CN107203959B - Image acquisition method and device and digital X-ray photographing equipment - Google Patents
Image acquisition method and device and digital X-ray photographing equipment Download PDFInfo
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Abstract
The embodiment of the invention provides an image acquisition method, an image acquisition device and digital X-ray photographic equipment. The embodiment of the invention respectively detects whether the first flat panel detector and the second flat panel detector are in a free use state before the image is collected, when both are in a free use state, activating both, respectively acquiring a first image and a second image, and selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image, so that the whole image acquisition process is automatically carried out, manual operation is reduced, thereby improving the intelligent degree of the DR equipment, saving time because no manual operation is needed, improving the working efficiency of the DR equipment in the aspect of image acquisition, the problems that in the prior art, manual operation is more, time consumption is long, the intelligent degree of DR equipment is low and work efficiency is low are solved to a certain extent.
Description
[ technical field ] A method for producing a semiconductor device
The present disclosure relates to the field of image processing technologies, and in particular, to an image acquisition method and apparatus, and a digital X-ray photography device.
[ background of the invention ]
DR (Digital Radiography) equipment is an important detection device. The DR device collects image information of X-rays using a flat panel detector (flat panel for short), and converts the image information into a digital image after processing.
Among them, the dual-free flat DR apparatus is a DR apparatus commonly used at present. A dual free flat panel DR apparatus has two free flat panel detectors with respective assigned positions on the DR apparatus. When the flat panel detector is used, the flat panel detector can be installed at a designated position for image acquisition, and the state is called a non-free use state because the position of the flat panel detector cannot move. When the flat panel detector is used, the flat panel detector can also be taken down from the designated position and placed at any position except the designated position for image acquisition, that is, the flat panel detector can be moved at will, and the state is called a free use state.
In the DR equipment with double free flat panels, when two flat panel detectors are in a free use state, a user is required to manually determine which flat panel detector is the flat panel detector needing to work (namely, the flat panel detector needing to perform an image acquisition task), then information is manually input on an interface of the DR equipment to select the flat panel detector, the DR equipment activates the corresponding flat panel detector according to the selection of the user, and the activated flat panel detector performs image acquisition. The image acquisition scheme requires more manual operation, so the degree of intelligence is lower, and the working efficiency is lower due to longer time consumption of the manual operation.
[ summary of the invention ]
In view of this, embodiments of the present disclosure provide an image acquisition method and apparatus, and a digital X-ray photographing device, so as to solve the problems of a DR device having a low degree of intelligence and a low working efficiency due to a large number of manual operations and a long time consumption in an image acquisition scheme in the prior art.
In a first aspect, an embodiment of the present disclosure provides an image acquisition method applied to a digital radiography DR apparatus including a first flat panel detector and a second flat panel detector, where the method includes:
before an image is collected, whether the first flat panel detector and the second flat panel detector are in a free use state is detected respectively, wherein the free use state refers to a state capable of moving randomly;
when the first flat panel detector and the second flat panel detector are both in a free use state, activating the first flat panel detector and the second flat panel detector to enable the first flat panel detector and the second flat panel detector to respectively acquire images, recording the image acquired by the first flat panel detector as a first image, and recording the image acquired by the second flat panel detector as a second image;
and selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
The above-described aspect and any possible implementation manner further provide an implementation manner that detects whether the first flat panel detector and the second flat panel detector are in a free-use state, respectively, including:
and judging whether the first flat panel detector is in a free use state or not according to the currently corresponding first position information of the first flat panel detector, and judging whether the second flat panel detector is in a free use state or not according to the currently corresponding second position information of the second flat panel detector.
The above-described aspects and any possible implementations further provide an implementation in which the first flat panel detector has a first designated location on the DR apparatus;
the first position information is the current position information of the first flat panel detector;
according to the first position information currently corresponding to the first flat panel detector, before judging whether the first flat panel detector is in a free use state, the method further comprises the following steps: acquiring the first position information according to the detection light direction of the DR equipment;
judging whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, including:
judging whether a first position indicated by the first position information is consistent with the first designated position or not;
if the first position indicated by the first position information is inconsistent with the first designated position, determining that the first flat panel detector is in a free use state, or if the first position indicated by the first position information is consistent with the first designated position, determining that the first flat panel detector is not in a free use state.
The above-described aspects and any possible implementations further provide an implementation in which the second flat panel detector has a second designated position on the DR apparatus;
the second position information is the position information of the second flat panel detector;
according to the second position information currently corresponding to the second flat panel detector, before judging whether the second flat panel detector is in a free use state, the method further comprises the following steps:
acquiring the second position information according to the detection light direction of the DR equipment;
judging whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, wherein the judging step comprises the following steps:
judging whether a second position indicated by the second position information is consistent with the second designated position or not;
and if the second position indicated by the second position information is inconsistent with the second specified position, determining that the second flat panel detector is in a free use state, or if the second position indicated by the second position information is consistent with the second specified position, determining that the second flat panel detector is not in the free use state.
