CN110335326A - A kind of determination method, apparatus, medical imaging equipment and medium for rebuilding data - Google Patents
A kind of determination method, apparatus, medical imaging equipment and medium for rebuilding data Download PDFInfo
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- CN110335326A CN110335326A CN201910591309.5A CN201910591309A CN110335326A CN 110335326 A CN110335326 A CN 110335326A CN 201910591309 A CN201910591309 A CN 201910591309A CN 110335326 A CN110335326 A CN 110335326A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/008—Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction
Abstract
The embodiment of the invention discloses a kind of determination method, apparatus, medical imaging equipment and media for rebuilding data.The determination method includes: the sequence of video images for obtaining target object；The motion state of the target object in sequence of video images is determined based on sequence of video images；The reconstruction data in the raw scanning data of target object are determined according to motion state.The sequence of video images that the embodiment of the present invention passes through acquisition target object；The motion state of the target object in sequence of video images is determined based on sequence of video images；The reconstruction data in the raw scanning data of target object are determined according to motion state, avoid anesthesia and long-time dynamic scan to realize, reduce scanning bring side effect, while obtaining accurate scan data.
Description
Technical field
The present embodiments relate to Biomedical Image processing technology field more particularly to a kind of determination sides for rebuilding data
Method, device, medical imaging equipment and medium.
Background technique
Medical imaging equipment almost can be applied to the inspection at each position of human body, in the diagnosing and treating of clinical disease
Play increasingly important role.
Since the imaging of medical imaging equipment needs the regular hour, during this period user there may be it is autonomous or it is non-from
Main movement, will destroy the consistency and integrality of data for projection in this way, to show various movements in reconstruction image
Artifact, the appearance of motion artifacts will affect the Normal Diagnosis of doctor.In the prior art, the side of the reduction motion artifacts generallyd use
There are two types of formulas, first is that being scanned after anaesthetizing to user, to guarantee that user does not move during the scanning process, second is that being grown
The dynamic scan of time, to eliminate the influence of motion artifacts.
Summary of the invention
The embodiment of the present invention provides a kind of determination method, apparatus, medical imaging equipment and medium for rebuilding data, to realize
Anesthesia and long-time dynamic scan are avoided, reduces scanning bring side effect, while obtaining accurate scan data.
In a first aspect, the embodiment of the invention provides a kind of determination method for rebuilding data, which includes:
Obtain the sequence of video images of target object；
The motion state of the target object in the sequence of video images is determined based on the sequence of video images；
The reconstruction data in the raw scanning data of the target object are determined according to the motion state.
Further, the fortune of the target object in the sequence of video images is determined based on the sequence of video images
Dynamic state, comprising:
Based on at least pixel value of each pixel of two images in the sequence of video images, the video image is constructed
The curve movement of the target object in sequence, the motion state of the target object is determined according to the curve movement.
Further, the fortune of the target object in the sequence of video images is determined based on the sequence of video images
Dynamic state, comprising:
The object detection area of the target object is determined according to the sequence of video images；
Based at least two images and at least target detection described in two images in the sequence of video images
The pixel value of each pixel in region constructs the curve movement of the target object in the object detection area, according to institute
State the motion state that curve movement determines the target object.
Further, the reconstruction data in the raw scanning data of the target object are determined according to the motion state,
Include:
Institute is right when the motion state for obtaining the target object determined according to the curve movement is without motion state
The time duration answered；
The reconstruction data in the raw scanning data of the target object are determined according to the time duration.
Further, the determining method further include:
Motion state when fluctuation amplitude in the curve movement is respectively less than default amplitude thresholds is determined as the target
Object is in without motion state；Alternatively,
Fluctuation amplitude in curve movement in preset durations length is determined as institute for the corresponding motion state of minimum value
It states target object and is in without motion state.
