CN107203959A - Image acquiring method, device and digital radiography equipment - Google Patents
Image acquiring method, device and digital radiography equipment Download PDFInfo
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- CN107203959A CN107203959A CN201710624687.XA CN201710624687A CN107203959A CN 107203959 A CN107203959 A CN 107203959A CN 201710624687 A CN201710624687 A CN 201710624687A CN 107203959 A CN107203959 A CN 107203959A
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- flat panel
- image
- panel detector
- use state
- free use
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0007—Image acquisition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10116—X-ray image
Abstract
The embodiments of the invention provide a kind of image acquiring method, device and digital radiography equipment.The embodiment of the present invention passes through before collection image, detect whether the first flat panel detector and the second flat panel detector are in free use state respectively, when the two is all in free use state, both activation, the first image and the second image are gathered respectively, and half-tone information and the half-tone information of the second image according to the first image, target image is chosen from the first image and the second image, so that whole image acquisition process is carried out automatically, reduce artificial operation, so as to improve the intelligence degree of DR equipment, and due to need not manually operate, also save the time, so as to improve operating efficiency of the DR equipment in terms of image acquisition, solve to a certain extent image acquisitions scheme of the prior art manually operate it is more, used time is longer, the problem of causing the relatively low intelligence degree of DR equipment and relatively low operating efficiency.
Description
【Technical field】
This programme is related to technical field of image processing, more particularly to a kind of image acquiring method, device and Digitized X-ray
Photographic equipment.
【Background technology】
DR (Digital Radiography, digital radiography) equipment is a kind of important detection device.DR is set
The standby image information that X-ray is gathered using flat panel detector (abbreviation flat board), is converted to digital picture after processing.
Wherein, double free flat board DR equipment are a kind of DR equipment more commonly used at present.Double free flat board DR equipment have
Two free flat panel detectors, two flat panel detectors have corresponding specified location respectively in DR equipment.Using
When, flat panel detector can be arranged in specified location and carry out IMAQ, this state is referred to as non-free use state, because
Position for now flat panel detector is immovable.When in use, flat panel detector can also be lifted down from specified location,
The optional position being placed in addition to specified location carries out IMAQ, that is to say, that can arbitrarily move flat panel detector, this state
Referred to as free use state.
In the DR equipment with double free flat boards, when two flat panel detectors are all in free use state, it is necessary to
User determines which flat panel detector is that the flat panel detector for needing work (needs to perform IMAQ times by manual type
The flat panel detector of business), then select flat panel detector by being manually entered information in DR equipment interfaces, DR equipment according to
The selection at family activates corresponding flat panel detector, and IMAQ is carried out by the flat panel detector activated.This image acquisitions scheme is needed
Want more artificial operation, therefore intelligence degree is relatively low, also, because the artificial operation used time is longer, cause operating efficiency compared with
It is low.
【The content of the invention】
In view of this, this programme embodiment is set there is provided a kind of image acquiring method, device and digital radiography
It is standby, manually operate more to solve image acquisitions scheme of the prior art, the used time is longer, causes the intelligent journey of DR equipment
The problem of spending relatively low and relatively low operating efficiency.
In a first aspect, this programme embodiment provides a kind of image acquiring method, applied to including the first flat panel detector and
The digital radiography DR equipment of second flat panel detector, methods described includes：
Before collection image, detect whether first flat panel detector and second flat panel detector are in respectively
Free use state, the free use state refers to the state that can arbitrarily move；
When first flat panel detector and second flat panel detector are all in free use state, activation is described
First flat panel detector and second flat panel detector, so that first flat panel detector and second flat panel detector
IMAQ is carried out respectively, and the image that first flat panel detector is gathered is designated as the first image, the second flat board detection
The image of device collection is designated as the second image；
According to the half-tone information of described first image and the half-tone information of second image, from described first image and institute
State in the second image and choose target image.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, detect institute respectively
State the first flat panel detector and whether second flat panel detector is in free use state, including：
According to the current corresponding first position information of first flat panel detector, judge that first flat panel detector is
It is no to be in free use state, and according to the current corresponding second place information of second flat panel detector, judge described
Whether the second flat panel detector is in free use state.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, described first is flat
Partitioned detector has the first specified location in the DR equipment；
The first position information is the positional information where presently described first flat panel detector；
According to the current corresponding first position information of first flat panel detector, judge that first flat panel detector is
No to be in before free use state, methods described also includes：According to the detection radiation direction of the DR equipment, described the is obtained
One positional information；
According to the current corresponding first position information of first flat panel detector, judge that first flat panel detector is
It is no be in free use state, including：
Judge whether the first position indicated by the first position information is consistent with first specified location；
If the first position and first specified location indicated by the first position information are inconsistent, described is determined
One flat panel detector is in free use state, or, if first position indicated by the first position information and described the
One specified location is consistent, determines that first flat panel detector is not in free use state.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, described second is flat
Partitioned detector has the second specified location in DR equipment；
The second place information is the positional information where presently described second flat panel detector；
According to the current corresponding second place information of second flat panel detector, judge that second flat panel detector is
No to be in before free use state, methods described also includes：
According to the detection radiation direction of the DR equipment, the second place information is obtained；
According to the current corresponding second place information of second flat panel detector, judge that second flat panel detector is
It is no be in free use state, including：
Judge whether the second place indicated by the second place information is consistent with second specified location；
If the second place and second specified location indicated by the second place information are inconsistent, described is determined
Two flat panel detectors are in free use state, or, if the second place indicated by the second place information and described the
Two specified locations are consistent, determine that second flat panel detector is not in free use state.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, described first is flat
Partitioned detector has the first specified location in DR equipment；
Whether the first position information is used to indicate presently described first flat panel detector in first specified location；
According to the current corresponding first position information of first flat panel detector, judge that first flat panel detector is
