Multi-modal imaging device based on cold cathode

Abstract

The invention relates to the technical field of radiation imaging, in particular to a multi-mode imaging device based on a cold cathode, which comprises an X-ray source module, a CT detection module, an ultrasonic detection module, an imaging module, a storage module, a control module and a data analysis module, determining the image definition grade of the initial image according to the definition comparison difference value, and judging whether to carry out secondary scanning on the ultrasonic detection module or not according to the definition grade; on the basis of secondary scanning, whether the power of the ultrasonic detection module is adjusted or not is judged according to a secondary scanning result; judging whether to carry out regional analysis or not according to the image similarity grade of the secondary image; and determining a region similarity ratio based on the region analysis result, and adjusting the power of the X-ray source module according to the region similarity ratio. According to the invention, the scanning parameters are adjusted through different image definitions so as to obtain a complete and clear scanning image.

Description

Technical Field

[0001] The present invention relates to the field of radiation imaging technology, and in particular to a multi-modal imaging device based on a cold cathode. Background Art

[0002] CT is a medical imaging technology that uses X-rays to generate detailed images of the body's internal structures. The basic principle of CT scanning is to use X-ray beams to scan layers of a specific thickness of the human body. CT images reflect the degree of absorption of X-rays by organs and tissues in different grayscales, have high density resolution, and can clearly display soft tissue and bone structures.

[0003] Chinese Patent Publication No.: CN117694834A discloses a multimodal fluorescence hyperspectral micro-CT imaging method and device, the device includes an X-ray CT scanning module, a gaze-type rapid fluorescence hyperspectral imaging module, a high-resolution fluorescence hyperspectral imaging module, and an information processing unit. During the rotation scanning process of the device, the X-ray CT scanning module collects CT images of the sample at multiple angles to restore the internal three-dimensional structure. At the same time, the gaze-type rapid fluorescence hyperspectral imaging module and the high-resolution fluorescence hyperspectral imaging module collect the fluorescence hyperspectral data of the sample. The fluorescence hyperspectral data is matched with the internal three-dimensional data of the sample through the information processing unit to form a visualized multimodal fluorescence hyperspectral micro-CT model.

[0004] It can be seen that the prior art has the following problem: the scanning parameters are not adjusted according to different image sharpnesses to obtain a complete and clear scanned image. Summary of the invention

[0005] To this end, the present invention provides a multi-modal imaging device based on a cold cathode, so as to overcome the lack of adjusting scanning parameters through different image sharpness in the prior art to obtain a complete and clear scanned image.

[0006] To achieve the above object, the present invention provides a multi-modal imaging device based on a cold cathode, comprising:

[0007] An X-ray source module, used for generating X-rays, wherein the X-rays can penetrate the target tissue, so as to be used for imaging the target tissue;

[0008] CT detection module, used to detect X-rays passing through target tissue and convert them into electrical signals;

[0009] An ultrasonic detection module, used to assist the CT detection module in image acquisition;

[0010] An imaging module, used for processing the image data collected by the CT detection module and the ultrasound detection module to display them as visual images;

[0011] A storage module, used for storing standard parameters and standard image during the imaging process;

[0012] A control module, used to control the power of the ultrasonic detection module according to the clarity level of the image collected by the ultrasonic detection module; and adjust the power of the X-ray source module according to the similarity ratio of each area in the secondary image;

[0013] The data analysis module analyzes the initial image to obtain a clarity contrast difference, determines the clarity level of the initial image according to the clarity contrast difference, and determines whether to perform a secondary scan on the ultrasonic detection module according to the clarity level; based on the secondary scan, determines whether to adjust the power of the ultrasonic detection module according to the secondary scan result; obtains the secondary image similarity level according to the similarity comparison result between the secondary image and the preset standard image, and determines whether to perform regional analysis according to the secondary image similarity level; determines the regional similarity ratio based on the regional analysis result, and adjusts the power of the X-ray source module according to the regional similarity ratio.

[0014] Furthermore, the imaging module generates an initial image based on the data collected by the ultrasonic detection module, and the data analysis module compares the clarity of the standard image preset in the storage unit with the initial image to obtain a clarity contrast difference, and determines the clarity level of the initial image based on the clarity contrast difference.

