CN110301925A - It is a kind of to facilitate the X-ray imaging system for adjusting each component physical alignment - Google Patents
It is a kind of to facilitate the X-ray imaging system for adjusting each component physical alignment Download PDFInfo
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- CN110301925A CN110301925A CN201910750489.7A CN201910750489A CN110301925A CN 110301925 A CN110301925 A CN 110301925A CN 201910750489 A CN201910750489 A CN 201910750489A CN 110301925 A CN110301925 A CN 110301925A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention belongs to X-ray applied technical fields, disclose a kind of X-ray imaging system for facilitating and adjusting each component physical alignment.The present invention includes ray source, ray receiving end, universal regulating mechanism and post adjustment mechanism, further includes the control module connecting respectively with ray source, ray receiving end, universal regulating mechanism and post adjustment institutional communication.The distance of ray source to ray receiving end in the present invention can be with consecutive variations, spatial position is adjustable, the X-ray that ray source issues is incident on the variable-angle of ray receiving end, realize the purpose of each portion's physical alignment of adjustment X-ray imaging system, it is easy to use, improve radioscopic image at tablet quality, and avoid human body by unnecessary radiation, be suitable for promoting the use of.
Description
Technical field
The invention belongs to X-ray applied technical fields, and in particular to a kind of to facilitate the X-ray imaging for adjusting each component physical alignment
System.
Background technique
X-ray image can make doctor have one to get information about the structure situation of histoorgan in patient body.It is existing
X-ray imaging system be made of three parts, respectively ray source and its attachment component part, ray receiving end and its attached
Components and other module sections；Wherein, radiographic source end part and ray receive linked manner there are three types of end parts: complete
It does not link entirely, needs to adjust separately this two-part position when shooting X-ray image；It is linked by physical structures such as brackets, from
And the movement of same distance is done in the same direction；Ray source and ray receive end position and fix and cannot change.
But existing X-ray imaging system has the disadvantage in that
A. the X-ray imaging system entirety degree of coupling to be linked by physical structure is excessively high, if a portion breaks down,
It is difficult to be accurately located failure cause, and complicated integral structure, it is expensive, it is unfavorable for installing and safeguards；
B. the existing X-ray imaging system not linked completely for ray source and ray receiving end, ray source and ray
Receiving end generally can only manually adjust position by X-ray techmician, in order to guarantee that ray source and ray receiving end are kept in height
Unanimously, X-ray techmician needs to adjust separately two-part position, cumbersome, and error is larger；
C. ray source and ray receive the fixed X-ray imaging system of end position can only by adjusting object to be shot from
The position of body equally exists to guarantee object to be shot center and ray source center, ray receiving end center physical alignment
The larger situation of error is unable to meet demand when having particular/special requirement to X-ray incident angle, distance etc.；
D. the case where X-ray non-normal incidence issued in the prior art without ray source is to ray receiving end, and penetrate
Line source end to the distance between ray receiving end can not consecutive variations, it is inflexible.
Summary of the invention
It is an object of that present invention to provide a kind of X-ray imaging systems for facilitating and adjusting each component physical and being aligned；The present invention solves
Existing X-ray imaging system degree of coupling is too high or too low, the method for adjustment of hardware position and posture is inflexible, inconvenient
In use, be intelligent low with the degree of automation the problems such as；The distance of ray source to ray receiving end in the present invention can connect
Continuous variation, spatial position is adjustable, and the X-ray that ray source issues is incident on the variable-angle of ray receiving end, and the present invention is logical
Acquisition nature light image is crossed, obtains calculating the central point at patient position to be detected, ray receiving end central point and ray source
Central point, then in conjunction with ray source angle (the i.e. folder of radiographic source transverse plane normal vector and ray receiving end plane normal vector
Angle), the distance of ray source body surface into space, realize the purpose of each portion's physical alignment of adjustment X-ray imaging system.
