CN110270017A - Method for ensuring quality, radiotherapy system and the storage medium of hospital bed - Google Patents
Method for ensuring quality, radiotherapy system and the storage medium of hospital bed Download PDFInfo
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- CN110270017A CN110270017A CN201910542818.9A CN201910542818A CN110270017A CN 110270017 A CN110270017 A CN 110270017A CN 201910542818 A CN201910542818 A CN 201910542818A CN 110270017 A CN110270017 A CN 110270017A
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- bed board
- image
- kinematic parameter
- bed
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/103—Treatment planning systems
- A61N5/1037—Treatment planning systems taking into account the movement of the target, e.g. 4D-image based planning
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
- A61N5/1069—Target adjustment, e.g. moving the patient support
Abstract
The embodiment of the invention discloses a kind of method for ensuring quality of hospital bed, radiotherapy system and storage mediums.This method comprises: determining the kinematic parameter of the bed board according to the weight of load and range to be scanned, the kinematic parameter includes the bed board along kinematic parameter and the bed board kinematic parameter in a second direction of first direction, and the second direction is perpendicular to the first direction；Obtain first image of the bed board under the kinematic parameter；First image is handled using default correction algorithm to obtain correction image；The standard video for being registrated the correction image and the bed board obtains the first registration result；Judge whether the default correction algorithm is effective based on first registration result.The technical solution of the embodiment of the present invention realizes the Quality Assurance process of simplified hospital bed, convenient for the practical operation of user.
Description
Technical field
The present embodiments relate to technical field of medical equipment more particularly to a kind of method for ensuring quality of hospital bed, radiation
Treatment system and storage medium.
Background technique
Linear accelerator is the primary treatment equipment in radiotherapy.In the prior art since some linear accelerators are treated
The phenomenon that stroke of bed is longer, and bed board is caused to sink.Especially for CT (computed tomography) machine and linear accelerating
The stroke of the integrated equipment of device, the bed board of the relatively general linear accelerator of the stroke of bed board is longer, therefore when bed board is moved to
When the end CT carries out CT scan, it is affected by gravity therapeutic bed and has a degree of deformation.A set of correction is had for this problem
Mechanism, the influence for the deformation of corrective therapy bed to imaging.User will carry out regularly Quality Control, verifying to this correction mechanism
Whether correction mechanism is effective, could be when patient carries out radiotherapy, it is ensured that linear accelerator therapeutic bed is working properly.
The Quality Control of linear accelerator therapeutic bed generally involves following steps in the prior art: die body and counterweight (are used for
Simulate human body weight, for example, about 70kg) it is placed into therapeutic bed；Die body center is directed at laser lamp；CT-Sim is carried out to die body
(CT-simulation, simulator locating) scanning obtains simulator locating image, guarantees that die body is not moved in scanning process；It utilizes
The equal centers of launched field are placed in the center of die body by one simple radiotherapy planning of obtained simulator locating making video；It is intended to
Scheduling obtains IGRT (image guide radiation therapy, image-guided radiotherapy) image of die body；By mould
It drafts an image and IGRT image is registrated, ideally, after correcting the correction of mechanism, linear accelerator therapeutic bed
Tri- directions x, y and z on the offset of image should be zero.Die body is put involved in existing Quality Control workflow, is carried
Operation, the processes such as counterweight, production plan are very complicated.
Summary of the invention
The embodiment of the invention provides a kind of method for ensuring quality of hospital bed, radiotherapy system and storage mediums, with reality
Now simplify the Quality Control process of hospital bed.
In a first aspect, the embodiment of the invention provides a kind of method for ensuring quality of hospital bed, the hospital bed include pedestal and
It is coupled in the bed board of the pedestal, this method comprises:
Determine that the kinematic parameter of the bed board, the kinematic parameter include described according to the weight of load and range to be scanned
Bed board is along kinematic parameter and the bed board kinematic parameter in a second direction of first direction, and the second direction is perpendicular to described
First direction；
Obtain first image of the bed board under the kinematic parameter；
First image is handled using default correction algorithm to obtain correction image；
The standard video for being registrated the correction image and the bed board obtains the first registration result；
Judge whether the default correction algorithm is effective based on first registration result.
Second aspect, the embodiment of the invention also provides a kind of radiotherapy system, which includes: that radiotherapy is set
The quality assurance device of standby, hospital bed and hospital bed, the hospital bed include pedestal and the bed board for being coupled in the pedestal, wherein institute
The quality assurance device for stating hospital bed is configured to:
Determine that the kinematic parameter of the bed board, the kinematic parameter include described according to the weight of load and range to be scanned
Bed board is along kinematic parameter and the bed board kinematic parameter in a second direction of first direction, and the second direction is perpendicular to described
First direction；Obtain first image of the bed board under the kinematic parameter；Using default correction algorithm to first shadow
As being handled to obtain correction image；The standard video for being registrated the correction image and the bed board obtains the first registration result.
