection device 23 receives the X-rays transmitted through a scanning object 22, so as to complete scanning of the scanning object 22, wherein the X-ray source 21 is fixed on a rigid support.
In this embodiment, a parameter configuration method of a scanning system is provided, and fig. 3 is a flowchart of the parameter configuration method of the scanning system according to the embodiment of the present application, as shown in fig. 3, the flowchart includes the following steps:
in step S301, position information of the body region of the scanning object is identified by the scanning system.
The scanning system in this embodiment is preferably a micro scanning system, which is a scanning system developed based on a clinical scanning system technology and specially used for small animal in vivo experimental research, and may be a micro CT or a micro PET, wherein the PET system is a Positron Emission Computed Tomography (Positron Emission Computed Tomography) system. Compared with a clinical scanning system, the micro scanning system has higher system spatial resolution and sensitivity and smaller aperture so as to meet the requirement of small-volume animal model research. Therefore, the scanning object in the present embodiment is preferably various types of small animals.
Generally, a scanning system includes a scanner and an upper computer, wherein the scanner can perform image scanning on a scanning object, and the upper computer can perform image reconstruction according to scanning data. Therefore, in the process of parameter configuration, the position information of the body region of the scanning object may be position information of the currently scanned body region relative to the whole body of the scanning object in the process of scanning the scanning object, and may also be position information of the currently reconstructed body region relative to the whole body of the scanning object in the process of image reconstruction, specifically, the body region refers to a local region of the body, and accordingly, the position information may be specific body tissues, such as a head, a chest, a trunk, four limbs, and the like, and may also be represented by one or more coordinates in the scanned image or the reconstructed image.
Step S302, determining the body area as a first area or a second area according to the position information, wherein the first area and the second area are body areas of different positions of the scanning object.
In the study process of the scanning object, some body regions need to be intensively studied, so a high-quality scan or reconstruction result is needed, while other body regions only need to be a common scan or reconstruction result, so before formal scan or reconstruction, a target study region of interest in the whole body of the scanning object can be determined, and then region division can be performed according to the target study region, specifically, the target study region is a region needing to be scanned or reconstructed with high quality, and the region except the target study region is a common scan or reconstruction region.
In this embodiment, the first region and the second region are body regions at different positions of the scanning subject. Illustratively, a first region represents a region that only needs to be scanned or reconstructed normally, and a second region represents a region of interest that needs to be scanned or reconstructed with high quality. Since the first region and the second region are already divided before the formal scanning or reconstruction, after the position information of the body region of the current scanning object is obtained, the position information can be compared with the first region and/or the second region to determine whether the body region of the current scanning object belongs to the first region or the second region. Preferably, the position information obtaining method may be: and acquiring the position of the absolute zero point through the grating ruler, and determining the position information of the body area through the relative position information between the current body area and the absolute zero point.
If the first region and the second region are directly divided by the name of the body tissue, for example, assuming that the head is the region of interest, if it is determined from the position information that the currently scanned body region is the head, the body region belongs to the second region, otherwise, the body region belongs to the first region. If the first area and the second area are divided according to the coordinates, the coordinates corresponding to the position information may be compared with the coordinates of the first area and the second area, and then it is determined that the body area belongs to the first area or the second area according to the comparison result.
In the present application, the number of the first region or the second region may be one or more.
Step S303, if the body area is in the first area, configuring a first parameter of the scanning system, and if the body area is in the second area, configuring a second parameter of the scanning system different from the first parameter.
In order to reduce the data processing cost, different parameters may be set in the first region and the second region, wherein the first parameters comprise scanning parameters and/or reconstruction parameters and the second parameters comprise scanning parameters and/or reconstruction parameters. Illustratively, the scanned or reconstructed image obtained by the first parameter has less image data, and the scanned or reconstructed image obtained by the second parameter has more image data.
Through the steps S301 to S303, in the process of performing image scanning or image reconstruction on the scanning object, it is determined whether the body region of the current scanning object belongs to the preset first region or second region according to the position information, and then the corresponding first parameter or second parameter is configured according to the specific region. Compared with the prior art in which the same high-quality parameters are set for the whole scanned image and/or reconstructed image, the method in the embodiment sets the high-quality parameters only for the region of interest, so that unnecessary high-quality data can be reduced, the problem that the whole data processing cost is increased while higher-quality scanned image data is acquired in the prior art is solved, the effect of reducing the processing data processing amount to reduce the processing cost in the process of acquiring high-quality scanned image data is realized, and the efficiency of data processing is improved.