No to be in before free use state, methods described also includes：
Detect whether first specified location is currently provided with first flat panel detector, to obtain described first
Confidence ceases；
According to the current corresponding first position information of first flat panel detector, judge that first flat panel detector is
It is no be in free use state, including：
If the first position information indicates presently described first flat panel detector not in first specified location, it is determined that
First flat panel detector is in free use state, or, if the first position information indicates that presently described first is flat
Partitioned detector determines that first flat panel detector is not in free use state in first specified location.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, described second is flat
Partitioned detector has the second specified location in DR equipment；
Whether the second place information is used to indicate presently described second flat panel detector in second specified location；
According to the current corresponding second place information of second flat panel detector, judge that second flat panel detector is
No to be in before free use state, methods described also includes：
Detect whether second specified location is currently provided with second flat panel detector, to obtain the second
Confidence ceases；
According to the current corresponding second place information of second flat panel detector, judge that second flat panel detector is
It is no be in free use state, including：
If the second place information indicates presently described second flat panel detector not in second specified location, it is determined that
Second flat panel detector is in free use state, or, if the second place information indicates that presently described second is flat
Partitioned detector determines that second flat panel detector is not in free use state in second specified location.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, according to described the
The half-tone information of one image and second image, target image is chosen from described first image and second image, bag
Include：
Obtain the first gray value of at least one the first specified pixel point in described first image；
Determine the second specified pixel point corresponding with least one described first specified pixel point, institute in second image
The quantity for stating the second specified pixel point is equal with the quantity of the first specified pixel point；
Obtain the second gray value of the second specified pixel point in second image；
First gray value is compared correspondingly with second gray value, obtains and is more than the corresponding second ash
The number of first gray value of angle value；
According to the relation between the number and the quantity of the first specified pixel point, from described first image and described
Target image is chosen in second image.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, according to described
Several relations between the quantity of the first specified pixel point, target is chosen from described first image and second image
Image, including：
Obtain the ratio between the quantity of the number and the first specified pixel point；
If the ratio is more than or equal to designated value, chooses described first image and be used as target image；
If the ratio is less than the designated value, chooses second image and be used as target image.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, according to described the
The half-tone information of one image and second image, target image is chosen from described first image and second image, bag
Include：
The average gray value of all pixels point in described first image is obtained, to be used as the first average gray value；
The average gray value of all pixels point in second image is obtained, to be used as the second average gray value；
Compare first average gray value and second average gray value；
When first average gray value is more than second average gray value, chooses described first image and be used as target
Image；
When first average gray value is less than second average gray value, chooses second image and be used as target
Image.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, methods described is also
Including：
Show the target image.
Aspect as described above and any possible implementation, it is further provided a kind of implementation, methods described is also
Including：
The target image is stored, and deletes the non-targeted figure among both described first image and second image
Picture.
Second aspect, this programme embodiment provides a kind of image acquiring device, be arranged at including the first flat panel detector and
The digital radiography DR equipment of second flat panel detector, described device includes：
Detection module, for before collection image, first flat panel detector and second flat board to be detected respectively
Whether detector is in free use state, and the free use state refers to the state that can arbitrarily move；
Active module, in first flat panel detector and second flat panel detector all in freely using shape
During state, first flat panel detector and second flat panel detector are activated, so that first flat panel detector and described
Second flat panel detector carries out IMAQ respectively, and the image that first flat panel detector is gathered is designated as the first image, institute
The image for stating the collection of the second flat panel detector is designated as the second image；
Module is chosen, for the half-tone information according to described first image and the half-tone information of second image, from institute
State in the first image and second image and choose target image.
The third aspect, this programme embodiment provides a kind of digital radiography equipment, and the equipment includes：
Processor；
Memory for storing the processor-executable instruction；
The processor is configured as：
Before collection image, detect whether first flat panel detector and second flat panel detector are in respectively
Free use state, the free use state refers to the state that can arbitrarily move；
When first flat panel detector and second flat panel detector are all in free use state, activation is described
First flat panel detector and second flat panel detector, so that first flat panel detector and second flat panel detector
IMAQ is carried out respectively, and the image that first flat panel detector is gathered is designated as the first image, the second flat board detection
The image of device collection is designated as the second image；
According to the half-tone information of described first image and the half-tone information of second image, from described first image and institute
State in the second image and choose target image.
The embodiment of the present invention has the advantages that：
The embodiment of the present invention, by the way that before collection image, the first flat panel detector and the detection of the second flat board are detected respectively
Whether device is in free use state, when the first flat panel detector and the second flat panel detector are all in free use state,
The first flat panel detector and the second flat panel detector are activated, the first image and the second image are gathered respectively, and according to the first figure
The half-tone information of the half-tone information of picture and the second image, target image is chosen from the first image and the second image so that whole
Image acquisition procedures are carried out automatically by DR equipment, it is not necessary to determine and select to need the flat board of work to detect by manually operating
Device, reduces artificial operation, so as to improve the intelligence degree of DR equipment, and due to need not manually operate, also saves
Time, so as to improve operating efficiency of the DR equipment in terms of image acquisition.
【Brief description of the drawings】
, below will be attached to what is used required in embodiment in order to illustrate more clearly of the technical scheme of this programme embodiment
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of this programme, for this area
For those of ordinary skill, without having to pay creative labor, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the first pass exemplary plot of image acquiring method provided in an embodiment of the present invention.
Fig. 2 is the second procedure exemplary plot of image acquiring method provided in an embodiment of the present invention.
Fig. 3 is the 3rd flow example figure of image acquiring method provided in an embodiment of the present invention.