The third aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program realizes the method for ensuring quality of any hospital bed in the embodiment of the present invention when program is executed by processor.
The technical solution of the embodiment of the present invention determines the fortune of the bed board by the weight and range to be scanned according to load
Dynamic parameter, the kinematic parameter include the bed board along kinematic parameter and the bed board movement in a second direction of first direction
Parameter, the second direction is perpendicular to the first direction；Obtain first image of the bed board under the kinematic parameter, energy
Movement of the bed board when there is load is enough simulated by kinematic parameter, convenient for operation；Using default correction algorithm to first shadow
As being handled to obtain correction image；The standard video for being registrated the correction image and the bed board obtains the first registration result；
Judge whether the default correction algorithm is effective based on first registration result.Above-mentioned technical proposal solves the prior art and exists
When to hospital bed Quality Control, the very complicated problem of quality control process realizes the Quality Assurance process for simplifying hospital bed, convenient for user's
Practical operation more accurately carries out the Quality Control of hospital bed.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the method for ensuring quality of the hospital bed provided in the embodiment of the present invention one；
Fig. 2 is a kind of flow chart of the method for ensuring quality of the hospital bed provided in the embodiment of the present invention two；
Fig. 3 is a kind of structural schematic diagram of the quality assurance device of the hospital bed provided in the embodiment of the present invention three；
Fig. 4 is a kind of structural schematic diagram of the radiotherapy system provided in the embodiment of the present invention four.
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.
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 method for ensuring quality for hospital bed that the embodiment of the present invention one provides, and the present embodiment can fit
The case where for guaranteeing the quality of hospital bed, is particularly suitable for the quality assurance of linear accelerator therapeutic bed.This method can be by putting
Treatment system is penetrated to execute, which can be realized by hardware and/or software, which can be integrated in equipment (such as radiotherapy
Equipment) in execute, specifically comprise the following steps:
Step 101, the kinematic parameter that the bed board is determined according to the weight and range to be scanned of load.
Wherein, the kinematic parameter includes the bed board along the kinematic parameter of first direction and the bed board in a second direction
Kinematic parameter, the second direction is perpendicular to the first direction.
Wherein, the hospital bed includes pedestal and the bed board for being coupled in the pedestal.Bed board can setting according to kinematic parameter
It sets and is moved to target position.
Wherein, first direction can be hospital bed level into the direction of bed.Second direction can be the direction perpendicular to ground,
And the second direction is perpendicular to the first direction.Second direction can be the direction far from or close to ground.
It should be noted that the process of hospital bed into bed is first to accelerate, pilot process at the uniform velocity, then slows down to reach target position
It sets.Kinematic parameter can specifically include movement velocity, move distance, the direction of motion, acceleration of motion of bed board etc..
Wherein, load may include various die bodys and counterweight, wherein the shape size of die body without limitation, specifically may be used
To include die body, the spherical die body etc. of square shape.The weight of load can be configured according to actual needs, such as can
Think 50 kilograms.The range that range to be scanned needs to scan may include position to be scanned of object to be scanned etc..
Optionally, the kinematic parameter of the bed board is determined according to the weight of load and range to be scanned, comprising:
According to the determining weight with the load of the weight of the load and range-based searching mapping table to be scanned and to be scanned
The corresponding bed board image of range, the corresponding pass between the mapping table record different weight and different scanning range and bed board image
System；The kinematic parameter of the bed board is determined according to the corresponding bed board image.
The kinematic parameter of the bed board includes the kinematic parameter of bed board kinematic parameter in a first direction and second direction.
Wherein, the corresponding relationship between mapping table record different weight and different scanning range and bed board image, because not
With the length stretched out relative to pedestal of scanning range and bed board match, so in one embodiment, scanning range can be with
It is described when bed board does not move as benchmark zero point.Therefore different weight and different scanning model can be recorded by mapping table
Enclose the corresponding relationship between bed board image.Corresponding bed board is determined according to the weight of load and range-based searching mapping table to be scanned
Image, so that it is determined that corresponding kinematic parameter, control bed board is moved according to the kinematic parameter to realize in no actual loading
In the case of bed board sinking situation under the weight and range to be scanned of different load is simulated by the movement of bed board.