Further, the reconstruction number in the raw scanning data of the target object is determined according to the time duration
According to, comprising:
The time duration is corresponding if the time duration is greater than or equal to preset time threshold
Reconstruction data of the raw scanning data as the target object；Alternatively,
It will at least two sections of institutes if at least the sum of two sections of described time durations are greater than preset time threshold
State reconstruction data of the corresponding raw scanning data of time duration as the target object.
Further, the sequence of video images is one group or multiple groups, and the object detection area is one or more
It is a.
Second aspect, the embodiment of the invention also provides a kind of determining device for rebuilding data, which includes:
Sequence of video images obtains module, for obtaining the sequence of video images of target object；
Moving state determining module, described in being determined in the sequence of video images based on the sequence of video images
The motion state of target object；
Data determining module is rebuild, in the raw scanning data for determining the target object according to the motion state
Reconstruction data.
The third aspect, the embodiment of the invention also provides a kind of medical imaging equipment, which includes:
One or more processors；
Storage device, for storing multiple programs,
When at least one of the multiple program by one or more of processors execute when so that it is one or
Multiple processors realize a kind of determination method for rebuilding data provided by first aspect present invention embodiment.
Fourth aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program realizes a kind of determination side for rebuilding data provided by first aspect present invention embodiment when the program is executed by processor
Method.
The sequence of video images that the embodiment of the present invention passes through acquisition target object；Institute is determined based on the sequence of video images
State the motion state of the target object in sequence of video images；The original of the target object is determined according to the motion state
Reconstruction data in beginning scan data solve the inaccuracy of scan data caused by the motion artifacts generated as user movement
Problem avoids anesthesia and long-time dynamic scan to realize, reduces scanning bring side effect, while obtaining accurately scanning number
According to.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the determination method for reconstruction data that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow chart of determination method for rebuilding data provided by Embodiment 2 of the present invention；
Movement when being without motion state that Fig. 2A is the motion state of illustrative target object provided in an embodiment of the present invention
The schematic diagram of the selection mode of curve；
Fig. 2 B is the scanning interfaces windows that online editing is realized in illustrative graphical interaction provided in an embodiment of the present invention
Schematic diagram；
Fig. 3 is a kind of flow chart of the determination method for reconstruction data that the embodiment of the present invention three provides；
Fig. 3 A is the schematic diagram of scanning interfaces windows provided in an embodiment of the present invention；
Fig. 4 is a kind of structure chart of the determining device for reconstruction data that the embodiment of the present invention four provides；
Fig. 5 is a kind of hardware structural diagram for medical imaging equipment that the embodiment of the present invention five provides.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing to of the invention specific real
Example is applied to be described in further detail.It is understood that specific embodiment described herein is used only for explaining the present invention,
Rather than limitation of the invention.
It also should be noted that only the parts related to the present invention are shown for ease of description, in attached drawing rather than
Full content.It should be mentioned that some exemplary embodiments are described before exemplary embodiment is discussed in greater detail
At the processing or method described as flow chart.Although operations (or step) are described as the processing of sequence by flow chart,
It is that many of these operations can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of operations can be by again
It arranges.The processing can be terminated when its operations are completed, it is also possible to have the additional step being not included in attached drawing.
The processing can correspond to method, function, regulation, subroutine, subprogram etc..
Embodiment one
Fig. 1 is a kind of flow chart of the determination method for reconstruction data that the embodiment of the present invention one provides, and the present embodiment can fit
It is corresponding that period for the motion state detection confirmation target object without motion state to target object obtains the period
The case where scan data is rebuild, this method can be executed by the determining device of reconstruction data, be specifically comprised the following steps:
S110, the sequence of video images for obtaining target object.
Wherein, the sequence of video images is one group or multiple groups
Specifically, in the side PET of 2m PET-CT equipment and the side CT respectively according to two cameras, two camera acquisitions
Image can perform image display being complementary to one another for content, for example, can be clearly seen that target object head in the side PET
Motion conditions, the side CT can be clearly seen that target object lower limb whether motion conditions.Camera is by collected target pair
As and target object sequence of video images being shown in equipment operation in sequence of video images real-time transmission to scanning interfaces windows
The doctor at end sees.Illustratively, the multiple groups video of the different scanning portions of the available target detection object of sequence of video images
Image sequence is carried out while being handled, to save the sweep time of user.Camera obtains sequence of video images, can be optics and takes the photograph
As head or CCD camera etc..