Fig. 4 is the functional block diagram of image acquiring device provided in an embodiment of the present invention.
Fig. 5 is the simplified block diagram of digital radiography equipment.
【Embodiment】
In order to be better understood from the technical scheme of this programme, this programme embodiment is retouched in detail below in conjunction with the accompanying drawings
State.
It will be appreciated that described embodiment is only a part of embodiment of this programme, rather than whole embodiments.Base
Embodiment in this programme, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
Its embodiment, belongs to the scope of this programme protection.
The term used in this programme embodiment is the purpose only merely for description specific embodiment, and is not intended to be limiting
This programme." one kind ", " described " and "the" of singulative used in this programme embodiment and appended claims
It is also intended to including most forms, unless context clearly shows that other implications.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while there is A and B, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining " or " in response to detection ".Similarly, depending on linguistic context, phrase " if it is determined that " or " if detection
(condition or event of statement) " can be construed to " when it is determined that when " or " in response to determine " or " when the detection (condition of statement
Or event) when " or " in response to detection (condition or event of statement) ".
Fig. 1 is the first pass exemplary plot of image acquiring method provided in an embodiment of the present invention.As shown in figure 1, this implementation
In example, image acquiring method is applied to include the DR equipment of the first flat panel detector and the second flat panel detector, and this method can be with
Comprise the following steps：
S101, before collection image, detects whether the first flat panel detector and the second flat panel detector are in certainly respectively
By use state, free use state refers to the state that can arbitrarily move.
S102, when the first flat panel detector and the second flat panel detector are all in free use state, activation first is flat
Partitioned detector and the second flat panel detector, so that the first flat panel detector and the second flat panel detector carry out IMAQ respectively,
The image that first flat panel detector is gathered is designated as the first image, and the image of the second flat panel detector collection is designated as the second image.
S103, according to the half-tone information of the first image and the half-tone information of the second image, from the first image and the second image
Middle selection target image.
The use state of DR equipment middle plateform detectors has two kinds, i.e., free use state and non-free use state.
Under non-free use state, the position of flat panel detector is fixed on the specified location in DR equipment, and flat panel detector needs
Specified location carries out IMAQ.Under free use state, the position of flat panel detector can arbitrarily be moved, at this point it is possible to
Flat panel detector is placed on any position in addition to specified location and carries out IMAQ.That is, being used non-free
Under state, user can not select the position of flat panel detector progress IMAQ, and under free use state, user can select
Select the position that flat panel detector carries out IMAQ.
, will when detecting the first flat panel detector and the second flat panel detector all in free use state in S102
First flat panel detector and the second flat panel detector are all activated, and the first flat panel detector and the second flat panel detector is entered respectively
Row IMAQ, obtains the first image of the first flat panel detector collection and the second image of the second flat panel detector collection.This
Sample, no matter which in the first flat panel detector and the second flat panel detector is the flat panel detector for needing work, it is necessary to work
The flat panel detector of work is all activated.So, among the first image and the second image that obtain, one of them is exactly that needs are adopted
The target image of collection.It is then possible to pick out target image among the first image and the second image by step S103.
Using DR equipment carry out IMAQ when, it is necessary to by DR equipment launch X-ray bulb position and needs
The position of the flat panel detector (namely needing the flat panel detector of work) of work, is fixed according to specified mode, to protect
The X-ray of bulb transmitting is demonstrate,proved after transmission overscanning target, can be irradiated to needs the flat panel detector of work, so that needing
The flat panel detector of work being capable of accurate acquisition image needed for.Accordingly, it would be desirable to the transmission that the flat panel detector of work is received
X-ray, the X-ray of transmission that the flat panel detector than not needing work is received is more.
And how much the X-ray for the transmission that flat panel detector is received can be reflected in the half-tone information of collection image.From
Target image is selected in first image and the second image.In this manner it is possible to determine that flat panel detector is received according to half-tone information
Light how much, further according to receive light how much determinations need the flat panel detector of work, then further according to determination at
The need for the flat panel detector that works, determine target image.Therefore, can be according to the half-tone information of the first image in S103
With the half-tone information of the second image, target image is chosen from the first image and the second image.
In embodiment illustrated in fig. 1, double free flat board DR equipment are judging two flat panel detectors all in freely using
During state, automatic two flat panel detectors of activation carry out IMAQ, then according to two flat panel detector acquired images
Half-tone information, automatically determine target image, whole image acquisition process is all carried out automatically by DR equipment, it is not necessary to passed through
Artificial operation is determined and selection needs the flat panel detector of work, therefore reduces artificial operation, so as to improve DR equipment
Intelligence degree, and due to need not manually operate, the time is also saved, so as to improve DR equipment in terms of image acquisition
Operating efficiency.
In an exemplary implementation process, detect whether the first flat panel detector and the second flat panel detector are located respectively
In free use state, it can include：According to the current corresponding first position information of the first flat panel detector, the first flat board is judged
Whether detector is in free use state, and according to the current corresponding second place information of the second flat panel detector, judges
Whether the second flat panel detector is in free use state.
In an exemplary implementation process, the first flat panel detector has the first specified location in DR equipment；The
One positional information is the positional information where current first flat panel detector；According to the first flat panel detector current corresponding first
Positional information, judges whether the first flat panel detector is in before free use state, and image acquiring method can also include：Root
According to the detection radiation direction of DR equipment, first position information is obtained；According to the current corresponding first position of the first flat panel detector
Information, judges whether the first flat panel detector is in free use state, including：Judge first indicated by the information of first position
Whether position is consistent with the first specified location；If the first position indicated by the information of first position is differed with the first specified location
Cause, determine that the first flat panel detector is in free use state, or, if first position indicated by the information of first position and the
One specified location is consistent, determines that the first flat panel detector is not in free use state.
