CN110473269A - A kind of image rebuilding method, system, equipment and storage medium - Google Patents
A kind of image rebuilding method, system, equipment and storage medium Download PDFInfo
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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
- G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
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- 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
- G06T2207/10072—Tomographic images
- G06T2207/10081—Computed x-ray tomography [CT]
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- 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
- G06T2207/10072—Tomographic images
- G06T2207/10104—Positron emission tomography [PET]
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Abstract
The embodiment of the invention discloses a kind of image rebuilding methods, system, equipment and storage medium, by the raw scanning data for obtaining target object, orthographic projection data are determined according to raw scanning data, calculate the correction of movement field between raw scanning data and orthographic projection data, raw scanning data is corrected according to correction of movement field, raw scanning data after correction is rebuild, since correction of movement field corrects raw scanning data, thus obtain the less Object reconstruction image of artifact, if the requirements are not met, using Object reconstruction image as initial pictures, again orthographic projection is carried out to initial pictures and calculates correction of movement field and raw scanning data is corrected, until obtaining ideal Object reconstruction image, solve poor to initial reconstructed image calibration result on image area in the prior art ask Topic, realizes and is corrected to raw scanning data in projection domain to reduce the effect of the motion artifacts of reconstruction image.
Description
Technical field
The present embodiments relate to medical device technology more particularly to a kind of image rebuilding method, system, equipment and storages
Medium.
Background technique
Under normal circumstances, using medical imaging device, (such as CT (sweep by Computed Tomography, electronic computer tomography
Retouch), PET (Positron Emission Computed Tomography, positron e mission computed tomography)) it is right
In a certain scanning area scanning process of detected person, there may be autonomous or involuntary movements (as being detected by detected person
The autonomous respiratory movement of person, involuntary heartbeat and gastrointestinal peristalsis etc.), these autonomous or involuntary movements will be in weight
It builds and forms motion artifacts on image, reducing picture quality even influences to diagnose.
For this purpose, the prior art eliminates the motion artifacts to be formed frequently with method of motion correction, initial reconstructed image is such as chosen
Different range data for projection, or choose that data area is identical but the data for projection of weighted, by these data for projection
It is rebuild to obtain the reconstruction image of multiple data for projection, sports ground, and root is calculated according to the reconstruction image of multiple data for projection
It is corrected according to reconstruction image of the sports ground to multiple data for projection.
As it can be seen that the above method is that motion correction is carried out on image area, in specific implementation, if initial reconstructed image
Motion artifacts are more apparent, then the sports ground being calculated according to the reconstruction image of multiple data for projection of selection is very inaccurate, lead
Cause the calibration result of reconstruction image poor.
Summary of the invention
The embodiment of the invention provides a kind of image rebuilding method, system, equipment and storage mediums, to realize in projection domain
Artifact correction is carried out, the motion artifacts of reconstruction image are greatly reduced.
In a first aspect, the embodiment of the invention provides a kind of image rebuilding methods, comprising:
The raw scanning data for obtaining target object, according to raw scanning data determination and the raw scanning data
Corresponding orthographic projection data；
The correction of movement field between the raw scanning data and the orthographic projection data is calculated, according to the correction of movement
Field is corrected the raw scanning data；
Raw scanning data after correction is rebuild, Object reconstruction image is obtained.
Second aspect, the embodiment of the invention also provides a kind of image re-construction system, which includes:
Module is obtained, for obtaining the raw scanning data of target object, according to the raw scanning data determination and institute
State the corresponding orthographic projection data of raw scanning data；
Computing module, for calculating the correction of movement field between the raw scanning data and the orthographic projection data, root
The raw scanning data is corrected according to the correction of movement field；
It rebuilds module and obtains Object reconstruction image for rebuilding to the raw scanning data after correction.
The third aspect, the embodiment of the invention also provides a kind of image reconstruction devices, including memory, processor and storage
On a memory and the computer program that can run on a processor, wherein when the processor executes the computer program
Realize such as the described in any item image rebuilding methods of first aspect.