S120, the movement shape that the target object in the sequence of video images is determined based on the sequence of video images
State.
Specifically, being based on sequence of video images, the pixel value of each frame video image in sequence of video images, pixel are calculated
Value represents target object in the motion conditions at current time, that is to say, that the pixel value of each frame video image corresponds to target pair
Motion conditions at the time of as corresponding to the respective frame, it is quasi- by the pixel value and the variation relation of time of each frame video image
Symphysis determines the motion state of target object according to curve movement at the curve movement of target object.
S130, reconstruction data in the raw scanning data of the target object are determined according to the motion state.
Specifically, motion state is that target object has movement and without motion two states, pass through the without motion of target object
Time span corresponding to state may further determine that the raw scanning data of the target object in the time span is corresponding
Data, using the scan data in length this period as the reconstruction data of target object, effective solution scan data exists
The problem of motion artifacts, while avoiding prolonged dynamic scan or anaesthetizing target object and being scanned.
It should be noted that the PET reconstruction regions on the display window and locating plate of sequence of video images can be linkage,
It is set convenient for reconstruction regions range of the doctor to user, but PET reconstruction regions do not appear in scanning interfaces windows, but
It is shown in the corresponding window of locating plate, but the corresponding window of locating plate and scanning interfaces windows are to be simultaneously displayed on a display
In interface, realizes while observing.For example, the acquisition of sequence of video images is set in head, then PET reconstruction regions are also in head
Portion, when the acquisition position of moving video image sequence to chest, then PET reconstruction regions also can automatically be moved to chest, guarantee
Detection motion range and reconstruction scope are consistent, equally, the change in location of PET reconstruction regions, the acquisition of sequence of video images
Position also and then changes.
It is further to note that the acquisition position of multiple sequence of video images can be set, while detected target object
The motion state of different scanning portions, i.e. acquisition multiple groups sequence of video images, multiple groups sequence of video images respectively represent target pair
The different scanning portions of elephant.For example, the acquisition position of the corresponding sequence of video images of each of head, chest and four limbs etc. setting
It sets, then generates multiple reconstruction data to meet clinical needs in single pass, reduce the sweep time of target object, save money
Source.
The sequence of video images that the embodiment of the present invention passes through acquisition target object；Institute is determined based on the sequence of video images
State the motion state of the target object in sequence of video images；The original of the target object is determined according to the motion state
Reconstruction data in beginning scan data solve the inaccuracy of scan data caused by the motion artifacts generated as user movement
Problem avoids anesthesia and long-time dynamic scan to realize, reduces scanning bring side effect, while obtaining accurately scanning number
According to.
Embodiment two
Fig. 2 is a kind of flow chart of determination method for rebuilding data provided by Embodiment 2 of the present invention.It is more than the present embodiment
It states and optimizes based on embodiment, in the present embodiment, step is determined into the video figure based on the sequence of video images
As the motion state of the target object in sequence advanced optimizes are as follows: based at least two width figures in the sequence of video images
The pixel value of each pixel of picture constructs the curve movement of the target object in the sequence of video images, according to described
Curve movement determines the motion state of the target object.On this basis, by step according to motion state determination
Reconstruction data in the raw scanning data of target object advanced optimize are as follows: obtain the institute determined according to the curve movement
The motion state for stating target object time duration corresponding when being without motion state；It is true according to the time duration
Reconstruction data in the raw scanning data of the fixed target object.
Correspondingly, the method for the present embodiment specifically includes:
S210, the sequence of video images for obtaining target object.
S220, based on at least pixel value of each pixel of two images in the sequence of video images, construct the view
The curve movement of the target object in frequency image sequence determines the movement shape of the target object according to the curve movement
State.
