CN106473760A

CN106473760A - X-ray imaging equipment and its control method

Info

Publication number: CN106473760A
Application number: CN201610728357.0A
Authority: CN
Inventors: 李镐俊; 裴斤泰; 金主焕; 金成南
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2015-08-25
Filing date: 2016-08-25
Publication date: 2017-03-08
Also published as: KR102662639B1; KR20170024560A

Abstract

A kind of x-ray imaging equipment and its control method, the x-ray imaging equipment are arranged the various types of parameters related to x-ray imaging including X-ray radiation region and automatically control x-ray imaging using camera image.A kind of x-ray imaging equipment includes：Capturing unit, captures camera image；X-ray source, is provided with the collimator for adjusting X-ray radiation region on the x-ray source；Memory cell, maps and stores x-ray imaging region for each in multiple x-ray imaging agreements；Input block, receives the selection to an x-ray imaging agreement in the plurality of x-ray imaging agreement；Control unit, is extracted the x-ray imaging region for being set up mapping with selected x-ray imaging agreement, and controls collimator to cause X-ray radiation region corresponding to the x-ray imaging region that extracts from camera image.

Description

X-ray imaging equipment and its control method

This application claims the numbering for being submitted to Korean Intellectual Property Office on 25th respectively at August in 2015 is 10-2015- 0119877th, the numbering that August in 2015 is submitted on the 25th be 10-2015-0119879, the numbering of the submission on the 26th of August in 2015 be 10- The numbering of 2015-0120578 and 2015 on August submission in 26, is the preferential of the korean patent application of 10-2015-0120577 Power.The disclosure of all above applications is hereby incorporated.

Technical field

Embodiment of the disclosure is related to x-ray imaging equipment and its control method.

Background technology

X-ray imaging equipment is with X-ray radiation object and to analyze the X-ray for having been transmitted through object with identification object The equipment of portion's structure.As X-ray transmission rate changes according to the tissue of object is formed, therefore can (i.e. X be penetrated using attenuation coefficient The numerical value of line transmissivity) by object imaging inside structure.

As X-ray radiation region can be adjusted using collimator, therefore x-ray imaging part, object should considered Feature etc. in the case of X-ray radiation region is set exactly, to prevent object to be unnecessarily exposed to X-ray and need not Strategic point is by X-ray radiation.

In some cases, as a variety of causes (is penetrated including the X-ray radiation region situation less than part to be imaged and X The line region to be detected situation less than part to be imaged), cause to be imaged to shoot what expectation was imaged completely by single Part.

In these cases, the plurality of area can be shot by X-ray by part to be imaged is divided into multiple regions Each region in domain and acquired multiple radioscopic images are stitched together, obtain an X-ray of desired part Image.

Content of the invention

Therefore, the one side of the disclosure is to provide a kind of x-ray imaging equipment and its control method, and the x-ray imaging sets The standby various types of parameters related to x-ray imaging arranged using camera image including X-ray radiation region, and from Dynamic control x-ray imaging.

The another aspect of the disclosure partly will be illustrated in the description that follows, and partly will be aobvious and easy according to description See or can be known by putting into practice the disclosure.

According to embodiment, a kind of x-ray imaging equipment includes：Capturing unit, captures camera image；X-ray source, in the X The collimator for adjusting X-ray radiation region is installed on radiographic source；Memory cell, for every in multiple x-ray imaging agreements Individual mapping simultaneously stores x-ray imaging region；Input block, receives to become an X-ray in the plurality of x-ray imaging agreement Selection as agreement；And control unit, extract the X for mapping being set up with selected x-ray imaging agreement from camera image penetrate Line imaging region, and control collimator so that X-ray radiation region is corresponding to extracted x-ray imaging region.

Input block can be received and each the x-ray imaging agreement being directed in the plurality of x-ray imaging agreement from user The related selection in the x-ray imaging region of mapping.

X-ray imaging equipment may also include display unit, and display unit shows with object shapes to be penetrated with X for receiving The Drawing Object of the related selection in line imaging region, and by the imaging window in specified x-ray imaging region is overlapped figure Show imaging window on shape object.

When at least one of positions and dimensions of imaging window are adjusted by input block, control unit can by with tune It is single that the corresponding region of at least one of positions and dimensions of imaging window after section is stored in storage as x-ray imaging region In unit.

X-ray imaging equipment may also include display unit, and display unit shows camera image, and the X by extracting The x-ray imaging region that radial imaging region overlaps on camera image to show extraction.

Display unit can show for receiving to an x-ray imaging agreement in the plurality of x-ray imaging agreement The protocol list of selection, and show camera image when camera image display command is transfused to by input block.

Input block can receive the X-ray radiation condition arranged for each in the plurality of x-ray imaging agreement, deposit Storage unit can map and store the X-ray radiation condition for each setting in the plurality of x-ray imaging agreement.

When in the plurality of x-ray imaging agreement is selected, control unit can be by application and selected X Radial imaging agreement sets up the X-ray radiation condition of mapping executing x-ray imaging.

According to another embodiment, a kind of x-ray imaging equipment includes：Display unit, shows for receiving for multiple The graphic user interface (GUI) of the setting of the X-ray radiation condition of each in object size；Memory cell, according to input, pin X-ray radiation condition is mapped and is stored to each in multiple object size；Capturing unit, captures camera image；And control Unit, recognizes the size of the object illustrated in camera image, and the X by application with the object size foundation mapping of identification is penetrated Beta radiation condition is executing x-ray imaging.

Display unit can show the object size of identification.

Memory cell can map and store X for each in multiple object size and each in x-ray imaging agreement Ray radiation condition.

When in the plurality of x-ray imaging agreement is selected, control unit can be by application and selected X The object size of radial imaging agreement and identification sets up the X-ray radiation condition of mapping executing x-ray imaging.

According to another embodiment, a kind of x-ray imaging equipment includes：Capturing unit, captures camera image；X-ray source, The light source being provided with the x-ray source with luminous ray radiation X ray radiation areas；Control unit, the seat based on x-ray source Mark information extracts, to calculate the position in the X-ray radiation region in camera image, being shone by luminous ray of showing in camera image The light radiation region that penetrates, calculates position of the light radiation region in camera image that extracts, when X-ray radiation region position and Determine when the position of light radiation region mismatches each other that needs are calibrated；And display unit, aobvious when needing to be calibrated Show the information related to calibration.

Display unit can show first X-ray radiation window corresponding with the position in the X-ray radiation region for calculating and Second X-ray radiation window corresponding with the position of the light radiation region for calculating.

At least one of position, form and size when the first X-ray radiation window and the second X-ray radiation window that When this mismatches, control unit can determine that needs are calibrated.

When needing to be calibrated, control unit can based on the first X-ray radiation window and the second X-ray radiation window it Between difference calculating calibration parameter.

Display unit can show the calibration parameter for calculating.

Control unit can execute calibration automatically based on the calibration parameter for calculating.

Control unit can extract the X-ray detector for illustrating or the peace for being provided with X-ray detector thereon in camera image The border of unit is filled so that detector boundary line is extracted, and can be based on the position in the X-ray radiation region for calculating or calculating The X-ray radiation window shown at the position of the light radiation region for going out and the detector boundary line that extracts, determine X-ray detector Whether aligned with each other with x-ray source.

When the distance between the multiple summits for forming X-ray radiation window and the multiple summits for forming detector boundary line are complete When matching each other entirely, control unit can determine that X-ray detector and x-ray source aligned with each other.

When the center of X-ray radiation window and the center of detector boundary line match each other, control unit can determine that X is penetrated Thread detector and x-ray source aligned with each other.

Display unit can show detection by overlapping detector boundary line and ray radiation window on camera image Device boundary line and ray radiation window.

Control unit can be calculated for detecting x-ray source aligned with each other to x-ray source and X-ray detector or X-ray The displacement of device or moving direction.

Control unit can be based on the displacement for calculating or moving direction come mobile x-ray source or X-ray detector.