[0015] Furthermore, when the initial image clarity difference is between the first image clarity difference and the second image clarity difference, the data analysis module determines that the ultrasonic detection module performs a secondary scan.

[0016] Furthermore, the data analysis module determines whether to adjust the power of the ultrasonic detection module through the control unit according to the difference between the clarity of the secondary image and the clarity of the standard image.

[0017] Furthermore, the data analysis module compares the adjusted secondary image with the standard image preset in the storage module, and grades the similarity of the secondary image according to the comparison result, and the similarity is graded into first level similarity, second level similarity and third level similarity.

[0018] Furthermore, the data analysis module determines whether to perform regional analysis according to the similarity level of the secondary image, and partitions the secondary image according to the determination result.

[0019] Furthermore, the power of the X-ray source module is initially adjusted according to the similarity ratio of each area.

[0020] Furthermore, the control unit determines the scanning time of the X-ray source module according to the similarity between the image formed by the power X-ray source module after the initial adjustment and the standard image.

[0021] Furthermore, the data analysis module generates an X-ray scanning evaluation value according to the similarity between the image formed by the X-ray source module and the standard image and the scanning time of the X-ray source module.

[0022] Furthermore, the data analysis module determines an X-ray scanning evaluation value for scanning according to a comparison result between the X-ray scanning evaluation value and a preset standard X-ray scanning evaluation value.

[0023] Compared with the prior art, the beneficial effect of the present invention lies in that the control module controls the ultrasonic detection module to scan, the imaging module collects the initial image, the data analysis module obtains the clarity comparison result by comparing the initial image with the standard image set in the storage unit, when the difference between the clarity of the standard image and the initial image is less than the difference between the clarity of the first image, the clarity of the initial image is the first-level clarity, and the clarity of the initial image meets the requirements, the data analysis module analyzes its content and makes a judgment to ensure that the clarity of the initial image can be used for image content analysis; when the difference between the clarity of the standard image and the initial image is greater than or equal to the difference between the clarity of the first image and less than the difference between the clarity of the second image, the clarity of the initial image is the second-level clarity, the control module controls the ultrasonic detection module to perform a second scan, and checks whether the difference between the clarity of the initial image and the standard image requires the power of the ultrasonic detection device to be adjusted to eliminate the clarity difference, so as to avoid deviations in subsequent analysis of its image content due to insufficient clarity of the initial image.

[0024] Furthermore, the data analysis module determines whether the ultrasonic detection module performs a secondary scan according to the clarity level of the initial image, and can eliminate the difference between the image clarity and the standard image clarity caused by non-device reasons. When the clarity level of the initial image is the first level, the ultrasonic detection module does not perform a secondary scan to avoid reducing the service life of the equipment due to the secondary scan, and can ensure that the preset image clarity is obtained; when the clarity level of the initial image is the second level, the ultrasonic detection module performs a secondary scan to obtain a secondary image, and the data analysis module determines the difference between the clarity of the secondary image and the standard image. If the difference between the clarity of the secondary image and the standard image is greater than or equal to zero and less than the clarity of the first image, the secondary image is scanned again. The clarity difference is determined by the ultrasonic detection module, and the data analysis module performs image content analysis on the secondary image. When the clarity of the initial image does not reach the preset clarity, the ultrasonic detection module performs a secondary scan, which can eliminate the poor clarity of the image caused by non-device reasons and ensure that a sufficiently clear image is obtained. When the clarity difference between the secondary image and the standard image is greater than or equal to the clarity difference between the first image and less than or equal to the clarity difference between the second image, the control module controls the power of the ultrasonic detection module to adjust the clarity. When the clarity of the secondary image still does not reach the preset clarity after the ultrasonic detection module performs the secondary scan, the data processing unit determines that the control unit controls the power of the ultrasonic detection module to adjust the clarity, so as to ensure that an image with clarity that meets the standard is obtained after three scans.