Wherein, based on at least pixel value of each pixel of two images in the sequence of video images, the view is constructed
The curve movement of the target object in frequency image sequence, comprising:
Obtain the pixel value of every piece image on the sequence of video images；
The video figure is constructed according to the difference of the pixel value in the sequence of video images of adjacent two images
As the curve movement of the target object in sequence.
When the motion state for the target object that S230, acquisition are determined according to the curve movement is without motion state
Corresponding time duration.
Specifically, be the motion state of illustrative target object provided in an embodiment of the present invention being as shown in Figure 2 A no fortune
Curve movement chooses the schematic diagram of mode when dynamic state, during the scanning process, if there is the curve movement in time duration
Fluctuation amplitude is when being less than default amplitude thresholds or fluctuation amplitude is minimum value in preset durations length in curve movement
When, then determine that the motion state of target object is in without motion state, i.e. R shown in Fig. 2ASTo ReCorresponding time span can
To indicate that curve movement fluctuation amplitude is less than default amplitude thresholds in this section of time span, or indicate in this section of time span
When fluctuation amplitude is minimum value in interior curve movement, RSTo ReCorresponding time span is that the motion state of target object is nothing
The time duration of motion state, while the doctor of alert device operating side meets the acquisition requirement for rebuilding data, stops adopting
Collect data, naturally it is also possible to continue to acquire more without motion data for using, the embodiment of the present invention is without limitation.Its
In, default amplitude thresholds are empirical values, can be used and can achieve the desired results purposeful by those skilled in the art
Attempted obtain.In another embodiment provided by the invention, during the scanning process, the time span of target object is scanned
The time requirement for having met entire scanning process then stops scanning, and is determined reconstruction data according to the data scanned, whole
The time requirement of a scanning process is usually indicated with minute, is likely to from a few minutes to dozens of minutes, is generally assisted with scanning
View is related.
It should be noted that default amplitude thresholds can change according to the individual information of target object, historical data；If
It, can be long according to time duration when thering is the fluctuation amplitude of the curve movement in time duration to be less than default amplitude thresholds
The whole default amplitude thresholds of minor then reduce default if time duration length is greater than the first time duration length threshold value
Default amplitude thresholds are then turned up if time duration length is less than the second time duration length threshold value in amplitude thresholds.
S240, reconstruction data in the raw scanning data of the target object are determined according to the time duration.
Wherein, the reconstruction data in the raw scanning data of the target object are determined according to the time duration,
Include: if the time duration be greater than or equal to preset time threshold if the time duration it is corresponding original
Reconstruction data of the scan data as the target object；Alternatively, if at least the sum of two sections of described time durations are greater than
Preset time threshold then will the corresponding raw scanning data of at least two sections of time durations as the target
The reconstruction data of object.
Specifically, can determine that the duration corresponding to two sections or more without motion states is long on a curve movement
Degree, all reconstruction data is determined according to the corresponding raw scanning data of all time durations, by all reconstruction data
It carries out splicing and continues subsequent operation.
It should be noted that after acquisition, scanning sequence of video images in interfaces windows after rebuilding data and determining
It no longer updates, can be provided in the raw scanning data that line is checked in acquisition time length.Illustratively, it is as shown in Figure 2 B this
The schematic diagram of the scanning interfaces windows of online editing, target object are realized in the illustrative graphical interaction that inventive embodiments provide
Curve movement also no longer update, establish interaction relation in curve movement and corresponding sequence of video images, pass through train line
Movement, the retrospective corresponding relationship for checking each frame video image and curve movement.Meanwhile it can be mentioned in scanning interfaces windows
The function of selective without motion state region, that is, visualize determine rebuild data at the beginning of and the end time, identify
Rebuild data interval.In addition, curve movement can realize more humane adjusting by amplifying or reducing.Terminate in reconstruction
Afterwards, the PET image rebuild and completed can be shown, while realizing and freely cutting between PET image and curve movement on entire interface
Change the function of display.