The above aspects and any possible implementations further provide an implementation in which the first flat panel detector has a first designated location on the DR apparatus;
the first position information is used for indicating whether the first flat panel detector is at the first designated position or not;
according to the first position information currently corresponding to the first flat panel detector, before judging whether the first flat panel detector is in a free use state, the method further comprises the following steps:
detecting whether the first flat panel detector is installed at the first designated position currently or not to obtain the first position information;
judging whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, including:
if the first position information indicates that the first flat panel detector is not at the first designated position, determining that the first flat panel detector is in a free use state, or if the first position information indicates that the first flat panel detector is at the first designated position, determining that the first flat panel detector is not in a free use state.
The above-described aspects and any possible implementations further provide an implementation in which the second flat panel detector has a second designated position on the DR apparatus;
the second position information is used for indicating whether the second flat panel detector is at the second appointed position or not;
according to the second position information currently corresponding to the second flat panel detector, before judging whether the second flat panel detector is in a free use state, the method further comprises the following steps:
detecting whether the second flat panel detector is installed at the second appointed position currently or not so as to obtain second position information;
judging whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, wherein the judging step comprises the following steps:
and if the second position information indicates that the second flat panel detector is not at the second designated position, determining that the second flat panel detector is in a free use state, or if the second position information indicates that the second flat panel detector is at the second designated position, determining that the second flat panel detector is not in a free use state.
The foregoing aspect and any possible implementation manner further provide an implementation manner, where selecting a target image from the first image and the second image according to the gray scale information of the first image and the second image includes:
acquiring a first gray value of at least one first designated pixel point in the first image;
determining second designated pixel points corresponding to the at least one first designated pixel point in the second image, wherein the number of the second designated pixel points is equal to that of the first designated pixel points;
acquiring a second gray value of the second designated pixel point in the second image;
comparing the first gray values with the second gray values in a one-to-one correspondence manner to obtain the number of the first gray values larger than the corresponding second gray values;
and selecting a target image from the first image and the second image according to the relation between the number and the number of the first designated pixel points.
As for the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where selecting a target image from the first image and the second image according to a relationship between the number and the number of the first designated pixel points includes:
obtaining the ratio of the number to the number of the first appointed pixel points;
if the ratio is larger than or equal to a specified value, selecting the first image as a target image;
and if the ratio is smaller than the specified value, selecting the second image as a target image.
The foregoing aspect and any possible implementation manner further provide an implementation manner, where selecting a target image from the first image and the second image according to the gray scale information of the first image and the second image includes:
acquiring the average gray value of all pixel points in the first image to be used as a first average gray value;
acquiring the average gray value of all pixel points in the second image to be used as a second average gray value;
comparing the first average gray value with the second average gray value;
when the first average gray value is larger than the second average gray value, selecting the first image as a target image;
and when the first average gray value is smaller than the second average gray value, selecting the second image as a target image.
The above-described aspects and any possible implementations further provide an implementation, and the method further includes:
and displaying the target image.
The above-described aspects and any possible implementations further provide an implementation, and the method further includes:
storing the target image and deleting a non-target image among both the first image and the second image.
In a second aspect, an embodiment of the present disclosure provides an image capturing apparatus, which is disposed in a digital radiography DR apparatus including a first flat panel detector and a second flat panel detector, and the apparatus includes:
the detection module is used for respectively detecting whether the first flat panel detector and the second flat panel detector are in a free use state before an image is collected, wherein the free use state refers to a state capable of moving at will;
the activation module is used for activating the first flat panel detector and the second flat panel detector when the first flat panel detector and the second flat panel detector are both in a free use state, so that the first flat panel detector and the second flat panel detector respectively acquire images, the image acquired by the first flat panel detector is recorded as a first image, and the image acquired by the second flat panel detector is recorded as a second image;
and the selecting module is used for selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
In a third aspect, an embodiment of the present disclosure provides a digital radiography apparatus, including:
a processor;
a memory for storing the processor-executable instructions;
the processor is configured to:
before an image is collected, whether the first flat panel detector and the second flat panel detector are in a free use state is detected respectively, wherein the free use state refers to a state capable of moving randomly;
when the first flat panel detector and the second flat panel detector are both in a free use state, activating the first flat panel detector and the second flat panel detector to enable the first flat panel detector and the second flat panel detector to respectively acquire images, recording the image acquired by the first flat panel detector as a first image, and recording the image acquired by the second flat panel detector as a second image;
and selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
The embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, before the image is collected, whether the first flat panel detector and the second flat panel detector are in a free use state is respectively detected, when the first flat panel detector and the second flat panel detector are both in the free use state, the first flat panel detector and the second flat panel detector are activated to respectively collect the first image and the second image, and the target image is selected from the first image and the second image according to the gray information of the first image and the gray information of the second image, so that the whole image acquisition process is automatically carried out by DR equipment, the flat panel detector needing to work is not required to be determined and selected through manual operation, the manual operation is reduced, the intelligent degree of the DR equipment is improved, the time is saved due to the fact that the manual operation is not required, and the work efficiency of the DR equipment in the aspect of image acquisition is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a diagram illustrating a first process of an image obtaining method according to an embodiment of the present invention.
Fig. 2 is a diagram illustrating a second flow of an image obtaining method according to an embodiment of the present invention.