[0025] Furthermore, when the difference between the clarity of the secondary image and the clarity of the standard image is greater than or equal to the clarity difference of the first image and less than or equal to the clarity difference of the second image, the control unit controls the power of the ultrasonic detection module to increase, so as to ensure that the clarity of the scanned image meets the analysis standard of the data analysis module; if the power of the ultrasonic detection module after adjustment is greater than zero and less than or equal to the maximum power of the ultrasonic detection module, the power of the ultrasonic detection module after adjustment is selected as the scanning power for one scan, so as to ensure that the ultrasonic detection module scans within the normal use power range; if the power of the ultrasonic detection module after adjustment is less than or equal to the maximum power of the ultrasonic detection module, the maximum power of the ultrasonic detection module is selected as the scanning power for this scan, so as to avoid damage to the equipment and shorten the service life due to the power of the ultrasonic detection module exceeding the set maximum use power.

[0026] Furthermore, the data analysis module compares the similarity between the adjusted secondary image and the standard image preset in the storage module, and grades the similarity of the secondary image according to the comparison result. When the similarity between the secondary image and the standard image is less than or equal to the first-class image similarity, the similarity between the secondary image and the standard image is the first-class similarity, and the data analysis module does not perform regional analysis on the secondary image, which can ensure that the image content of the secondary image is basically consistent with the content of the standard image after analysis by the data analysis module, and no further analysis is required. If the similarity between the secondary image and the standard image is greater than the first-class image similarity and less than or equal to the second-class image similarity, the secondary image and the standard image are classified into the first-class similarity. If the image similarity is the second level similarity, the data analysis module performs regional analysis on the secondary image. When the similarity between the secondary image and the standard image is the second level similarity, it means that some content in the secondary image does not match the standard image, and a more detailed regional analysis is required to ensure the authenticity of the secondary image content. If the similarity between the secondary image and the standard image is greater than the second-level image similarity, the similarity between the secondary image and the standard image is the third level similarity, and the data analysis module determines the content of the secondary image. When the image similarity is the third level similarity, it means that the image and the standard image have a large content gap and poor comparability, and the data analysis module can directly analyze its image content.

[0027] Furthermore, the data analysis module determines whether to perform regional analysis based on the similarity level of the secondary image, so as to better compare the image with the standard image, and confirm the ratio of the partitioned areas with different similarities to the standard image, so as to avoid re-scanning different partitioned areas with the same X-ray source module power. If the ratio of the areas with different similarities in the partitioned areas to the secondary image is greater than or equal to the ratio of the first area and less than the ratio of the second area, the control module controls the X-ray source module to use the first power to scan again, so as to avoid using too high X-ray source module power due to too low ratio of the areas with different similarities in the partitioned areas, resulting in energy waste. If the ratio of the areas with different similarities in the partitioned areas to the secondary image is greater than the ratio of the second area, the control module controls the X-ray source module to use the second power to scan again, so as to ensure that when the proportion of the partitioned areas to the standard image is too high, the image is clearer when the X-ray source module rescans.

[0028] Furthermore, the control unit adjusts the scanning time of the X-ray source module according to the similarity between the image formed by the power X-ray source module after the initial adjustment and the standard image, so as to ensure that when the image formed by the power X-ray source module after the initial adjustment has a low similarity with the standard image, a longer scanning time of the X-ray source module is required for scanning, thereby ensuring the accuracy of the scanning; and when the image formed by the power X-ray source module after the initial adjustment has a high similarity with the standard image, a shorter scanning time of the X-ray source module is required for scanning, thereby avoiding the X-ray source module from working for a long time, thereby shortening its service life.

[0029] Furthermore, the data analysis module determines an X-ray scanning evaluation value for scanning based on a comparison result between the X-ray scanning evaluation value and a preset standard X-ray scanning evaluation value; if the X-ray scanning evaluation value is less than the first X-ray scanning evaluation value, the first X-ray scanning evaluation value is selected as the scanning evaluation value to avoid the inability to guarantee the scanning result due to the scanning evaluation value being too small; if the X-ray scanning evaluation value is greater than the second X-ray scanning evaluation value, the second X-ray scanning evaluation value is selected as the scanning evaluation value to avoid the X-ray source module using a higher scanning evaluation value and causing equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of a multimodal imaging device based on a cold cathode in this embodiment;

[0031] Figure 2 is a flow chart of the secondary scanning process of the multi-modal imaging device based on the cold cathode in this embodiment;

[0032] Figure 3 is a flow chart of image clarity determination of a multi-modal imaging device based on a cold cathode in this embodiment;