It should be noted that scanning as object to be scanned (for example, patient) enters, bed board opposite base can be stretched more
More length, bed board sinking are deepened therewith, and the bed board image of shooting gradually down, then can be according to the bed board of certain time period
Image and load weight and range to be scanned establish corresponding relationship, transported by control bed board to close to the direction on ground
It is dynamic, then it can simulate the process that bed board is sunk due to the weight of object to be scanned.It is of course also possible to by making bed board to separate
The direction on ground moves, the bed board image under obtaining bed board at a time because with object to be scanned (for example, patient) into
Enter scanning, one end that a certain moment lower bed board is stretched is downward, and one end close to pedestal is up, therefore to be equivalent to bed board
It is moved upwards to higher and higher side, if control bed board is moved to the direction far from ground, needs to shoot several bed board shadows
Picture, to simulate the process that bed board is sunk due to object to be scanned.Therefore, optionally, second direction can be closely face
Direction, the advantages of this arrangement are as follows, the frequency of shooting bed board image can be reduced.
Optionally, the mapping table can be obtained by test.Specifically, can be certain by uniformly being placed on bed board
The load (such as 30kg) of weight sets model to be scanned if hospital bed initial position (position that bed board opposite base does not move) is 0
(such as head, and determine that scanning range is 20cm~50cm, sweep length 30cm) is enclosed, image scanning then is carried out to hospital bed
(such as CT scan) handles after obtaining reconstruction image scan data, can be using the sagittal view picture of hospital bed as hospital bed
Corresponding bed board image (image that bed board image at this time is bending shape) under present load and range to be scanned.Increase
Or reduce certain load weight (such as increasing or decreasing 1kg every time), the corresponding bed board image of repeated acquisition, available bed board
Bed board image under the weight of different loads.Under different loads weight, change range to be scanned, repeated acquisition bed board shadow
Picture, so as to obtain bed board image of the bed board under different loads weight and different scanning range.
In another embodiment, the scanning of gamut can be carried out to bed board image under different loads weight, so as to
To obtain the bed board image of full scan range of the bed board under different loads weight.In the image, complete bed board is had recorded
Image.When in use, corresponding a part of bed board image can be obtained i.e. from complete bed board image according to range to be scanned
It can.
It in some embodiments, can be in different kinematic parameter (kinematic parameter and second direction including first direction
Kinematic parameter) control bed board move and record corresponding bed board image, according to the bed board image obtained under current kinetic parameters
It is matched with the bed board image in mapping table according to similarity, the weight of load and the fortune of scanning range and bed board can be obtained
Corresponding relationship between dynamic parameter, to realize the effect for replacing load with the movement of bed board.It can be according to sagittal plane upper bed board
Bed board image (image of bending shape), determine hospital bed in a first direction and in second direction kinematic parameter (including
Movement velocity etc.).In actual hospital bed quality assurance (Quality Control), display Quality Control parameter is (including range to be scanned and load
Weight) selection interface；It receives user and operation is chosen to Quality Control parameter in the selection interface, choose operation true according to described
Settled preceding Quality Control parameter.By providing the user with the option of different ranges and loading condition to be scanned, control hospital bed is according to choosing
Range to be scanned according to corresponding kinematic parameter be moved to target position with load, to carry out quality assurance to hospital bed.
In some embodiments, it can be obtained according to the weight and range-based searching mapping table to be scanned of present load corresponding
Bed board image.The image obtained to lookup is analyzed, to obtain the kinematic parameter of bed board.For example, being searched by analysis
To bed board image carry out analyzing movement relation of the available bed board between first direction and second direction, general bed board edge
The kinematic parameter of first direction be it is known, may thereby determine that the kinematic parameter of bed board in a second direction.
Optionally, the kinematic parameter of the bed board is determined according to the weight of load and range to be scanned, comprising:
Determine the bed board along the movement of first direction according to the weight of the load and range-based searching mapping table to be scanned
Corresponding relationship between parameter and kinematic parameter in a second direction, the mapping table record different weight and different scanning range
Under, corresponding relationship of the bed board between the kinematic parameter and kinematic parameter in a second direction of first direction；
According to corresponding relationship of the bed board between the kinematic parameter and kinematic parameter in a second direction of first direction
Determine the kinematic parameter of the bed board.
Specifically, corresponding bed can be acquired by placing the load of constant weight on bed board and range to be scanned being arranged
Project picture, changes the weight and the corresponding bed board image of range repeated acquisition to be scanned of load respectively, and by different loads
Weight, range to be scanned are recorded with corresponding bed board image.Later, control bed board (not placing load) in a first direction with
Second direction moved respectively with corresponding kinematic parameter, obtains the bed board shadow under corresponding different kinematic parameter
Picture.By the bed board image progress of the weight and range to be scanned of collected bed board image and pre-stored different loads
Match, if bed board (not placing load) move according to corresponding kinematic parameter in current first direction in second direction
To the bed board image that is obtained under the load of specified weight, range to be scanned of bed board image and bed board match, then can recognize
The effect under the load of specified weight, range to be scanned can be simulated under current kinetic parameters for bed board, it can will load
Weight and range to be scanned carried out with the kinematic parameter of bed board it is corresponding；And the bed board is further recorded along first direction
Kinematic parameter and kinematic parameter in a second direction between corresponding relationship, match corresponding different weight and scanning range,
By under different weight and different scanning range, kinematic parameter and kinematic parameter in a second direction of the bed board along first direction
Between corresponding relationship record in the mapping table, may be implemented directly by mapping table according to the weight of the load and to be scanned
Range determines kinematic parameter and kinematic parameter in a second direction of the bed board along first direction.It should be noted that bed board
(removing acceleration and moderating process) during the motion is uniform motion in a first direction.