The technical scheme adopted by the invention is as follows:
It is a kind of to facilitate the X-ray imaging system for adjusting the alignment of each component physical including ray source, ray receiving end, universal
Regulating mechanism and post adjustment mechanism, further include respectively with ray source, ray receiving end, universal regulating mechanism and post adjustment
The control module of institutional communication connection；
Ray source, for obtaining nature light image, range information and angle information, and for issuing X-ray and laser
Pattern；
Ray receiving end, for receiving the X-ray of ray source sending and exporting X-ray image；
Universal regulating mechanism for adjusting radiographic source end spaces position, and adjusts the X-ray and ray of ray source sending
Angle between receiving end；
Post adjustment mechanism, for adjusting the height of ray receiving end；
Control module, for receiving the height for calculating ray receiving end after nature light image, range information and angle information
The angle information of information, the location information of ray source and ray source, then according to the elevation information of ray receiving end, ray
The location information of source and the angle information control universal regulating mechanism of ray source and the start and stop of post adjustment mechanism.
Preferably, the X-ray imaging system that above-mentioned facilitating adjusts each component physical alignment further includes logical with control module
Believe the display end of connection；The display end is used to show nature light image, range information, angle information, ray receiving end
The angle information of elevation information, the location information of ray source and/or ray source.
It further include being embedded on shell and light field region is consistent preferably, the ray source includes shell
Laser source and x-ray source, further include be embedded on shell and respectively with control module communication connection image collecting device, survey
Away from device and angle measurement unit；For obtaining nature light image, the range unit is used for the image collecting device
Obtain the distance between multiple preset reference points information；The angle measurement unit is used to obtain laser source and x-ray source
Operation angle.
Preferably, the ray source further includes the light concentrator for being set to the opening of shell；The light concentrator
For controlling the light field region of laser source and x-ray source；The light concentrator and control module communicates to connect.
Preferably, the ray source further includes the high pressure for communicating to connect with control module and connecting with x-ray source
Generator；The high pressure generator is used to provide operating voltage for x-ray source.
Preferably, the ray source further includes being set on shell to manually adjust bracket；The manual tune
Section bracket is used to manually adjust the spatial position of shell.
Preferably, the control module is also used to detect human body key point in nature light image, laser pattern closes
Key point and ray receiving end key point, and calculate the central point at position to be detected, the central point of X-ray source and ray receiving end
Central point.
Preferably, the ray receiving end includes that flat panel detector and package are set to box on the outside of flat panel detector
Body；The bottom of the box body is fixedly connected with post adjustment mechanism；2 or more key points are preset on the box body；Institute
The box body key point that the ray receiving end key point stated is 2 or more.
Preferably, the ray receiving end further includes hand steered bracket；2 or more are provided on the hand steered bracket
The spare key point of bracket；When box body key point is not detected in natural light image, using the spare key point of bracket as ray
Receiving end key point.
Preferably, the post adjustment mechanism includes upright bar, motor and the biography being coupled with the output end of motor
Dynamic component；The bottom of the box body is fixedly connected with transmission component；The motor and control module communicates to connect.
Preferably, the universal regulating mechanism uses Universal arm；The range unit using laser range finder or
Binocular camera；The angle measurement unit uses gyroscope.
Preferably, the transmission component
The invention has the benefit that
1) distance of the ray source in the present invention to ray receiving end can be with consecutive variations, and spatial position is adjustable, penetrates
The X-ray that line source end issues is incident on the variable-angle of ray receiving end, and the present invention is calculated by obtaining nature light image
The central point, ray receiving end central point and ray source central point at patient position to be detected out, then in conjunction with ray source angle
Spend (i.e. the angle of radiographic source transverse plane normal vector and ray receiving end plane normal vector), ray source body surface into space
Distance, realize adjustment X-ray imaging system each portion's physical alignment purpose, it is easy to use, improve the in blocks of radioscopic image
Quality, and avoid human body by unnecessary radiation, it is suitable for promoting the use of；
2) location information of key point of various pieces can intuitively show X-ray techmician in the present invention, avoid due to
The case where X-ray imaging system all parts position can not accurately be adjusted caused by experience is insufficient, multi-angle, multiple spurs are realized from bat
X-ray image is taken the photograph, it is more flexible, it is easy to use；
3) whole system of the invention is linked ray source and ray receiving end by the way of software coupling, is got rid of multiple
Miscellaneous physical structure reduces manufacture, maintenance and management cost；
4) the X-ray imaging systems of no coupled modes is avoided using cumbersome, is not easy to the shortcomings that accurately adjusting module position,
And the problem of bring is not convenient to use in the case of fixed ray source and ray receiving end.