Technical solution provided in an embodiment of the present invention, in scanning process, by being mounted on camera on medical imaging device
The sequence of video images of acquisition target object in real time, and shown in scanning interfaces windows, the movement for constructing target object is bent
Line determines the motion state of target object, shows that the time corresponding to the data of without motion is long by patterned interactive mode
Degree is determined based on initial data in time span and rebuilds data, even if it is not right also to may be implemented when children are scanned
Child Anethsia, the scan data obtained in dwell length are rebuild, and obtained reconstructed results are due to effectively avoiding
Motion artifacts, reconstructed results are more accurate, while reducing scanning bring side effect.In addition, in 2m PET-CT equipment
In use, chest breath-hold scans can obtain the reconstruction data of without motion artifact, applicable scene is more, and the scope of application is wider.
Embodiment three
Fig. 3 is a kind of flow chart of the determination method for reconstruction data that the embodiment of the present invention three provides, the embodiment of the present invention
It is optimized based on above-described embodiment, in the present embodiment, step is determined into the view based on the sequence of video images
The motion state of the target object in frequency image sequence advanced optimizes are as follows: according to sequence of video images determination
The object detection area of target object；Based at least two images and at least two images in the sequence of video images
Described in object detection area each pixel pixel value, construct the fortune of the target object in the object detection area
Moving curve determines the motion state of the target object according to the curve movement.
Correspondingly, the method for the present embodiment specifically includes:
S310, the sequence of video images for obtaining target object.
S320, the object detection area that the target object is determined according to the sequence of video images.
Wherein, the object detection area is one or multiple, and the shape of the object detection area is rectangle, circle
Or it is one of trapezoidal.Object detection area and sequence of video images simultaneous display are in scanning interfaces windows, video image
Each width video image all displaying target detection zones that sequence includes, the position where object detection area represents target object
Want the region of progress motion detection.It object detection area can be in scanning interfaces windows according to the need of those skilled in the art
Realize the movement of position and the adjustment of size, the size of object detection area can choose and the image in sequence of video images
The size of size is consistent, for example, can by mouse, be elected in this region when be object detection area, press mouse
Left button does not discharge movement, that is, realizes the movement of position, when quadrangle of the mouse in object detection area, can press mouse
Left button does not discharge movement, that is, realizes the amplification and diminution of object detection area, is dragging in sequence of video images image most
When big boundary, then select the image in entire sequence of video images as object detection area.Since camera is mounted in one
Side, the target object sequence of video images of acquisition is direction from the beginning according to past, then target object sequence of video images is straight
Viewing is certain to have near big and far smaller effect, so object detection area can be made the detection block with transparent effect,
As transparent effect is added in object detection area.
Specifically, in the side PET of 2m PET-CT equipment and the side CT respectively according to two cameras, two camera acquisitions
Image can perform image display being complementary to one another for content, for example, can be clearly seen that target object head in the side PET
Motion conditions, the side CT can be clearly seen that target object lower limb whether motion conditions.Camera is by collected target pair
As and target object sequence of video images being shown in equipment operation in sequence of video images real-time transmission to scanning interfaces windows
The doctor at end sees.Meanwhile the object detection area of target object in sequence of video images is shown in scanning interfaces windows.Example
Property, it is the schematic diagram of scanning interfaces windows provided in an embodiment of the present invention as shown in Figure 3A, target object 12 is at scanning interface
The lower determining object detection area 11 of window 10 can be clearly seen in figure, and object detection area 11 is rectangle, with can be complete
All standing scanned position is the setting benchmark of object detection area size.
S330, at least two images and at least target described in two images are based in the sequence of video images
The pixel value of each pixel of detection zone constructs the curve movement of the target object in the object detection area, root
The motion state of the target object is determined according to the curve movement.
Specifically, obtaining the pixel on the sequence of video images in every piece image in the object detection area
Value；Difference, which is obtained, according to the pixel value in the object detection area of adjacent two images constructs the object detection area
The curve movement of the interior target object；The motion state of the target object is determined according to the curve movement.
