CN111000576A - Image display method, device, equipment and storage medium of X-ray imaging system - Google Patents
Image display method, device, equipment and storage medium of X-ray imaging system Download PDFInfo
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- CN111000576A CN111000576A CN201911338883.6A CN201911338883A CN111000576A CN 111000576 A CN111000576 A CN 111000576A CN 201911338883 A CN201911338883 A CN 201911338883A CN 111000576 A CN111000576 A CN 111000576A
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- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/46—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with special arrangements for interfacing with the operator or the patient
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Abstract
The invention discloses an image display method, an image display device, image display equipment and a storage medium of a digital X-ray imaging system. An image display method of a digital X-ray imaging system, comprising: obtaining a measured distance, comprising: acquiring any two or three of the distance between an object to be imaged and an imaging surface of the flat panel detector, the distance between a radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged; according to the measurement distance, determining the magnification ratio of an imaging target of the object to be imaged in an imaging target image acquired based on the digital X-ray imaging system; and determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the pixel number of the imaging target and the magnification ratio, and displaying the actual size on the imaging target image. The technical scheme of the embodiment of the invention realizes the automatic measurement and display of the imaging target, reduces the workload of operators, reduces the equipment cost and simultaneously improves the accuracy and consistency of tissue measurement.
Description
Technical Field
The embodiment of the invention relates to the technical field of digital radiation imaging, in particular to a method, a device, equipment and a storage medium for measuring a tissue of a digital radiation imaging system.
Background
In the field of digital radiography, information such as the length, width, and area of an imaging target has important clinical diagnostic significance. In order to obtain a measurement result, a physical ruler is usually introduced in the conventional method, the physical ruler and a part to be imaged are shot at the same time, and when a tissue is measured in an acquired image, the length and width information of the tissue is obtained by observing through human eyes by taking the physical ruler in the image as a reference.
The traditional measuring method is often limited by the parallelism of the physical ruler and the part to be imaged, the error observed by human eyes is large, the results obtained by different people are different, and accurate and consistent measuring results cannot be obtained.
Disclosure of Invention
The embodiment of the invention provides an image display method, device, equipment and storage medium of a digital X-ray imaging system, which are used for realizing automatic measurement and display of an imaging target, have high accuracy and good consistency of measurement results, reduce labor cost and equipment cost and improve working efficiency.
In a first aspect, an embodiment of the present invention provides an image display method for a digital X-ray imaging system, where the image display method for the digital X-ray imaging system includes:
obtaining a measured distance, comprising:
acquiring any two or three of the distance between an object to be imaged and an imaging surface of a flat panel detector, the distance between a radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged;
according to the measurement distance, determining the magnification ratio of an imaging target of the object to be imaged in an imaging target image acquired based on the digital X-ray imaging system;
and determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the pixel number of the imaging target and the magnification ratio, and displaying the actual size on the imaging target image.
In a second aspect, an embodiment of the present invention further provides an image display method of a digital X-ray imaging system, where the image display method of the digital X-ray imaging system includes:
obtaining a digital X-ray image of an object to be imaged;
selecting a target range of the digital X-ray image;
calculating the actual size of the target range, wherein the method for calculating the actual size may be a method for determining the actual size in the image display method of the digital X-ray imaging system provided by any embodiment of the present invention;
and displaying the actual size.
In a third aspect, an embodiment of the present invention further provides an image display method for a digital X-ray imaging system, where the image display method for the digital X-ray imaging system includes:
obtaining a digital X-ray image of an object to be imaged;
calculating the actual size in the predetermined range of the digital X-ray image, wherein the method for calculating the actual size can be a method for determining the actual size in the image display method of the digital X-ray imaging system provided by any embodiment of the invention;
displaying the actual size on the digital X-ray image.