[0033] Figure 4 FIG. 4 is a flowchart of image similarity determination of a multi-modal imaging device based on a cold cathode in this embodiment. DETAILED DESCRIPTION

[0034] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0036] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0037] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] See also Figure 1 - Figure 4 As shown, Figure 1 is a schematic structural diagram of a multimodal imaging device based on a cold cathode in this embodiment; Figure 2 is a flow chart of the secondary scanning process of the multi-modal imaging device based on the cold cathode in this embodiment; Figure 3 is a flow chart of image clarity determination of a multi-modal imaging device based on a cold cathode in this embodiment; Figure 4 FIG. 4 is a flowchart of image similarity determination of a multi-modal imaging device based on a cold cathode in this embodiment.

[0039] This embodiment provides a multi-modal imaging device based on a cold cathode, comprising:

[0040] An X-ray source module, used for generating X-rays, wherein the X-rays can penetrate the target tissue, so as to be used for imaging the target tissue;

[0041] CT detection module, used to detect X-rays passing through target tissue and convert them into electrical signals;

[0042] An ultrasonic detection module, used to assist the CT detection module in image acquisition;

[0043] An imaging module, used for processing the image data collected by the CT detection module and the ultrasound detection module to display them as visual images;

[0044] A storage module, used for storing standard parameters and standard image during the imaging process;

[0045] A control module, used to control the power of the ultrasonic detection module according to the clarity level of the image collected by the ultrasonic detection module; and adjust the power of the X-ray source module according to the similarity ratio of each area in the secondary image;

[0046] The data analysis module analyzes the initial image to obtain a clarity contrast difference, determines the clarity level of the initial image according to the clarity contrast difference, and determines whether to perform a secondary scan on the ultrasonic detection module according to the clarity level; based on the secondary scan, determines whether to adjust the power of the ultrasonic detection module according to the secondary scan result; obtains the secondary image similarity level according to the similarity comparison result between the secondary image and the preset standard image, and determines whether to perform regional analysis according to the secondary image similarity level; determines the regional similarity ratio based on the regional analysis result, and adjusts the power of the X-ray source module according to the regional similarity ratio.

[0047] This embodiment provides an operation flow of a multi-modal imaging device based on a cold cathode, comprising the following steps:

[0048] Step S101, the ultrasonic detection module performs an initial scan to obtain initial image data;

[0049] Step S102, the imaging module performs initial image imaging according to the initial image data;

[0050] Step S103, the CT detection module performs CT scanning according to the clarity of the initial image;

[0051] Step S104: the data analysis module analyzes the clarity of the initial image to obtain the clarity level of the initial image, and determines whether the ultrasonic detection module should perform a second scan according to the clarity level of the initial image.

[0052] Specifically, the imaging module generates an initial image based on the data collected by the ultrasonic detection module, and the data analysis module compares the clarity of the standard image preset in the storage unit with the initial image to obtain a clarity comparison difference, and determines the clarity level of the initial image based on the clarity comparison difference.

[0053] The imaging module generates an initial image according to the data collected by the ultrasonic detection module, and the data analysis module analyzes the initial image clarity of the initial image as Qa.

[0054] The storage module sets the standard image definition to Qb.

[0055] The data analysis module sets the first image clarity difference Q1 and the second image clarity difference Q2,

[0056] If the difference Qa-Qb between the standard image clarity and the initial image clarity is greater than or equal to zero and less than the first image clarity difference Q1, the initial image clarity is the first-level clarity, and the data analysis module performs image content analysis on the initial image;

[0057] If the difference Qa-Qb between the standard image clarity and the initial image clarity is greater than or equal to the first image clarity difference and less than or equal to the second image clarity difference Q2, the initial image clarity is secondary clarity, and the control module controls the ultrasonic detection module to perform a secondary scan.