Fourth aspect, the embodiment of the invention also provides a kind of storage mediums comprising computer executable instructions, wherein
The computer executable instructions realize such as the described in any item image reconstructions of first aspect when being executed by computer processor
Method.
The technical solution of the embodiment of the present invention, by obtaining the raw scanning data of target object, according to original scan number
According to determining orthographic projection data corresponding with raw scanning data, and calculate the correction between raw scanning data and orthographic projection data
Sports ground is corrected raw scanning data according to correction of movement field, then carries out weight to the raw scanning data after correction
It builds, obtains Object reconstruction image, original sweeping since correction of movement field corrects raw scanning data, thus after correcting
It is more accurate to retouch data, and obtains the less Object reconstruction image of artifact, solves in the prior art on image area to initial
The poor problem of reconstruction image calibration result is realized and is corrected to raw scanning data in projection domain to reduce reconstruction figure
The effect of the motion artifacts of picture.
Detailed description of the invention
Fig. 1 is a kind of flow diagram for image rebuilding method that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of image rebuilding method provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of flow diagram for image rebuilding method that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural schematic diagram for image rebuilding method that the embodiment of the present invention three provides；
Fig. 5 is a kind of structural schematic diagram for image re-construction system that the embodiment of the present invention four provides；
Fig. 6 is a kind of structural schematic diagram for image reconstruction device that the embodiment of the present invention five provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of flow diagram for image rebuilding method that the embodiment of the present invention one provides, and the present embodiment is applicable
In the case where original scan image of the projection domain to acquisition carries out artifact correction, this method can be held by image re-construction system
Row, wherein the system can be implemented by software and/or hardware, and be typically integrated in terminal.Referring specifically to shown in Fig. 1, this method
It may include steps of:
S110 obtains the raw scanning data of target object, according to raw scanning data determination and raw scanning data pair
The orthographic projection data answered.
Wherein, target object can be understood as scanned object, and illustratively, scanned object can be with human body, animal body
Or some emulation experiment bodies etc..Target object may also mean that the part region to be scanned for being scanned individual.For example, it may be
The head zone of scanned human body or chest area etc..
Wherein, raw scanning data can for CT scan data, PET scan data and MRI scan data etc.,
Raw scanning data can be the stronger scan data section of motion artifacts, be also possible to the weaker scan data section of motion artifacts,
The present embodiment is not specifically limited.
It is alternatively possible to orthographic projection is carried out to initial pictures by determining initial pictures corresponding with raw scanning data,
Obtain orthographic projection data corresponding with raw scanning data.
Specifically, raw scanning data is rebuild, obtains initial pictures corresponding with raw scanning data；Alternatively,
The history scan data of target object is rebuild, initial pictures corresponding with raw scanning data are obtained.That is, initial pictures
It can be the current image of target object, be also possible to the image of target object priori.
Illustratively, if initial pictures are the current images of target object, weight is carried out to current raw scanning data
It builds, just obtains the initial pictures.Similarly, if initial pictures are the images of target object priori, the history of priori is scanned
Data are rebuild, and the initial pictures are just obtained.It is understood that raw scanning data can once be rebuild or
Rebuild several times and obtain the current image of target object, similarly, can also history scan data to priori by once weighing
It builds or rebuilds to obtain the image of target object priori several times.
S120 calculates the correction of movement field between raw scanning data and orthographic projection data, according to correction of movement field to original
Beginning scan data is corrected.
Wherein, raw scanning data may include data value, acquisition position and angle etc..Correspondingly, and original scan
The corresponding orthographic projection data of data also may include data value, acquisition position and angle etc..Thus, raw scanning data with just
Correction of movement field between data for projection may include the direction of relative movement between orthographic projection data of raw scanning data
And relative distance etc..