Other beneficial effects of the invention will be described in detail in a specific embodiment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for facilitating the X-ray imaging system for adjusting each component physical alignment in embodiment 1.
Fig. 2 is the perspective diagram for facilitating the X-ray imaging system for adjusting each component physical alignment in embodiment 1.
Fig. 3 is the flow diagram of method in embodiment 11.
Fig. 4 is criss-cross laser pattern and its key point schematic diagram in embodiment 11.
Fig. 5 is ray receiving end and its key point schematic diagram in embodiment 12.
Fig. 6 is human body and its key point schematic diagram in embodiment 12.
Fig. 7 is the schematic diagram of example 1 in embodiment 12.
Fig. 8 is the schematic diagram of example 2 in embodiment 12.
Fig. 9 is the structural schematic diagram of transmission component in embodiment 9.
In figure, 101-X radiographic source, 102- angle measurement unit, 103- light concentrator, 104- laser source, 105- Image Acquisition
Device, 106- range unit, 107- manually adjust bracket, 108- universal regulating mechanism；201- post adjustment mechanism, 202- are hand steered
Bracket, 203- box body, 204- flat panel detector, 205- motor, 206- sliding rail, 207- screw rod, 208- sliding block, 209- slide unit,
210- transition bracket；300- control module；400- display end.
Specific embodiment
With reference to the accompanying drawing and specific embodiment come the present invention is further elaborated.It should be noted that for
Although the explanation of these way of example is to be used to help understand the present invention, but and do not constitute a limitation of the invention.The present invention
Disclosed function detail is only used for description example embodiments of the present invention.However, this hair can be embodied with many alternative forms
It is bright, and be not construed as limiting the invention in the embodiment that the present invention illustrates.
It should be appreciated that terminology used in the present invention is only used for description specific embodiment, it is not intended to limit of the invention show
Example embodiment.If term " includes ", " including ", "comprising" and/or " containing " are in the present invention by use, specified institute's sound
Bright feature, integer, step, operation, unit and/or component existence, and be not excluded for one or more other features, number
Amount, step, operation, unit, component and/or their combination existence or increase.
It should be appreciated that it will be further noted that the function action occurred may go out with attached drawing in some alternative embodiments
Existing sequence is different.For example, depending on related function action, can actually substantially be executed concurrently, or sometimes
Two figures continuously shown can be executed in reverse order.
It should be appreciated that providing specific details, in the following description in order to which example embodiment is understood completely.
However, those of ordinary skill in the art are it is to be understood that implementation example embodiment without these specific details.
Such as system can be shown in block diagrams, to avoid with unnecessary details come so that example is unclear.In other instances, may be used
Or not show well-known process, structure and technology unnecessary details, to avoid making example embodiment unclear.
Embodiment 1
As shown in Figs. 1-2, a kind of to facilitate the X-ray imaging system for adjusting each component physical alignment, including ray source, ray
Receiving end, universal regulating mechanism and post adjustment mechanism, further include respectively with ray source, ray receiving end, universal adjustment machine
Structure and the control module of post adjustment institutional communication connection；
Ray source, for obtaining nature light image, range information and angle information, and for issuing X-ray and laser
Pattern；
Ray receiving end, for receiving the X-ray of ray source sending and exporting X-ray image；
Universal regulating mechanism for adjusting radiographic source end spaces position, and adjusts the X-ray and ray of ray source sending
Angle between receiving end；
Post adjustment mechanism, for adjusting the height of ray receiving end；
Control module, for receiving the height for calculating ray receiving end after nature light image, range information and angle information
The angle information of information, the location information of ray source and ray source, then according to the elevation information of ray receiving end, ray
The location information of source and the angle information control universal regulating mechanism of ray source and the start and stop of post adjustment mechanism.
In the present embodiment, laser pattern is projected in human body surface using ray source using ray source, is then obtained
Natural light image is provided fundamental basis for the positional information calculation of each component, be can be obtained in conjunction with range information and angle information
The position and posture of ray source central point, human body central point, ray receiving end central point in actual three-dimensional space, after being
The continuous position adjustment for carrying out each component provides theoretical foundation；Meanwhile by the setting of universal regulating mechanism and post adjustment mechanism,
Avoid error caused by manual adjustment.