[0058] The control module controls the ultrasonic detection module to scan, and the imaging module collects the initial image. The data analysis module obtains the clarity comparison result by comparing the initial image with the standard image set in the storage unit. When the difference between the clarity of the standard image and the initial image is less than the clarity difference of the first image, the clarity of the initial image is the first-level clarity, and the clarity of the initial image meets the requirements. The data analysis module analyzes its content and makes a judgment to ensure that the clarity of the initial image can be used for image content analysis; when the difference between the clarity of the standard image and the initial image is greater than or equal to the clarity difference of the first image and less than the clarity difference of the second image, the clarity of the initial image is the second-level clarity, and the control module controls the ultrasonic detection module to perform a second scan to check whether the difference between the clarity of the initial image and the standard image requires the power of the ultrasonic detection device to be adjusted to eliminate the clarity difference, so as to avoid deviations in the subsequent analysis of its image content due to insufficient clarity of the initial image.

[0059] Specifically, when the initial image clarity difference is between the first image clarity difference and the second image clarity difference, the data analysis module determines that the ultrasound detection module performs a second scan.

[0060] When the initial image clarity level is level one, the ultrasonic detection module does not perform a secondary scan;

[0061] When the initial image clarity level is level 2, the ultrasonic detection module performs a secondary scan to obtain a secondary image, and the data analysis module determines the difference between the secondary image clarity and the standard image clarity.

[0062] If the difference between the clarity of the secondary image and the clarity of the standard image is greater than or equal to zero and less than the clarity difference of the first image, the data analysis module performs image content analysis on the secondary image;

[0063] If the difference between the secondary image clarity and the standard image clarity is greater than or equal to the first image clarity difference and less than or equal to the second image clarity difference, the control module controls the power of the ultrasonic detection module to adjust.

[0064] The data analysis module determines whether the ultrasonic detection module performs a secondary scan according to the clarity level of the initial image, and can eliminate the difference between the image clarity and the standard image clarity caused by non-device reasons. When the clarity level of the initial image is the first level, the ultrasonic detection module does not perform a secondary scan to avoid reducing the service life of the equipment due to the secondary scan, and can ensure that the preset image clarity is obtained; when the clarity level of the initial image is the second level, the ultrasonic detection module performs a secondary scan to obtain a secondary image, and the data analysis module determines the difference between the clarity of the secondary image and the standard image. If the difference between the clarity of the secondary image and the standard image is greater than or equal to zero and less than the clarity of the first image, the data analysis module determines the difference between the clarity of the secondary image and the standard image. The difference is that the data analysis module performs image content analysis on the secondary image. When the clarity of the initial image does not reach the preset clarity, the ultrasonic detection module performs a secondary scan, which can eliminate the poor clarity of the image caused by non-device reasons and ensure that a sufficiently clear image is obtained. When the clarity difference between the secondary image and the standard image is greater than or equal to the clarity difference between the first image and less than or equal to the clarity difference between the second image, the control module controls the power of the ultrasonic detection module to adjust the clarity. When the clarity of the secondary image still does not reach the preset clarity after the ultrasonic detection module scans twice, the data processing unit determines that the control unit controls the power of the ultrasonic detection module to adjust the clarity to ensure that an image with clarity that meets the standard is obtained after three scans.

[0065] Specifically, the data analysis module determines whether to adjust the power of the ultrasonic detection module through the control unit according to the difference between the clarity of the secondary image and the clarity of the standard image.

[0066] The storage unit is provided with the ultrasonic detection module initial power Wa, the ultrasonic detection module maximum power Wb,

[0067] When the difference between the secondary image clarity Qc1 and the standard image clarity Qb is greater than or equal to the first image clarity difference and less than or equal to the second image clarity difference, the data analysis module analyzes the difference between the secondary image clarity and the initial image clarity.

[0068] The control unit adjusts the power of the ultrasonic detection module according to the analysis result.

[0069] The power of the ultrasonic detection module after adjustment is Wa1, Wa1=Wa+(Qb-Qc1)×e1, where e1 is the compensation parameter for the influence of the difference between the secondary image clarity and the standard image clarity on the power of the ultrasonic detection module after adjustment,

[0070] If the adjusted ultrasonic detection module power Wa1 is greater than zero and less than or equal to the maximum ultrasonic detection module power Wb, the adjusted ultrasonic detection module power Wa1 is selected as the scanning power for one scan;

[0071] If the adjusted ultrasonic detection module power Wa1 is less than or equal to the ultrasonic detection module maximum power Wb, the ultrasonic detection module maximum power Wb is selected as the scanning power for one scan.