It should be noted that, in the present application, the body of the scanning object may be divided into a plurality of regions, and the first region and the second region are only two regions. Therefore, it is also possible to identify position information of a body region of a scanning object by a scanning system, determine region information of the body region according to the position information, wherein a plurality of regions respectively correspond to different configuration parameters, the configuration parameters comprise scanning parameters and/or reconstruction parameters, and then scan and/or reconstruct the scanning object according to the configuration parameters corresponding to the region information.
In some embodiments, after determining the configuration parameters of the scanning system, the image scanning or image reconstruction of the scanning object can be performed according to the configuration parameters, wherein the configuration parameters include a first parameter corresponding to the first region or a second parameter corresponding to the second region. Specifically, a first scanning image is obtained according to scanning parameters in the first parameters, and a first reconstruction image is obtained according to reconstruction parameters in the first parameters; and obtaining a second scanned image according to the scanning parameters in the second parameters, and obtaining a second reconstructed image according to the reconstruction parameters in the second parameters.
And the image quality evaluation parameter of the second scanning image is superior to that of the first scanning image, and the image quality evaluation parameter of the second reconstruction image is superior to that of the second reconstruction image. Whether the image is a scanned image or a reconstructed image, the image quality is a description of the overall effect of the image and can be evaluated through various parameters. The second scan image and the second reconstructed image have better image quality evaluation parameters, which means that the second scan image and the second reconstructed image have more image details and can reflect the body anatomy information of the scanned object more accurately and more, and generally have more scan data or reconstructed data, compared with the first scan image and the first reconstructed image. The preset image quality evaluation parameters in this embodiment may be definition, details, texture, artifacts, and the like, and the process of evaluating different scanned images or reconstructed images by the image quality evaluation parameters may be implemented by evaluation software or an image analysis algorithm.
Further, the scan parameters include at least one of: tube voltage, scan angle, scan time; the reconstruction parameters include at least one of: the size and layer thickness of the reconstruction matrix. Compared with the first scanning parameter, the second scanning parameter has a higher tube voltage, a smaller scanning angle and a longer scanning time, and compared with the first reconstruction parameter, the second reconstruction parameter has a larger reconstruction matrix and a thinner layer thickness.
In this embodiment, after the first region and the second region are distinguished, the scanning parameters and the reconstruction parameters with higher quality are configured only in the second region, so that while higher image quality is obtained, the scanning time, the scanning dose, the data volume of the scanning data and the reconstruction data, and the data processing difficulty can be effectively reduced.
In some embodiments, the first region and the second region are divided by the identification information, and the specific method for determining the body region as the first region or the second region according to the position information includes: the method comprises the steps of firstly acquiring identification information for distinguishing a first area from a second area, and then determining that a body area is the first area or the second area according to the position relation between the position information and the identification information.
The identification information is a visual mark for dividing the first region and the second region, and may be an identification line used as a boundary between the first region and the second region, a plurality of identification points for framing the first region or the second region, or a regular or irregular geometric figure, such as a square, a circle, a curved edge figure, and the like. After the identification information is obtained, it can be known which regions on the body of the scanning object are the first regions and which regions are the second regions according to a preset rule, for example, the preset rule is used to specify the relationship between the first regions, the second regions and the identification information. Then, during the formal scanning or reconstruction process, it can be determined whether the body region belongs to the first region or the second region according to the position relationship between the position information and the identification information of the body region. Preferably, the position information is determined by coordinates.
In the embodiment, the specific region types of the body region can be divided more intuitively through the identification information, so that the visualization of the scanning or reconstruction process is improved, and the accuracy in judging the region types of the body region is improved. Wherein the region type is a first region or a second region.
Preferably, since the target research area requiring the intensive research is usually concentrated at one place, dividing the first area and the second area by the selection frame is more suitable for the actual scene requirement. In general, a target study area requiring an intensive study may be preset in a selected frame, and a non-target study area may be preset outside the selected frame.
On the basis, after the position information of the body area of the scanning object is acquired, the position information of the body area can be compared with the position information of the selection frame, and if the body area of the scanning object is judged to be outside the selection frame according to the position information, the body area is a first area; and if the body area of the scanning object is judged to be in the selected frame according to the position information, the body area is the second area. Preferably, when comparing the position information of the body region and the position information of the selected frame, it is possible to realize by mathematical calculation between coordinates. In this embodiment, the body region is determined to be the first region or the second region by comparing the position information of the body region with the selected frame, so that the accuracy of determining the region type of the body region can be effectively improved.