Display unit can show the displacement or moving direction for calculating.

Display unit can show at the position of the position in the X-ray radiation region for calculating or the light radiation region for calculating Show X-ray radiation window, and x-ray imaging equipment may also include input block, input block is received for adjusting X from user The position of ray radiation window or the regulating command of size.

When the regulating command due to being input into causes X-ray radiation window to deviate the X-ray detector illustrated in camera image Or the installation unit for being provided with X-ray detector thereon border when, display unit can show deviate border region.

According to another embodiment, a kind of x-ray imaging equipment, the x-ray imaging equipment pass through multiple dividing regions Multiple radioscopic images in domain are stitched together to produce single radioscopic image, the x-ray imaging equipment includes：Capturing unit, Obtain camera image；X-ray source, is provided with the collimator for adjusting X-ray radiation region on the x-ray source；Display unit, passes through Multiple partition windows are overlapped on camera image to show the plurality of partition window, the plurality of partition window represents described The size of multiple zonings and position；And control unit, control collimator, with adjust in the plurality of zoning to The width in few one X-ray radiation region.

X-ray imaging equipment may also include the input block received for controlling the order of the width in X-ray radiation region, And control unit can control collimator according to the order of input.

Control unit can control collimator so that the object illustrated in the width matching camera image in X-ray radiation region Width.

Control unit can be from the profile of camera image extracting object and based on the border between the profile for extracting and background To determine the width in X-ray radiation region.

X-ray imaging equipment may also include multiple auto-exposure controls (AEC) sensor, and AEC sensor controls from X-ray The amount of the X-ray of source radiation, and control unit can be the plurality of to select based on the width in the X-ray radiation region after regulation One in AEC sensor.

According to another embodiment, a kind of x-ray imaging equipment passes through to spell multiple radioscopic images of multiple zonings It is connected together to produce single radioscopic image, and including：Capturing unit, captures camera image；Display unit, shows camera Image；And control unit, determine whether the overlapping region that the plurality of zoning and camera image are overlapped is in the portion of presetting Point.

Control unit may move overlapping region so that overlapping region is not at predetermined fraction.

Display unit can show overlapping region by overlapping overlapping region on camera image, and work as overlapping region In predetermined fraction when can to user output warning.

X-ray imaging equipment may also include input block, and input block receives the user command for moving overlapping region.

According to embodiment, a kind of method of control x-ray imaging equipment includes：For in multiple x-ray imaging agreements Each, maps and stores x-ray imaging region；Receive the x-ray imaging selected from the plurality of x-ray imaging agreement Agreement；Extract the x-ray imaging region that mapping is set up with selected x-ray imaging agreement from camera image；And control is accurate Straight instrument so that X-ray radiation region corresponds to extracted x-ray imaging region.

Map and store x-ray imaging region may include：Receive from user and be directed in the plurality of x-ray imaging agreement Each mapping the related selection in x-ray imaging region；And according to input, in the plurality of x-ray imaging agreement Each map and store x-ray imaging region.

According to another embodiment, a kind of method of control x-ray imaging equipment includes：Show for receiving for multiple The GUI of the setting of the X-ray radiation condition of each in object size；According to input, for each in multiple object size, Map and store X-ray radiation condition；Capture camera image；The size of the object illustrated in identification camera image, and pass through Apply the X-ray radiation condition mapped with the object size foundation for recognizing to execute x-ray imaging.

Methods described may also include the object size for showing identification.

According to another embodiment, a kind of method of control x-ray imaging equipment includes：Use luminous ray radiation X ray Radiation areas；Coordinate information based on x-ray source extracts camera calculating the position in the X-ray radiation region in camera image The light radiation region that is irradiated by luminous ray shown in image, calculates position of the light radiation region that extracts in camera image Put, and when the position of the position when X-ray radiation region and light radiation region mismatches each other, determine that needs are calibrated； And show the information related to calibration when needing to be calibrated.

Methods described may also include：Extract in camera image the X-ray detector that illustrates or X-ray detection is installed thereon The border of the installation unit of device to extract detector boundary line, and the position based on the X-ray radiation region for calculating or The X-ray radiation window shown at the position of the light radiation region for calculating and the detector boundary line that extracts, determine that X-ray is examined Survey device and whether x-ray source is aligned with each other.

Methods described may also include：In the position in the X-ray radiation region for calculating or the light radiation region for calculating Show X-ray radiation window at position, and receive for adjusting the position of X-ray radiation window or the regulation of size from user Order.

When the regulating command due to being input into, X-ray radiation window is caused to deviate the X-ray detector illustrated in camera image Or the installation unit for being provided with X-ray detector thereon border when, methods described may also include show deviate border region.

According to another embodiment, a kind of method of control x-ray imaging equipment includes：Capture camera image；By inciting somebody to action Multiple partition windows overlap on camera image to show the plurality of partition window, and the plurality of partition window represents described many The size of individual zoning and position；And control collimator, penetrated with the X that adjusts at least one of the plurality of zoning The width in beta radiation region.

Methods described may also include the input block received for controlling the order of the width in X-ray radiation region, and Control collimater may include that basis inputs a command for controlling collimator.

Control collimator may include：Control collimater so that illustrate in the width matching camera image in X-ray radiation region Object width.

Methods described may also include：Width based on the X-ray radiation region after regulation is directed to the plurality of zoning In each select at least one of multiple AEC sensors.

According to another embodiment, a kind of method of control x-ray imaging equipment includes：Capture camera image；Show phase Machine image；By wherein the multiple zonings for executing joining image-forming overlapping on camera image shown the plurality of stroke Subregion；And determine whether the overlapping region that the plurality of zoning and camera image are overlapped is in predetermined fraction.

Methods described may also include：When overlapping region is in predetermined fraction, mobile overlapping region.

Description of the drawings

The disclosure these and/or other in terms of by according to being made apparent to the description of embodiment below in conjunction with accompanying drawing and It is easier to understand, wherein：

Fig. 1 is the control block diagram of the x-ray imaging equipment according to embodiment；

Fig. 2A is the external view of the construction for illustrating the x-ray imaging equipment according to embodiment；

Fig. 2 B is the external view for illustrating the sub- display device on x-ray source；

Fig. 3 A is the view of the construction for illustrating collimator；

Fig. 3 B is the transverse sectional view of the blade intercepted along the A-A' line in Fig. 3 A；

Fig. 4 illustrates the x-ray source from forward observation；

Fig. 5 A and Fig. 5 B are all to illustrate the auto-exposure control (AEC) that can be used for the x-ray imaging equipment according to embodiment The view of the example of sensor；

Fig. 6 and Fig. 7 are all to be shown in the picture example that show on the display unit according to the x-ray imaging equipment of embodiment View；

Fig. 8 A is to illustrate the conceptual view just from the light in the expression X-ray radiation region of X-ray source radiation；

Fig. 8 B is to illustrate that the camera image for showing on the display unit includes the view of the example of light radiation region；

Fig. 9 is the view for illustrating the example for showing X-ray radiation window based on light radiation region；

Figure 10 is the X-ray radiation window for being shown with coordinate information generation and the X-ray spoke produced by image procossing Penetrate the view of window；

Figure 11, Figure 12, Figure 13, Figure 14 and Figure 15 be illustrate according to the x-ray source of the x-ray imaging equipment of embodiment and The view of X-ray detector method aligned with each other；

Figure 16 is to illustrate that the X-ray radiation window shown on the display unit according to the x-ray imaging equipment of embodiment is inclined View from the example on X-ray detector border；

Figure 17, Figure 18 and Figure 19 are the views for illustrating the example for presetting imaging region according to imaging protocol；

Figure 20 is the view for illustrating storage information in the memory unit；

Figure 21 is the view of the process for illustrating the imaging region for corresponding to imaging protocol from the image zooming-out of object；

Figure 22 is the view of the camera image for illustrating that extracted imaging region shows wherein；

Figure 23 is the view of the operation for illustrating the default information related to object size；