It should be noted that the PET reconstruction regions on object detection area and locating plate can be linkage, it is convenient for doctor couple
The reconstruction regions range of user is set, but PET reconstruction regions do not appear in scanning interfaces windows, and is shown in positioning
The corresponding window of piece, but the corresponding window of locating plate and scanning interfaces windows are simultaneously displayed in a display interface,
It realizes while observing.For example, object detection area is set in head, then PET reconstruction regions work as Moving target detection also on head
To chest, then PET reconstruction regions also can automatically be moved to chest, guarantee that it is consistent for detecting motion range with reconstruction scope in region
, equally, the change in location of PET reconstruction regions, object detection area also and then changes.
It is further to note that multiple object detection areas can be set, while the different scanning portion of detected target object
The motion state of position, for example, the corresponding object detection area of each of head, chest and four limbs etc. setting, then in single pass
It is middle to generate multiple reconstruction data to meet clinical needs, the sweep time of target object is reduced, is economized on resources.
S340, reconstruction data in the raw scanning data of the target object are determined according to the motion state.
Object detection area is arranged by the sequence of video images to target object in the technical solution of the embodiment of the present invention, with
It realizes and it is pseudo- that movement is reduced to obtain the motion conditions of user with regard to the detection of those motion states to the appointed part of target object
The problem of target object raw scanning data inaccuracy caused by shadow, obtains accurate scanning input data.
Example IV
Fig. 4 is a kind of structure chart of the determining device for reconstruction data that the embodiment of the present invention four provides, and the present embodiment can fit
It is corresponding that period for the motion state detection confirmation target object without motion state to target object obtains the period
The case where scan data is rebuild.
As shown in figure 4, the determining device includes: that sequence of video images obtains module 410, moving state determining module
420 and rebuild data determining module 430, in which:
Sequence of video images obtains module 410, for obtaining the sequence of video images of target object；
Moving state determining module 420, for being determined in the sequence of video images based on the sequence of video images
The motion state of the target object；
Data determining module 430 is rebuild, for determining the original scan number of the target object according to the motion state
Reconstruction data in.
The determining device of the reconstruction data of the present embodiment, by the sequence of video images for obtaining target object；Based on described
Sequence of video images determines the motion state of the target object in the sequence of video images；It is true according to the motion state
Reconstruction data in the raw scanning data of the fixed target object are solved since the motion artifacts that user movement generates cause
Scan data inaccuracy problem, with realize avoid anesthesia and long-time dynamic scan, reduce scanning bring side effect, together
When obtain accurate scan data.
On the basis of the various embodiments described above, moving state determining module 420 is specifically used for:
Based on at least pixel value of each pixel of two images in the sequence of video images, the video image is constructed
The curve movement of the target object in sequence, the motion state of the target object is determined according to the curve movement.
On the basis of the various embodiments described above, moving state determining module 420 is specifically used for:
The object detection area of the target object is determined according to the sequence of video images；
Based at least two images and at least target detection described in two images in the sequence of video images
The pixel value of each pixel in region constructs the curve movement of the target object in the object detection area, according to institute
State the motion state that curve movement determines the target object.
On the basis of the various embodiments described above, data determining module 430 is rebuild, comprising:
Time duration acquiring unit, for obtaining the fortune for the target object determined according to the curve movement
Dynamic state time duration corresponding when being without motion state；
Data determination unit is rebuild, for determining the original scan number of the target object according to the time duration
Reconstruction data in.
On the basis of the various embodiments described above, described device further include:
Motion state when fluctuation amplitude in the curve movement is respectively less than default amplitude thresholds is determined as the target
Object is in without motion state；Alternatively,
Fluctuation amplitude in curve movement in preset durations length is determined as institute for the corresponding motion state of minimum value
It states target object and is in without motion state.