In some embodiments, fig. 4 is a flowchart of a selected frame acquiring method according to an embodiment of the present application, and as shown in fig. 4, the flowchart includes the following steps:
step S401, a scout image of the scanning object is acquired by the scanning system.
Generally, before performing a formal scan on a scanning object, it is necessary to perform a rapid scan on the scanning object to obtain a planar image of a scanning area, which is called a scout image (Topogram), and determine a scanning range for a subsequent formal scan according to the scout image, and then perform the formal scan on a person to be scanned. Preferably, the scanning object performs scanning of the scout image after the scanning bed is completely set, and the scout image comprises a normal image and/or a lateral image.
Step S402, determining the interested area of the scanning object according to the positioning image.
Since the scout image is also obtained by scanning the scan target, anatomical information of the scan target can be acquired by the scout image. Therefore, after the positioning image is acquired, the position information of the target research area can be manually input so as to define the interested area, and the interested area can also be automatically selected by a scanning system through image identification.
The region of interest is a target research region in which an important research needs to be performed, and corresponds to the second region. Preferably, the region of interest may be divided in a two-dimensional image or a three-dimensional image.
Step S403, determining the geometric parameters of the selection frame according to the geometric parameters of the region of interest.
In general, there is a corresponding relationship between the geometric parameters of the region of interest and the geometric parameters of the selection box, and specifically, the geometric parameters of the selection box may be determined directly according to the geometric parameters of the region of interest, or the geometric parameters of the region of interest may be enlarged or reduced to obtain the geometric parameters of the selection box.
Through the steps S401 to S403, the specific selection frame is determined according to the scout image of the scanning object, so that the accuracy of dividing the target research region can be improved.
Preferably, the geometric parameters include position, size and shape. Thus, the position of the selection box can be determined according to the position of the region of interest; and/or determining the size of the selection frame according to the size of the region of interest; and/or determining the shape of the selection box according to the shape of the region of interest. Similarly, one or more geometric parameters of the region of interest may be directly used as the geometric parameters of the selection box, or may be adjusted on the basis of the geometric parameters of the region of interest to obtain the geometric parameters of the selection box. For example, the size of the selection box may be smaller than the region of interest, and in the case where the region of interest is an irregular figure, the selection box may be set to a geometric figure having a similar shape. Preferably, fig. 5 is a schematic diagram of a selection frame according to an embodiment of the present application, and as shown in fig. 5, a shape formed by a curve is a scanning object, a rectangular frame is a complete scanning area of the scanning object, a triangle is the selection frame, a second area is located inside the triangle, and an area between the rectangular frame and the triangle is a first area. In other embodiments, the selection box may be configured as a rectangle if the region of interest is the heart, and as a prism if the region of interest is the abdomen. In this embodiment, the accuracy of the selected frame can be further improved by determining the selected frame by the position, size, and/or shape.
The present embodiment will be described and illustrated with reference to the preferred embodiments by way of example of Micro CT.
In the actual Micro CT scanning and reconstruction process, high quality image data is required for experimental research to perform more accurate analysis on the scanned object. Accordingly, the required scan parameters for high quality images correspond to longer scan times and radiation doses, the required reconstruction parameters for high quality images correspond to longer reconstruction times and greater reconstruction data volumes. Thus, if there is some unnecessary "high quality" data in the acquired scan data, the overall reconstructed data volume will increase; meanwhile, if all the scan data are reconstructed by adopting high-quality reconstruction parameters, the difficulty of data processing is increased.
In a CT system for clinical use, in order to distinguish the scanning parameters of a target study region from the non-target study region, the scanning parameters are usually replaced according to the CT threshold during scanning, for example, when the detected CT value satisfies the set threshold condition, the scanning parameters are replaced to scan different scanning regions with different parameters, and simultaneously, the radiation dose is reduced to distinguish the target study region from the non-target study region. The method relies on threshold setting of CT values, better system calculation and response speed, particularly, the threshold setting is related to the density of a scanning object, a clinical CT system generally scans a human body, and compared with a small animal, the size of each tissue part in the human body is larger, and the requirement on the response time of the system is lower. However, in animal scanning experiments, the method is not suitable for Micro CT because the animal volume is small, the scanning space changes rapidly, and the response time requirement on the system is high.