[0072] When the difference between the clarity of the secondary image and the clarity of the standard image is greater than or equal to the clarity difference of the first image and less than or equal to the clarity difference of the second image, the control unit controls the power of the ultrasonic detection module to increase, so as to ensure that the clarity of the scanned image meets the analysis standard of the data analysis module; if the power of the ultrasonic detection module after adjustment is greater than zero and less than or equal to the maximum power of the ultrasonic detection module, the power of the ultrasonic detection module after adjustment is selected as the scanning power for one scan, so as to ensure that the ultrasonic detection module scans within the normal power range; if the power of the ultrasonic detection module after adjustment is less than or equal to the maximum power of the ultrasonic detection module, the maximum power of the ultrasonic detection module is selected as the scanning power for this scan, so as to avoid damage to the equipment and shorten the service life due to the power of the ultrasonic detection module exceeding the set maximum power.

[0073] Specifically, the data analysis module compares the adjusted secondary image with the standard image preset in the storage module, and grades the similarity of the secondary image according to the comparison result, wherein the similarity is graded into first level similarity, second level similarity and third level similarity.

[0074] The storage unit is provided with a first-class image similarity L1, a second-class image similarity L2,

[0075] The data analysis module analyzes the similarity between the secondary image and the standard image preset in the storage module to obtain the similarity La between the secondary image and the standard image.

[0076] If the similarity La between the secondary image and the standard image is less than or equal to the first-level image similarity L1, the similarity between the secondary image and the standard image is the first-level similarity, and the data analysis module does not perform regional analysis on the secondary image;

[0077] If the similarity La between the secondary image and the standard image is greater than the similarity L1 of the first-class image and less than or equal to the similarity L2 of the second-class image, the similarity between the secondary image and the standard image is the second-level similarity, and the data analysis module performs regional analysis on the secondary image;

[0078] If the similarity La between the secondary image and the standard image is greater than the second-level image similarity L2, the similarity between the secondary image and the standard image is the third-level similarity, and the data analysis module determines the content of the secondary image.

[0079] The data analysis module compares the similarity between the adjusted secondary image and the standard image preset in the storage module, and grades the similarity of the secondary image according to the comparison result. When the similarity between the secondary image and the standard image is less than or equal to the first-class image similarity, the similarity between the secondary image and the standard image is the first-class similarity, and the data analysis module does not perform regional analysis on the secondary image, which can ensure that the image content of the secondary image is basically consistent with the content of the standard image after analysis by the data analysis module, and no further analysis is required. If the similarity between the secondary image and the standard image is greater than the first-class image similarity and less than or equal to the second-class image similarity, the secondary image and the standard image are similar. If the similarity is the second level similarity, the data analysis module performs regional analysis on the secondary image. When the similarity between the secondary image and the standard image is the second level similarity, it means that some content in the secondary image does not match the standard image, and a more detailed regional analysis is required to ensure the authenticity of the secondary image content. If the similarity between the secondary image and the standard image is greater than the second-level image similarity, the similarity between the secondary image and the standard image is the third level similarity, and the data analysis module determines the content of the secondary image. When the image similarity is the third level similarity, it means that the image content is quite different from the standard image content and the comparability is poor, and the data analysis module can directly analyze its image content.

[0080] Specifically, the data analysis module determines whether to perform regional analysis according to the similarity level of the secondary image, and partitions the secondary image according to the determination result.

[0081] Specifically, the power of different pairs of X-ray source modules is initially adjusted according to the similarity ratio of each area.

[0082] When the similarity La between the secondary image and the standard image is greater than the similarity L1 of the first-class image and less than or equal to the similarity L2 of the second-class image, the analysis unit obtains the secondary image and the standard image respectively, and performs partition area analysis on them respectively, and the partition areas are sorted from right to left first and then from top to bottom.

[0083] The secondary image partition areas are: the first partition area is A1, the second partition area is A2, ..., the nth partition area is An,

[0084] The standard image partition areas are: the first standard partition area is B1, the second standard partition area is B2, ..., the nth standard partition area is Bn,

[0085] The data analysis module obtains any partition area Ai and any standard partition area Bi, i = 1, 2, 3, ..., n,

[0086] Any partition area Ai is compared with any corresponding standard partition area Bi.