Fig. 3 is a diagram illustrating a third flow of an image obtaining method according to an embodiment of the present invention.
Fig. 4 is a functional block diagram of an image capturing apparatus according to an embodiment of the present invention.
Fig. 5 is a simplified block diagram of a digital radiography apparatus.
[ detailed description ] embodiments
In order to better understand the technical solution of the present solution, the following describes an embodiment of the present solution in detail with reference to the accompanying drawings.
It should be clear that the described embodiments are only a part of the present solution, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments in the present solution, belong to the protection scope of the present solution.
The terminology used in the embodiments of the present solution is for the purpose of describing particular embodiments only and is not intended to be limiting of the present solution. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
Fig. 1 is a diagram illustrating a first process of an image obtaining method according to an embodiment of the present invention. As shown in fig. 1, in the present embodiment, the image acquiring method is applied to a DR apparatus including a first flat panel detector and a second flat panel detector, and the method may include the following steps:
s101, before an image is collected, whether a first flat plate detector and a second flat plate detector are in a free use state is detected respectively, and the free use state refers to a state capable of moving randomly.
S102, when the first flat panel detector and the second flat panel detector are both in a free use state, the first flat panel detector and the second flat panel detector are activated to enable the first flat panel detector and the second flat panel detector to respectively acquire images, the image acquired by the first flat panel detector is recorded as a first image, and the image acquired by the second flat panel detector is recorded as a second image.
S103, selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
The flat panel detector in the DR apparatus has two use states, namely, a free use state and a non-free use state. In a non-free use state, the position of the flat panel detector is fixed at a designated position on the DR equipment, and the flat panel detector needs to acquire an image at the designated position. In the free use state, the position of the flat panel detector can be moved at will, and at this time, the flat panel detector can be placed at any position except for the specified position for image acquisition. That is, in the non-free use state, the user cannot select the position at which the flat panel detector performs image acquisition, and in the free use state, the user can select the position at which the flat panel detector performs image acquisition.
In S102, when it is detected that the first flat panel detector and the second flat panel detector are both in a free use state, the first flat panel detector and the second flat panel detector are all activated, so that the first flat panel detector and the second flat panel detector respectively perform image acquisition to obtain a first image acquired by the first flat panel detector and a second image acquired by the second flat panel detector. In this way, whichever of the first flat panel detector and the second flat panel detector is the flat panel detector that needs to be operated, the flat panel detector that needs to be operated is activated. Then, one of the obtained first image and the second image is the target image to be acquired. Then, a target image may be selected from among the first image and the second image through step S103.
When image acquisition is carried out by using the DR equipment, the position of a bulb tube emitting X-rays on the DR equipment and the position of a flat panel detector needing to work (namely the flat panel detector needing to work) need to be fixed according to a specified mode, so that the X-rays emitted by the bulb tube can irradiate the flat panel detector needing to work after transmitting a scanning target, and the flat panel detector needing to work can accurately acquire a required image. Thus, the flat panel detector that needs to be operated receives more transmitted X-rays than the flat panel detector that does not need to be operated.
And the transmitted X-rays received by the flat panel detector can be reflected in the gray scale information of the acquired image. A target image is selected from the first image and the second image. Therefore, the number of the received light rays of the flat panel detector can be determined according to the gray scale information, the flat panel detector needing to work is determined according to the number of the received light rays, and then the target image is determined according to the flat panel detector needing to work at the determined position. Therefore, in S103, the target image may be selected from the first image and the second image based on the gradation information of the first image and the gradation information of the second image.
In the embodiment shown in fig. 1, when the dual-free flat panel DR device determines that both flat panel detectors are in the free use state, the two flat panel detectors are automatically activated to acquire images, then the target image is automatically determined according to the gray scale information of the images acquired by the two flat panel detectors, the DR device automatically performs the whole image acquisition process without determining and selecting the flat panel detectors to be operated through manual operation, so that the manual operation is reduced, the intelligent degree of the DR device is improved, and time is saved due to the fact that the manual operation is not required, and the work efficiency of the DR device in the aspect of image acquisition is improved.
In an exemplary implementation, the detecting whether the first flat panel detector and the second flat panel detector are in a free-use state respectively may include: and judging whether the first flat panel detector is in a free use state or not according to the currently corresponding first position information of the first flat panel detector, and judging whether the second flat panel detector is in a free use state or not according to the currently corresponding second position information of the second flat panel detector.
In one exemplary implementation, a first flat panel detector has a first designated location on a DR apparatus; the first position information is the position information of the current first flat panel detector; before judging whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, the image acquisition method may further include: acquiring first position information according to the detection light direction of the DR equipment; judging whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, including: judging whether a first position indicated by the first position information is consistent with a first designated position or not; and if the first position indicated by the first position information is inconsistent with the first designated position, determining that the first flat panel detector is in a free use state, or if the first position indicated by the first position information is consistent with the first designated position, determining that the first flat panel detector is not in the free use state.