Wherein, detection light here refers to X-ray.Due to needing the flat panel detector of work to be penetrated with the transmitting X of DR equipment
The bulb of line has the position relationship specified, and detects that light is issued from bulb, as such, it is desirable to the flat board detection of work
Device and the flat panel detector for not needing work, all the detection radiation direction with DR equipment have certain relation.For example, it is desired to work
The flat panel detector of work is vertical with detection radiation direction, and so, the area that flat panel detector receives light is big, the light of reception
Line is more.Flat panel detector without work is not vertical with detection radiation direction, and so, flat panel detector receives the face of light
Product is small, and the light of reception is few.It therefore, it can the detection radiation direction according to DR equipment, to obtain corresponding to flat panel detector
Positional information.
In an exemplary implementation process, the second flat panel detector has the second specified location in DR equipment；The
Two positional informations are the positional information where current second flat panel detector；According to the second flat panel detector current corresponding second
Positional information, judges whether the second flat panel detector is in before free use state, and image acquiring method can also include：Root
According to the detection radiation direction of DR equipment, second place information is obtained；According to the current corresponding second place of the second flat panel detector
Information, judges whether the second flat panel detector is in free use state, including：Judge second indicated by the information of the second place
Whether position is consistent with the second specified location；If the second place indicated by the information of the second place is differed with the second specified location
Cause, determine that the second flat panel detector is in free use state, or, if the second place indicated by the information of the second place and the
Two specified locations are consistent, determine that the second flat panel detector is not in free use state.
In an exemplary implementation process, the first flat panel detector has the first specified location in DR equipment；The
Whether one positional information is used to indicate current first flat panel detector in the first specified location；It is current according to the first flat panel detector
Corresponding first position information, judges whether the first flat panel detector is in before free use state, and image acquiring method is also
It can include：Detect whether the first specified location is currently provided with the first flat panel detector, to obtain first position information；According to
The current corresponding first position information of first flat panel detector, judges whether the first flat panel detector is in free use state,
Including：If first position information indicates that current first flat panel detector, not in the first specified location, determines the first flat panel detector
In free use state, or, if first position information indicates current first flat panel detector in the first specified location, it is determined that
First flat panel detector is not in free use state.
The difference of free use state and non-free use state, be flat panel detector gather image when position whether
It is the specified location in the DR equipment corresponding to flat panel detector., can be by detecting corresponding to flat panel detector based on this
Whether the specified location in DR equipment is provided with flat panel detector, to determine the use state residing for flat panel detector.Work as flat board
When the specified location in DR equipment corresponding to detector is provided with flat panel detector, it may be determined that flat panel detector be in it is non-from
By use state., can be true when the specified location in the DR equipment corresponding to flat panel detector is not installed with flat panel detector
Allocate partitioned detector and be in free use state.
Illustrate.Assuming that the specified location in the first flat panel detector correspondence DR equipment is position A, the detection of the second flat board
Specified location in device correspondence DR equipment is position B.When detecting flat panel detector at the A of position, illustrate that the first flat board is visited
Survey device and be currently mounted in position A, therefore, the first flat panel detector is currently at non-free use state.If in position A
Place does not detect flat panel detector, illustrates the first flat panel detector currently without installed in position A, therefore, the first flat board is visited
Survey device and be currently at free use state.
Similarly, when detecting flat panel detector at the B of position, illustrate that the second flat panel detector is currently mounted in position
B's, therefore, the second flat panel detector is currently at non-free use state.If not detecting flat board detection at the B of position
Device, illustrates the second flat panel detector currently without installed in position B, therefore, the second flat panel detector, which is currently at, freely to be used
State.
In an exemplary implementation process, the second flat panel detector has the second specified location in DR equipment；The
Whether two positional informations are used to indicate current second flat panel detector in the second specified location；It is current according to the second flat panel detector
Corresponding second place information, judges whether the second flat panel detector is in before free use state, and image acquiring method is also
Including：Detect whether the second specified location is currently provided with the second flat panel detector, to obtain second place information；According to second
The current corresponding second place information of flat panel detector, judges whether the second flat panel detector is in free use state, including：
If second place information indicates current second flat panel detector not in the second specified location, determine that the second flat panel detector is in certainly
By use state, or, if second place information indicates that current second flat panel detector, in the second specified location, determines that second is flat
Partitioned detector is not in free use state.
In an exemplary implementation process, according to the first image and the half-tone information of the second image, from the first image
Target image is chosen with the second image, can be included：Obtain first of at least one the first specified pixel point in the first image
Gray value；The second specified pixel point corresponding with least one first specified pixel point in the second image is determined, second specifies picture
The quantity of vegetarian refreshments is equal with the quantity of the first specified pixel point；Obtain the second gray scale of the second specified pixel point in the second image
Value；First gray value is compared correspondingly with the second gray value, the first ash more than corresponding second gray value is obtained
The number of angle value；According to the relation between number and the quantity of the first specified pixel point, selected from the first image and the second image
Take target image.
In an exemplary implementation process, according to the relation between number and the quantity of the first specified pixel point, from
Target image is chosen in first image and the second image, can be included：Obtain between number and the quantity of the first specified pixel point
Ratio；If ratio is more than or equal to designated value, chooses the first image and be used as target image；If ratio is less than designated value, choose
Second image is used as target image.
The size of two flat panel detectors of DR equipment is typically identical, in this case, two flat panel detectors
With identical coordinate, therefore, coordinate identical point is corresponding specified pixel point on two flat panel detectors.By by two
The gray value of a number of specified pixel point is compared on the image of flat panel detector collection, can know two flat board spies
The overall gray value situation of the image of device collection is surveyed, and then target image is selected according to overall gray value situation.So, due to not
Need to be compared the gray value of pixel all in the first image and the second image, can greatly reduce need to be to be processed
Data volume, so as to improve processing speed.