It is understood that may include more fictitious data in raw scanning data, and relative to original scan number
According to orthographic projection data corresponding with raw scanning data are often possible to include less fictitious data, therefore, can be according to original
Correction of movement field between scan data and orthographic projection data, the correction to raw scanning data.
S130 rebuilds the raw scanning data after correction, obtains Object reconstruction image.
From the foregoing, it will be observed that the raw scanning data after can just being corrected by raw scanning data and orthographic projection data,
In, the raw scanning data after correction is the less data for projection of motion artifacts, correspondingly, obtained Object reconstruction image is also
The less reconstruction image of motion artifacts.
Optionally, the raw scanning data after correction is rebuild using filtered back-projection method, obtains Object reconstruction
Image；The raw scanning data after correction can also be rebuild using iterative reconstruction approach, obtain Object reconstruction image.
The embodiment of the invention provides a kind of image rebuilding methods, by obtaining the raw scanning data of target object, root
Orthographic projection data corresponding with raw scanning data are determined according to raw scanning data, and calculate raw scanning data and orthographic projection number
Correction of movement field between, is corrected raw scanning data according to correction of movement field, then sweeps to original after correction
It retouches data to be rebuild, obtains Object reconstruction image, since correction of movement field corrects raw scanning data, thus school
Raw scanning data after just is more accurate, and obtains the less Object reconstruction image of artifact, solves and is scheming in the prior art
The problem poor to initial reconstructed image calibration result, realizes and is corrected in projection domain to raw scanning data on image field
To reduce the effect of the motion artifacts of reconstruction image.
Embodiment two
Fig. 2 is a kind of flow diagram of image rebuilding method provided by Embodiment 2 of the present invention.The technology of the present embodiment
Scheme is refined on the basis of the above embodiments, optionally, it is described according to the raw scanning data it is determining with it is described
The corresponding orthographic projection data of raw scanning data, comprising: initial pictures corresponding with the raw scanning data are determined, to described
Initial pictures carry out orthographic projection, obtain orthographic projection data corresponding with the raw scanning data.
It is optionally, described to calculate the raw scanning data and the orthographic projection on the basis of above-mentioned each technical solution
Correction of movement field between data may also include that and be registrated to the raw scanning data with the orthographic projection data, obtains
Correction of movement field between the raw scanning data and the orthographic projection data.
Referring specifically to shown in Fig. 2, the method for the present embodiment be may include steps of:
S210 obtains the raw scanning data of target object, according to raw scanning data determination and raw scanning data pair
The orthographic projection data answered.
Optionally, after the raw scanning data for obtaining target object, raw scanning data is rebuild to obtain initial
Then image carries out orthographic projection to initial pictures, obtains orthographic projection data corresponding with raw scanning data.
Optionally, orthographic projection data can obtain in the following manner: traverse each voxel of initial pictures；For each
At least one angle of voxel does orthographic projection, obtains orthographic projection data corresponding with raw scanning data.
Optionally, if it is CT image that initial pictures are corresponding, which can be discretized into the grid of rule, often
A grid cell can be used as a voxel.
Illustratively, if the angle of orthographic projection is ω, voxel number is N*N*N, if done under each angle
The available M*M data of orthographic projection, then be the available [M*M-M*M* of orthographic projection at least one angle of each voxel
ω] a data for projection, doing orthographic projection just at least one angle of N*N*N voxel as a result, can be obtained a large amount of orthographic projection number
According to it is hereby achieved that orthographic projection data corresponding with raw scanning data.
S220 is registrated raw scanning data with orthographic projection data, obtains raw scanning data and orthographic projection data
Between correction of movement field, raw scanning data is corrected according to correction of movement field.
Wherein, the method for registering being registrated to raw scanning data with orthographic projection data can be Rigid Registration method
It can be non-rigid registration method.
Wherein, the raw scanning data for calculating correction of movement field can be current scan data, be also possible to current
Scan data carry out interpolation processing or rearrangement processing after scan data.
Wherein, correction of movement field can be continuum and be also possible to discontinuity zone.