[0087] The storage unit is provided with a first area ratio H1, a second area ratio H2,

[0088] Any partition area Ai is compared with any corresponding standard partition area Bi, and the proportion of the area with different similarity in the partition area image to the secondary image image is Ha.

[0089] If the proportion Ha of the areas with different similarities in the secondary image is less than the proportion H1 of the first area, the data analysis module analyzes the content of the images in each partition area;

[0090] If the proportion Ha of the regions with different similarities in the partitioned region images to the secondary image is greater than or equal to the first region proportion H1 and less than the second region proportion H2, the control module controls the X-ray source module to scan with the first power;

[0091] If the proportion Ha of the regions with different image similarities in the partitioned regions to the secondary image is greater than the second region proportion H2, the control module controls the X-ray source module to scan with the second power.

[0092] The data analysis module determines whether to perform regional analysis based on the similarity level of the secondary image, and can better compare the image image with the standard image, and confirm the ratio of the partitioned areas with different similarities to the standard image, so as to avoid scanning different partitioned areas with the same X-ray source module power. If the ratio of the areas with different similarities in the partitioned areas to the secondary image is greater than or equal to the ratio of the first area and less than the ratio of the second area, the control module controls the X-ray source module to scan with the first power, which can avoid using too high X-ray source module power due to too low ratio of the areas with different similarities in the partitioned areas, resulting in energy waste; if the ratio of the areas with different similarities in the partitioned areas to the secondary image is greater than the ratio of the second area, the control module controls the X-ray source module to scan with the second power, which can ensure that when the proportion of the partitioned areas to the standard image is too high, the image is clearer when the X-ray source module rescans.

[0093] Specifically, the control unit determines the scanning time of the X-ray source module according to the similarity between the image formed by the power X-ray source module after the initial adjustment and the standard image.

[0094] Specifically, the data analysis module generates an X-ray initial scanning evaluation value according to the similarity between the image formed by the X-ray source module and the standard image and the scanning time of the X-ray source module.

[0095] Specifically, the data analysis module determines the X-ray preferred scanning evaluation value for scanning according to the comparison result between the X-ray initial scanning evaluation value and the preset standard X-ray scanning evaluation value.

[0096] The similarity between the image formed by the control unit according to the power X-ray source module after the initial adjustment and the standard image is Lc,

[0097] X-ray source module scanning time Ta = P / Lc × e2, where P is a proportional constant and e2 is a compensation parameter for the effect of the similarity between the image formed by the power X-ray source module after initial adjustment and the standard image on the scanning time of the X-ray source module;

[0098] The initial X-ray scan evaluation value Fs, Fs = Lc × j1 + Ta × j2 + Fs1, where j1 is the compensation parameter for the influence of the similarity between the image formed by the power X-ray source module after the initial adjustment and the standard image on the X-ray scan evaluation value; j2 is the compensation parameter for the influence of the scanning time of the X-ray source module on the X-ray scan evaluation value,

[0099] The storage unit is provided with a first X-ray scanning evaluation value F1, a second X-ray scanning evaluation value F2,

[0100] If the initial X-ray scan evaluation value Fs is less than the first X-ray scan evaluation value F1, the first X-ray scan evaluation value F1 is selected as the preferred scan evaluation value;

[0101] If the X-ray scanning evaluation value Fs is greater than or equal to the first X-ray scanning evaluation value F1 and less than the second X-ray scanning evaluation value F2, the X-ray scanning evaluation value Fs is selected as the scanning evaluation value;

[0102] If the initial X-ray scan evaluation value Fs is greater than the second X-ray scan evaluation value F2, the second X-ray scan evaluation value F2 is selected as the preferred scan evaluation value.

[0103] The control unit adjusts the scanning time of the X-ray source module according to the similarity between the image image formed by the power X-ray source module after the initial adjustment and the standard image image, so as to ensure that when the image image formed by the power X-ray source module after the initial adjustment and the standard image image have low similarity, a longer scanning time of the X-ray source module is required for scanning, thereby ensuring the accuracy of the scanning; when the image image formed by the power X-ray source module after the initial adjustment and the standard image image have high similarity, a shorter scanning time of the X-ray source module is required for scanning, thereby avoiding the X-ray source module from working for a long time, thereby shortening its service life.