Embodiment 2
The present embodiment is the further improvement made on the basis of embodiment 1, and the difference of the present embodiment and embodiment 1 exists
In:
In the present embodiment, it is as described in the examples facilitate the X-ray imaging system for adjusting the alignment of each component physical further include with
The display end of control module communication connection；Display end is for showing that nature light image, range information, angle information, ray receive
The angle information of the elevation information at end, the location information of ray source and/or ray source.
Embodiment 3
The present embodiment is the further improvement made on the basis of embodiment 2, and the difference of the present embodiment and embodiment 2 exists
In:
In the present embodiment, ray source includes shell, further includes being embedded on shell and the consistent laser in light field region
Source and x-ray source further include being embedded on shell and filling respectively with the image collecting device of control module communication connection, ranging
It sets and angle measurement unit；Image collecting device is for obtaining nature light image, and range unit is for obtaining multiple preset references
The distance between point information；Angle measurement unit is used to obtain the operation angle of laser source and x-ray source, wherein operation angle
Including X deflection angle and vertical pitch angle.It is arrived by the angle and ray source that obtain nature radiograph, ray source
The distance of body surface in space, it can be deduced that the central point at position to be detected, the central point of ray receiving end, ray source
The angle of central point and ray source；Utilize the central point at position to be detected, the central point of ray receiving end, ray source
The angle of central point and ray source can instruct the corresponding component in X-ray imaging system to do out position adjustment and angle tune
It is whole, it avoids X-ray techmician and manually adjusts cumbersome caused by position and there are problems that error.
It should be noted that laser source is for issuing laser pattern, laser pattern can be arbitrary shape；Light field is X
Region on radiation exposure to human body, in the present embodiment, light field is rectangular-shaped.
Embodiment 4
The further improvement that the present embodiment is made on the basis of embodiment 1-3 is any, the present embodiment and embodiment 1-3 appoint
One difference is:
In the present embodiment, ray source further includes the light concentrator for being set to the opening of shell；Light concentrator is sharp for controlling
The light field region of light source and x-ray source；Light concentrator and control module communicate to connect.
Embodiment 5
The present embodiment is the further improvement made on the basis of embodiment 4, and the difference of the present embodiment and embodiment 4 exists
In:
In the present embodiment, ray source further includes the high pressure generation for communicating to connect with control module and connecting with x-ray source
Device；High pressure generator is used to provide operating voltage for x-ray source.
As one of preferred embodiment, ray source further includes being set on shell to manually adjust bracket；
Bracket is manually adjusted for manually adjusting the spatial position of shell.
Embodiment 6
The present embodiment is the further improvement made on the basis of embodiment 1-5 is any, the present embodiment and embodiment 1-5
Any difference is:
In the present embodiment, control module is also used to detect human body key point, laser pattern key point in nature light image
And ray receiving end key point, and calculate in the central point at position to be detected, the central point of X-ray source and ray receiving end
Heart point.
Embodiment 7
The present embodiment is the further improvement made on the basis of embodiment 1-6 is any, the present embodiment and embodiment 1-6
Any difference is:
In the present embodiment, ray receiving end includes that flat panel detector and package are set to box body on the outside of flat panel detector；
The bottom of box body is fixedly connected with post adjustment mechanism；2 or more key points are preset on box body；Ray receiving end key point is
2 or more box body key points；Wherein, box body package is set to the surrounding and back side of flat panel detector.
Embodiment 8
The present embodiment is the further improvement made on the basis of embodiment 7, and the difference of the present embodiment and embodiment 7 exists
In:
In the present embodiment, ray receiving end further includes hand steered bracket；It is spare that 2 or more brackets are provided on hand steered bracket
Key point；When box body key point is not detected in natural light image, using the spare key point of bracket as ray receiving end key
Point.
Embodiment 9
The present embodiment is the further improvement made on the basis of embodiment 1-8 is any, the present embodiment and embodiment 1-8
Any difference is:
In the present embodiment, post adjustment mechanism includes upright bar, motor and the transmission group being coupled with the output end of motor
Part；The bottom of box body is fixedly connected with transmission component；Motor and control module communicate to connect.