Optionally, based on all voxels of raw scanning data are matched raw scanning data and orthographic projection data
Standard obtains the correction of movement field between raw scanning data and orthographic projection data；Alternatively, the part based on raw scanning data
Raw scanning data is registrated by voxel with orthographic projection data, is obtained initial between raw scanning data and orthographic projection data
Sports ground carries out interpolation to initial motion field, obtains the correction of movement field between raw scanning data and orthographic projection data.
It is understood that can be modified according to the correction of movement field of calculating to raw scanning data, so that modification
Raw scanning data afterwards is more accurate, is corrected further according to correction of movement field to modified raw scanning data, alternatively,
A correction term can be added to raw scanning data, so that modified raw scanning data is more accurate, further according to correction
Sports ground is corrected the raw scanning data plus correction term.
S230 rebuilds the raw scanning data after correction, obtains Object reconstruction image.
The embodiment of the invention provides a kind of image rebuilding methods, by obtaining the raw scanning data of target object, really
Fixed initial pictures corresponding with raw scanning data carry out orthographic projection to initial pictures, obtain corresponding with raw scanning data
Orthographic projection data, and raw scanning data is registrated with orthographic projection data, obtain raw scanning data and orthographic projection data
Between correction of movement field, raw scanning data is corrected according to correction of movement field, is solved in the prior art in image
The problem poor to initial reconstructed image calibration result on domain is realized by matching to raw scanning data and orthographic projection data
Standard is rebuild according to the raw scanning data after correction less to obtain artifact with being corrected to raw scanning data
The effect of Object reconstruction image.
Embodiment three
Fig. 3 is a kind of flow diagram for image rebuilding method that the embodiment of the present invention three provides.The technology of the present embodiment
Scheme is refined on the basis of the above embodiments, optionally, it is described according to the raw scanning data it is determining with it is described
The corresponding orthographic projection data of raw scanning data, comprising: initial pictures corresponding with the raw scanning data are determined, to described
Initial pictures carry out orthographic projection, obtain orthographic projection data corresponding with the raw scanning data.
Based on the above technical solution, optionally, the raw scanning data after described pair of correction is rebuild, and is obtained
Object reconstruction image, comprising: the raw scanning data after correction is rebuild, current reconstruction image is obtained；Work as described in judgement
Whether preceding reconstruction image meets the default condition of convergence；If not, being repeated using the current reconstruction image as initial pictures
The step of are carried out by orthographic projection, obtains orthographic projection data corresponding with the raw scanning data for the initial pictures, until institute
It states current reconstruction image and meets the default condition of convergence；If it is, using the current reconstruction image as Object reconstruction image.
It is understood that if the movement of obtained target object is stronger, the target weight that obtains through the foregoing embodiment
Building image may not be able to meet the requirements, and can also re-execute above-mentioned implementation using Object reconstruction image as current reconstruction image
The step of example.Referring specifically to shown in Fig. 3, the method for the present embodiment be may include steps of:
S310 obtains the raw scanning data of target object.
S320 determines initial pictures corresponding with raw scanning data.
S330 carries out orthographic projection to initial pictures, obtains orthographic projection data corresponding with raw scanning data.
S340 calculates the correction of movement field between raw scanning data and orthographic projection data, according to correction of movement field to original
Beginning scan data is corrected.
S350 rebuilds the raw scanning data after correction, obtains current reconstruction image.
S360, judges whether current reconstruction image meets the default condition of convergence, if so, S370 is executed, if not, executing
S380。
Wherein, the default condition of convergence can be preset convergence threshold, be less than in advance if current reconstruction image updates amplitude
If convergence threshold, then illustrate that current reconstruction image meets the default condition of convergence；If the update amplitude of current reconstruction image with
Greater than preset convergence threshold, then illustrate that current reconstruction image is unsatisfactory for the default condition of convergence.
S370, using current reconstruction image as Object reconstruction image.