In a fourth aspect, an embodiment of the present invention further provides an image display apparatus of a digital X-ray imaging system, where the image display apparatus of the digital X-ray imaging system includes:
a measured distance acquisition module for acquiring a measured distance, comprising:
acquiring any two or three of the distance between an object to be imaged and an imaging surface of a flat panel detector, the distance between a radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged;
the magnification ratio determining module is used for determining the magnification ratio of the imaging target of the object to be imaged in the imaging target image acquired based on the digital radiation imaging system according to the measuring distance;
and the actual size determining and displaying module is used for determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target and the magnification ratio, and displaying the actual size on the imaging target image.
In a fifth aspect, embodiments of the present invention also provide an image display apparatus, including,
one or more processors;
a memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the image display method of the digital X-ray imaging system provided by any embodiment of the present invention.
In a sixth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the image display method of the digital X-ray imaging system provided in any embodiment of the present invention.
According to the technical scheme of the embodiment of the invention, the actual size of the imaging target can be automatically determined by determining the amplification ratio of the imaging target of the object to be imaged in the imaging target image acquired based on the digital radiation imaging system, the size of the pixel unit on the imaging target image and the number of pixels of the imaging target, so that the technical problems of large measurement result error and high operation cost caused by dependence on human intervention in the conventional tissue measurement method are solved, and meanwhile, the equipment cost is reduced because extra equipment is not required for measurement. The method has the advantages of achieving the effects of scientific measurement of tissue size, high accuracy of measurement results and good consistency, improving the working efficiency and reducing the operation cost.
Drawings
FIG. 1 is a flowchart of an image display method of a digital X-ray imaging system according to a first embodiment of the present invention;
FIG. 1A is a schematic diagram of a digital X-ray imaging system in accordance with one embodiment of the present invention;
FIG. 2 is a flowchart of an image displaying method of a digital X-ray imaging system according to a second embodiment of the present invention;
FIG. 3 is a flowchart of an image displaying method of a digital X-ray imaging system according to a third embodiment of the present invention;
FIG. 4 is a flowchart of an image display method of a digital X-ray imaging system according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an image display device of a digital X-ray imaging system according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an image display apparatus in a sixth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of an image display method of a digital X-ray imaging system according to an embodiment of the present invention, where this embodiment is applicable to a case of image display of the digital X-ray imaging system, and the method may be executed by an image display device of the digital X-ray imaging system, and specifically includes the following steps:
and acquiring any two or three of the distance between an object to be imaged and an imaging surface of the flat panel detector, the distance between the radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged.
The distance measurement can be the distance measurement is the distance between the object to be imaged and the imaging surface of the flat panel detector and the distance between the radioactive source and the imaging surface of the flat panel detector, and can also be the distance measurement is the distance between the object to be imaged and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged, and can also be the distance between the radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged, and can also be the distance between the object to be imaged and the imaging surface of the flat panel detector, the distance between the radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged.
In the embodiment of the present invention, a distance between the object to be imaged and the imaging surface of the flat panel detector may be a shortest distance, that is, a vertical distance, between a key point of the object to be imaged and the imaging surface of the flat panel detector. The imaging surface of the flat panel detector may be a plane used by the flat panel detector to generate an image, and the key point may be a point specified by a person, a certain point on an outer surface of an imaging target of an imaging object, or a center of a stereoscopic image where the imaging target of the imaging object is located. Optionally, the distance between the object to be imaged and the imaging plane of the flat panel detector is used as an imaging distance, and the method includes: the distance between the imaging target of the object to be imaged and the outer cover of the flat panel detector and the distance between the outer cover of the flat panel detector and the imaging surface of the flat panel detector.
For example, if the object to be imaged is a leg of a human body and the imaging target is a leg bone of the leg, the key point of the imaging target may be a geometric center of the leg bone or a geometric center of an outer surface of the leg bone.
Optionally, obtaining the measurement distance is a distance between an object to be imaged and an imaging surface of the flat panel detector, and includes: acquiring the distance between the object to be imaged and the imaging surface of the flat panel detector through manual operation; or, measuring the distance between the object to be imaged and the imaging surface of the flat panel detector by a distance sensor (for example, an infrared distance meter).
Optionally, if the distance between the imaging target of the object to be imaged and the outer cover of the flat panel detector is D1, and the distance between the outer cover of the flat panel detector and the imaging plane of the flat panel detector is D2, the distance between the object to be imaged and the imaging plane of the flat panel detector is the sum of D1 and D2.