It optionally, in one embodiment, can be by placing the load of constant weight on bed board and model to be scanned being arranged
The corresponding bed board image of acquisition is enclosed, changes the weight and the corresponding bed board image of range repeated acquisition to be scanned of load respectively, and
After the weight of different loads, range to be scanned are recorded with corresponding bed board image, record is appointed whithin a period of time
The position of a moment (such as can be every certain predetermined time) bed board (can determine bed by the bed board image of acquisition one by one
Board position), to obtain the kinematic parameter of the motion profile of bed board and bed board in a period of time, by kinematic parameter (such as speed
Degree etc.) bed board is decomposed into along the kinematic parameter of first direction and second direction, it obtains the bed board and joins along the movement of first direction
Corresponding relationship and record between several and kinematic parameter in a second direction, acquire corresponding bed board image；By collected bed
Plate image is matched with the bed board image of the weight of pre-stored different loads and range to be scanned, if bed board (is not put
Set load) in current first direction and the bed board image and bed that are moved in second direction according to corresponding kinematic parameter
The bed board image that plate obtains under the load of specified weight, range to be scanned matches, it may be considered that bed board is in current kinetic
The effect under the load of specified weight, range to be scanned can be simulated under parameter.By under different weight and different scanning range, institute
State corresponding relationship record of the bed board between the kinematic parameter and kinematic parameter in a second direction of first direction in the mapping table,
Directly the bed board can be determined along the fortune of first direction according to the weight of load and range to be scanned by the mapping table of record
Dynamic parameter and kinematic parameter in a second direction.This mode can reduce the memory space of storage bed board image, can reduce
The frequency of bed board image is shot, and calculation is relatively simple, conveniently and efficiently according to the weight of the load and to be scanned
Range-based searching mapping table determines the kinematic parameter of the bed board, thus the reality by the movement simulation bed board of bed board when there is load
Border movement.
When user needs to carry out the quality assurance of hospital bed, that is, when needing to carry out therapeutic bed sinking correction Quality Control (QA),
User selects the weight of range to be scanned and load as needed, automatically determines out kinematic parameter and edge of the bed board along first direction
The kinematic parameter of second direction, preparation start to scan.During CT scan, bed board is joined along first direction according to the movement determined
Number movement, while being moved in a second direction according to the kinematic parameter determined, therefore, CT scan can recorde joins in current kinetic
Bed board image under several, to simulate the motion conditions in the case where there is loading condition using non-loaded bed board.
In one embodiment, since the extension elongation of bed board opposite base is different, deformation is also different, therefore, bed
Plate can do variable motion in a second direction.
It should be noted that the method for the present embodiment can simulate bed board and matched by moving hospital bed in a second direction
The curved process of weight, it is cumbersome multiple without carrying out handling loads, putting load etc. so that practical when executing the quality assurance of hospital bed
Miscellaneous operating process, only need to execute hospital bed quality assurance before, be obtained ahead of time load weight and range to be scanned and
Corresponding relationship between the kinematic parameter of the bed board, to control the movement of bed board, according to corresponding relationship to realize that simulation is negative
Carry the effect for bending hospital bed.
Step 102 obtains first image of the bed board under the kinematic parameter.
The bed board is controlled by kinematic parameter to be moved, and first image of the bed board under the kinematic parameter is shot,
Wherein, the first image can be CT images.It is supported the situation of press-bending since bed board can simulate under kinematic parameter, so
One image is the curved hospital bed image with certain deformation, and the first image can be a width image, or continuous
Several dynamic images.In one embodiment, the first image is the fault image of bed board, and the fault image is along the bed board
Length direction arrangement.
Step 103 handles first image using default correction algorithm to obtain correction image.
Wherein, default correction algorithm can the first shadow by way of image procossing by bed board under the kinematic parameter
As being corrected, correction image is obtained.Default correction algorithm can be correction algorithm commonly used in the prior art, for image
The correction of deformation.
The standard video of step 104, the registration correction image and the bed board obtains the first registration result.
Wherein, the standard video of bed board refer to bed board under static state there is no curved standard videos.