Figure 24 is the view for illustrating the information related to object size for prestoring；

Figure 25 is to illustrate that each size that can be directed to by which in multiple sizes of object arranges the picture of X-ray radiation condition The view in face；

Figure 26 is the view for illustrating the operation for automatically determining object size based on camera image；

Figure 27 is the view for illustrating the example images being stitched together；

Figure 28 is to illustrate division imaging region to execute the view of the example of joining image-forming；

Figure 29 is the view for illustrating the overlapping region between each in multiple zonings；

Figure 30 and Figure 31 are the views for illustrating the operation for automatically adjusting overlapping region；

Figure 32 and Figure 33 are directly to specify the related view of the situation of splicing regions to user；

Figure 34 A, Figure 34 B, Figure 35 and Figure 36 are to illustrate that permission user is arranged in the x-ray imaging equipment according to embodiment The view of the picture of the width in the X-ray radiation region of each in multiple zonings；

Figure 37 and Figure 38 are to illustrate that permission user selects AEC sensor in the x-ray imaging equipment according to embodiment The view of picture；

Figure 39 A, Figure 39 B and Figure 39 C are and the x-ray source in the x-ray imaging equipment by control according to embodiment Angle of inclination is come the related view of the situation that executes joining image-forming；

Figure 40 is the view of the operation of the movement for being shown with camera image to determine object；

Figure 41 and Figure 42 are to be shown in be partially completed while being divided into picture to stop execution reimaging after joining image-forming In the case of the view that is controlled；

Figure 43 is to illustrate the checking X-ray radiation area in the method for control according to the x-ray imaging equipment of embodiment The flow chart of the example of the method in domain；

Figure 44 is illustrated for by x-ray source and X-ray in method of the control according to the x-ray imaging equipment of embodiment The flow chart of the example of detector method aligned with each other；

Figure 45 is the method with the setting imaging protocol in the method for control according to the x-ray imaging equipment of embodiment Related flow chart；

Figure 46 is and for being determined according to the motion of object in method of the control according to the x-ray imaging equipment of embodiment It seems the related flow chart of the no method for having stopped being divided into；

Figure 47 be with for restarting joining image-forming in method of the control according to the x-ray imaging equipment of embodiment The related flow chart of situation；

Figure 48 is the method with the control overlapping region in the method for control according to the x-ray imaging equipment of embodiment Related flow chart；And

Figure 49 is the method with the default object size in the method for control according to the x-ray imaging equipment of embodiment Related flow chart.

Specific embodiment

Hereinafter, will be described in detail with reference to the accompanying drawings according to one side is related to x-ray imaging equipment and its control method Embodiment.

In the following description, even if in different drawings, identical label is also used for identical element.Limit in the de-scription Fixed item (such as specific construction and element) is provided for helping the comprehensive understanding to exemplary embodiment.However, very It is evident that exemplary embodiment can be implemented in the case of the item without these restrictions.Further, since known function Or construction obscures in unnecessary details description, therefore will not be described.

Fig. 1 is the control block diagram of the x-ray imaging equipment according to embodiment.Fig. 2A is to illustrate the X-ray according to embodiment The external view of the construction of imaging device, Fig. 2 B are the external views for illustrating the sub- display device on x-ray source.Fig. 2A In the outside that illustrates be that the example of x-ray imaging equipment and the roof type X-ray that is connected to inspection chamber roof with x-ray source become As equipment is related.

With reference to Fig. 1, the x-ray imaging equipment 100 according to embodiment includes：X-ray source 110, produces and radiation X ray； Display unit 150 (for example, display, display device, monitor or display screen), show for object size is set picture, For the picture for arranging imaging protocol, the image captured by capturing unit 120 (for example, imaging device, camera etc.), for setting Put picture of X-ray radiation condition etc.；Input block 160, receives control command from user, and wherein, the control command includes For arranging the order of object size, for arranging the order of imaging protocol, for arranging the order of X-ray radiation condition etc.； Memory cell 170, stores information related to object size, imaging protocol and X-ray radiation condition etc.；And control unit 140 (that is, controllers), control the integrated operation of x-ray imaging equipment 100.

In addition, x-ray imaging equipment 100 may also include the communication unit 130 with communication with external apparatus.

Control unit 140 can control the time point from 110 radiation X ray of x-ray source, X to penetrate according to the order of user input Beta radiation condition etc., and medical image can be produced using the data received from X-ray detector 200.

In addition, control unit 140 can also control and be provided with x-ray source thereon according to imaging protocol and the position of object P 110 or the position of installation unit 14 and 24 or the orientation of X-ray detector 200.

Control unit 140 may include memory and processor, wherein, be stored with memory for execute aforesaid operations and The program of operation explained below, the program stored by computing device.Control unit 140 may include a processor or micro- Processor, or including multiple processors or microprocessor.In the case of the latter, multiple processors or microprocessor can be integrated On a single die or can be physically separated from each other.

When control unit 140 includes multiple processors and multiple memories, some in these memories and processor May be provided at work station (180) and remaining memory and processor may be provided at such as sub- display device (80, referring to figure 2A) or in other devices of movable support bracket (40, referring to Fig. 2A).For example, the processor being arranged in work station 180 can perform figure As the control such as process is to produce medical image, the executable and X-ray of the processor in being arranged on sub- display device or movable support bracket Source 110 or the mobile related control of X-ray detector 200.

X-ray imaging equipment 100 can be connected to external device (ED) (for example, external server 310, doctor via communication unit 130 Treatment equipment 320, portable terminal 330 (such as, smart phone, tablet personal computer (PC) and wearable device)) and with Which carries out the transmission of data or reception.

Communication unit 130 may include can be with one or more elements of communication with external apparatus.For example, communication unit 130 may include at least one of short-range communication module, wire communication module and wireless communication module.In addition, communication unit 130 May also include the intercommunication module for making to communicate between x-ray imaging equipment 100.

In addition, communication unit 130 can receive control signal from external device (ED) and the control signal for receiving is sent to control Unit processed 140, to allow control unit 140 to control x-ray imaging equipment 100 according to the control signal for receiving.

In addition, control unit 140 can also pass through to send control signals to external device (ED) via communication unit 130, according to Control signal from control unit 140 is controlling external device (ED).For example, external device (ED) can be according to connecing via communication unit 130 The control signal from control unit 140 that receives is processing the data of external device (ED).As x-ray imaging equipment can be controlled 100 program may be mounted to that in external device (ED) that therefore program may include some or all operations of execution control unit 140 Instruction.

Program can be pre- installed appropriately in portable terminal 330, can also from provide application server download and Installed user program by portable terminal 330.The server for providing application may include to be stored with the recording medium of corresponding program.

With reference to Fig. 2A, can be in the roof upper mounting rail 30 of the inspection chamber residing for x-ray imaging equipment 100, x-ray source 110 may be connected to movable support bracket 40, and movable support bracket 40 is moved along guide rail 30 to move to x-ray source 110 corresponding to object P Position, movable support bracket 40 and x-ray source 110 can connect by pillar frame 50, to adjust the height of x-ray source 110.

As x-ray source 110 automatically or manually can be moved, therefore x-ray imaging equipment 100 may also include such as motor Driver element, driver element provide when x-ray source 110 is automatically moved allow x-ray source 110 move electric power.

Work station 180 is may be provided in the space separated with space residing for x-ray source 110 by cutting means enclosure B.Work station 180 may include to receive the display unit 182 of the input block 181 of order and display information from user.

Input block 181 can be received for controlling imaging protocol, X-ray radiation condition, the time point of radiation X ray, X to penetrate The order of the position of line source 110 etc..Input block 181 may include keyboard, mouse, touch-screen, speech recognition device etc..

Display unit 182 can show for instructing picture, radioscopic image that user is input into, illustrating that x-ray imaging sets Standby 100 picture of state etc..