In particular, the obtaining of the measured distance is carried out by an image capturing unit comprising a camera or a video recorder.
And step 120, determining the magnification ratio of the imaging target of the object to be imaged in the imaging target image acquired based on the digital X-ray imaging system according to the measurement distance.
The distance between the radioactive source and the imaging surface of the flat panel detector refers to the vertical distance between the geometric center of the radioactive source and the geometric center of the imaging surface of the flat panel detector. The imaging target image refers to an image generated by the imaging target under the action of a digital radiation system, and for example, if the imaging target is a chest, the imaging target image is a chest film; if the imaging target is a leg bone, the imaging target image refers to a digital image of the leg bone generated after rays of a radioactive source pass through the leg bone and are collected by a flat panel detector.
Optionally, the imaging target image includes a single frame image or a stitched image of the imaging target, and the stitched image refers to an image formed by stitching two or more frames of images along a certain specific direction.
For example, fig. 1A is a schematic diagram of a digital radiography system according to a first embodiment of the present invention, as shown in fig. 1A, a distance between a radiation source 121 and a flat panel detector imaging surface 124 is SID, a distance between an imaging target 122 of an object to be imaged and a flat panel detector housing 123 is D1, a distance between the flat panel detector housing 123 and the flat panel detector imaging surface 124 is D2, then a distance TOD between the imaging target 122 of the object to be imaged and the flat panel detector imaging surface 124 may be represented as: TOD-D1 + D2. The magnification ratio f of the imaging target 122 of the object to be imaged in the imaging target image acquired based on the digital radiography system can be expressed as: and f is SID/(SID-TOD).
Wherein the actual size includes length, width, perimeter, area, etc. The size of a pixel unit on the target image refers to the length, width or area of one pixel on the target image. The number of pixels of the imaging target refers to the number of pixels included or occupied by the imaging target.
For example, if the magnification ratio is f, the length of a pixel unit on the target image is u, and the imaging target includes N pixel units in the length direction, the actual length of the imaging target is u × N/f. Similarly, the actual width, perimeter, and area of the imaging target may also be obtained.
Optionally, the determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, and the magnification ratio includes: and determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio and the received selected operation input by the user.
The selection operation input by the user may be that the user selects a certain area, or the user clicks a certain area, or the user inputs a certain number of measurement points, such as one, two, three, or even more.
For example, taking an imaging target as a femur as an example, it is necessary to acquire the number of pixels occupied by the femur on an image, such as 500 pixels, and acquire an actual physical size represented by a pixel unit on the image, such as 139 micrometers, according to the performance of the flat panel detector, and further determine a magnification ratio of the image according to the measured distance, so that the actual size of the imaging target can be determined by multiplying the actual physical size by the number of pixels and then dividing by the magnification ratio.
Optionally, the determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio, and the received operation selected by the user input includes:
determining at least one closed curve or non-closed curve according to a selected operation of the received user input, the operation being performed on the image,
determining the length or the width of the imaging target according to the size of a pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio and the straight line or the non-closed curve; and/or, determining at least one closed curve based on a selected operation of the received user input,
and determining the area of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio and the closed curve.
Wherein the length is convertible to a width by adjusting the direction. Non-closed curves include straight lines, arcs, and the like.
The determining at least one closed curve or non-closed curve, and the determining at least one closed curve may be set according to a set rule, for example, according to linear fitting, circular approximation, least square algorithm, optimal algorithm, or simply according to a user click sequence, and the like, which is not limited in the embodiments of the present invention.
Illustratively, a straight line is determined according to at least two measuring points of received user input, the straight line can be determined by a linear fitting method and the like, and the length of the imaging target is determined according to the size of a pixel unit on the imaging target image, the magnification ratio and the length of the straight line.
For example, a non-closed curve is determined according to at least two measurement points received from a user, and the determination of the non-closed curve may be implemented by any existing algorithm or manner, such as determining according to a user click sequence, or selecting an appropriate sequence and measurement points according to a set rule, and then determining the length of the imaging target according to the size of a pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio, and the length of the non-closed curve.