[0104] The data analysis module determines the preferred X-ray scanning evaluation value for scanning based on the comparison result between the initial X-ray scanning evaluation value and the preset standard X-ray scanning evaluation value. If the initial X-ray scanning evaluation value is less than the first X-ray scanning evaluation value, the first X-ray scanning evaluation value is selected as the preferred scanning evaluation value to avoid the inability to guarantee the scanning result due to the scanning evaluation value being too small; if the initial X-ray scanning evaluation value is greater than the second X-ray scanning evaluation value, the second X-ray scanning evaluation value is selected as the preferred scanning evaluation value to avoid the X-ray source module using a higher scanning evaluation value to cause equipment damage.

[0105] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0106] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multimodal imaging device based on a cold cathode, characterized in that: include, An X-ray source module, used for generating X-rays, wherein the X-rays can penetrate the target tissue, so as to be used for imaging the target tissue; CT detection module, used to detect X-rays passing through target tissue and convert them into electrical signals; An ultrasonic detection module, used to assist the CT detection module in image acquisition; An imaging module, used for processing the image data collected by the CT detection module and the ultrasound detection module to display them as visual images; A storage module, used for storing standard parameters and standard image during the imaging process; A control module, used to control the power of the ultrasonic detection module according to the clarity level of the image collected by the ultrasonic detection module; and adjust the power of the X-ray source module according to the similarity ratio of each area in the secondary image; The data analysis module analyzes the initial image to obtain a clarity contrast difference, determines the clarity level of the initial image according to the clarity contrast difference, and determines whether to perform a secondary scan on the ultrasonic detection module according to the clarity level; based on the secondary scan, determines whether to adjust the power of the ultrasonic detection module according to the secondary scan result; obtains the secondary image similarity level according to the similarity comparison result between the secondary image and the preset standard image, and determines whether to perform regional analysis according to the secondary image similarity level; determines the regional similarity ratio based on the regional analysis result, and adjusts the power of the X-ray source module according to the regional similarity ratio.

2. The cold cathode based multimodal imaging device according to claim 1, characterized in that: The imaging module generates an initial image according to the data collected by the ultrasonic detection module, and the data analysis module compares the clarity of the standard image preset in the storage unit with the initial image to obtain a clarity comparison difference, and determines the clarity level of the initial image according to the clarity comparison difference.

3. The cold cathode based multimodal imaging device according to claim 2, characterized in that: When the initial image clarity difference is between the first image clarity difference and the second image clarity difference, the data analysis module determines that the ultrasonic detection module performs a second scan.

4. The cold cathode based multimodal imaging device according to claim 3, characterized in that: The data analysis module determines whether to adjust the power of the ultrasonic detection module through the control unit according to the difference between the clarity of the secondary image and the clarity of the standard image.

5. The cold cathode based multimodal imaging device according to claim 4, characterized in that: The data analysis module compares the adjusted secondary image with the standard image preset in the storage module, and grades the similarity of the secondary image according to the comparison result, wherein the similarity is graded into first level similarity, second level similarity and third level similarity.

6. The cold cathode based multimodal imaging device according to claim 5, characterized in that: The data analysis module determines whether to perform regional analysis according to the similarity level of the secondary images, and partitions the secondary images according to the determination result.

7. The cold cathode based multimodal imaging device according to claim 6, characterized in that: The power of the X-ray source module is initially adjusted according to the similarity ratio of each area.

8. The cold cathode based multimodal imaging device according to claim 7, characterized in that: The control unit determines the scanning time of the X-ray source module according to the similarity between the image formed by the power X-ray source module after the initial adjustment and the standard image.

9. The cold cathode based multimodal imaging device according to claim 8, characterized in that: The data analysis module generates an X-ray initial scanning evaluation value according to the similarity between the image formed by the X-ray source module and the standard image and the scanning time of the X-ray source module.

10. The cold cathode based multimodal imaging device according to claim 9, characterized in that: The data analysis module determines an X-ray preferred scanning evaluation value for scanning according to a comparison result between the X-ray initial scanning evaluation value and a preset standard X-ray scanning evaluation value.

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