On the basis of the various embodiments described above, data determination unit is rebuild, comprising:
The time duration is corresponding if the time duration is greater than or equal to preset time threshold
Reconstruction data of the raw scanning data as the target object；Alternatively,
It will at least two sections of institutes if at least the sum of two sections of described time durations are greater than preset time threshold
State reconstruction data of the corresponding raw scanning data of time duration as the target object.
On the basis of the various embodiments described above, the sequence of video images is one group or multiple groups, the target detection area
Domain is one or multiple.
The determining device of reconstruction data provided by the various embodiments described above can be performed provided by any embodiment of the invention
The determination method for rebuilding data has the corresponding functional module of determination method and beneficial effect for executing and rebuilding data.
Embodiment five
As shown in figure 5, being a kind of hardware structural diagram of medical imaging equipment provided in an embodiment of the present invention, such as Fig. 5
Shown, which includes:
One or more processors 510, in Fig. 5 by taking a processor 510 as an example；
Memory 520；
The equipment can also include: input unit 530 and output device 540.
Processor 510, memory 520, input unit 530 and output device 540 in the equipment can pass through bus
Or other modes connect, in Fig. 5 for being connected by bus.
Memory 520 be used as a kind of non-transient computer readable storage medium, can be used for storing software program, computer can
Program and module are executed, as one of embodiment of the present invention rebuilds the corresponding program instruction/module of determination method of data
(for example, attached object detection area determining module 410 shown in Fig. 4, moving state determining module 420 and reconstruction data determine mould
Block 430).
Software program, instruction and the module that processor 510 is stored in memory 520 by operation, thereby executing setting
Standby various function application and data processing, the i.e. a kind of determination method of reconstruction data of realization above method embodiment, should
The method of determination includes:
Obtain the sequence of video images of target object；
The motion state of the target object in the sequence of video images is determined based on the sequence of video images；
The reconstruction data in the raw scanning data of the target object are determined according to the motion state.
Certainly, it will be understood by those skilled in the art that processor 510 can also realize that any embodiment of that present invention is provided
Reconstruction data determination method technical solution.
Memory 520 may include storing program area and storage data area, wherein storing program area can store operation system
Application program required for system, at least one function；Storage data area, which can be stored, uses created data etc. according to equipment.
It can also include non-transitory memory in addition, memory 520 may include high-speed random access memory, for example, at least one
A disk memory, flush memory device or other non-transitory solid-state memories.In some embodiments, memory 520 can
Choosing includes the memory remotely located relative to processor 510, these remote memories can be set by network connection to terminal
It is standby.The example of above-mentioned network includes but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
Input unit 530 can be used for receiving the number or character information of input, and generate with the user setting of equipment with
And the related key signals input of function control.
Output device 540 may include that display screen etc. shows equipment.
Embodiment six
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey
Realize that the determination method that data are rebuild as provided by the embodiment of the present invention, the determination method include: when sequence is executed by processor
Obtain the sequence of video images of target object；
The motion state of the target object in the sequence of video images is determined based on the sequence of video images；
The reconstruction data in the raw scanning data of the target object are determined according to the motion state.
Certainly, a kind of computer readable storage medium provided by the embodiment of the present invention, the computer program stored thereon
The method operation being not limited to the described above, can also be performed the determination method provided by any embodiment of the invention for rebuilding data
In relevant operation.
The computer storage medium of the embodiment of the present invention, can be using any of one or more computer-readable media
Combination.Computer-readable medium can be computer-readable signal media or computer readable storage medium.It is computer-readable
Storage medium for example may be-but not limited to-the system of electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor, device or
Device, or any above combination.The more specific example (non exhaustive list) of computer readable storage medium includes: tool
There are electrical connection, the portable computer diskette, hard disk, random access memory (RAM), read-only memory of one or more conducting wires
(ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-
ROM), light storage device, magnetic memory device or above-mentioned any appropriate combination.In this document, computer-readable storage
Medium can be any tangible medium for including or store program, which can be commanded execution system, device or device
Using or it is in connection.
Computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal,
Wherein carry computer-readable program code.The data-signal of this propagation can take various forms, including but unlimited
In electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be that computer can
Any computer-readable medium other than storage medium is read, which can send, propagates or transmit and be used for
By the use of instruction execution system, device or device or program in connection.
The program code for including on computer-readable medium can transmit with any suitable medium, including --- but it is unlimited
In wireless, electric wire, optical cable, RF etc. or above-mentioned any appropriate combination.
The computer for executing operation of the present invention can be write with one or more programming languages or combinations thereof
Program code, described program design language include object oriented program language-such as Java, Smalltalk, C++,
Further include conventional procedural programming language-such as " C " language or similar programming language.Program code can be with
It fully executes, partly execute on the user computer on the user computer, being executed as an independent software package, portion
Divide and partially executes or executed on a remote computer or server completely on the remote computer on the user computer.?
Be related in the situation of remote computer, remote computer can pass through the network of any kind --- including local area network (LAN) or
Wide area network (WAN)-be connected to subscriber computer, or, it may be connected to outer computer (such as mentioned using Internet service
It is connected for quotient by internet).
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of determination method for rebuilding data characterized by comprising
Obtain the sequence of video images of target object；
The motion state of the target object in the sequence of video images is determined based on the sequence of video images；
The reconstruction data in the raw scanning data of the target object are determined according to the motion state.
2. the method according to claim 1, wherein determining the video image based on the sequence of video images
The motion state of the target object in sequence, comprising:
Based on at least pixel value of each pixel of two images in the sequence of video images, the sequence of video images is constructed
The curve movement of the interior target object, the motion state of the target object is determined according to the curve movement.
3. the method according to claim 1, wherein determining the video image based on the sequence of video images
The motion state of the target object in sequence, comprising:
The object detection area of the target object is determined according to the sequence of video images；
Based at least two images and at least object detection area described in two images in the sequence of video images
Each pixel pixel value, the curve movement of the target object in the object detection area is constructed, according to the fortune
Moving curve determines the motion state of the target object.
4. the method according to claim 1, wherein determining the original of the target object according to the motion state
Reconstruction data in beginning scan data, comprising:
The motion state for obtaining the target object determined according to the curve movement is corresponding when being without motion state
Time duration；
The reconstruction data in the raw scanning data of the target object are determined according to the time duration.
5. according to the method described in claim 4, it is characterized by further comprising:
Motion state when fluctuation amplitude in the curve movement is respectively less than default amplitude thresholds is determined as the target object
In without motion state；Alternatively,
It is that the corresponding motion state of minimum value is determined as the mesh by fluctuation amplitude in curve movement in preset durations length
Mark object is in without motion state.
6. according to the method described in claim 4, it is characterized in that, determining the target object according to the time duration
Raw scanning data in reconstruction data, comprising:
The time duration is corresponding original if the time duration is greater than or equal to preset time threshold
Reconstruction data of the scan data as the target object；Alternatively,
It is at least held described in two sections if at least the sum of two sections of described time durations are greater than preset time threshold by described
Continuous reconstruction data of the corresponding raw scanning data of time span as the target object.
7. method according to claim 1-6, which is characterized in that the sequence of video images is one group or more
Group, the object detection area are one or multiple.
8. a kind of determining device for rebuilding data characterized by comprising
Sequence of video images obtains module, for obtaining the sequence of video images of target object；
Moving state determining module, for determining the target in the sequence of video images based on the sequence of video images
The motion state of object；
Rebuild data determining module, the weight in raw scanning data for determining the target object according to the motion state
Build data.
9. a kind of medical imaging equipment, which is characterized in that the equipment includes:
One or more processors；
Storage device, for storing one or more programs；
When one or more of programs are executed by one or more of processors, so that one or more of processors are real
The now determination method of the reconstruction data as described in any in claim 1-7.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The determination method of the reconstruction data as described in any in claim 1-7 is realized when execution.
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