Illustrate.Assuming that the pixel quantity in pixel quantity and the second image in the first image is all 100,000
It is individual, 2000 the first pixels can be chosen in the first image, then according to the coordinate of 2000 first pixels,
Corresponding 2000 the second pixels are found in two images, by the second of the first gray value of the first pixel and the second pixel
Gray value is compared correspondingly.Assuming that comparative result is, there are 1900 the first gray values to be more than corresponding second gray scale
Value, designated value is 90%, then, because 1900 and 2000 ratio is 95%, more than 90%, therefore choose the first image conduct
Target image., it is necessary to be compared to 2000 pairs of data during being somebody's turn to do, it is compared, greatly reduces compared to 100,000 data
Data volumes to be processed are needed, so as to improve processing speed.
In an exemplary implementation process, according to the first image and the half-tone information of the second image, from the first image
Target image is chosen with the second image, including：The average gray value of all pixels point in the first image is obtained, to be used as first
Average gray value；The average gray value of all pixels point in the second image is obtained, to be used as the second average gray value；Compare first
Average gray value and the second average gray value；When the first average gray value is more than the second average gray value, the first image is chosen
It is used as target image；When the first average gray value is less than the second average gray value, chooses the second image and be used as target image.
Herein, due to the average gray value that the first average gray value is all pixels point in the first image, the second average ash
Angle value is the average gray value of all pixels point in the second image, utilizes the first average gray value and the ratio of the second average gray value
Relatively result chooses target image, can more accurately select target image.
Fig. 2 is the first pass exemplary plot of image acquiring method provided in an embodiment of the present invention.As shown in Fig. 2 this implementation
In example, image acquiring method is applied to include the DR equipment of the first flat panel detector and the second flat panel detector, and this method can be with
Comprise the following steps：
S201, before collection image, detects whether the first flat panel detector and the second flat panel detector are in certainly respectively
By use state, free use state refers to the state that can arbitrarily move.
S202, when the first flat panel detector and the second flat panel detector are all in free use state, activation first is flat
Partitioned detector and the second flat panel detector, so that the first flat panel detector and the second flat panel detector carry out IMAQ respectively,
The image that first flat panel detector is gathered is designated as the first image, and the image of the second flat panel detector collection is designated as the second image.
S203, according to the half-tone information of the first image and the half-tone information of the second image, from the first image and the second image
Middle selection target image.
S204, display target image.
Embodiment illustrated in fig. 2, after target image is selected, shows to target image, user can be made timely
See target image.Before S204, either after S204 or while S204 is performed, target can be further stored
Image, and delete the non-object image among both the first image and the second image.
Fig. 3 is the first pass exemplary plot of image acquiring method provided in an embodiment of the present invention.As shown in figure 3, this implementation
In example, image acquiring method is applied to include the DR equipment of the first flat panel detector and the second flat panel detector, and this method can be with
Comprise the following steps：
S301, before collection image, detects whether the first flat panel detector and the second flat panel detector are in certainly respectively
By use state, free use state refers to the state that can arbitrarily move.
S302, when the first flat panel detector and the second flat panel detector are all in free use state, activation first is flat
Partitioned detector and the second flat panel detector, so that the first flat panel detector and the second flat panel detector carry out IMAQ respectively,
The image that first flat panel detector is gathered is designated as the first image, and the image of the second flat panel detector collection is designated as the second image.
S303, according to the half-tone information of the first image and the half-tone information of the second image, from the first image and the second image
Middle selection target image.
S304, stores target image, and delete the non-object image among both the first image and the second image.
Embodiment illustrated in fig. 3, after target image is selected, stores target image, and delete the first image and second
Non-object image among both images, the useful data that DR equipment is collected can be preserved in time, for user when needed
Taking-up is used.
Image acquiring method provided in an embodiment of the present invention, by before collection image, detecting that the first flat board is visited respectively
Survey device and whether the second flat panel detector is in free use state, all locate in the first flat panel detector and the second flat panel detector
When free use state, the first flat panel detector of activation and the second flat panel detector gather the first image and the second figure respectively
Picture, and half-tone information and the half-tone information of the second image according to the first image, choose from the first image and the second image
Target image so that whole image acquisition process is carried out automatically by DR equipment, it is not necessary to determine and select to need by manually operating
The flat panel detector to be worked, reduces artificial operation, so that the intelligence degree of DR equipment is improved, and due to not needing
Artificial operation, also saves the time, so as to improve operating efficiency of the DR equipment in terms of image acquisition.
The embodiment of the present invention additionally provides a kind of image acquiring device, and the image acquiring device can realize previous embodiment
Each step of middle image acquiring method.
Fig. 4 is the functional block diagram of image acquiring device provided in an embodiment of the present invention.As shown in figure 4, in the present embodiment,
Image acquiring device is arranged at the digital radiography DR equipment including the first flat panel detector and the second flat panel detector,
Image acquiring device can include：
Detection module 410, for before collection image, the first flat panel detector and the second flat panel detector to be detected respectively
Whether free use state is in, free use state refers to the state that can arbitrarily move.
Active module 420, for when the first flat panel detector and the second flat panel detector are all in free use state,
The first flat panel detector and the second flat panel detector are activated, so that the first flat panel detector and the second flat panel detector are carried out respectively
IMAQ, the image that the first flat panel detector is gathered is designated as the first image, and the image of the second flat panel detector collection is designated as
Second image.
Module 430 is chosen, for the half-tone information according to the first image and the half-tone information of the second image, from the first image
Target image is chosen with the second image.