Based on this, the present embodiment provides a scanning and reconstructing method applied to Micro CT, including the following steps:
step 1, acquiring a positioning image of a scanned object;
step 2, determining a selected frame aiming at a target research area according to an actual research part in the positioning image, wherein a second area, namely the target research area, is arranged in the selected frame, corresponds to a high-quality scanning and reconstruction area, and is a first area, namely a non-target research area, outside the selected frame;
preferably, the present embodiment may determine, by using the scout image, an entire scanning area that needs to be scanned on the scanning object, where a boundary of the entire scanning area is determined by an outer frame, and determine, based on the scout image, a target study area, where a boundary of the target study area is determined by an inner frame, where the inner frame is a selection frame. The second area in this application corresponds to the area in the inner frame and the first area corresponds to the area between the inner frame and the outer frame.
And 3, defining two configuration parameters in the parameter protocol, wherein one configuration parameter is a first parameter corresponding to a non-target research area and is a common parameter, and the other configuration parameter is a second parameter corresponding to a target research area and is a high-quality parameter. Unlike high quality parameters, common parameters require less to reduce scan dose, scan time, and data volume during scanning and reconstruction. Specifically, the area in the inner frame sets the second parameter, and the area between the inner frame and the outer frame sets the first parameter.
And 4, before formal scanning, determining the scanning position by using the vertex of the outer frame, for example, the upper left corner of the outer frame. And meanwhile, the region type corresponding to the body region and specific scanning parameters and/or reconstruction parameters are determined by scanning the position information of the object body region, the position information of the outer frame and the position information of the inner frame. It should be noted that the "vertex" in this embodiment is merely an example, and in other embodiments, the determination of the scanning position may be started from any point of the outer frame.
Fig. 6 is a schematic diagram of region division according to the preferred embodiment of the present application, and as shown in fig. 6, image scanning and image reconstruction under normal parameters are performed in the region between the solid line and the dotted line, and image scanning and image reconstruction under high quality parameters are performed in the region enclosed by the dotted line.
In this embodiment, by integrating the design of the selection frame and the high-quality parameters corresponding to the high-quality image, the high-quality scanned image and the high-quality reconstructed image of the scanned object can be obtained in each image scanning and image reconstruction process, and the scanning time is effectively reduced, the radiation dose is reduced, the reduction of the original data volume and the reconstructed data volume is facilitated, and the difficulty of subsequent processing is reduced while the obtaining of the high-quality scanned image and the high-quality reconstructed image is not affected.
It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
In this embodiment, a scanning system is further provided, and the scanning system is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted for brevity. The terms "module," "unit," "subunit," and the like as used below may implement a combination of software and/or hardware for a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 7 is a block diagram of a scanning system according to an embodiment of the present application, and as shown in fig. 7, the system includes a scanner 71 and a processor 72, and the processor 72 includes an identification module 721, a determination module 722, and a configuration module 723:
an identification module 721 for identifying the position information of the body region of the scanning subject by the scanner 71;
a determining module 722, configured to determine, according to the position information, that the body region is a first region or a second region, where the first region and the second region are body regions at different positions of the scanning object;
a configuration module 723 for configuring a first parameter of the scanning system if the body region is in a first region and a second parameter of the scanning system different from the first parameter if the body region is in a second region.
In the scanning system, during the process of image scanning or image reconstruction of the scanning object, the determining module 722 determines whether the body region of the current scanning object belongs to the preset first region or second region according to the position information, and then the configuring module 723 configures the corresponding first parameter or second parameter according to the specific region. Compared with the prior art in which the same high-quality parameters are set for the whole scanned image and/or reconstructed image, the method in the embodiment sets the high-quality parameters only for the region of interest, so that unnecessary high-quality data can be reduced, the problem that the whole data processing cost is increased while higher-quality scanned image data is acquired in the prior art is solved, the effect of reducing the processing data processing amount to reduce the processing cost in the process of acquiring high-quality scanned image data is realized, and the efficiency of data processing is improved.
In some embodiments, the determining module 722 is further configured to obtain identification information for distinguishing the first area from the second area; and determining the body area as the first area or the second area according to the position relation between the position information and the identification information. The identification information is preferably a selection box.
In some embodiments, the determining module 722 is further configured to determine that the body area of the scanned object is outside the selected frame according to the position information, and the body area is the first area; and if the body area of the scanning object is judged to be in the selected frame according to the position information, the body area is the second area.
In some of these embodiments, the processor 72 includes a selected frame acquisition module for acquiring a scout image of the scanned object by the scanning system; determining the region of interest of the scanned object according to the scout image; and determining the geometric parameters of the selected frame according to the geometric parameters of the region of interest.
In some of these embodiments, the select box acquisition module determines the position of the select box based on the position of the region of interest; and/or determining the size of the selection frame according to the size of the region of interest; and/or determining the shape of the selection box according to the shape of the region of interest.