For example, a closed curve is determined according to at least three measurement points received from a user, and the determination of the closed curve may be implemented by any existing algorithm or manner, such as finding a circle closest to the measurement points, generating the closed curve according to a user click sequence, or selecting an optimized measurement point according to a set rule to determine the closed curve, and then determining the area of the imaging target according to the size of a pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio, and the area of the closed curve.
According to the technical scheme of the embodiment of the invention, the actual size of the imaging target can be automatically determined by determining the amplification ratio of the imaging target of the object to be imaged in the imaging target image acquired based on the digital radiation imaging system, the size of the pixel unit on the imaging target image and the number of pixels of the imaging target, so that the technical problems of large measurement result error and high operation cost caused by dependence on human intervention in the existing tissue measurement method are solved, and meanwhile, the equipment cost is reduced because extra equipment is not required for measurement. The method has the advantages of achieving the effects of scientific measurement of tissue size, high accuracy of measurement results and good consistency, improving the working efficiency and reducing the operation cost.
Example two
Fig. 2 is a flowchart of an image display method of a digital X-ray imaging system according to a second embodiment of the present invention, where the technical solution of this embodiment is further refined based on the above technical solution, and optionally, the image display method of the digital X-ray imaging system according to the second embodiment of the present invention further includes: and determining a graduated scale according to the size of the pixel unit on the imaging target image and the magnification ratio, and displaying the graduated scale on the imaging target image.
As shown in fig. 2, the method of the present embodiment includes:
and acquiring any two or three of the distance between an object to be imaged and an imaging surface of the flat panel detector, the distance between the radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged.
And step 220, determining the magnification ratio of the imaging target of the object to be imaged in the imaging target image acquired based on the digital X-ray imaging system according to the measurement distance.
And 240, determining a graduated scale according to the size of the pixel unit on the imaging target image and the magnification ratio, and displaying the graduated scale on the imaging target image.
Wherein the scale marks the actual physical length.
Alternatively, the graduated scale may be placed at any position of the imaging target image, at the leftmost side, rightmost side, uppermost side, lowermost side, or at a position designated by a user of the imaging target image. A default position of the graduated scale, such as the leftmost side of the target image, may also be set.
Optionally, when the target image is a stitched image, the graduated scale is placed at any position of the stitched image, such as the leftmost side, the rightmost side, the uppermost side, the lowermost side, or a position designated by a user. A default position of the graduated scale, such as the leftmost side of the stitched image, may also be set.
Optionally, when a movement instruction for moving the graduated scale input by a user is received, the graduated scale is moved to a target position according to the movement instruction. Illustratively, the moving instruction includes dragging the graduated scale or the like, or triggering the graduated scale to start moving by clicking (clicking or double clicking, etc.) the graduated scale, and determining the target position of the graduated scale when clicking (clicking or double clicking, etc.) the graduated scale again.
According to the technical scheme of the embodiment of the invention, the scale is added on the imaging target image, so that the size information of the imaging target can be quickly and intuitively obtained, a doctor and an operator can conveniently and quickly master the size information of the imaging target, another tissue measurement mode is provided, and more choices are provided for the doctor and the operator.
EXAMPLE III
Fig. 3 is a flowchart of an image display method of a digital X-ray imaging system according to a third embodiment of the present invention, where this embodiment is applicable to a case of image display of the digital X-ray imaging system, and the method may be executed by an image display apparatus of the digital X-ray imaging system, as shown in fig. 3, the method specifically includes the following steps:
Wherein the target range may be selected by a user or automatically determined based on a recognition algorithm.
The method for calculating the actual size of the target range may be a method for determining the actual size in the image display method of the digital X-ray imaging system provided in any embodiment of the present invention.
And step 340, displaying the actual size.
Example four
Fig. 4 is a flowchart of an image display method of a digital X-ray imaging system according to a fourth embodiment of the present invention, where this embodiment is applicable to a case of image display of the digital X-ray imaging system, and the method may be executed by an image display apparatus of the digital X-ray imaging system, as shown in fig. 4, the method specifically includes the following steps:
Wherein the predetermined range may be a pre-selected range.