In an exemplary implementation process, detection module 410 for detecting the first flat panel detector and respectively
, can be specifically for when whether two flat panel detectors are in free use state：It is currently corresponding according to the first flat panel detector
First position information, judges whether the first flat panel detector is in free use state, and is worked as according to the second flat panel detector
Preceding corresponding second place information, judges whether the second flat panel detector is in free use state.
In an exemplary implementation process, the first flat panel detector has the first specified location in DR equipment；The
One positional information is the positional information where presently described first flat panel detector；Image acquiring device can also include：First
Acquisition module, for the detection radiation direction according to the DR equipment, obtains the first position information；Detection module 410 exists
Freely make for according to the current corresponding first position information of the first flat panel detector, judging whether the first flat panel detector is in
When using state, specifically for：Judge whether the first position indicated by the information of first position is consistent with the first specified location；If the
First position and the first specified location indicated by one positional information is inconsistent, determines that the first flat panel detector is in and freely uses
State, or, if the first position indicated by the information of first position is consistent with the first specified location, determine the first flat panel detector
It is not in free use state.
In an exemplary implementation process, the second flat panel detector has the second specified location in DR equipment；The
Two positional informations are the positional information where current second flat panel detector；Image acquiring device can also include：Second obtains
Module, for the detection radiation direction according to DR equipment, obtains second place information；Detection module 410 is for according to second
The current corresponding second place information of flat panel detector, judges whether second flat panel detector is in free use state
When, specifically for：Judge whether the second place indicated by the information of the second place is consistent with the second specified location；If the second place
The second place and the second specified location indicated by information is inconsistent, determines that the second flat panel detector is in free use state,
Or, if the second place indicated by the information of the second place is consistent with the second specified location, determine that the second flat panel detector is not located
In free use state.
In an exemplary implementation process, the first flat panel detector has the first specified location in DR equipment；The
Whether one positional information is used to indicate presently described first flat panel detector in first specified location；Image acquiring device is also
It can include：First position detection module, for detecting whether the first specified location is currently provided with the first flat panel detector, with
Obtain first position information；Detection module 410 is for according to the current corresponding first position information of the first flat panel detector, sentencing
When whether disconnected first flat panel detector is in free use state, specifically for：If first position information indicates that current first is flat
Partitioned detector determines that the first flat panel detector is in free use state not in the first specified location, or, if first position is believed
Breath indicates that current first flat panel detector, in the first specified location, determines that the first flat panel detector is not in free use state.
In an exemplary implementation process, the second flat panel detector has the second specified location in DR equipment；The
Whether two positional informations are used to indicate current second flat panel detector in the second specified location；Image acquiring device can also be wrapped
Include：Such as figure position detecting module, for detecting whether the second specified location is currently provided with the second flat panel detector, to obtain
Second place information；Detection module 410 is for according to the current corresponding second place information of the second flat panel detector, judging the
When whether two flat panel detectors are in free use state, specifically for：If second place information indicates that current second flat board is visited
Device is surveyed not in the second specified location, determines that the second flat panel detector is in free use state, or, if second place information refers to
Show that current second flat panel detector, in the second specified location, determines that the second flat panel detector is not in free use state.
In an exemplary implementation process, module 430 is chosen for the ash according to the first image and the second image
Information is spent, when choosing target image from the first image and the second image, specifically for：Obtain at least one in the first image
First gray value of 1 specified pixel point；Determine in the second image that corresponding with least one first specified pixel point second specifies
Pixel, the quantity of the second specified pixel point is equal with the quantity of the first specified pixel point；Second obtained in the second image refers to
Second gray value of fixation vegetarian refreshments；First gray value is compared correspondingly with the second gray value, obtains and is more than accordingly
The number of first gray value of the second gray value；According to the relation between number and the quantity of the first specified pixel point, from first
Target image is chosen in image and the second image.
In an exemplary implementation process, module 430 is chosen for according to number and the first specified pixel point
Relation between quantity, when choosing target image from the first image and the second image, specifically for：Number is obtained with first to refer to
Ratio between the quantity of fixation vegetarian refreshments；If ratio is more than or equal to designated value, chooses the first image and be used as target image；If than
Value is less than designated value, chooses the second image and is used as target image.
In an exemplary implementation process, module 430 is chosen for the ash according to the first image and the second image
Information is spent, when choosing target image from the first image and the second image, specifically for：Obtain all pixels point in the first image
Average gray value, to be used as the first average gray value；Obtain the average gray value of all pixels point in the second image, using as
Second average gray value；Compare the first average gray value and the second average gray value；It is more than second in the first average gray value flat
During equal gray value, choose the first image and be used as target image；When the first average gray value is less than the second average gray value, choose
Second image is used as target image.
In an exemplary implementation process, image acquiring device can also include：Display module, for display target
Image.
In an exemplary implementation process, image acquiring device can also include：Storage and removing module, for depositing
Target image is stored up, and deletes the non-object image among both the first image and the second image.
The image acquiring method in previous embodiment, this implementation are able to carry out due to the image acquiring device in the present embodiment
The part that example is not described in detail, refers to the related description to image acquiring method in previous embodiment.
Image acquiring device provided in an embodiment of the present invention, by before collection image, detecting that the first flat board is visited respectively
Survey device and whether the second flat panel detector is in free use state, all locate in the first flat panel detector and the second flat panel detector
When free use state, the first flat panel detector of activation and the second flat panel detector gather the first image and the second figure respectively
Picture, and half-tone information and the half-tone information of the second image according to the first image, choose from the first image and the second image
Target image so that whole image acquisition process is carried out automatically by DR equipment, it is not necessary to determine and select to need by manually operating
The flat panel detector to be worked, reduces artificial operation, so that the intelligence degree of DR equipment is improved, and due to not needing
Artificial operation, also saves the time, so as to improve operating efficiency of the DR equipment in terms of image acquisition.