Specifically, correction image can be registrated with the standard video of bed board by preset registration Algorithm, thus
Obtain the first registration result.The quality for guaranteeing hospital bed is further realized by registration result.In one embodiment, the first registration knot
Fruit may include transformation relation, the deviation etc. between standard video and correction image.Preset registration Algorithm can be existing
Registration Algorithm, herein without limiting.
Step 105 judges whether the default correction algorithm is effective based on first registration result.
User can directly observe first registration result, observe whether the default correction algorithm is effective.It can also
To be judged automatically by computer to the first registration result, such as the number of the characteristic point by being matched in the first registration result
Judged, if the number for the characteristic point being matched to reaches preset number, can judge automatically out default correction algorithm is to have
Effect, so as to which hospital bed to be used to further work；If the number for the characteristic point being matched to does not reach preset number
Reason is required to look up, failure is checked, to ensure that hospital bed can be used in further working.
Optionally, first registration result is the offset between the correction image and the standard video of the bed board,
Judge whether the default correction algorithm is effective according to the offset.Specifically, can be by calculating the correction image and institute
The shift value between the standard video of bed board is stated, when shift value is lower than preset threshold, illustrates that default correction algorithm is effective,
When shift value is more than preset threshold, illustrate that default correction algorithm is invalid.
Optionally, the method for the present embodiment can also show the first of the standard video of the correction image and the bed board
Blending image；Judge whether the default correction algorithm is effective according to first blending image.
Specifically, the correction image is registrated with the standard video of the bed board, after registration, can carry out pre-
The standard video of the correction image and the bed board is carried out image co-registration by processing, and permeate an image, i.e., the first fusion
Image.The advantages of this arrangement are as follows being able to use family is visually observed that whether default correction algorithm is effective.If it is observed that
First blending image does not deviate significantly, then may determine that default correction algorithm is effectively, if it is observed that first melts
Close image have apparent offset, then may determine that default correction algorithm be it is invalid, need to carry out subsequent processing.
It should be noted that the method for ensuring quality of hospital bed provided in this embodiment can carry out one every certain frequency
It is secondary, such as judge whether the default correction algorithm is effective before hospital bed is used for real work weekly.
The technical solution of the embodiment of the present invention determines the fortune of the bed board by the weight and range to be scanned according to load
Dynamic parameter, the kinematic parameter include the bed board along kinematic parameter and the bed board movement in a second direction of first direction
Parameter, the second direction is perpendicular to the first direction；Obtain first image of the bed board under the kinematic parameter, energy
Movement of the bed board when there is load is enough simulated by kinematic parameter, convenient for operation；Using default correction algorithm to first shadow
As being handled to obtain correction image；The standard video for being registrated the correction image and the bed board obtains the first registration result；
Judge whether the default correction algorithm is effective based on first registration result.Above-mentioned technical proposal solves the prior art and exists
When to hospital bed Quality Control, the very complicated problem of quality control process realizes the Quality Assurance process for simplifying hospital bed, convenient for user's
Practical operation more accurately carries out the Quality Control of hospital bed.
Moreover, each step in the embodiment in figure 1 can be executed by computer, therefore, the present invention can be to hospital bed
Correction algorithm realize automatic quality assurance.
Embodiment two
Fig. 2 is a kind of flow chart of the method for ensuring quality of hospital bed provided by Embodiment 2 of the present invention, and the present embodiment is upper
On the basis of stating embodiment, optionally it is registrated first image and obtains second with the standard video of the bed board and be registrated knot
Fruit；Compare first registration result and second registration result judges whether the default correction algorithm is effective.
Optionally, the method also includes: according to the weight of load and range to be scanned carry out simulation calculate determine described in
The kinematic parameter of bed board.
Optionally, the method also includes: the display correction image is merged with the first of the standard video of the bed board
Second blending image of the standard video of image and the first image of display and the bed board；
Judge whether the default correction algorithm is effective according to first blending image and the second blending image.
As shown in Fig. 2, the method for ensuring quality of hospital bed provided in this embodiment specifically includes the following steps:
Step 201, the kinematic parameter that the bed board is determined according to the weight and range to be scanned of load.
Wherein, the kinematic parameter includes the bed board along the kinematic parameter of first direction and the bed board in a second direction
Kinematic parameter, the second direction is perpendicular to the first direction.
Optionally, the method for the present embodiment can be with when determining the kinematic parameter of the bed board: according to the weight of load
The kinematic parameter that simulation calculates the determining bed board is carried out with range to be scanned.
In one embodiment, model can be established according to the material of bed board, geometry, weight of load etc., led to
The case where crossing the method simulation bed board stress of computer modeling, carries out analogue simulation according to the weight of load and range to be scanned,
Establish mathematical model (such as the function of first order, two between the weight and range to be scanned and the kinematic parameter of the bed board of load
Rank function), according to obtained mathematical model, when the weight of load and range to be scanned are input to mathematical model, Ke Yizhi
It connects to obtain the kinematic parameter of corresponding bed board.