The method for calculating the actual size within the predetermined range of the digital X-ray image may be a method for determining the actual size in the image display method of the digital X-ray imaging system provided in any embodiment of the present invention.
EXAMPLE five
Fig. 5 is a schematic structural diagram of an image display apparatus of a digital X-ray imaging system in a fifth embodiment of the present invention, and as shown in fig. 5, the image display apparatus of the digital X-ray imaging system includes: a measured distance acquisition module 510, a magnification determination module 520, and a real size determination and display module 530.
The measurement distance obtaining module 510 is configured to obtain a measurement distance, and includes: acquiring any two or three of the distance between an object to be imaged and an imaging surface of a flat panel detector, the distance between a radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged; a magnification ratio determination module 520, configured to determine a magnification ratio of the imaging target of the object to be imaged in an imaging target image acquired based on the digital radiation imaging system according to the measured distance; an actual size determining and displaying module 530, configured to determine an actual size of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, and the magnification ratio, and display the actual size on the imaging target image.
The measurement distance acquisition module is realized by an image capturing unit. For example, in one embodiment, an image capture unit, such as a camera or video recorder, may be integrated into the DR device shown in FIG. 1A, the camera or video recorder being communicatively coupled to the DR device, which may be suspended directly above the DR device, capturing optical images of the radiation source, detector, and object to be imaged (e.g., a patient) from above. Since the probe body is accommodated in the probe housing, although the image capturing unit can capture the outer contour of the housing, the distance D2 from the probe housing to the imaging surface of the probe cannot be directly known, and the actual distance D2 can be stored in the memory in advance. The image captured by the image capturing unit is displayed on a display, and because the coordinate conversion relation between the actual space and the display plane of the display is calibrated in advance, the actual distance from the ray source to the detector shell and/or the actual distance from the ray source to the object to be detected and/or the actual distance from the object to be detected to the detector shell can be obtained in real time through conversion after the optical image is shot. Moreover, as mentioned above, the actual distance D2 from the detector housing to the detector imaging surface is also known, so the magnification can be readily determined by the magnification determination module from the foregoing. Here, since the thickness of the object to be detected is different, such as a body thickness of an adult male, an adult female, or a young child is significantly different, which position is selected as the position of the object to be detected is also considered. In one example, the thickness center of the object to be detected in the radial direction may be selected as the position of the object to be detected, but it is understood that a point (or a vertical plane) within a preset range near the thickness center may be possible as the position of the object to be detected. In the embodiment using the image capturing unit as an example, the position of the object to be detected can also be determined by artificial intelligence, for example, by taking an optical image to identify which vertical plane is the position of the object to be detected. More specifically, for example, it is possible to determine which position is appropriate as the position of the object to be detected from the photographing protocol and basic information (possibly including age, sex, height, and the like) of the human body to be detected to calculate the magnification.
It will be appreciated by those skilled in the art that the above examples are merely illustrative and that in fact the DR apparatus may be other radiographic apparatus.
The image capturing unit may be fixed to a position in the scanning room, such as the ceiling, according to the above description, however, it will be appreciated that the image capturing unit may also be fixed to a stationary part of the gantry of the scanning device, as well as to a movable part of the scanning device.
According to the technical scheme of the embodiment of the invention, the actual size of the imaging target can be automatically determined by determining the amplification ratio of the imaging target of the object to be imaged in the imaging target image acquired based on the digital radiation imaging system and the size of the pixel unit on the imaging target image, so that the technical problems of larger measurement result error and high operation cost caused by dependence on human intervention in the conventional tissue measurement method are solved, and meanwhile, the equipment cost is reduced because extra equipment is not required to be added for measurement. The method has the advantages of achieving the effects of scientific measurement of tissue size, high accuracy of measurement results and good consistency, improving the working efficiency and reducing the operation cost.
Wherein the imaging target image comprises a single frame image or a stitched image, and the actual size of the imaging target comprises one or more of a length, a width, a circumference, or an area of the imaging target.