Herein, the detection light means X-ray. As the flat panel detector needing to work and the X-ray emitting bulb tube of the DR equipment have a specified position relation, and the detection light is emitted from the bulb tube, the flat panel detector needing to work and the flat panel detector not needing to work have a certain relation with the detection light direction of the DR equipment. For example, the flat panel detector to be operated is perpendicular to the direction of the detection light, so that the area of the flat panel detector receiving the light is large and the light is received more. And the flat panel detector which does not need to work is not vertical to the direction of the detection light, so that the area of the flat panel detector for receiving the light is small, and the received light is few. Therefore, the position information corresponding to the flat panel detector can be acquired according to the detection light direction of the DR equipment.
In one exemplary implementation, the second flat panel detector has a second designated position on the DR apparatus; the second position information is the position information of the current second flat panel detector; before judging whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, the image acquisition method may further include: acquiring second position information according to the detection light direction of the DR equipment; judging whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, wherein the judging step comprises the following steps: judging whether a second position indicated by the second position information is consistent with a second designated position; and if the second position indicated by the second position information is not consistent with the second specified position, determining that the second flat panel detector is in a free use state, or if the second position indicated by the second position information is consistent with the second specified position, determining that the second flat panel detector is not in the free use state.
In one exemplary implementation, a first flat panel detector has a first designated location on a DR apparatus; the first position information is used for indicating whether the first flat panel detector is at a first specified position or not; before judging whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, the image acquisition method may further include: detecting whether a first flat detector is installed at a first designated position at present to obtain first position information; judging whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, including: and if the first position information indicates that the first flat panel detector is not at the first designated position currently, determining that the first flat panel detector is in a free use state, or if the first position information indicates that the first flat panel detector is at the first designated position currently, determining that the first flat panel detector is not in a free use state.
The difference between the free use state and the non-free use state is whether the position of the flat panel detector when the flat panel detector collects the image is the designated position on the DR equipment corresponding to the flat panel detector. Based on the method, whether the flat panel detector is installed at the designated position on the DR equipment corresponding to the flat panel detector or not can be detected, so that the use state of the flat panel detector can be determined. When the flat panel detector is installed at the designated position on the DR equipment corresponding to the flat panel detector, the flat panel detector can be determined to be in a non-free use state. When the flat panel detector is not installed at the designated position on the DR equipment corresponding to the flat panel detector, the flat panel detector can be determined to be in a free use state.
For example. Assume that the designated position on the DR device corresponding to the first flat panel detector is position a, and the designated position on the DR device corresponding to the second flat panel detector is position B. When the flat panel detector is detected at the position A, the first flat panel detector is installed at the position A, and therefore the first flat panel detector is not in a free use state. If the flat panel detector is not detected at the position A, the first flat panel detector is not installed at the position A, and therefore, the first flat panel detector is in a free use state.
Similarly, when the flat panel detector is detected at the position B, it indicates that the second flat panel detector is currently installed at the position B, and therefore, the second flat panel detector is currently in a non-free use state. If the flat panel detector is not detected at the position B, the second flat panel detector is not installed at the position B currently, and therefore, the second flat panel detector is in a free use state currently.
In one exemplary implementation, the second flat panel detector has a second designated position on the DR apparatus; the second position information is used for indicating whether the second flat panel detector is at a second appointed position or not; before judging whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, the image acquisition method further comprises the following steps: detecting whether a second flat plate detector is installed at the second appointed position currently or not so as to obtain second position information; judging whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, wherein the judging step comprises the following steps: and if the second position information indicates that the second flat panel detector is not at the second appointed position, determining that the second flat panel detector is in a free use state, or if the second position information indicates that the second flat panel detector is at the second appointed position, determining that the second flat panel detector is not in the free use state.
In an exemplary implementation, selecting the target image from the first image and the second image according to the gray scale information of the first image and the second image may include: acquiring a first gray value of at least one first designated pixel point in a first image; determining second designated pixel points corresponding to at least one first designated pixel point in the second image, wherein the number of the second designated pixel points is equal to that of the first designated pixel points; acquiring a second gray value of a second designated pixel point in a second image; comparing the first gray values with the second gray values in a one-to-one correspondence manner to obtain the number of the first gray values larger than the corresponding second gray values; and selecting a target image from the first image and the second image according to the relation between the number and the number of the first designated pixel points.
In an exemplary implementation process, selecting a target image from a first image and a second image according to a relationship between the number and the number of first designated pixel points may include: obtaining the ratio of the number to the number of the first appointed pixel points; if the ratio is larger than or equal to the specified value, selecting the first image as a target image; and if the ratio is smaller than the specified value, selecting the second image as the target image.
The two flat panel detectors of the DR apparatus are generally the same size, in which case the two flat panel detectors have the same coordinates, and therefore, the points with the same coordinates on the two flat panel detectors are corresponding designated pixel points. The gray values of a certain number of designated pixel points on the images collected by the two flat panel detectors are compared, so that the overall gray value condition of the images collected by the two flat panel detectors can be obtained, and the target image can be selected according to the overall gray value condition. Therefore, the gray values of all pixel points in the first image and the second image do not need to be compared, so that the data volume needing to be processed can be greatly reduced, and the processing speed is improved.