As one of preferred embodiment, as shown in figure 9, transmission component includes actuator, sliding rail, screw rod, cunning
Block and slide unit；Sliding rail has 2, is all set in upright bar, and 2 sliding rails are arranged in parallel in the two sides of screw rod respectively；2 sliding rails
The upper sliding block for being slidably fitted with 1 or more respectively, sliding block are fixedly connected with slide unit；Actuator is connected to the inner top surface of upright bar, drives
Moving part includes the driving circuit being electrically connected with motor, and the output end of motor is fixedly connected with the upper end of screw rod；The lower end of screw rod with
The inner bottom surface of upright bar；Thread barrel is threaded on screw rod, thread barrel is fixedly connected with slide unit；The lower end of screw rod and upright bar inner wall
Or inner bottom surface is flexibly connected by bearing；The bottom of box body is fixedly connected with slide unit；Driving circuit is received from control module
Start stop signal after, control motor start and stop；When motor operation, screw rod rotation is driven, screw rod drives thread barrel moving up and down,
Thus the height adjustment of ray receiving end can be realized.
Alternatively preferred embodiment, on the basis of above-mentioned transmission component, as shown in figure 9, transmission group
Part further includes transition bracket, transition bracket be used for when the installation hole location of slide unit and the installation hole location of box body not to it is corresponding when and box
The corresponding new installation hole location of the installation hole location of body, transition bracket are set between slide unit and box body.
Embodiment 10
The present embodiment is the further improvement made on the basis of embodiment 1-9 is any, the present embodiment and embodiment 1-9
Any difference is:
In the present embodiment, universal regulating mechanism uses Universal arm；Range unit uses laser range finder or binocular camera；Angle
It spends measuring device and uses gyroscope.
Embodiment 11
As shown in figure 3, the present embodiment, which on the basis of embodiment 1-10, provides a kind of facilitate, adjusts each component physical alignment
X-ray imaging system working method, i.e., the method for each component physical alignment, specifically includes in a kind of adjustment X-ray imaging system
Following steps:
Obtain the location information to be detected and pendulum position information of current human body to be detected；
Preset laser pattern is projected to current human body to be detected, and obtaining includes current human body to be detected, laser figure
Then the natural light image of sample and flat panel detector detects the human body key point information obtained in current natural light image, laser
Pattern key point information and ray receiving end key point information；Wherein, preset laser pattern can be any shape, such as scheme
Cross shown in 3.
Current location information to be detected and the corresponding reference point information of pendulum position information are obtained, and obtains current reference point information
The distance between corresponding multiple reference points information；
According to current human's key point information, laser pattern key point information, ray receiving end key point information, worked as
The central point information of the central point information at preceding position to be detected, the central point information of X-ray source and ray receiving end, and obtain
The spatial positional information of position central point to be detected, the spatial positional information of X-ray source central point and ray receiving end center
The spatial positional information of point；Wherein, human body key point information, laser pattern key point information, ray receiving end key point information
It is presupposed information；As shown in figure 4, number 1-5 is laser key point in figure when laser pattern is cross.
According to the spatial positional information of position central point to be detected, spatial positional information, the ray of X-ray source central point
Spatial positional information, reference point information and the range information of receiving end central point information, so that the central point of ray receiving end, X
The central point of ray source and the central point three point on a straight line at position to be detected.
Embodiment 12
The present embodiment is the further improvement made on the basis of implementing 11, and the difference of the present embodiment and embodiment 11 exists
In:
In the present embodiment, spatial positional information includes elevation information and horizontal position information.
In the present embodiment, so that the center at the central point of the central point of ray receiving end, X-ray source and position to be detected
After point three point on a straight line, in the height of the central point of ray receiving end, the height of the central point of X-ray source and position to be detected
The height of heart point is all the same, and 3 points are in same horizontal line.
In the present embodiment, ray receiving end includes flat panel detector and the box body around flat panel detector setting；On box body
2 are provided with upper cartridge body key point；The box body key point that ray receiving end key point is 2 or more.