Optionally, the measured distance obtaining module 510 is further configured to:
acquiring the distance between the object to be imaged and the imaging surface of the flat panel detector through manual operation; or the like, or, alternatively,
and measuring the distance between the object to be imaged and the imaging surface of the flat panel detector by a distance sensor (such as an infrared distance meter).
Optionally, the actual size determining and displaying module 530 is further configured to:
and determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the magnification ratio and the received selection operation input by the user.
Optionally, the actual size determining and displaying module 530 includes:
the curve determining unit is used for determining at least one closed curve or non-closed curve according to the received selection operation input by the user;
an imaging target length determining unit, configured to determine a length of the imaging target according to a size of a pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio, and the straight line or non-closed curve; and/or the presence of a gas in the gas,
the closed curve determining unit is used for determining at least one closed curve according to the received selection operation input by the user;
and the imaging target area determining unit is used for determining the area of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio and the closed curve.
Optionally, the image display device of the digital X-ray imaging system further includes:
and the graduated scale determining and displaying module is used for determining the graduated scale according to the size of the pixel unit on the imaging target image and the magnification ratio and displaying the graduated scale on the imaging target image.
Specifically, for the graduated scale determination display, in an example, the user may click a "distance display" or a button similar to the function on the display interface of the X-ray film, and then select a target range to be subjected to distance display on the X-ray film, where the target range may be a segment of the X-ray film in the vertical direction or a segment of the X-ray film in the horizontal direction, so that the distance corresponding to the target range may be calculated and displayed by the method described above. Naturally, the user may select the target range and then select the "distance display" or a button similar to this function. In another example, to conform to the usage habits of the doctor, a scale is generated in the horizontal and/or vertical direction of the X-ray film at the same time or after the X-ray film is generated or displayed, and the scale is simulated. For example, from the lowest to the highest (and also from the highest to the lowest or only within the height of the body) and/or from the leftmost to the rightmost (or from the rightmost to the leftmost or within the width of the body) scale of the X-ray film.
The image display device of the digital X-ray imaging system provided by the embodiment of the invention can execute the image display method of the digital X-ray imaging system provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE six
Fig. 6 is a schematic structural diagram of an image display apparatus according to a sixth embodiment of the present invention, as shown in fig. 6, the apparatus includes a processor 610, a memory 620, an input device 630, and an output device 640; the number of the device processors 610 may be one or more, and one processor 610 is taken as an example in fig. 6; the processor 610, the memory 620, the input device 630 and the output device 640 in the apparatus may be connected by a bus or other means, and fig. 6 illustrates an example of a connection by a bus.
The memory 620 serves as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the image display method of the digital X-ray imaging system in the embodiment of the present invention (for example, the measured distance acquisition module 510, the enlargement ratio determination module 520, and the actual size determination and display module 530 in the image display apparatus of the digital X-ray imaging system). The processor 610 executes various functional applications of the device and multimedia information processing by running software programs, instructions and modules stored in the memory 620, namely, implements the image display method of the digital X-ray imaging system described above.
The memory 620 may mainly include a storage program area and a storage multimedia information area, wherein the storage program area may store an operating system, an application program required for at least one function; the multimedia information storage area may store multimedia information created according to the use of the terminal, and the like. Further, the memory 620 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 620 may further include memory located remotely from the processor 610, which may be connected to the device/terminal/server via 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 input means 630 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the device. The output device 640 may include a display device such as a display screen.
EXAMPLE seven
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method for image display of a digital X-ray imaging system, the method including:
obtaining a measured distance, comprising:
acquiring any two or three of the distance between an object to be imaged and an imaging surface of a flat panel detector, the distance between a radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged;
according to the measurement distance, determining the magnification ratio of an imaging target of the object to be imaged in an imaging target image acquired based on the digital X-ray imaging system;
and determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the pixel number of the imaging target and the magnification ratio, and displaying the actual size on the imaging target image.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also perform related operations in the image display method of the digital X-ray imaging system provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the image display apparatus of the digital X-ray imaging system, the included units and modules are only divided according to the functional logic, but not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (15)
1. An image display method of a digital X-ray imaging system, comprising:
obtaining a measured distance, comprising:
acquiring any two or three of the distance between an object to be imaged and an imaging surface of a flat panel detector, the distance between a radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged;
according to the measurement distance, determining the magnification ratio of an imaging target of the object to be imaged in an imaging target image acquired based on the digital X-ray imaging system;
and determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the pixel number of the imaging target and the magnification ratio, and displaying the actual size on the imaging target image.