For example. Assuming that the number of the pixel points in the first image and the number of the pixel points in the second image are 10 ten thousand, 2000 first pixel points can be selected from the first image, then, according to the coordinates of the 2000 first pixel points, 2000 corresponding second pixel points are found in the second image, and the first gray values of the first pixel points and the second gray values of the second pixel points are compared in a one-to-one correspondence manner. Assuming that 1900 first gray values are greater than the corresponding second gray values as a result of the comparison and the designated value is 90%, the first image is selected as the target image because the ratio of 1900 to 2000 is 95% and greater than 90%. In the process, 2000 pairs of data need to be compared, compared with 10 thousands of data, the data amount needing to be processed is greatly reduced, and therefore the processing speed is improved.
In one exemplary implementation, selecting a target image from the first image and the second image according to the gray scale information of the first image and the second image includes: acquiring the average gray value of all pixel points in the first image to be used as a first average gray value; acquiring the average gray value of all pixel points in the second image to be used as a second average gray value; comparing the first average gray value with the second average gray value; when the first average gray value is larger than the second average gray value, selecting the first image as a target image; and when the first average gray value is smaller than the second average gray value, selecting the second image as the target image.
Here, since the first average gray value is an average gray value of all pixel points in the first image and the second average gray value is an average gray value of all pixel points in the second image, the target image is selected by using a comparison result of the first average gray value and the second average gray value, and the target image can be selected more accurately.
Fig. 2 is a diagram illustrating a first process of an image obtaining method according to an embodiment of the present invention. As shown in fig. 2, in the present embodiment, the image acquiring method is applied to a DR apparatus including a first flat panel detector and a second flat panel detector, and the method may include the following steps:
s201, before the image is collected, whether the first flat panel detector and the second flat panel detector are in a free use state is detected, wherein the free use state refers to a state capable of moving randomly.
S202, when the first flat panel detector and the second flat panel detector are both in a free use state, the first flat panel detector and the second flat panel detector are activated to enable the first flat panel detector and the second flat panel detector to respectively acquire images, the image acquired by the first flat panel detector is recorded as a first image, and the image acquired by the second flat panel detector is recorded as a second image.
S203, selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
And S204, displaying the target image.
In the embodiment shown in fig. 2, after the target image is selected, the target image is displayed, so that the user can see the target image in time. Before S204, or after S204, or while S204 is being performed, the target image may be further stored, and the non-target image among both the first image and the second image may be deleted.
Fig. 3 is a diagram illustrating a first process of an image obtaining method according to an embodiment of the present invention. As shown in fig. 3, in the present embodiment, the image acquiring method is applied to a DR apparatus including a first flat panel detector and a second flat panel detector, and the method may include the following steps:
s301, before the image is collected, whether the first flat panel detector and the second flat panel detector are in a free use state is detected, wherein the free use state refers to a state capable of moving randomly.
S302, when the first flat panel detector and the second flat panel detector are both in a free use state, the first flat panel detector and the second flat panel detector are activated to enable the first flat panel detector and the second flat panel detector to respectively acquire images, the image acquired by the first flat panel detector is recorded as a first image, and the image acquired by the second flat panel detector is recorded as a second image.
And S303, selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
S304, the target image is stored, and the non-target image among both the first image and the second image is deleted.
In the embodiment shown in fig. 3, after the target image is selected, the target image is stored, and the non-target image in the first image and the second image is deleted, so that the useful data collected by the DR device can be timely saved for the user to take out when needed.
The image acquisition method provided by the embodiment of the invention respectively detects whether the first flat panel detector and the second flat panel detector are in a free use state before the image is acquired, when the first flat panel detector and the second flat panel detector are both in a free use state, the first flat panel detector and the second flat panel detector are activated to respectively acquire a first image and a second image, and selecting a target image from the first image and the second image based on the gray scale information of the first image and the gray scale information of the second image, the whole image acquisition process is automatically carried out by DR equipment without determining and selecting the flat panel detector needing to work through manual operation, the manual operation is reduced, therefore, the intelligent degree of the DR equipment is improved, time is saved due to the fact that manual operation is not needed, and working efficiency of the DR equipment in the aspect of image acquisition is improved.
The embodiment of the invention also provides an image acquisition device, which can realize the steps of the image acquisition method in the embodiment.
Fig. 4 is a functional block diagram of an image capturing apparatus according to an embodiment of the present invention. As shown in fig. 4, in the present embodiment, the image acquiring apparatus is disposed in a digital radiography DR apparatus including a first flat panel detector and a second flat panel detector, and the image acquiring apparatus may include:
the detecting module 410 is configured to detect whether the first flat panel detector and the second flat panel detector are in a free use state before acquiring the image, where the free use state refers to a state in which the first flat panel detector and the second flat panel detector can move arbitrarily.
The activation module 420 is configured to activate the first flat panel detector and the second flat panel detector when both the first flat panel detector and the second flat panel detector are in a free use state, so that the first flat panel detector and the second flat panel detector respectively perform image acquisition, and an image acquired by the first flat panel detector is recorded as a first image, and an image acquired by the second flat panel detector is recorded as a second image.
And the selecting module 430 is configured to select a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
In an exemplary implementation process, the detecting module 410, when configured to detect whether the first flat panel detector and the second flat panel detector are in a free-use state, may specifically be configured to: and judging whether the first flat panel detector is in a free use state or not according to the currently corresponding first position information of the first flat panel detector, and judging whether the second flat panel detector is in a free use state or not according to the currently corresponding second position information of the second flat panel detector.