S380, using current reconstruction image as initial pictures, return continues to execute S330.
Optionally, if current reconstruction image, which updates amplitude, is greater than convergence threshold, using current reconstruction image as initial graph
Picture, and return and continue to execute S330 to be iterated, recalculate the correction fortune between raw scanning data and orthographic projection data
Dynamic field, and the step of being corrected to raw scanning data and carrying out image reconstruction, preset until current reconstruction image meets
The condition of convergence.
Illustratively explain the above method, as shown in figure 4, after getting raw scanning data, it can be to original scan
Data are rebuild, and initial pictures are obtained, then using orthographic projection method provided by the above embodiment to obtained initial pictures
Orthographic projection is carried out, orthographic projection data are obtained, it then, can be using method for registering provided by the above embodiment to raw scanning data
It is registrated with orthographic projection data, obtains correction of movement field, and be corrected to raw scanning data according to correction of movement field, and
Scan data after obtaining motion correction, then rebuilds the scan data after motion correction to obtain Object reconstruction image.
It is understood that if above-mentioned Object reconstruction image is unsatisfactory for the default condition of convergence, the Object reconstruction that reconstruction can be obtained
Image repeats as initial pictures and carries out orthographic projection to initial pictures, obtain orthographic projection corresponding with raw scanning data
The step of data, until current reconstruction image meets the default condition of convergence.
The embodiment of the invention discloses a kind of image rebuilding methods, by obtaining the raw scanning data of target object, root
Orthographic projection data corresponding with raw scanning data are determined according to raw scanning data, calculate raw scanning data and orthographic projection data
Between correction of movement field, raw scanning data is corrected according to correction of movement field, to the raw scanning data after correction
It is rebuild, obtains Object reconstruction image, if the requirements are not met, using current Object reconstruction image as initial pictures, weight
It is multiple to execute the step of orthographic projection is carried out to initial pictures, obtains orthographic projection data corresponding with raw scanning data, until current
Reconstruction image meets the default condition of convergence, and by above step, available ideal Object reconstruction image is solved existing
There is problem poor to initial reconstructed image calibration result on image area in technology, realizes in projection domain to original scan
Data are corrected to reduce the effect of the motion artifacts of reconstruction image.
Example IV
Fig. 5 is a kind of structural schematic diagram for image re-construction system that the embodiment of the present invention four provides.It is shown in Figure 5, it should
System includes: to obtain module 51, computing module 52 and reconstruction module 53.
Wherein, obtain module 51, for obtaining the raw scanning data of target object, according to raw scanning data determine with
The corresponding orthographic projection data of raw scanning data；Computing module 52, for calculating between raw scanning data and orthographic projection data
Correction of movement field, raw scanning data is corrected according to correction of movement field；Module 53 is rebuild, for the original after correction
Beginning scan data is rebuild, and Object reconstruction image is obtained.
On the basis of above-mentioned each technical solution, module 51 is obtained, is also used to determine corresponding with raw scanning data first
Beginning image carries out orthographic projection to initial pictures, obtains orthographic projection data corresponding with raw scanning data.
On the basis of above-mentioned each technical solution, module 51 is obtained, is also used to:
Raw scanning data is rebuild, initial pictures corresponding with raw scanning data are obtained；Alternatively,
The history scan data of target object is rebuild, initial pictures corresponding with raw scanning data are obtained.
On the basis of above-mentioned each technical solution, module 51 is obtained, is also used to:
Traverse each voxel of initial pictures；
Orthographic projection is done at least one angle of each voxel, obtains orthographic projection number corresponding with raw scanning data
According to.
On the basis of above-mentioned each technical solution, computing module 52 is also used to:
Raw scanning data is registrated with orthographic projection data, is obtained between raw scanning data and orthographic projection data
Correction of movement field.