Meanwhile, the display unit 150 described with reference to Fig. 1 and input block 1600 can be implemented as being arranged on work station respectively Display unit 182 and input block 181 in 180, can also be implemented as the son display being arranged in sub- display device 80 respectively Unit 81 and sub- input block 82, and also can be implemented as being arranged in the mobile device of such as tablet PC and smart phone Display unit and input block.

X-ray detector 200 can be realized by the fixed X-ray detector for being fixed to support 20 or stage body 10, permissible It is removably mounted on installation unit 14 and 24, and also can be by the spendable portable x-ray detector in any position To realize.Can according to the mode for sending data and the mode of supply electric power, by portable x-ray detector be embodied as having line style or Radio-type.

As X-ray detector 200 also automatically or manually can be moved, therefore x-ray imaging equipment 100 may also include all As motor driver element, driver element provides when X-ray detector 200 is automatically moved allow X-ray detector 200 move Electric power.

X-ray detector 200 can be included or can be not included as the element of x-ray imaging equipment 100.In latter In the case of, user can be registered to X-ray detector 200 in x-ray imaging equipment 100.In addition, in both cases, X is penetrated Thread detector 200 can be connected to control unit 140 via communication unit 130, to receive control signal or send view data.

The sub- display device 80 for providing the user information and receiving order from user may be provided at the one of x-ray source 110 Some functions or repertoire in side, and the function of the input block 181 of work station 180 and the execution of display unit 182 can Executed by sub- display device 80.

When the whole elements in the element of control unit 140 and communication unit 130 or some elements and work station 180 separate When ground is arranged, element can be included in the sub- display device 80 being arranged at x-ray source 110.

User by manipulating the sub- input block 82 illustrated in Fig. 2 B or can touch the sub-display 81 illustrated in Fig. 2 B, The input various types of information related to x-ray imaging or order.

For example, user can be input into, by sub- input block 82 and sub-display 81, the position that x-ray source 110 will be moved into reaching Put.

Although Fig. 2A is shown connected to the fixed x-ray imaging equipment on the roof of inspection chamber, but x-ray imaging equipment 100 may include to it would be apparent to one of skill in the art that in the range of the x-ray imaging with various structures set Standby (such as, C arm type x-ray imaging equipment and mobile x-ray imaging equipment).

Meanwhile, x-ray source 110 may include：X-ray tube, produces X-ray；Collimator, regulation will be produced by X-ray tube X-ray radiation region；And capturing unit 120, capture camera image.Hereinafter, with reference to the accompanying drawings this is carried out in detail Description.

Fig. 3 A is the view of the construction for illustrating collimator, and Fig. 3 B is the horizontal of the blade along the A-A' line intercepting in Fig. 3 A Sectional view.

Reference picture 3A, collimator 113 may include one or more removable blades 113a, 113b, 113c and 113d, this The material that one or more blade reasons have high band gap is formed and can absorb X-ray.Can be with this one or more leaf The radiation scope that piece moves to adjust X-ray, collimator 113 may also include each blade in this one or more blade The motor of electric power is provided.

Control unit 140 calculates each in this one or more blade corresponding with the X-ray radiation region for arranging The amount of movement of blade, and the control signal for being used for for this one or more blade movement reaching the amount of movement for calculating is sent To collimator 113.

For example, collimator 113 may include to be respectively provided with four blades 113a, 113b, 113c and 113d of quadrangle form.The One blade 113a and third blade 113c can be moved in the two directions along x-axis, the second blade 113b and quaterfoil 113d Can be moved along y-axis in the two directions.

In addition, each in four blades 113a, 113b, 113c and 113d can be moved respectively, or the first blade 113a Can move together in groups with third blade 113c, the second blade 113b and quaterfoil 113d can be moved in groups together.

Can be by the slot R that formed by four blades come radiation X ray, can be by X-ray be executed standard through slot R Directly.Therefore, in this embodiment, slot R is referred to as collimation areas, and X-ray radiation region representation has already passed through collimation area R's X-ray incides object 1 or the region on X-ray detector 200.

Reference picture 3B, collimator 113 are arranged in the front of X-ray tube 111.Here, towards the side in 111 front of X-ray tube To the radiation direction for representing X-ray.The X-ray radiation region E of the X-ray radiated from the focus 2 of X-ray tube 111 receives collimator 113 limit, and the scattering of X-ray is reduced.

Among the X-ray radiated from X-ray tube 111, the X-ray on blade 113a, 113b, 113c and 113d is incided It is absorbed in blade, the X-ray for having already passed through collimation area R is incided on X-ray detector 200.Here, description it will be assumed not There is object.

When X-ray is scattered with cone-shaped beam form, X-ray radiation region E is more than collimation area R.Can be by control unit 140 By adjusting collimation area R based on the relation between X-ray radiation region E and collimation area R, with X-ray come radiation X ray radiation area The desired scope of domain E.

Although collimator 113 is described as four blades with quadrangle form in the above examples, but this It is the example that can be applicable to x-ray imaging equipment 100, and the quantity of blade that includes of collimator 113 or shape is not limited to This.

Fig. 4 illustrates the x-ray source from forward observation.

With reference to Fig. 4, collimator 113 may be arranged at 110 front of x-ray source, and capturing unit 120 can be built in and collimator In 113 adjacent regions.

Capturing unit 120 can be by being implemented as such as charge-coupled image sensor (CCD) camera and complementary metal oxide The camera of silicon (CMOS) camera is capturing video.Alternatively, capturing unit 120 can also capture static figure by short interval Picture.

While x-ray source 110 captures the radioscopic image of object, capturing unit 120 captures object (for example, target) True picture.In embodiment explained below, the image that x-ray source 110 is captured will be referred to as radioscopic image, capture The image that unit 120 is captured will be referred to as camera image.Capture images may include or may not include object.That is, can Camera image is captured in the case that object 1 is arranged in 200 front of X-ray detector, and also can there is no object 1 Open lower capture camera image.

Capturing unit 120 is may be arranged at the position for the part that can capture X-ray object to be imaged.For example, capture single Unit 120 can be arranged on x-ray source 110 with from the direction identical direction of 110 radiation X ray of x-ray source.When capture is single When unit 120 is on x-ray source 110, user can be while camera image be checked, it is easier to which ground is arranged and radioscopic image Related setting, this is because the deviation between the region illustrated in radioscopic image and the region illustrated in camera image reduces. Deviation between the region that can be illustrated in radioscopic image is made and the region illustrated in camera image is minimum and does not affect X to penetrate In the range of line imaging, the installation site of capturing unit 120 is suitably determined.

As shell 110a may be formed at the front of collimator 113, therefore shell 110a can be by such as transparent resin or glass The material of glass is formed, so that the impact of its X-ray to radiating from X-ray tube 111 is minimum.

In addition, the guide line GL of cross shape can be shown on the shell 110a that the front of collimator 130 is formed.When passing through When being built in the collimator lamp luminous ray radiation X ray radiation areas E in x-ray source 110, can be in X-ray radiation region E Center show the shade of guide line GL, and user can intuitively recognize X-ray radiation by checking the shade of guide line GL The position of region E.

Capturing unit 120 may be installed on the interior section of shell 110a, as shown in Figure 4.Alternatively, capture single Unit 120 is also may be installed on the exterior section of shell 110a.Here, capturing unit 120 may be installed and be arranged on shell 110a week On frame at edge.However, due to the embodiment not limited to this of x-ray imaging equipment 100, therefore capturing unit 120 can be installed In any position, as long as the image of object can be captured at the position.

In addition, capturing unit 120 can also be implemented as stereoscopic camera.In this case, camera can both be arranged in X-ray The left side in 110 front of source, is arranged on the right side of which again.When capturing unit 120 is implemented as stereoscopic camera, can capture with regard to camera The information of the depth of image, and can use depth information, improves the image recognition precision that calculates based on camera image and each The reliability of the information of type.

Fig. 5 A and Fig. 5 B are all to illustrate the auto-exposure control (AEC) that can be used for the x-ray imaging equipment according to embodiment The view of the example of sensor.