Step 202 obtains first image of the bed board under the kinematic parameter.
Step 203 handles first image using default correction algorithm to obtain correction image.
The standard video of step 204, the registration correction image and the bed board obtains the first registration result.
The standard video of step 205, registration first image and the bed board obtains the second registration result.
Wherein, registration result of second registration result between the first image and the standard video of the bed board.Optionally,
Second registration result can offset between the first image and standard video.
Step 206, first registration result and second registration result judge that the default correction algorithm is
It is no effective.
By calculating the offset corrected between image and the standard video of the bed board and the first image and the bed
Offset between the standard video of plate, and compare two offsets, so as to judge whether the default correction algorithm is effective.It can
Choosing, if the offset between the correction image and the standard video of the bed board is less than or equal to the first image and the bed
It is effective to represent default correction algorithm for offset between the standard video of plate.For example, the standard of the correction image and the bed board
Offset between image is less than preset threshold, then it is effective to represent default correction algorithm.If the correction image and the bed board
Standard video between offset be greater than offset between the first image and the standard video of the bed board, then represent default correction
Algorithm cannot effectively correct the deformation of bed board, can prompt user.
Optionally, the method for the present embodiment can also include: the standard video of the display correction image and the bed board
The first blending image and display the first image and the bed board standard video the second blending image；According to described first
Blending image and the second blending image judge whether the default correction algorithm is effective.
Wherein, the second blending image is that the standard video of the first image and the bed board is carried out the figure that image co-registration obtains
Picture.
In one embodiment, can by it is described correction image and the bed board standard video the first blending image and
Second blending image of the first image and the standard video of the bed board is shown that user can also see on software interface
Two width blending images are examined, to more intuitively see whether default correction algorithm is effective.
It should be noted that it is convenient to each technical characteristic to be used for the purpose of to the number of step in the embodiment of the present invention
It is clearly explained, not to the considered critical of execution sequence.Illustratively, step 204 and step 205 in the present embodiment
Sequentially with no restriction, such as step 204 can execute parallel with step 205, can also first carry out step 205, execute step again
204。
The technical solution of the present embodiment obtains second by the standard video of registration first image and the bed board and matches
Quasi- result；The default correction is more intuitively observed by the comparison of first registration result and second registration result
The working condition of algorithm more accurately can judge whether the default correction algorithm is effective according to registration result.In turn, according to
The weight of load and range to be scanned carry out simulation and calculate the kinematic parameter for determining the bed board, conveniently according to load
Weight and range to be scanned determine the kinematic parameter of the bed board.In turn, the standard of the correction image and the bed board is shown
Second blending image of the standard video of the first blending image and the first image of display and the bed board of image；According to described
First blending image and the second blending image judge whether the default correction algorithm is effective, and user is made to observe directly fusion effect
Fruit intuitively judges whether the default correction algorithm is effective.
Embodiment three
Fig. 3 is a kind of structural schematic diagram of the quality assurance device of the hospital bed provided in the embodiment of the present invention three.The present invention
The quality assurance of hospital bed provided by any embodiment of the invention can be performed in the quality assurance device of hospital bed provided by embodiment
The specific structure of method, the device is as follows: kinematic parameter determining module 31, rectification module 33, is matched at first image acquiring module 32
Quasi-mode block 34 and judgment module 35.The device of the present embodiment can be realized by way of hardware and/or software, and can generally collect
At in radiotherapy system.
The hospital bed includes pedestal and the bed board for being coupled in the pedestal.
Wherein, kinematic parameter determining module 31, for determining the bed board according to the weight and range to be scanned of load
Kinematic parameter, the kinematic parameter include the bed board along kinematic parameter and the bed board fortune in a second direction of first direction
Dynamic parameter, the second direction is perpendicular to the first direction；
First image acquiring module 32, for obtaining first image of the bed board under the kinematic parameter；
Rectification module 33 obtains correction image for being handled using default correction algorithm first image；
Registration module 34, the standard video for being registrated the correction image and the bed board obtain the first registration result；
Judgment module 35, for judging whether the default correction algorithm is effective based on first registration result.
The technical solution of the embodiment of the present invention determines the fortune of the bed board by the weight and range to be scanned according to load
Dynamic parameter, the kinematic parameter include the bed board along kinematic parameter and the bed board movement in a second direction of first direction
Parameter, the second direction is perpendicular to the first direction；Obtain first image of the bed board under the kinematic parameter, energy
Movement of the bed board when there is load is enough simulated by kinematic parameter, convenient for operation；Using default correction algorithm to first shadow
As being handled to obtain correction image；The standard video for being registrated the correction image and the bed board obtains the first registration result；
Judge whether the default correction algorithm is effective based on first registration result.Above-mentioned technical proposal solves the prior art and exists
When to hospital bed Quality Control, the very complicated problem of quality control process realizes the Quality Assurance process for simplifying hospital bed, convenient for user's
Practical operation more accurately carries out the Quality Control of hospital bed.