The embodiment of the present invention also provides a kind of digital radiography equipment (i.e. DR equipment), and the equipment includes：Processing
Device；Memory for storing processor-executable instruction；Processor is configured as：Before collection image, the is detected respectively
Whether one flat panel detector and the second flat panel detector are in free use state, and free use state refers to the shape that can arbitrarily move
State；When the first flat panel detector and the second flat panel detector are all in free use state, activation the first flat panel detector and
Second flat panel detector, so that the first flat panel detector and the second flat panel detector carry out IMAQ respectively, by the first flat board
The image of detector collection is designated as the first image, and the image of the second flat panel detector collection is designated as the second image；According to the first figure
The half-tone information of the half-tone information of picture and the second image, target image is chosen from the first image and the second image.
Fig. 5 is the simplified block diagram of digital radiography equipment 500.Referring to Fig. 5, the digital radiography equipment
500 can include the processor 501 that be connected with one or more data storage facilities, and the data storage facility can include storing
Medium 506 and internal storage location 504.Digital radiography equipment 500 can also include input interface 505 and output interface
507, for being communicated with another device or system.Interior deposit receipt is storable in by the CPU of processor 501 program codes performed
In member 504 or storage medium 506.
Processor 501 in digital radiography equipment 500, which is called, is stored in internal storage location 504 or storage medium 506
Program code, perform following each step：
Before collection image, detect whether the first flat panel detector and the second flat panel detector are in respectively and freely use
State, free use state refers to the state that can arbitrarily move；
When the first flat panel detector and the second flat panel detector are all in free use state, activation the first flat board detection
Device and the second flat panel detector, so that the first flat panel detector and the second flat panel detector carry out IMAQ respectively, by first
The image of flat panel detector collection is designated as the first image, and the image of the second flat panel detector collection is designated as the second image；
According to the half-tone information of the first image and the half-tone information of the second image, chosen from the first image and the second image
Target image.
In above-described embodiment, storage medium can be read-only storage (Read-Only Memory, ROM), or readable
Write, for example hard disk, flash memory.Internal storage location can be random access memory (Random Access Memory, RAM).Internal memory
Unit can be with processor physical integration or integrated in memory or being configured to single unit.
Processor is the control centre of the said equipment (equipment is above-mentioned server or above-mentioned client), and at offer
Device is managed, for execute instruction, carrying out interrupt operation, there is provided clocking capability and various other functions.Alternatively, processor bag
Include the CPU 0 and CPU 1 shown in one or more CPU (CPU), such as Fig. 5.The said equipment includes one
Or multiple processors.Processor can be monokaryon (single CPU) processor or multinuclear (multi -CPU) processor.Unless otherwise stated,
It is described as the part of such as processor or memory for performing task and can realize as universal component, it is temporarily used for given
Time performs task, or is embodied as being manufactured specifically for the particular elements of the execution task.Terminology used herein " processor "
Refer to one or more devices, circuit and/or process cores, for processing data, such as computer program instructions.
It is storable in by the CPU of the processor program codes performed in internal storage location or storage medium.Alternatively, it is stored in
Program code in storage medium can be copied into internal storage location and be performed so as to the CPU of processor.Processor is executable at least
One kernel (such as LINUXTM、UNIXTM、WINDOWSTM、ANDROIDTM、IOSTM), it is well known that the kernel is used for by control
The communication of execution, control and the peripheral unit of other programs or process and the use of control computer device resource is made to control
The operation of the said equipment.
Said elements in the said equipment can be connected to each other by bus, bus such as data/address bus, address bus, control
One of bus, expansion bus and local bus or its any combination.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments that this programme is provided, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, for example, multiple units or group
Part can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown
Or the coupling each other discussed or direct-coupling or communication connection can be by some interfaces, device or unit it is indirect
Coupling is communicated to connect, and can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in this programme each embodiment can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The preferred embodiment of this programme is the foregoing is only, not to limit this programme, all essences in this programme
God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of this programme protection.
Claims (13)
1. a kind of image acquiring method, it is characterised in that applied to including the first flat panel detector and the second flat panel detector
Digital radiography DR equipment, methods described includes：
Before collection image, detect first flat panel detector and second flat panel detector whether in freely respectively
Use state, the free use state refers to the state that can arbitrarily move；
When first flat panel detector and second flat panel detector are all in free use state, activation described first
Flat panel detector and second flat panel detector, so that first flat panel detector and second flat panel detector difference
IMAQ is carried out, the image that first flat panel detector is gathered is designated as the first image, and second flat panel detector is adopted
The image of collection is designated as the second image；
According to the half-tone information of described first image and the half-tone information of second image, from described first image and described
Target image is chosen in two images.
2. according to the method described in claim 1, it is characterised in that detect first flat panel detector and described second respectively
Whether flat panel detector is in free use state, including：
According to the current corresponding first position information of first flat panel detector, judge whether first flat panel detector is located
In free use state, and according to the current corresponding second place information of second flat panel detector, judge described second
Whether flat panel detector is in free use state.
3. method according to claim 2, it is characterised in that
First flat panel detector has the first specified location in the DR equipment；
The first position information is the positional information where presently described first flat panel detector；
According to the current corresponding first position information of first flat panel detector, judge whether first flat panel detector is located
Before free use state, methods described also includes：According to the detection radiation direction of the DR equipment, described first is obtained
Confidence ceases；
According to the current corresponding first position information of first flat panel detector, judge whether first flat panel detector is located
In free use state, including：
Judge whether the first position indicated by the first position information is consistent with first specified location；
If the first position and first specified location indicated by the first position information are inconsistent, determine that described first is flat
Partitioned detector is in free use state, or, if the first position indicated by the first position information refers to described first
Determine position consistency, determine that first flat panel detector is not in free use state.