In the present embodiment, ray receiving end further includes hand steered bracket；It is spare that 2 or more brackets are provided on hand steered bracket
Key point；When box body key point is not detected in natural light image, using the spare key point of bracket as ray receiving end key
Point；As shown in figure 5, number 1-15 is ray receiving end key point in figure when ray receiving end includes armrest support；Its
In, ray receiving end key point includes the central point totally 9 on four vertex of box body, the midpoint on four side of box body and flat panel detector
A key point further includes 6 key points on the armrest support of two sides.
In the present embodiment, human body key point information includes position key point information and joint key point information；Wherein, human body
Key point information is obtained by critical point detection algorithm.It should be noted that the phase of each human body key point and human body
Joint or position is answered to have specific corresponding relationship；Human body key point can with but be not limited only to include head, neck, left and right shoulder joint
Section, left and right elbow joint, left and right wrist joint, left and right hip joint, left and right knee joint, left and right ankle-joint, face and each joint of finger
Deng, such as shown in Fig. 6, human body key point is at totally 14；Digital 1-14 in Fig. 6 is followed successively by head, neck, left and right shoulder joint, left and right
Elbow joint, left and right wrist joint, left and right hip joint, left and right knee joint and left and right ankle-joint, above-mentioned 14 joints be current X-ray at
The most common human body key point as in.
As one of preferred embodiment, the torso portion (such as thoracic cavity, lumbar vertebrae) of human body is shot using high score
Resolution network model HRNet (Deep High-Resolution Representation Learning for Human Pose
Estimation) human body attitude algorithm for estimating is realized.
Alternatively preferred embodiment shoots the hand (finger, wrist joint etc.) of human body using 2D/3D gesture
Key point algorithm (Hand Keypoint Detection in Single Images using Multiview
Bootstrapping it) realizes.
Alternatively preferred embodiment when using HRNet algorithm, modifies algorithm structure, makes its output simultaneously
The natural light image of key point comprising human body key point and laser pattern.
In the present embodiment, the spatial positional information of current position central point to be detected, the sky of X-ray source central point are obtained
Between after the spatial positional information of location information and ray receiving end central point, by the space bit confidence of position central point to be detected
The spatial positional information of breath, the spatial positional information of X-ray source central point and ray receiving end central point includes exporting to aobvious
Show end, and the natural light image including human body key point, laser pattern key point and ray receiving end key point is exported to aobvious
Show end.
In embodiment 11 and embodiment 12, by combining each key point information in range information and natural light image, obtain
The positional relationship of ray source central point, human body position central point to be detected and ray receiving end central point into real space,
Position adjustment accurately is carried out to component each in X-ray imaging system, realizes the physical alignment between each component, eliminates X-ray skill
Teacher adjusts each component locations bring error after judging using naked eyes, improve radioscopic image at tablet quality, and avoid human body
By unnecessary radiation；Meanwhile in the present embodiment, the physical alignment process of each component is more accurate reasonable, the X-ray of generation
Can present well in image to the effective region of diagnosis, x-ray imaging quality is higher, further examines convenient for subsequent
It is disconnected.
It illustrates in embodiment 11 and embodiment 12 and how to realize the adjustment that each component physical is aligned, as follows:
Example 1:
In addition to human body key point, the special key point that uses in example 1 is 14 total, including laser pattern key point and
Ray receiving end key point shoots the scene of x-ray image for human body as shown in fig. 7, human body is stood before ray receiving end, to working as
Preceding human body carries out natural light Image Acquisition, and the laser source installed inside ray source is projected out criss-cross laser in human body surface
Pattern, it is assumed that rectangle ABCD is the box body of ray receiving end, and O is camera lens optical center, and the surface of human body is in same plane α
On, and rectangle HIJK is rectangle ABCD in the central projection centered on O of α plane, M, N, E are respectively line segment AD, BC, MN
Midpoint, the crosspoint of laser pattern are point S, also the subpoint for point O on plane α, i.e. line segment OS ⊥ plane α, and R is line segment OS
With the intersection point of the extended line of line segment MN, human body position center to be detected is denoted as point T, T on line segment PS, and point F is line segment OE and puts down
The intersection point of face α, in positional relationship shown in Fig. 7, the central point E of the corresponding rectangle ABCD of the box body of ray receiving end is by human body
It blocks, and the midpoint M of edge line segment AD is not blocked by human body, in order to determine ray receiving end central point E, human body position to be detected
Central point T and ray source central point O calculate separately the length of line segment ER and line segment ST, if line segment whether on sustained height
ER, line segment ST length be less than preset length, then it is assumed that ray receiving end center, human body position center to be detected, radiographic source
End center is in sustained height, if three parts center is in sustained height, point E is overlapped with point R, and point T is overlapped with point S, i.e. point
E, T, O three point on a straight line.