In one exemplary implementation, a first flat panel detector has a first designated location on a DR apparatus; the first position information is the position information of the first flat panel detector at present; the image acquisition apparatus may further include: the first acquisition module is used for acquiring the first position information according to the detection light direction of the DR equipment; the detecting module 410 is configured to, when determining whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, specifically: judging whether a first position indicated by the first position information is consistent with a first designated position or not; and if the first position indicated by the first position information is inconsistent with the first designated position, determining that the first flat panel detector is in a free use state, or if the first position indicated by the first position information is consistent with the first designated position, determining that the first flat panel detector is not in the free use state.
In one exemplary implementation, the second flat panel detector has a second designated position on the DR apparatus; the second position information is the position information of the current second flat panel detector; the image acquisition apparatus may further include: the second acquisition module is used for acquiring second position information according to the detection light direction of the DR equipment; the detecting module 410 is configured to, when determining whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, specifically: judging whether a second position indicated by the second position information is consistent with a second designated position; and if the second position indicated by the second position information is not consistent with the second specified position, determining that the second flat panel detector is in a free use state, or if the second position indicated by the second position information is consistent with the second specified position, determining that the second flat panel detector is not in the free use state.
In one exemplary implementation, a first flat panel detector has a first designated location on a DR apparatus; the first position information is used for indicating whether the first flat panel detector is at the first designated position or not; the image acquisition apparatus may further include: the first position detection module is used for detecting whether a first flat detector is installed at a first designated position currently or not so as to obtain first position information; the detecting module 410 is configured to, when determining whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, specifically: and if the first position information indicates that the first flat panel detector is not at the first designated position currently, determining that the first flat panel detector is in a free use state, or if the first position information indicates that the first flat panel detector is at the first designated position currently, determining that the first flat panel detector is not in a free use state.
In one exemplary implementation, the second flat panel detector has a second designated position on the DR apparatus; the second position information is used for indicating whether the second flat panel detector is at a second appointed position or not; the image acquisition apparatus may further include: the first map-like position detection module is used for detecting whether a second flat panel detector is installed at a second appointed position currently or not so as to obtain second position information; the detecting module 410 is configured to, when determining whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, specifically: and if the second position information indicates that the second flat panel detector is not at the second appointed position, determining that the second flat panel detector is in a free use state, or if the second position information indicates that the second flat panel detector is at the second appointed position, determining that the second flat panel detector is not in the free use state.
In an exemplary implementation process, the selecting module 430, when configured to select the target image from the first image and the second image according to the gray scale information of the first image and the second image, is specifically configured to: acquiring a first gray value of at least one first designated pixel point in a first image; determining second designated pixel points corresponding to at least one first designated pixel point in the second image, wherein the number of the second designated pixel points is equal to that of the first designated pixel points; acquiring a second gray value of a second designated pixel point in a second image; comparing the first gray values with the second gray values in a one-to-one correspondence manner to obtain the number of the first gray values larger than the corresponding second gray values; and selecting a target image from the first image and the second image according to the relation between the number and the number of the first designated pixel points.
In an exemplary implementation process, when the selecting module 430 is configured to select the target image from the first image and the second image according to the relationship between the number and the number of the first designated pixel points, specifically: obtaining the ratio of the number to the number of the first appointed pixel points; if the ratio is larger than or equal to the specified value, selecting the first image as a target image; and if the ratio is smaller than the specified value, selecting the second image as the target image.
In an exemplary implementation process, the selecting module 430, when configured to select the target image from the first image and the second image according to the gray scale information of the first image and the second image, is specifically configured to: acquiring the average gray value of all pixel points in the first image to be used as a first average gray value; acquiring the average gray value of all pixel points in the second image to be used as a second average gray value; comparing the first average gray value with the second average gray value; when the first average gray value is larger than the second average gray value, selecting the first image as a target image; and when the first average gray value is smaller than the second average gray value, selecting the second image as the target image.
In an exemplary implementation, the image capturing apparatus may further include: and the display module is used for displaying the target image.
In an exemplary implementation, the image capturing apparatus may further include: and the storage and deletion module is used for storing the target image and deleting the non-target image in the first image and the second image.
Since the image acquiring apparatus in the present embodiment is capable of executing the image acquiring method in the foregoing embodiments, reference may be made to the related description of the image acquiring method in the foregoing embodiments for a part of the present embodiment that is not described in detail.
The image acquisition device provided by the embodiment of the invention respectively detects whether the first flat panel detector and the second flat panel detector are in a free use state before the image is acquired, when the first flat panel detector and the second flat panel detector are both in a free use state, the first flat panel detector and the second flat panel detector are activated to respectively acquire a first image and a second image, and selecting a target image from the first image and the second image based on the gray scale information of the first image and the gray scale information of the second image, the whole image acquisition process is automatically carried out by DR equipment without determining and selecting the flat panel detector needing to work through manual operation, the manual operation is reduced, therefore, the intelligent degree of the DR equipment is improved, time is saved due to the fact that manual operation is not needed, and working efficiency of the DR equipment in the aspect of image acquisition is improved.