Optionally, described device further include: the second registration module.
Second registration module obtains second with the standard video of the bed board for being registrated first image and is registrated knot
Fruit.
The judgment module 35 can also first registration result and second registration result judge it is described pre-
If whether correction algorithm is effective.
Optionally, kinematic parameter determining module is particularly used in:
According to the determining weight with the load of the weight of the load and range-based searching mapping table to be scanned and to be scanned
The corresponding bed board image of range, the corresponding pass between the mapping table record different weight and different scanning range and bed board image
System；
The kinematic parameter of the bed board is determined according to the corresponding bed board image.
Optionally, kinematic parameter determining module is particularly used in:
Determine the bed board along the movement of first direction according to the weight of the load and range-based searching mapping table to be scanned
Corresponding relationship between parameter and kinematic parameter in a second direction, the mapping table record different weight and different scanning range
Under, corresponding relationship of the bed board between the kinematic parameter and kinematic parameter in a second direction of first direction；
According to corresponding relationship of the bed board between the kinematic parameter and kinematic parameter in a second direction of first direction
Determine the kinematic parameter of the bed board.
Optionally, described device further include: kinematic parameter analog module.
Kinematic parameter analog module is used to carry out simulation according to the weight and range to be scanned of load to calculate to determine the bed
The kinematic parameter of plate.
Optionally, described device further include: display module.
Display module, the first blending image of the standard video for showing the correction image and the bed board；
Judge whether the default correction algorithm is effective according to first blending image.
Optionally, first registration result is the offset between the correction image and the standard video of the bed board,
Judge whether the default correction algorithm is effective according to the offset.
The quality assurance device of hospital bed provided by the embodiment of the present invention can be performed provided by any embodiment of the invention
The method for ensuring quality of hospital bed has the corresponding functional module of execution method and beneficial effect.
Example IV
Fig. 4 is a kind of structural schematic diagram of the radiotherapy system provided in the embodiment of the present invention four.The embodiment of the present invention
The method for ensuring quality of hospital bed provided by any embodiment of the invention can be performed in provided radiotherapy system, which controls
The specific structure for the treatment of system is as follows: the quality assurance device 42 and hospital bed 43 of radiotherapy equipment 41, hospital bed.
Wherein, the hospital bed includes pedestal 44 and the bed board 45 for being coupled in the pedestal.
Wherein, the quality assurance device 42 of the hospital bed is configured to:
Determine that the kinematic parameter of the bed board, the kinematic parameter include described according to the weight of load and range to be scanned
Bed board is along kinematic parameter and the bed board kinematic parameter in a second direction of first direction, and the second direction is perpendicular to described
First direction；Obtain first image of the bed board under the kinematic parameter；Using default correction algorithm to first shadow
As being handled to obtain correction image；The standard video for being registrated the correction image and the bed board obtains the first registration result.
The quality assurance device 42 of hospital bed can be with 43 communication connection of hospital bed.
Bed board 45 can be moved according to kinematic parameter, and fortune of the bed board when there is load can be simulated by kinematic parameter
It is dynamic, to realize the quality assurance of hospital bed.
Optionally, the quality assurance device 42 is further configured to:
Judge whether the default correction algorithm is effective based on first registration result.
Optionally, the quality of any hospital bed of the embodiment of the present invention can also be performed in the quality assurance device 42 of hospital bed
Ensuring method.
The technical solution of the embodiment of the present invention determines the fortune of the bed board by the weight and range to be scanned according to load
Dynamic parameter, the kinematic parameter include the bed board along kinematic parameter and the bed board movement in a second direction of first direction
Parameter, the second direction is perpendicular to the first direction；Obtain first image of the bed board under the kinematic parameter, energy
Movement of the bed board when there is load is enough simulated by kinematic parameter, convenient for operation；Using default correction algorithm to first shadow
As being handled to obtain correction image；The standard video for being registrated the correction image and the bed board obtains the first registration result.
In turn, judge whether the default correction algorithm is effective based on first registration result, realized with the correction algorithm to hospital bed
Automatic quality assurance.Above-mentioned technical proposal solves the prior art when to hospital bed Quality Control, and quality control process is very complicated to ask
Topic realizes the Quality Assurance process for simplifying hospital bed, convenient for the practical operation of user.
The present embodiment in specific implementation, can have corresponding technical effect refering to above-mentioned each embodiment.