In order to prevent object by X-ray excess radiation, x-ray imaging equipment 100 can perform AEC.For this purpose, list can installed The AEC sensor assembly 26 of detection x-ray dose, in unit 24, is set, as shown in Figure 5 A.Although in this illustration using The installation unit 24 of frame 20 is describing AEC sensor assembly 26, but AEC sensor assembly can also be provided at the installation list of stage body 10 At unit 14.

Fig. 5 A illustrates the installation unit 24 from forward observation.AEC sensor assembly 26 is may be provided inside installation unit 24 And may include multiple AEC sensor 26a, 26b and 26c of separately detect x-ray dose.For example, every in AEC sensor Individual it is implemented as ionisation chamber.

When AEC sensor arrangement is in the center of x-ray imaging part, most accurate AEC can be carried out.Can install Mark Ma, Mb and the Mc for representing multiple AEC sensor 26a, 26b and 26 position respectively is set at the surface of unit 24, by X Being centrally located in corresponding to the position of AEC sensor or choice arrangement in x-ray imaging portion centers of radial imaging part The AEC sensor at place.

Although as illustrated total of three AEC sensor (upside two, downside one) in fig. 5 with providing, this It is example.Can also arrange fewer of more than three AEC sensors, and also can differently arrange AEC sensor.

Reference picture 5B, AEC sensor assembly 26 also may be arranged at the front of X-ray detector 200.Detect towards X-ray The direction in the front of device 200 represents the incident direction of X-ray.Fig. 5 B illustrates that 200 front of X-ray detector sets when watching from side The AEC sensor assembly 26 that puts.

When X-ray is incided on AEC sensor, electric current can be produced, and AEC sensor can be by corresponding to the electricity for producing The signal of stream is sent to control unit 140.The signal for being sent to control unit 140 can be the digitized signal that amplifies.

Based on the signal for sending, control unit 140 determines whether the dosage of the X-ray of current incidence exceedes threshold dose. When the dosage of X-ray exceedes threshold dose, can (high pressure generator 101 supplies height to X-ray tube 111 to high pressure generator 101 Voltage) break signal is sent, to stop producing X-ray.

Meanwhile, can also prevent, in the front of AEC sensor assembly 26 arrangement, the grating that X-ray is scattered.From x-ray source Some in the X-ray of 110 radiation can be because colliding in the air or the material that form object before X-ray detector 200 is reached Grit and deviate its original path, scatter.When the X-ray being scattered is incided on X-ray detector 200, dissipated The X-ray that penetrates has a negative impact (such as, reducing the contrast of radioscopic image) to radioscopic image.

Grating has the structure for being disposed with the protective substance (such as, lead (Pb)) for absorbing X-ray.In the X-ray for being radiated Among, the X-ray (that is, the X-ray that advances forward) that moves ahead in its its original orientation through the part protective substance and Incide on X-ray detector 200, the X-ray being scattered is collided and be absorbed in protective substance with protective substance.

Protective substance may be disposed to linear structure, be also arranged to crosswise structure.In addition, protective substance can be being penetrated with X The side that the radiation direction of line is approximate is inclined upwardly and can densely arrange or abreast arrange.

Although not shown in the accompanying drawings, but driver element can be set in installation unit 24, driver element includes can machinery The motor of ground moving grating.Therefore, can pass through control signal to be sent externally to driver element, adjust angle or the center of grating Position.

Meanwhile, although AEC sensor assembly 26 is described as being arranged on installation unit 24 in this example, but AEC Sensor assembly 26 can be also integrally provided with X-ray detector 200.

Fig. 6 and Fig. 7 are all to be shown in the picture example that show on the display unit according to the x-ray imaging equipment of embodiment View.

As shown in Figure 6, can show for arranging setting for X-ray radiation condition on the screen 150a of display unit 150 Put window 151 and Work List 155.

Work List 155 may include to learn list 155a and protocol list 155b, can select to learn from study list 155a Practise and can select from protocol list 155b imaging protocol.Study may refer to one group of radioscopic image being relative to each other.When from When any one study is selected in study list 155a, show the imaging protocol that learns selected by may select from being applied to Protocol list 155b.

X-ray imaging region can be changed for each imaging protocol, and suitable X-ray radiation condition can be penetrated for each X Line imaging region is changed.Imaging protocol can be determined according to x-ray imaging part, attitude of object etc..For example, imaging association View may include overall anteroposterior position (AP), overall postero-anterior position (PA) and unitary side position (LAT), may also include chest AP, chest PA With chest LAT, and long bone AP, long bone PA and the long bone LAT for long bone (such as, thigh bone) is may also include.In addition, imaging association View may also include belly and be erected into picture.

The graphic user interface (GUI) that X-ray radiation condition can be set wherein can be shown on window 151 is set.GUI May include the multiple Drawing Objects that can be used to arrange various X-ray radiation conditions.In this embodiment, on display unit 150 Shown can all be referred to as figure for providing information or the object (such as, button and icon) from user's reception control command Object.

It is used for receiving for arranging X-ray radiation condition from user due to arranging the Drawing Object shown on window 151 Order, therefore Drawing Object can be implemented as corresponding respectively to the button of various X-ray radiation conditions.

For example, can show：Tube voltage settings button 151a, for receiving tube voltage setting；Tube current settings button 151b, For receiving tube current setting；And time for exposure settings button 151c, for receiving X-ray exposure set of time.User can Each button in select button, X-ray radiation condition setting is become with desired value.Can pass through according to input block 160 type is clicked on or touched carrys out select button.

According to embodiment, tube voltage settings button 151a can be included respectively for increasing the button of tube voltage and for reducing The button of tube voltage, tube current settings button 151b can be included respectively for increasing the button of tube current and for reducing tube current Button time for exposure settings button 151c can include respectively for increasing the button of time for exposure and for reducing the time for exposure Button.

In addition, may also display following button：Become for receiving and whether will execute X-ray at support 20 or at stage body 10 As the catch position settings button 151d of related setting, the object size for receiving the selection related to patient size is selected Button 151e, for receive the setting related to the size of collimator 113 collimator settings button 151f, for reception and The AEC select button 151g of the related selection of AEC sensor, the sensitivity for the reception setting related to sensitivity are received and are pressed Button 151h, the button 151i for the reception setting related to density, the grating selection for the reception selection related with grating Button 151j, for receiving the wave filter select button 151k of the selection related to wave filter, for reception and focal spot size phase Focus select button 151r of the selection of pass etc..

These buttons can be implemented as the shape formed by picture, letter, symbol etc..User can by mobile cursor and Click on correspondingly-shaped or touch and manipulate the shape to select any one shape.Therefore, can change corresponding to selected shape Setting.

Meanwhile, when the selection related to patient size is input into, the mapped acquiescence as correspondingly-sized can be set The X-ray radiation condition of value.For example, memory cell 170 can store the X-ray for each size in multiple sizes of patient Radiation condition is mapped to database therein.

When user selects the size of patient, show in window 151 is set mapped as the silent of correspondingly-sized Recognize the X-ray radiation condition (such as, tube voltage, tube current and time for exposure) of value.Can be without applying the X-ray of mapping with changing Radiation condition, or user may be selected with each the corresponding button in X-ray radiation condition and according to said method again Each in X-ray radiation condition is set.Here, user can refer to and arrange the acquiescence X-ray radiation bar shown in window 151 Part, is once again set up each in X-ray radiation condition.

In addition, x-ray imaging region can be changed for each imaging protocol, suitable X-ray radiation condition can be directed to Each x-ray imaging region is changed.Therefore, can be according to the imaging protocol selected from Work List 155 and from setting window The size of the object selected in 151, is arranged differently than X-ray radiation condition.

The type of the Drawing Object shown in above-mentioned setting window 151 and arrangement are all schematic.Can be according to designer Selection, omit some in above Drawing Object, may also provide for changing the figure in addition to above Drawing Object for arranging Shape object, and above Drawing Object can be provided by the arrangement different from the arrangement in above-mentioned example.