An embodiment of the present invention further provides a digital radiography apparatus (i.e., a DR apparatus), including: a processor; a memory for storing processor-executable instructions; the processor is configured to: before the image is collected, whether a first flat plate detector and a second flat plate detector are in a free use state is detected respectively, wherein the free use state refers to a state capable of moving randomly; when the first flat panel detector and the second flat panel detector are both in a free use state, activating the first flat panel detector and the second flat panel detector to enable the first flat panel detector and the second flat panel detector to respectively acquire images, recording the image acquired by the first flat panel detector as a first image, and recording the image acquired by the second flat panel detector as a second image; and selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
Fig. 5 is a simplified block diagram of a digital radiography apparatus 500. Referring to fig. 5, the digital radiography apparatus 500 may include a processor 501 coupled to one or more data storage means, which may include a storage medium 506 and a memory unit 504. The digital radiography apparatus 500 may further include an input interface 505 and an output interface 507 for communicating with another device or system. Program codes executed by the CPU of the processor 501 may be stored in the memory unit 504 or the storage medium 506.
The processor 501 in the digital radiography apparatus 500 calls the program code stored in the memory unit 504 or the storage medium 506 to execute the following steps:
before the image is collected, whether a first flat plate detector and a second flat plate detector are in a free use state is detected respectively, wherein the free use state refers to a state capable of moving randomly;
when the first flat panel detector and the second flat panel detector are both in a free use state, activating the first flat panel detector and the second flat panel detector to enable the first flat panel detector and the second flat panel detector to respectively acquire images, recording the image acquired by the first flat panel detector as a first image, and recording the image acquired by the second flat panel detector as a second image;
and selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
In the above embodiments, the storage medium may be a Read-Only Memory (ROM), or may be a Read-write medium, such as a hard disk or a flash Memory. The Memory unit may be a Random Access Memory (RAM). The memory unit may be physically integrated with the processor or integrated in the memory or implemented as a separate unit.
The processor is a control center of the above-mentioned device (the above-mentioned device is the above-mentioned server or the above-mentioned client), and provides a processing device for executing instructions, performing interrupt operation, providing a timing function and various other functions. Optionally, the processor includes one or more Central Processing Units (CPUs), such as CPU 0 and CPU 1 shown in fig. 5. The apparatus may include one or more processors. The processor may be a single core (single CPU) processor or a multi-core (multi-CPU) processor. Unless otherwise stated, a component such as a processor or a memory described as performing a task may be implemented as a general component, which is temporarily used to perform the task at a given time, or as a specific component specially manufactured to perform the task. The term "processor" as used herein refers to one or more devices, circuits and/or processing cores that process data, such as computer program instructions.
The program code executed by the CPU of the processor may be stored in a memory unit or a storage medium. Alternatively, the program code stored in the storage medium may be copied into the memory unit for execution by the CPU of the processor. The processor may execute at least one kernel (e.g., LINUX)TM、UNIXTM、WINDOWSTM、ANDROIDTM、IOSTM) It is well known for such cores to control the operation of such devices by controlling the execution of other programs or processes, controlling communication with peripheral devices, and controlling the use of computer device resources.
The above elements in the above devices may be connected to each other by a bus, such as one of a data bus, an address bus, a control bus, an expansion bus, and a local bus, or any combination thereof.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present disclosure, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (13)
1. An image acquisition method for a Digital Radiography (DR) apparatus comprising a first flat-panel detector and a second flat-panel detector, the method comprising:
before an image is collected, respectively detecting whether the first flat panel detector and the second flat panel detector are in a free use state, wherein the free use state refers to that the first flat panel detector and the second flat panel detector are located at any positions except a designated position of the DR equipment;
when the first flat panel detector and the second flat panel detector are both in a free use state, activating the first flat panel detector and the second flat panel detector to enable the first flat panel detector and the second flat panel detector to respectively acquire images, recording the image acquired by the first flat panel detector as a first image, and recording the image acquired by the second flat panel detector as a second image;
and selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
2. The method of claim 1, wherein separately detecting whether the first flat panel detector and the second flat panel detector are in a free-use state comprises:
and judging whether the first flat panel detector is in a free use state or not according to the currently corresponding first position information of the first flat panel detector, and judging whether the second flat panel detector is in a free use state or not according to the currently corresponding second position information of the second flat panel detector.
3. The method of claim 2,
the first flat panel detector has a first designated location on the DR apparatus;
the first position information is the current position information of the first flat panel detector;
according to the first position information currently corresponding to the first flat panel detector, before judging whether the first flat panel detector is in a free use state, the method further comprises the following steps: acquiring the first position information according to the detection light direction of the DR equipment;
judging whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, including:
judging whether a first position indicated by the first position information is consistent with the first designated position or not;
if the first position indicated by the first position information is inconsistent with the first designated position, determining that the first flat panel detector is in a free use state, or if the first position indicated by the first position information is consistent with the first designated position, determining that the first flat panel detector is not in a free use state.