Obtain range information device be mounted on the position of point O, it is possible thereby to obtain point O to any body surface distance
(except the part being blocked, such as in Fig. 7, the length of line segment OE Yu line segment ON can not be measured, line segment OF and line segment can only be measured
The length of OQ), the range information obtained in example 1 includes the length of line segment OM, line segment OS, line segment OF and line segment OQ.
The size of the box body rectangle ABCD of ray receiving end it is known that i.e. line segment AB and line segment BC length it is known that natural light figure
The plane of picture imaging is plane α, i.e. picture in actual range and natural light image in plane α between each point between respective point
Element is apart from proportional.
It can also be calculated while calculating human body key point in example 1 using the human body critical point detection algorithm after optimization
The position of flat panel detector box central point and laser pattern central point in natural light image determines point F and point S in natural light
Position in image.
Since the length of line segment OF and line segment OS according to Pythagorean theorem it is known that can obtain:
NoteFor the length (unit is pixel number) of line segment FS in the picture, due to the reality of point-to-point transmission in α plane
Pixel distance in distance and natural light image is proportional, then can obtain:
The angle of ∠ POS are as follows:
Due to line segment OM length it is known that the length of event line segment MR are as follows:
By the above-mentioned length that can obtain line segment MR are as follows:
Since the length of line segment AB is it is known that event can be obtained according to the length of line segment MR:
Difference in height of the central point of ray receiving end in real space is the length of line segment ER, i.e., are as follows:
The difference in height of human body central point T in position to be detected and the central point O of ray source are the length of line segment ST, i.e., are as follows:
In conclusion when ray receiving end moves to arbitrary height, ray receiving end central point, human body position to be detected
Central point, laser pattern central point position in three dimensions and difference in height can be obtained by nature light image and range information
Out, when above-mentioned difference in height ER, ST is less than threshold value, then it is assumed that three member center points are in sustained height, thus realize
The adjustment of the physical alignment of three components.
Example 2:
When vertical up-or-down movement is done in ray receiving end, the edge mid-points of upper and lower box body are likely to be blocked, such as Fig. 8 institute
Show, current human is huge, has blocked box body left and right edges, then can replace box body with the spare key point of the bracket on hand steered bracket
Left and right side midpoint box body key point, three parts central point is calculated according to the endpoint of the midpoint of left and right side or hand steered bracket
Difference in height uses the spare key point of bracket；Point M and point N are respectively hand steered bracket left end endpoint and right end endpoint, rather than
Midpoint on the right of box portion left；At this point, the line segment of the physical length obtained by range information includes line segment OM, line segment OS and line segment
OF, and known to the equal size of box body and hand steered bracket；
According to Pythagorean theorem, the distance of ray receiving end central point E to image center point O is the length of line segment OE, specifically
Are as follows:
Similarly, the length of line segment FS are as follows:
Due to △ OER △ OSF, can obtain:
By above-mentioned 3 formula, can obtain:
Difference in height of the ray receiving end central point in real space is the length of line segment ER, i.e., are as follows:
Since the pixel distance in α plane in the actual range and image of point-to-point transmission is proportional, then:
Difference in height by the above-mentioned central point O that can obtain human body central point T in position to be detected and ray source is line segment ST
Length, i.e., are as follows:
In conclusion when ray receiving end moves to arbitrary height, ray receiving end central point, human body position to be detected
Central point, laser pattern central point position in three dimensions and difference in height can be obtained by nature light image and range information
Out, when above-mentioned difference in height ER, ST is less than threshold value, then it is assumed that three member center points are in sustained height, thus realize
The adjustment of the physical alignment of three components.