On the basis of above-mentioned each technical solution, computing module 52 is also used to:
Based on raw scanning data to be registrated all voxels of raw scanning data to orthographic projection data, original is obtained
Correction of movement field between beginning scan data and orthographic projection data；
Alternatively,
Raw scanning data is registrated by the part voxel based on raw scanning data with orthographic projection data, is obtained original
Initial motion field between scan data and orthographic projection data,
Interpolation is carried out to initial motion field, obtains the correction of movement field between raw scanning data and orthographic projection data.
On the basis of above-mentioned each technical solution, rebuilds module 53 and is also used to:
Raw scanning data after correction is rebuild, current reconstruction image is obtained；
Judge whether current reconstruction image meets the default condition of convergence；If not, using current reconstruction image as initial graph
The step of picture repeats and carries out orthographic projection to initial pictures, obtains orthographic projection data corresponding with raw scanning data, until
Current reconstruction image meets the default condition of convergence；
If it is, using current reconstruction image as Object reconstruction image.
The embodiment of the invention provides a kind of image re-construction systems, by obtaining the raw scanning data of target object, root
Orthographic projection data corresponding with raw scanning data are determined according to raw scanning data, and calculate raw scanning data and orthographic projection number
Correction of movement field between, is corrected raw scanning data according to correction of movement field, then sweeps to original after correction
It retouches data to be rebuild, obtains Object reconstruction image, since correction of movement field corrects raw scanning data, thus school
Raw scanning data after just is more accurate, and obtains the less Object reconstruction image of artifact, solves and is scheming in the prior art
The problem poor to initial reconstructed image calibration result, realizes and is corrected in projection domain to raw scanning data on image field
To reduce the effect of the motion artifacts of reconstruction image.
Embodiment five
Fig. 6 is a kind of structural schematic diagram for image reconstruction device that the embodiment of the present invention five provides.Fig. 6, which is shown, to be suitable for using
Come realize embodiment of the present invention example images reconstructing apparatus 12 block diagram.The image reconstruction device 12 that Fig. 6 is shown is only
An example, should not function to the embodiment of the present invention and use scope bring any restrictions.
As shown in fig. 6, image reconstruction device 12 is showed in the form of universal computing device.The component of image reconstruction device 12
Can include but is not limited to: one or more processor or processing unit 16, system storage 28 connect not homologous ray group
The bus 18 of part (including system storage 28 and processing unit 16).
Bus 18 indicates one of a few class bus structures or a variety of, including memory bus or Memory Controller,
Peripheral bus, graphics acceleration port, processor or the local bus using any bus structures in a variety of bus structures.It lifts
For example, these architectures include but is not limited to industry standard architecture (ISA) bus, microchannel architecture (MAC)
Bus, enhanced isa bus, Video Electronics Standards Association (VESA) local bus and peripheral component interconnection (PCI) bus.
Image reconstruction device 12 typically comprises a variety of computer system readable media.These media can be it is any can
The usable medium accessed by image reconstruction device 12, including volatile and non-volatile media, it is moveable and immovable
Medium.
System storage 28 may include the computer system readable media of form of volatile memory, such as arbitrary access
Memory (RAM) 30 and/or cache memory 32.Image reconstruction device 12 may further include it is other it is removable/no
Movably, volatile/non-volatile computer system storage medium.Only as an example, storage system 34 can be used for reading and writing
Immovable, non-volatile magnetic media (Fig. 6 do not show, commonly referred to as " hard disk drive ").It, can although being not shown in Fig. 6
To provide the disc driver for reading and writing to removable non-volatile magnetic disk (such as " floppy disk "), and it is non-volatile to moving
Property CD (such as CD-ROM, DVD-ROM or other optical mediums) read and write CD drive.In these cases, each drive
Dynamic device can be connected by one or more data media interfaces with bus 18.Memory 28 may include at least one program
Product, the program product have one group of (such as image collection module 61 and memory module 62 of image re-construction system) program mould
Block, these program modules are configured to perform the function of various embodiments of the present invention.