When the setting of X-ray radiation condition is completed, user may be selected exposure button 151l come execute x-ray imaging and Reset button 151n can be selected when Initialize installation is attempted.

Meanwhile, in order to obtain executing the information needed for x-ray imaging, capturing unit 120 can just face X in x-ray source 110 Camera image is captured while ray detector 200.In this case, X-ray detector 200 or X-ray detector 200 are pacified The installation unit 14 and 24 being mounted in thereon can be covered by object 1, and can be not shown in camera image.On the contrary, when in object 1 When capture camera image while 200 front of X-ray detector is not located at, can illustrate in camera image that X-ray is detected Device 200 or X-ray detector 200 installation unit 14 and 24 mounted thereto.Capture can be shown in the side for arranging window 151 Camera image 152, as shown in Figure 7.

The Work List 155 illustrated in Fig. 6 and the camera image 152 illustrated in Fig. 7 can switch each other.Showing working line When selecting camera image button I while table 155, Work List 155 may be switched to camera image 152, and show camera When selecting X button 152b while image 152, camera image 152 may be switched to Work List 155.Alternatively, when When selected imaging protocol needs joining image-forming, Work List 155 can automatically switch into camera image 152, then can show Picture with regard to following joining image-formings.

Can be by overlapping the X-ray detector 200 illustrated in camera image 152 with reference to Fig. 7, X-ray radiation window B1 Or shown on installation unit 24.In this illustration, X-ray detector 200 is arranged in installation unit 24, and is installed Unit 24 shows in camera image.

X-ray radiation window B1 is the X-ray detector reached by the X-ray radiated from x-ray source 110 for mark The instrument of (that is, the X-ray radiation region E) in 200 region.Control unit 140 can calculate X according to algorithm explained below Ray radiation areas E, and show in camera image 152 and represent the size of X-ray radiation region E that calculates and position X-ray radiation window B1, to provide a user with the size of X-ray radiation region E and the information of position with regard to calculating.This In, the size of X-ray radiation window B1 and position be for the installation unit 24 illustrated in camera image 152.

User can be penetrated by the X for being input into scheduled operation order to adjust display on display unit 150 by input block 160 The position of beta radiation window B1, size or form, and control unit 140 can control collimation according to the operational order of input Instrument 113 is to adjust X-ray radiation region E.

Due to the various errors of equipment, the X of the X-ray radiation window B1 and reality shown on display unit 150 can be caused E is different for ray radiation areas.That is, in some cases, X-ray radiation window B1 may not reflect exactly The position of actual X-ray radiation region E or size.Therefore, the X for illustrating in the executable checking Fig. 7 of x-ray imaging equipment 100 is penetrated Whether beta radiation window B1 reflects the process of actual X-ray radiation region E exactly.

First, the method for showing X-ray radiation window B1 will be described on display unit 150.

Control unit 140 can be using the coordinate information of the x-ray imaging equipment 100 for prestoring, on display unit 150 Show X-ray radiation window B1.Control unit 140 may include to prestore with x-ray source 110 and X-ray detector 200 it Between distance, the form of slot R that formed of collimator 113 and area, from X-ray tube 111 to the slot R's of collimator 113 Relevant multiple information such as distance, or above multiple information can be calculated from the information for prestoring.

Control unit 140 can calculate, using multiple information above, the X-ray radiation formed at the surface of installation unit 24 The three-dimensional coordinate of region E.The three-dimensional coordinate of the X-ray radiation region E calculated by control unit 140 is become corresponding to X-ray The coordinate that the world coordinates in space as residing for equipment 100 is fastened.The X-ray radiation region E's calculated by control unit 140 Coordinate information may include the coordinate at least summit of X-ray radiation region E.

Represent that the X-ray radiation window B1 in X-ray radiation region is shown on camera image 152 by overlapping.By In being based on two-dimensional coordinate system by overlapping the X-ray radiation window B1 shown on camera image 152, therefore control single The information of the three-dimensional coordinate with regard to X-ray radiation region E for calculating is converted into the seat based on two dimensional image coordinate system by unit 140 Mark.

In addition, the camera image 152 illustrated in Fig. 7 is the image acquired in capturing unit 120, capturing unit 120 is caught Coordinate system is different from global coordinate system.Therefore, in order to the information of the three-dimensional coordinate with regard to X-ray radiation region E is converted into base In the coordinate of two dimensional image coordinate system as above, global coordinate system should be converted into camera coordinates system.That is, complete Office's coordinate system should be converted into camera coordinates system, and the three-dimensional coordinate of the coordinate with regard to being converted into based on camera coordinates system Information should be converted into the coordinate based on two dimensional image coordinate system.

For by the coordinate (X, Y, Z) based on global coordinate system be converted into the coordinate (x, y) based on two-dimensional coordinate system etc. Formula can be expressed as equation 1.Control unit 140 can using the global coordinate system expressed by equation 1 below and two-dimensional coordinate system it Between relation, the three-dimensional coordinate in X-ray radiation region formed at X-ray detector 200 is converted in display unit The two-dimensional coordinate of the X-ray radiation window B1 shown on 150.Control unit 140 can use the two-dimensional coordinate being as above converted to, By X-ray radiation window B1 being overlapped on the camera image shown on display unit 150 show X-ray radiation window B1.

In equation 1, x and y represents the coordinate (that is, the coordinate of image coordinate system) of two-dimensional image sensor, X, Y and Z generation The coordinate of table global coordinate system.

In above equation 1, first matrix in left side includes that the inner parameter of capturing unit 120 (such as, is captured single The focal length of unit 120 and principal point) as matrix element.In equation 1, fx and fy represents the focal length of capturing unit 120, and cx and cy is represented The principal point of capturing unit 120.

In equation 1, second matrix on right side is to allow the matrix of global coordinate system matching camera coordinate system and wrap The external parameter (such as, the installation direction of capturing unit 120) of capturing unit 120 is included as matrix element.

In equation 1, A represents the anglec of rotation (roll angle) with the z-axis of camera coordinates system as rotary shaft, and B is represented with phase The x-axis of machine coordinate system is the anglec of rotation (angle of pitch) of rotary shaft, and C represents the rotation with the y-axis of camera coordinates system as rotary shaft Angle (yaw angle).In addition, t₁、t₂And t₃Translational movement distance camera coordinates system and global coordinate system between is all represented.

Fig. 8 A is to illustrate the conceptual view just from the light in the expression X-ray radiation region of X-ray source radiation, and Fig. 8 B is to illustrate The camera image for showing on the display unit includes the view of the example of light radiation region, and Fig. 9 is illustrated based on light radiation area Domain shows the view of the example of X-ray radiation window.Figure 10 is to be shown with the X-ray radiation window of coordinate information generation and lead to Cross the view of the X-ray radiation window of image procossing generation.

Reference picture 8A, the light source that can be included by x-ray source 110 (for example, lamp of collimator) luminous ray VL spoke Penetrate the region that mates with X-ray radiation region E.

As seen in fig. 8b, also illustrate that by luminous ray VL on the surface of installation unit 24 in camera image 152 Light radiation region L of generation.Control unit 140 can extract the side of light radiation region L from camera image 152 by image procossing Boundary and X-ray radiation window B2 can be produced based on the border of light radiation region L that is extracted, as shown in Figure 9.Produced X-ray radiation window B2 can be shown on camera image 152 by overlapping.In order to by the two X-ray radiation windows B1 and X-ray radiation window B2 are distinguished from each other out, in embodiment explained below, with the X-ray spoke of coordinate information generation Penetrate window B1 and the first X-ray radiation window B1 is referred to alternatively as, the X-ray radiation window B2 produced by image procossing is referred to alternatively as Second X-ray radiation window B2.

X-ray imaging equipment 100 according to embodiment experiences light radiation region L and reality for forming the lamp of collimator The X-ray radiation region E calibration process that is mated and the camera parameter (such as, principal point, the focal length that determine capturing unit 120 With setting angle etc.) so that on display unit 150, the X-ray radiation window B1 for showing and X-ray radiation window B2 can be exactly Represent actual X-ray radiation region E.