In some embodiments, the scanner 71 obtains a first scanned image according to the scanning parameters of the first parameters, and obtains a second scanned image according to the scanning parameters of the second parameters, and the processor 72 further includes a reconstruction module for obtaining a first reconstructed image according to the reconstruction parameters of the first parameters, and obtaining a second reconstructed image according to the reconstruction parameters of the second parameters. And the image quality evaluation parameter of the second scanning image is superior to that of the first scanning image, and the image quality evaluation parameter of the second reconstruction image is superior to that of the second reconstruction image.
The above modules may be functional modules or program modules, and may be implemented by software or hardware. For a module implemented by hardware, the modules may be located in the same processor; or the modules can be respectively positioned in different processors in any combination.
There is also provided in this embodiment an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
and S1, identifying the position information of the body area of the scanning object through the scanning system.
And S2, determining the body area to be a first area or a second area according to the position information, wherein the first area and the second area are body areas of different positions of the scanning object.
S3, configuring a first parameter of the scanning system if the body region is in the first region, and configuring a second parameter of the scanning system different from the first parameter if the body region is in the second region.
It should be noted that, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementations, and details are not described again in this embodiment.
In addition, in combination with the parameter configuration method of the scanning system provided in the foregoing embodiment, a storage medium may also be provided in this embodiment. The storage medium having stored thereon a computer program; the computer program, when executed by a processor, implements a parameter configuration method of any of the scanning systems in the above embodiments.
It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to be limiting. All other embodiments, which can be derived by a person skilled in the art from the examples provided herein without any inventive step, shall fall within the scope of protection of the present application.
It is obvious that the drawings are only examples or embodiments of the present application, and it is obvious to those skilled in the art that the present application can be applied to other similar cases according to the drawings without creative efforts. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
The term "embodiment" is used herein to mean that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly or implicitly understood by one of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the patent protection. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A method for configuring parameters of a scanning system, comprising:
identifying, by a scanning system, location information of a body region of a scanning subject;
determining that the body area is a first area or a second area according to the position information, wherein the first area and the second area are body areas of different positions of the scanning object;
configuring a first parameter of the scanning system if the body region is in the first region, and configuring a second parameter of the scanning system different from the first parameter if the body region is in the second region.
2. The method of claim 1, wherein the determining the body region as the first region or the second region according to the position information comprises:
acquiring identification information for distinguishing the first area from the second area;
and determining the body area as a first area or a second area according to the position relation between the position information and the identification information.
3. The parameter configuration method of a scanning system according to claim 2, wherein the identification information is a selection box.
4. The method according to claim 3, wherein the determining the body region as the first region or the second region according to the position relationship between the position information and the identification information comprises:
if the body area of the scanning object is judged to be outside the selected frame according to the position information, the body area is a first area;
and if the body area of the scanning object is judged to be in the selected frame according to the position information, the body area is a second area.
5. The parameter configuration method of the scanning system according to claim 3, wherein the method for acquiring the selection box comprises:
acquiring a scout image of the scanning object through the scanning system;
determining a region of interest of the scanning object according to the scout image;
and determining the geometric parameters of the selected frame according to the geometric parameters of the region of interest.
6. The method of claim 5, wherein the determining the geometric parameters of the selected frame according to the geometric parameters of the region of interest comprises:
determining the position of the selected frame according to the position of the region of interest; and/or the presence of a gas in the gas,
determining the size of the selected frame according to the size of the region of interest; and/or the presence of a gas in the gas,
and determining the shape of the selected frame according to the shape of the region of interest.
7. The method of configuring parameters of a scanning system according to any one of claims 1 to 6, characterized in that the method further comprises:
obtaining a first scanning image according to the scanning parameters in the first parameters, and obtaining a first reconstruction image according to the reconstruction parameters in the first parameters;
and obtaining a second scanned image according to the scanning parameters in the second parameters, and obtaining a second reconstructed image according to the reconstruction parameters in the second parameters.
8. A scanning system comprising a scanner and a processor, the processor comprising an identification module, a determination module, and a configuration module:
the identification module is used for identifying the position information of the body area of the scanning object through the scanner;
the determining module is configured to determine that the body region is a first region or a second region according to the position information, where the first region and the second region are body regions of different positions of the scanning object;
the configuration module is configured to configure a first parameter of the scanning system if the body area is in the first region, and configure a second parameter of the scanning system different from the first parameter if the body area is in the second region.
9. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and the processor is configured to execute the computer program to perform the parameter configuration method of the scanning system according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the parameter configuration method of a scanning system of any one of claims 1 to 7.
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