2. The method of claim 1, wherein the actual size of the imaging target includes one or more of a length, a width, a circumference, or an area of the imaging target.
3. The image display method of the digital X-ray imaging system according to claim 1, wherein the obtaining the measured distance is a distance between an object to be imaged and an imaging plane of the flat panel detector, and comprises:
acquiring the distance between the object to be imaged and the imaging surface of the flat panel detector through manual operation; or the like, or, alternatively,
and measuring the distance between the object to be imaged and the imaging surface of the flat panel detector through a distance sensor.
4. The image display method of the digital X-ray imaging system according to claim 1, wherein determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target and the magnification ratio comprises:
and determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio and the received selected operation input by the user.
5. The image display method of the digital X-ray imaging system according to claim 4, wherein the determining of the actual size of the imaging target according to the selected operation of the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio and the received user input comprises:
determining at least one closed curve or non-closed curve according to the received selected operation input by the user;
determining the length or width of the imaging target according to the size of a pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio and the closed curve or the non-closed curve; and/or the presence of a gas in the gas,
determining at least one closed curve according to the received selection operation input by the user;
and determining the area of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target, the magnification ratio and the closed curve.
6. The image display method of a digital X-ray imaging system according to claim 1, further comprising:
and determining a graduated scale according to the size of the pixel unit on the imaging target image, the pixel number of the imaging target image and the amplification ratio, and displaying the graduated scale on the imaging target image.
7. The image display method of a digital X-ray imaging system according to claim 1, wherein the imaging target image comprises a single frame image or a stitched image.
8. The image display method of a digital X-ray imaging system according to claim 1, wherein the obtaining of the measurement distance is performed by an image capturing unit.
9. The image display method of a digital X-ray imaging system according to claim 8, wherein the image capturing unit comprises a video camera or a video recorder.
10. An image display method of a digital X-ray imaging system, comprising:
obtaining a digital X-ray image of an object to be imaged;
selecting a target range of the digital X-ray image;
the method of claims 1-9, calculating the actual size of the target range;
and displaying the actual size.
11. An image display method of a digital X-ray imaging system, comprising:
obtaining a digital X-ray image of an object to be imaged;
the method according to claims 1-9, calculating the actual size of said digital X-ray image within a predetermined range;
displaying the actual size on the digital X-ray image.
12. The display method according to claim 11, wherein the displaying the actual size is displayed on a virtual scale.
13. An image display apparatus of a digital X-ray imaging system, comprising:
a measured distance acquisition module for acquiring a measured distance, comprising:
acquiring any two or three of the distance between an object to be imaged and an imaging surface of a flat panel detector, the distance between a radioactive source and the imaging surface of the flat panel detector and the distance between the radioactive source and the object to be imaged;
the magnification ratio determining module is used for determining the magnification ratio of the imaging target of the object to be imaged in the imaging target image acquired based on the digital radiation imaging system according to the measuring distance;
and the actual size determining and displaying module is used for determining the actual size of the imaging target according to the size of the pixel unit on the imaging target image, the number of pixels of the imaging target and the magnification ratio, and displaying the actual size on the imaging target image.
14. An image display apparatus, comprising,
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the image display method of the digital X-ray imaging system of any of claims 1-9.
15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the image display method of a digital X-ray imaging system according to any one of claims 1 to 9.
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| WO2023023955A1 (en) * | 2021-08-24 | 2023-03-02 | Siemens Shanghai Medical Equipment Ltd. | Method and apparatus for determining touch panel to object distance in x-ray imaging |
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