Embodiments described above is only schematical, can if being related to unit as illustrated by the separation member
It is physically separated with being or may not be；If being related to component shown as a unit, can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
Need that some or all of the units may be selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not
In the case where paying creative labor, it can understand and implement.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific embodiment should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (10)
1. a kind of facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: connect including ray source, ray
Receiving end, universal regulating mechanism and post adjustment mechanism, further include respectively with ray source, ray receiving end, universal regulating mechanism
And the control module of post adjustment institutional communication connection；
Ray source, for obtaining nature light image, range information and angle information, and for issuing X-ray and laser pattern；
Ray receiving end, for receiving the X-ray of ray source sending and exporting X-ray image；
Universal regulating mechanism for adjusting radiographic source end spaces position, and adjusts the X-ray and ray reception of ray source sending
Angle between end；
Post adjustment mechanism, for adjusting the height of ray receiving end；
Control module, for receive calculate after nature light image, range information and angle information ray receiving end elevation information,
The location information of ray source and the angle information of ray source, then according to the elevation information of ray receiving end, ray source
Location information and ray source angle information control universal regulating mechanism and post adjustment mechanism start and stop.
2. according to claim 1 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: also wrap
Include the display end with control module communication connection；The display end is for showing nature light image, range information, angle letter
The angle information of breath, the elevation information of ray receiving end, the location information of ray source and/or ray source.
3. according to claim 2 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: described
Ray source include shell, further include being embedded on shell and the consistent laser source in light field region and x-ray source, further include
Image collecting device, range unit and the angle measurement unit for being embedded on shell and being communicated to connect respectively with control module；
The image collecting device is for obtaining nature light image, and the range unit is for obtaining between multiple preset reference points
Range information；The angle measurement unit is used to obtain the operation angle of laser source and x-ray source.
4. according to claim 3 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: described
Ray source further include the light concentrator for being set to the opening of shell；The light concentrator is for controlling laser source and X-ray
The light field region in source；The light concentrator and control module communicates to connect.
5. according to claim 4 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: described
Ray source further include being communicated to connect with control module and the high pressure generator that is connect with x-ray source；The high pressure occurs
Device is used to provide operating voltage for x-ray source.
6. according to claim 5 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: described
Control module to be also used to detect human body key point in nature light image, laser pattern key point and ray receiving end crucial
Point, and calculate the central point of the central point at position to be detected, the central point of X-ray source and ray receiving end.
7. according to claim 6 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: described
Ray receiving end include that flat panel detector and package are set to box body on the outside of flat panel detector；The bottom of the box body with
Post adjustment mechanism is fixedly connected；2 or more key points are preset on the box body；The ray receiving end key point is
2 or more box body key points.
8. according to claim 7 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: described
Ray receiving end further include hand steered bracket；2 or more the spare key points of bracket are provided on the hand steered bracket；When certainly
When box body key point is not detected in right light image, using the spare key point of bracket as ray receiving end key point.
9. according to claim 8 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: described
Post adjustment mechanism include upright bar, motor and the transmission component being coupled with the output end of motor；The bottom of the box body
Portion is fixedly connected with transmission component；The motor and control module communicates to connect.
10. according to claim 9 facilitate the X-ray imaging system for adjusting each component physical alignment, it is characterised in that: described
Universal regulating mechanism use Universal arm；The range unit uses laser range finder or binocular camera；The angle is surveyed
It measures device and uses gyroscope.
Priority Applications (5)
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| CN201910750489.7A CN110301925B (en) | 2019-08-14 | 2019-08-14 | X-ray imaging system convenient for adjusting physical alignment of all parts |
| AU2020255687A AU2020255687A1 (en) | 2019-04-02 | 2020-04-02 | An integrated X-ray precision imaging device |
| PCT/CA2020/050438 WO2020198870A1 (en) | 2019-04-02 | 2020-04-02 | An integrated x-ray precision imaging device |
| CA3135998A CA3135998A1 (en) | 2019-04-02 | 2020-04-02 | An integrated x-ray precision imaging device |
| US17/268,949 US20220079544A1 (en) | 2019-04-02 | 2020-04-02 | An integrated x-ray precision imaging device |
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