With one group of (such as acquisition module 51, computing module 52 and reconstruction module 53 of image re-construction system) program module
46 program/utility 44, can store in such as memory 28, and such program module 46 includes but is not limited to operate
System, one or more application program, other program modules and program data, each of these examples or certain group
It may include the realization of network environment in conjunction.Program module 46 usually execute function in embodiment described in the invention and/
Or method.
Image reconstruction device 12 can also be with one or more external equipments 14 (such as keyboard, sensing equipment, display 24
Deng) communication, the equipment interacted with the image reconstruction device 12 can be also enabled a user to one or more to be communicated, and/or with
Any equipment (such as network interface card, the modulation that image reconstruction device 12 is communicated with one or more of the other calculating equipment
Demodulator etc.) communication.This communication can be carried out by input/output (I/O) interface 22.Also, image reconstruction device 12
Network adapter 20 and one or more network (such as local area network (LAN), wide area network (WAN) and/or public can also be passed through
Network, such as internet) communication.As shown, network adapter 20 passes through other moulds of bus 18 and image reconstruction device 12
Block communication.It should be understood that although not shown in the drawings, other hardware and/or software mould can be used in conjunction with image reconstruction device 12
Block, including but not limited to: microcode, device driver, redundant processing unit, external disk drive array, RAID system, tape
Driver and data backup storage system etc..
Processing unit 16 by the program that is stored in system storage 28 of operation, thereby executing various function application and
Data processing, such as realize a kind of image rebuilding method provided by the embodiment of the present invention, this method comprises:
The raw scanning data for obtaining target object, it is corresponding with raw scanning data just according to raw scanning data determination
Data for projection；
The correction of movement field between raw scanning data and orthographic projection data is calculated, according to correction of movement field to original scan
Data are corrected；
Raw scanning data after correction is rebuild, Object reconstruction image is obtained.
Processing unit 16 by the program that is stored in system storage 28 of operation, thereby executing various function application and
Data processing, such as realize a kind of image rebuilding method provided by the embodiment of the present invention.
Certainly, it will be understood by those skilled in the art that processor can also realize it is provided by any embodiment of the invention
A kind of technical solution of image rebuilding method.
Embodiment six
The embodiment of the present invention six additionally provides a kind of computer readable storage medium, is stored thereon with computer program, should
A kind of image rebuilding method as provided by the embodiment of the present invention is realized when program is executed by processor, this method comprises:
The raw scanning data for obtaining target object, it is corresponding with raw scanning data just according to raw scanning data determination
Data for projection；
The correction of movement field between raw scanning data and orthographic projection data is calculated, according to correction of movement field to original scan
Data are corrected；
Raw scanning data after correction is rebuild, Object reconstruction image is obtained.
Certainly, a kind of computer readable storage medium provided by the embodiment of the present invention, the computer program stored thereon
It is not limited to method operation as above, the phase in a kind of image rebuilding method provided by any embodiment of the invention can also be performed
Close 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, system 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, system or device
Using or it is in connection.
Computer-readable signal media may include in raw scanning data, orthographic projection data, correction of movement field etc.,
In carry computer-readable program code.The shapes such as raw scanning data, orthographic projection data, the correction of movement field of this propagation
Formula.Computer-readable signal media can also be any computer-readable medium other than computer readable storage medium, should
Computer-readable medium can send, propagate or transmit for by instruction execution system, system or device using or with
Its program being used in combination.
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, programming language include object oriented program language-such as Java, Smalltalk, C++, are also wrapped
Include conventional procedural programming language-such as " C " language or similar programming language.Program code can be complete
Ground executes on the user computer, partly executes on the user computer, executing as an independent software package, partially existing
Part executes on the remote computer or executes on a remote computer or server completely on subscriber computer.It is being related to
In the situation of remote computer, remote computer can pass through the network of any kind --- including local area network (LAN) or wide area
Net (WAN)-be connected to subscriber computer, or, it may be connected to outer computer (such as utilize ISP
To be connected by internet).