4. method according to claim 2, it is characterised in that
Second flat panel detector has the second specified location in DR equipment；
The second place information is the positional information where presently described second flat panel detector；
According to the current corresponding second place information of second flat panel detector, judge whether second flat panel detector is located
Before free use state, methods described also includes：
According to the detection radiation direction of the DR equipment, the second place information is obtained；
According to the current corresponding second place information of second flat panel detector, judge whether second flat panel detector is located
In free use state, including：
Judge whether the second place indicated by the second place information is consistent with second specified location；
If the second place and second specified location indicated by the second place information are inconsistent, determine that described second is flat
Partitioned detector is in free use state, or, if the second place indicated by the second place information refers to described second
Determine position consistency, determine that second flat panel detector is not in free use state.
5. method according to claim 2, it is characterised in that
First flat panel detector has the first specified location in DR equipment；
Whether the first position information is used to indicate presently described first flat panel detector in first specified location；
According to the current corresponding first position information of first flat panel detector, judge whether first flat panel detector is located
Before free use state, methods described also includes：
Detect whether first specified location is currently provided with first flat panel detector, believed with obtaining the first position
Breath；
According to the current corresponding first position information of first flat panel detector, judge whether first flat panel detector is located
In free use state, including：
If the first position information indicates presently described first flat panel detector not in first specified location, it is determined that described
First flat panel detector is in free use state, or, if the first position information indicates that presently described first flat board is visited
Device is surveyed in first specified location, determines that first flat panel detector is not in free use state.
6. method according to claim 2, it is characterised in that
Second flat panel detector has the second specified location in DR equipment；
Whether the second place information is used to indicate presently described second flat panel detector in second specified location；
According to the current corresponding second place information of second flat panel detector, judge whether second flat panel detector is located
Before free use state, methods described also includes：
Detect whether second specified location is currently provided with second flat panel detector, to obtain the second confidence
Breath；
According to the current corresponding second place information of second flat panel detector, judge whether second flat panel detector is located
In free use state, including：
If the second place information indicates presently described second flat panel detector not in second specified location, it is determined that described
Second flat panel detector is in free use state, or, if the second place information indicates that presently described second flat board is visited
Device is surveyed in second specified location, determines that second flat panel detector is not in free use state.
7. according to the method described in claim 1, it is characterised in that according to described first image and the gray scale of second image
Information, target image is chosen from described first image and second image, including：
Obtain the first gray value of at least one the first specified pixel point in described first image；
Determine the second specified pixel point corresponding with least one described first specified pixel point in second image, described
The quantity of 2 specified pixel points is equal with the quantity of the first specified pixel point；
Obtain the second gray value of the second specified pixel point in second image；
First gray value is compared correspondingly with second gray value, obtains and is more than corresponding second gray value
The first gray value number；
According to the relation between the number and the quantity of the first specified pixel point, from described first image and described second
Target image is chosen in image.
8. method according to claim 7, it is characterised in that according to the number and the number of the first specified pixel point
Relation between amount, target image is chosen from described first image and second image, including：
Obtain the ratio between the quantity of the number and the first specified pixel point；
If the ratio is more than or equal to designated value, chooses described first image and be used as target image；
If the ratio is less than the designated value, chooses second image and be used as target image.
9. according to the method described in claim 1, it is characterised in that according to described first image and the gray scale of second image
Information, target image is chosen from described first image and second image, including：
The average gray value of all pixels point in described first image is obtained, to be used as the first average gray value；
The average gray value of all pixels point in second image is obtained, to be used as the second average gray value；
Compare first average gray value and second average gray value；
When first average gray value is more than second average gray value, chooses described first image and be used as target figure
Picture；
When first average gray value is less than second average gray value, chooses second image and be used as target figure
Picture.
10. according to the method described in claim 1, it is characterised in that methods described also includes：
Show the target image.
11. the method according to claim 1 or 10, it is characterised in that methods described also includes：
The target image is stored, and deletes the non-object image among both described first image and second image.
12. a kind of image acquiring device, it is characterised in that be arranged at including the first flat panel detector and the second flat panel detector
Digital radiography DR equipment, described device includes：
Detection module, for before collection image, first flat panel detector and second flat board detection to be detected respectively
Whether device is in free use state, and the free use state refers to the state that can arbitrarily move；
Active module, in first flat panel detector and second flat panel detector all in free use state
When, first flat panel detector and second flat panel detector are activated, so that first flat panel detector and described the
Two flat panel detectors carry out IMAQ respectively, and the image that first flat panel detector is gathered is designated as the first image, described
The image of second flat panel detector collection is designated as the second image；
Module is chosen, for the half-tone information according to described first image and the half-tone information of second image, from described the
Target image is chosen in one image and second image.
13. a kind of digital radiography equipment, it is characterised in that the equipment includes：
Processor；
Memory for storing the processor-executable instruction；
The processor is configured as：
Before collection image, detect first flat panel detector and second flat panel detector whether in freely respectively
Use state, the free use state refers to the state that can arbitrarily move；
When first flat panel detector and second flat panel detector are all in free use state, activation described first
Flat panel detector and second flat panel detector, so that first flat panel detector and second flat panel detector difference
IMAQ is carried out, the image that first flat panel detector is gathered is designated as the first image, and second flat panel detector is adopted
The image of collection is designated as the second image；
According to the half-tone information of described first image and the half-tone information of second image, from described first image and described
Target image is chosen in two images.
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