Embodiment five
The embodiment of the present invention five also provides a kind of storage medium comprising computer executable instructions, and the computer can be held
Row is instructed when being executed by computer processor for executing a kind of method for ensuring quality of hospital bed,
The hospital bed includes pedestal and the bed board for being coupled in the pedestal, which is characterized in that the described method includes:
Determine that the kinematic parameter of the bed board, the kinematic parameter include described according to the weight of load and range to be scanned
Bed board is along kinematic parameter and the bed board kinematic parameter in a second direction of first direction, and the second direction is perpendicular to described
First direction；
Obtain first image of the bed board under the kinematic parameter；
First image is handled using default correction algorithm to obtain correction image；
The standard video for being registrated the correction image and the bed board obtains the first registration result；
Judge whether the default correction algorithm is effective based on first registration result.
Certainly, a kind of storage medium comprising computer executable instructions, computer provided by the embodiment of the present invention
The method operation that executable instruction is not limited to the described above, can also be performed the matter of hospital bed provided by any embodiment of the invention
Measure the relevant operation in ensuring method.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but in many cases, the former is more
Good embodiment.Based on this understanding, technical solution of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which can store in computer readable storage medium
In, floppy disk, read-only memory (Read-Only Memory, ROM), random access memory (Random such as computer
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes method described in each embodiment of the present invention.
It is worth noting that, in the embodiment of the quality assurance device of above-mentioned hospital bed, included each unit and module
It is only divided according to the functional logic, but is not limited to the above division, as long as corresponding functions can be realized；
In addition, the specific name of each functional 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 method for ensuring quality of hospital bed, the hospital bed includes pedestal and the bed board for being coupled in the pedestal, and feature exists
In, which comprises
Determine that the kinematic parameter of the bed board, the kinematic parameter include the bed board according to the weight of load and range to be scanned
Along kinematic parameter and the bed board kinematic parameter in a second direction of first direction, the second direction is perpendicular to described first
Direction；
Obtain first image of the bed board under the kinematic parameter；
First image is handled using default correction algorithm to obtain correction image；
The standard video for being registrated the correction image and the bed board obtains the first registration result；
Judge whether the default correction algorithm is effective based on first registration result.
2. the method according to claim 1, wherein further include:
The standard video for being registrated first image and the bed board obtains the second registration result；
Compare first registration result and second registration result judges whether the default correction algorithm is effective.
3. the method according to claim 1, wherein determining the bed according to the weight of load and range to be scanned
The kinematic parameter of plate, comprising:
According to the weight of the load and the determining weight and range to be scanned with the load of range-based searching mapping table to be scanned
Corresponding bed board image, the corresponding relationship between the mapping table record different weight and different scanning range and bed board image；
The kinematic parameter of the bed board is determined according to the corresponding bed board image.
4. the method according to claim 1, wherein determining the bed according to the weight of load and range to be scanned
The kinematic parameter of plate, comprising:
Determine the bed board along the kinematic parameter of first direction according to the weight of the load and range-based searching mapping table to be scanned
With the corresponding relationship between kinematic parameter in a second direction, the mapping table is recorded under different weight and different scanning range,
Corresponding relationship of the bed board between the kinematic parameter and kinematic parameter in a second direction of first direction；
It is determined according to corresponding relationship of the bed board between the kinematic parameter and kinematic parameter in a second direction of first direction
The kinematic parameter of the bed board.
5. the method according to claim 1, wherein
The kinematic parameter that simulation calculates the determining bed board is carried out according to the weight of load and range to be scanned.
6. the method according to claim 1, wherein further include:
Show the first blending image of the standard video of the correction image and the bed board；
Judge whether the default correction algorithm is effective according to first blending image.
7. the method according to claim 1, wherein first registration result be the correction image with it is described
Offset between the standard video of bed board judges whether the default correction algorithm is effective according to the offset.
8. a kind of radiotherapy system characterized by comprising the quality assurance of radiotherapy equipment, hospital bed and hospital bed fills
It sets, the hospital bed includes pedestal and the bed board for being coupled in the pedestal, wherein the quality assurance device of the hospital bed is configured
At:
Determine that the kinematic parameter of the bed board, the kinematic parameter include the bed board according to the weight of load and range to be scanned
Along kinematic parameter and the bed board kinematic parameter in a second direction of first direction, the second direction is perpendicular to described first
Direction；Obtain first image of the bed board under the kinematic parameter；Using default correction algorithm to first image into
Row processing obtains correction image；The standard video for being registrated the correction image and the bed board obtains the first registration result.
9. radiotherapy system as claimed in claim 8, which is characterized in that the quality assurance device is further configured to:
Judge whether the default correction algorithm is effective based on first registration result.
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 method for ensuring quality of the hospital bed as described in any in claim 1-7 is realized when execution.
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