It is worth noting that, included modules are only according to function in the embodiment of above-mentioned image re-construction system
What logic was divided, but be not limited to the above division, as long as corresponding functions can be realized；In addition, each function
The specific name of unit is also only for convenience of distinguishing each other, the protection scope being not intended to restrict the invention.
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 image rebuilding method characterized by comprising
The raw scanning data for obtaining target object, it is corresponding with the raw scanning data according to raw scanning data determination
Orthographic projection data；
The correction of movement field between the raw scanning data and the orthographic projection data is calculated, it is right according to the correction of movement field
The raw scanning data is corrected；
Raw scanning data after correction is rebuild, Object reconstruction image is obtained.
2. the method according to claim 1, wherein original being swept according to the raw scanning data is determining with described
Retouch the corresponding orthographic projection data of data, comprising:
Determine corresponding with raw scanning data initial pictures, to initial pictures progress orthographic projection, obtain with it is described
The corresponding orthographic projection data of raw scanning data.
3. according to the method described in claim 2, it is characterized in that, determining initial graph corresponding with the raw scanning data
Picture, comprising:
The raw scanning data is rebuild, initial pictures corresponding with the raw scanning data are obtained；Alternatively,
The history scan data of the target object is rebuild, initial graph corresponding with the raw scanning data is obtained
Picture.
4. according to the method described in claim 2, it is characterized in that, to the initial pictures carry out orthographic projection, obtain with it is described
The corresponding orthographic projection data of raw scanning data, comprising:
Traverse each voxel of the initial pictures；
Orthographic projection is done at least one angle of each voxel, obtains orthographic projection corresponding with the raw scanning data
Data.
5. the method according to claim 1, wherein calculating the raw scanning data and the orthographic projection data
Between correction of movement field, comprising:
The raw scanning data is registrated with the orthographic projection data, obtains the raw scanning data and the positive throwing
Correction of movement field between shadow data.
6. according to the method described in claim 5, it is characterized in that, to the raw scanning data and the orthographic projection data into
Row registration, obtains the correction of movement field of the raw scanning data Yu the orthographic projection data, comprising:
Based on all voxels of the raw scanning data are matched the raw scanning data and the orthographic projection data
Standard obtains the correction of movement field between the raw scanning data and the orthographic projection data；
Alternatively,
The raw scanning data is registrated with the orthographic projection data based on the part voxel of the raw scanning data,
The initial motion field between the raw scanning data and the orthographic projection data is obtained, the initial motion field is carried out slotting
Value, obtains the correction of movement field between the raw scanning data and the orthographic projection data.
7. according to the method described in claim 2, obtaining target it is characterized in that, rebuild to the initial data after correction
Reconstruction image, comprising:
Raw scanning data after correction is rebuild, current reconstruction image is obtained；
Judge whether the current reconstruction image meets the default condition of convergence；If not, using the current reconstruction image as just
Beginning image repeats and carries out orthographic projection to the initial pictures, obtains orthographic projection number corresponding with the raw scanning data
According to the step of, until the current reconstruction image meets the default condition of convergence；
If it is, using the current reconstruction image as Object reconstruction image.
8. a kind of image re-construction system characterized by comprising
Module is obtained, for obtaining the raw scanning data of target object, according to raw scanning data determination and the original
The corresponding orthographic projection data of beginning scan data；
Computing module, for calculating the correction of movement field between the raw scanning data and the orthographic projection data, according to institute
Correction of movement field is stated to be corrected the raw scanning data；
It rebuilds module and obtains Object reconstruction image for rebuilding to the raw scanning data after correction.
9. a kind of image reconstruction device, can run on a memory and on a processor including memory, processor and storage
Computer program, which is characterized in that the processor is realized when executing the computer program such as any one of claim 1-7
The image rebuilding method.
10. a kind of storage medium comprising computer executable instructions, which is characterized in that the computer executable instructions by
Such as image rebuilding method of any of claims 1-7 is realized when computer processor executes.
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