When there is not mistake in calibration process, the X-ray radiation window B1 that produced using coordinate information and pass through The X-ray radiation window B2 that image procossing is produced matches each other, as shown in Figure 10.Therefore, as the first X-ray radiation window B1 When mismatched with the second X-ray radiation window B2 each other, it may be determined that occur in that mistake in above-mentioned calibration process.Therefore, control Unit 140 executes following process：The first X-ray radiation window B1 is compared with the second X-ray radiation window B2 by executing Whether process relatively, checking occur in that mistake in above-mentioned calibration process.

Position, form due to the X-ray radiation window B1 that produced using above two method and X-ray radiation window B2 Difference and size between means to occur in that mistake in calibration process that therefore control unit 140 can pass through display unit 150 Show that request executes message of calibration etc..In addition, can pass through the first X-ray radiation window B1 and the second X-ray radiation window B2 overlaps on camera image 152 to show the first X-ray radiation window B1 and the second X-ray radiation window B2, so as to directly perceived Ground represents the two X-ray radiation window B1 unmatched and X-ray radiation window B2 each other.User can check the message and Re-execute above-mentioned calibration process.

In addition, control unit 140 can be when the X-ray radiation window produced using above two method be mismatched each other Inconsistent degree is calculated, to calculate for inconsistent calibration parameter is solved, rather than shows that request executes the message of calibration. Calibration can be executed automatically based on the calibration parameter for calculating, calibration parameter can be shown on display unit 150 to instruct user Execute calibration.

Control unit 140 can calculate Jiao for solving inconsistent required capturing unit 120 based on the inconsistent information Away from and principal point, and variable global coordinate system being converted into needed for camera coordinates system can be calculated.

In addition, in the disclosed embodiment, due between the focus of capturing unit 120 and the focus of X-ray tube 111 Difference, causes deviation occurs.Control unit 140 can calculate the parameter compensated needed for the deviation using inconsistent information.Control Unit processed 140 can be executed automatically calibration or can be shown by display unit 150 and calculate using the parameter being calculated as above Parameter to aid in user to execute calibration.

Meanwhile, before x-ray imaging is carried out, executable by x-ray source 110 according to the x-ray imaging equipment of embodiment The process aligned with each other with X-ray detector 200.Can pass through in the center in X-ray radiation area and X-ray detector 200 The heart is mated, will be aligned with each other to x-ray source 110 and X-ray detector 200.Hereinafter, this will be entered with reference to Figure 11 to Figure 15 Row is described in detail.

Figure 11 to Figure 15 be illustrate by according to the x-ray source of the x-ray imaging equipment of embodiment and X-ray detector each other The view of the method for alignment.

As shown in Figure 11, control unit 140 is by the method for above-mentioned use coordinate information or by image procossing The method on border in X-ray radiation region is extracted producing X-ray radiation window B3, and by by produced X-ray spoke Penetrate window B3 to overlap on the camera image 152 captured by capturing unit 120 to show produced X-ray radiation window B3.

In addition, as shown in Figure 12, control unit 140 is by the method for above-mentioned use coordinate information or by image The method for processing the border for extracting the X-ray radiation detector 200 illustrated in camera image 152 represents X-ray detection to produce The detector boundary line B4 on the border of device 200, and by produced detector boundary line B4 is overlapped capturing unit 120 Detector boundary line B4 produced by showing on the camera image 152 for being captured.When as in this illustration, X-ray When detector 200 is arranged on 24 inside of installation unit, X can be substituted using the installation unit 24 illustrated in camera image 152 and penetrate Thread detector 200.

Can be led to by overlapping the X-ray radiation window B3 shown on camera image 152 and detector boundary line B4 Cross and shown with different colours and be distinguished from each other out.In Figure 11 to Figure 15, show X-ray radiation window B3 with solid line and use Dotted line shows detector boundary line B4.

In figs. 13 and 14, illustrate detector boundary line B4 and X-ray radiation window B3 on display unit 150 together The example of display.

Four summits and the four of the detector boundary line B4 for corresponding respectively to this four summits as X-ray radiation window B3 Interval g between individual summit all with identical shown in Figure 13 when, control unit 140 can determine that X-ray detector 200 and X-ray Source 110 is aligned with each other.

Alternatively, when the center of the center c1 of X-ray radiation window B3 and detector boundary line B4 as shown in Figure 4 When c2 matches each other, control unit 140 can determine that X-ray detector 200 and x-ray source 110 aligned with each other.

Four summits and the four of the detector boundary line B4 for corresponding respectively to this four summits as X-ray radiation window B3 Interval g2, g3, g4 and g5 between individual summit is different, or the center c1 of X-ray radiation window B3 as shown in Figure 15 When mismatched with the center c2 of detector boundary line B4 each other, control unit 140 can determine that X-ray detector 200 and x-ray source 110 misalignment each other.In this case, control unit 140 can calculate four summits of X-ray radiation window B3 and right respectively Interval g2, g3, g4 and g5 that should be between four summits of the detector boundary line B4 on this four summits and calculate and make calculating X-ray source 110 or displacement and the moving direction of X-ray detector 200 that the interval for going out matches each other.

Control unit 140 can be by the displacement according to the x-ray source 110 being calculated as above or X-ray detector 200 Mate interval with moving direction mobile x-ray source 110 or X-ray detector 200.

Alternatively, by display unit 150, control unit 140 also can show that the x-ray source 110 for calculating or X are penetrated The displacement of thread detector 200 and moving direction, to instruct user's mobile x-ray source 110 or X-ray detector 200.

Alternatively, control unit 140 can calculate the center c1 of X-ray radiation window and the center of detector boundary line Interval g1 between c2, and the center with X-ray radiation window and detector boundary line can be calculated based on the interval for calculating Center coupling x-ray source 110 or X-ray detector 200 moving direction and displacement.Control unit 140 can pass through Detected according to the displacement mobile x-ray source 110 or X-ray of the x-ray source 110 being calculated as above or X-ray detector 200 Device 200 comes the center of the center of matching X-ray radiation window and detector boundary line.

Alternatively, by display unit 150, control unit 140 also can show that the x-ray source 110 for calculating or X are penetrated The moving direction of thread detector 200 or displacement, to instruct user's mobile x-ray source 110 or X-ray detector 200.

As shown in Figure 15, can also using the displacement and moving direction of x-ray source 110 or X-ray detector 200 as Text shows, and also can by X-ray radiation window B3, detector boundary line B4, interval each other between unmatched summit, Interval between the center c1 of X-ray radiation window and the center c2 of detector boundary line shows as image.

Meanwhile, when x-ray source 110 and X-ray detector 200 aligned with each other when, user can be input into by input block 160 Scheduled operation order, to adjust position, size or the form of the X-ray radiation window B3 shown on display unit 150.For example, Position, size or the form of X-ray radiation window B3 can be adjusted by the border of dragging X-ray radiation window B3.

When user adjusts X-ray radiation window B3, X-ray radiation window B3 can deviate the side of X-ray detector 200 Boundary.

Figure 16 is to be shown in the X-ray radiation window that show on the display unit according to the x-ray imaging equipment of embodiment Deviate the view of the example on X-ray detector border.

As shown in Figure 16, the X-ray radiation window B3 for showing on display unit 150 can be partially away from camera image 152 In the border of X-ray detector 200 that illustrates.In addition, in this illustration, X-ray detector 200 is arranged on installation unit 24 Inside, and installation unit 24 is only shown in camera image 152.In this case, based on X-ray radiation window B3 can be The no border for deviateing installation unit 24 is determining whether X-ray radiation window B3 deviates the border of X-ray detector 200.

Situation that X-ray radiation window B3 be partially away from the border of X-ray detector 200 although figure 16 illustrates, but X Ray radiation window B3 is likely to completely offset from the border of X-ray detector 200.