4. The method of claim 2,
the second flat panel detector has a second designated position on the DR apparatus;
the second position information is the position information of the second flat panel detector;
according to the second position information currently corresponding to the second flat panel detector, before judging whether the second flat panel detector is in a free use state, the method further comprises the following steps:
acquiring the second position information according to the detection light direction of the DR equipment;
judging whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, wherein the judging step comprises the following steps:
judging whether a second position indicated by the second position information is consistent with the second designated position or not;
and if the second position indicated by the second position information is inconsistent with the second specified position, determining that the second flat panel detector is in a free use state, or if the second position indicated by the second position information is consistent with the second specified position, determining that the second flat panel detector is not in the free use state.
5. The method of claim 2,
the first flat panel detector has a first designated position on the DR apparatus;
the first position information is used for indicating whether the first flat panel detector is at the first designated position or not;
according to the first position information currently corresponding to the first flat panel detector, before judging whether the first flat panel detector is in a free use state, the method further comprises the following steps:
detecting whether the first flat panel detector is installed at the first designated position currently or not to obtain the first position information;
judging whether the first flat panel detector is in a free use state according to the currently corresponding first position information of the first flat panel detector, including:
if the first position information indicates that the first flat panel detector is not at the first designated position, determining that the first flat panel detector is in a free use state, or if the first position information indicates that the first flat panel detector is at the first designated position, determining that the first flat panel detector is not in a free use state.
6. The method of claim 2,
the second flat panel detector has a second designated position on the DR apparatus;
the second position information is used for indicating whether the second flat panel detector is at the second appointed position or not;
according to the second position information currently corresponding to the second flat panel detector, before judging whether the second flat panel detector is in a free use state, the method further comprises the following steps:
detecting whether the second flat panel detector is installed at the second appointed position currently or not so as to obtain second position information;
judging whether the second flat panel detector is in a free use state according to second position information currently corresponding to the second flat panel detector, wherein the judging step comprises the following steps:
and if the second position information indicates that the second flat panel detector is not at the second designated position, determining that the second flat panel detector is in a free use state, or if the second position information indicates that the second flat panel detector is at the second designated position, determining that the second flat panel detector is not in a free use state.
7. The method of claim 1, wherein selecting a target image from the first image and the second image according to the gray scale information of the first image and the second image comprises:
acquiring a first gray value of at least one first designated pixel point in the first image;
determining second designated pixel points corresponding to the at least one first designated pixel point in the second image, wherein the number of the second designated pixel points is equal to that of the first designated pixel points;
acquiring a second gray value of the second designated pixel point in the second image;
comparing the first gray values with the second gray values in a one-to-one correspondence manner to obtain the number of the first gray values larger than the corresponding second gray values;
and selecting a target image from the first image and the second image according to the relation between the number and the number of the first designated pixel points.
8. The method of claim 7, wherein selecting a target image from the first image and the second image according to the relationship between the number and the number of the first designated pixels comprises:
obtaining the ratio of the number to the number of the first appointed pixel points;
if the ratio is larger than or equal to a specified value, selecting the first image as a target image;
and if the ratio is smaller than the specified value, selecting the second image as a target image.
9. The method of claim 1, wherein selecting a target image from the first image and the second image according to the gray scale information of the first image and the second image comprises:
acquiring the average gray value of all pixel points in the first image to be used as a first average gray value;
acquiring the average gray value of all pixel points in the second image to be used as a second average gray value;
comparing the first average gray value with the second average gray value;
when the first average gray value is larger than the second average gray value, selecting the first image as a target image;
and when the first average gray value is smaller than the second average gray value, selecting the second image as a target image.
10. The method of claim 1, further comprising:
and displaying the target image.
11. The method according to claim 1 or 10, further comprising:
storing the target image and deleting a non-target image among both the first image and the second image.
12. An image acquisition apparatus provided in a Digital Radiography (DR) device including a first flat panel detector and a second flat panel detector, the apparatus comprising:
the detection module is used for respectively detecting whether the first flat panel detector and the second flat panel detector are in a free use state before an image is collected, wherein the free use state refers to that the first flat panel detector and the second flat panel detector are located at any positions of the DR equipment except for a specified position;
the activation module is used for activating the first flat panel detector and the second flat panel detector when the first flat panel detector and the second flat panel detector are both in a free use state, so that the first flat panel detector and the second flat panel detector respectively acquire images, the image acquired by the first flat panel detector is recorded as a first image, and the image acquired by the second flat panel detector is recorded as a second image;
and the selecting module is used for selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
13. A digital radiography apparatus, characterized in that it comprises:
a processor;
a memory for storing the processor-executable instructions;
the processor is configured to:
before an image is collected, respectively detecting whether a first flat panel detector and a second flat panel detector are in a free use state, wherein the free use state refers to that the first flat panel detector and the second flat panel detector are located at any positions except a designated position of DR equipment;
when the first flat panel detector and the second flat panel detector are both in a free use state, activating the first flat panel detector and the second flat panel detector to enable the first flat panel detector and the second flat panel detector to respectively acquire images, recording the image acquired by the first flat panel detector as a first image, and recording the image acquired by the second flat panel detector as a second image;
and selecting a target image from the first image and the second image according to the gray information of the first image and the gray information of the second image.
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