When the region on border of X-ray detector 200 is deviateed with X-ray radiation, it may appear that be unnecessarily exposed to Amount X-ray.When X-ray radiation window B3 deviates the border of the X-ray detector 200 illustrated in camera image 152, control is single Unit 140 can be by as shown in Figure 16 with region B3-2 and the presence on the border of different colours display deviation X-ray detector 200 Region B3-1 in the border of X-ray detector 200 informing user, to prevent from being exposed to excess X-radiation.

For example, the region B3-1 that control unit 140 can be will be present in the border of X-ray detector 200 is shown in green And it is shown in red to will deviate from the region B3-2 on the border of X-ray detector 200, to inform user X-ray radiation window B3 Deviate from the border of X-ray detector 200.As reference, in the example that figure 15 illustrates, X is displayed on using solid line The border of the X-ray radiation window B3 in the border of ray detector 200, and show deviation X-ray detector using dotted line The border of the X-ray radiation window B3 on 200 border, both is distinguished from each other out.

X-ray radiation window is informed using different colours or dotted line and solid line and have deviated from X-ray detector 200 Border is only example, also using sound or the vibration of input block 160.That is, x-ray imaging equipment 100 can make With the various methods of view-based access control model, the sense of hearing or haptic stimulus, the X-ray radiation window shown on user's display unit 150 is informed Deviate from the border of X-ray detector 200.

Meanwhile, in order to determine whether X-ray radiation window B3 deviate from the X-ray detector illustrated in camera image 152 200 border, control unit 140 may compare the position of above-mentioned detector boundary line B4 and X-ray radiation window B3 position it Between relation.

Due to executing x-ray imaging to X-ray radiation region E, therefore X-ray radiation region may correspond to x-ray imaging Region.When x-ray imaging region is specified, control unit 140 can control 113 matching X-ray radiation areas E of collimator and refer to Fixed x-ray imaging region.

X-ray imaging region can be directly specified when x-ray imaging is executed by user, but can also be by being directed to multiple imagings Each in agreement carries out default and selects one in imaging protocol to specify automatically X when x-ray imaging is subsequently executed Radial imaging region.Hereinafter, with reference to the accompanying drawings this is described in detail.

Figure 17 to Figure 19 is the view for illustrating the example for presetting imaging region according to imaging protocol, and Figure 20 is to illustrate to be stored in The view of the information in memory cell.

As shown in Figure 17, can be for each the default imaging region in multiple imaging protocols.Related to imaging protocol Description is same as described above.

In order to for each the default imaging region in multiple imaging protocols, display unit 150 can show that imaging protocol sets Put window 154.Imaging protocol arranges window 154 and may include protocol list 154c.

User can select from protocol list 154c to expect becoming by its imaging region of user setup using input block 160 As agreement.

In order to receive the setting to imaging region, can show on display unit 150 with (for example, to be imaged with object Target) the approximate shape of shape object model 154b, and user can adjust the imaging shown on object model 154b The positions and dimensions of window 154a, to arrange the imaging region of selected imaging protocol.In this embodiment, to liking people Body, and object model 154b has the shape of human body.The general profile that object model 154b illustrates object is only needed to, and is differed The detailed construction of object is shown surely.

For example, by cursor C to be placed on the edge of imaging window 154a or summit and can select and pull imaging window 154a is adjusting size and the position of imaging window 154a.

Although the shape of imaging window 154a can be quadrangle in this illustration, but shape not limited to this, imaging window Mouth 154a can have the shape in addition to quadrangle form, including polygonal shape, round-shaped and elliptical shape.

In the specific example that imaging region is set for each in multiple imaging protocols, object as shown in Figure 18 Can be arranged to overall AP from face to the region of part above knee, object as shown in Figure 19 from neck to waist Region can be arranged to chest AP.

As shown in Figure 20, the imaging region of setting can be set up with the imaging protocol corresponding to which and map and be stored in In protocol database (DB), agreement DB can be stored in memory cell 170.

In addition, can also map and store X-ray radiation bar for each in multiple imaging protocols together with imaging region Part.In this case, can be for each default radiation condition in multiple imaging protocols or can be by user setup X-ray spoke Penetrate condition.

When x-ray imaging and select in multiple imaging protocols one is executed, control unit 140 can be in memory cell The imaging region with the foundation mapping of selected imaging protocol is searched in 170 and the imaging region to finding executes X-ray and becomes Picture.

In addition, when together with imaging region maps and when storing X-ray radiation condition, being penetrated by applying stored X Beta radiation condition is executing x-ray imaging.

Figure 21 is the view for illustrating the process for extracting the imaging region corresponding to imaging protocol from the image of object, Figure 22 It is the view of the camera image for illustrating the imaging region for showing extracted.

User can select imaging protocol before x-ray imaging is executed and be disposed in X-ray detector 200 in object While front, capturing unit 120 can capture camera image 152.

Control unit 140 can search for the imaging region for setting up mapping with selected imaging protocol in memory cell 170 And imaging region is extracted from camera image 152.

Control unit 140 can pass through to apply the image procossing of such as object recognition algorithm to camera image 152, from camera figure Imaging region is extracted in picture 152.For example, rim detection can be applied to camera image 152, with the profile of extracting object or form simultaneously And detect some features (width of length (highly), head or shoulder such as, from head to toe needed for recognition imaging region Degree and the length of leg).In this illustration, when height substantially, width etc. is recognized, can be based on height substantially, width etc. Come the feature needed for detecting, even without all detailed features of identification object.

In another example, can also be by camera image of the analysis with object and without between the camera image of object Difference carry out the form of extracting object, and the various image processing techniques of such as object pattern detection and face recognition can be applied To improve the efficiency for extracting imaging region and accuracy.

When imaging region is extracted by control unit 140 from camera image 152, the controllable collimation of control unit 140 Instrument 113 so that X-ray radiation region E corresponds to imaging region.That is, control unit 140 can control collimator 113, make Handy x-ray bombardment imaging region.Here, when mobile x-ray source 110 or X-ray detector 200 is needed, x-ray source 110 Or X-ray detector 200 is movable to the position corresponding to imaging region.In addition, when the scope of imaging region is by executing list When secondary x-ray imaging can not be capped, imaging region can be divided and can perform joining image-forming.

In addition, display unit 150 can be by overlapping camera image 152 by the imaging region for being extracted as shown in Figure 22 On showing extracted imaging region, with provide the user with to will capture object 1 the related information in region.

Figure 23 is the view of the operation for illustrating the default information related to object size, Figure 24 be illustrate prestore with The view of the related information of object size.

The X-ray radiation condition that optimal radioscopic image is obtained can be different according to object size, and admissible X X ray exposure x amount can be different according to object size.Therefore, according to the predeterminable and object of x-ray imaging equipment 100 of embodiment Multiple sizes in each corresponding X-ray radiation condition, and object size directly can be classified by user.

With reference to the example illustrated in Figure 23, display unit 150 can show object size setting screen 155.Specifically, show Show that unit 150 can show object model 154b and object size be classified using input block 160.In specific example, can Specified altitude assignment, the length of the height of shoulder and leg and it is mapped as specific dimensions.Highly, the length of the height of shoulder and leg Particular value can be also designated as and also preset range can be designated as.

In order to the length of specified altitude assignment, the height of shoulder and leg, user can directly input value, horizontally and vertically can pull The edge of the object model 154b shown on display unit 150, and also can vertically pull the line L corresponding to height of head_H、 Line L corresponding to shoulder height_S, and length corresponding to leg line line L_L.

The object size that is classified by user can be stored in object size DB as shown in Figure 24, and object size DB can be stored in memory cell 170.

The size of although object can be classified as large, medium and small, children, baby etc., but the enforcement of x-ray imaging equipment 100 Example and also can be subdivided or conclude not limited to this.

Figure 25 is to illustrate that each that can be directed to by which in multiple sizes of object arranges the picture of X-ray radiation condition View.

With reference to Figure 25, can show on the picture 150a of display unit 150 and setting for X-ray radiation condition can be arranged by which Put window 151.User can arrange X-ray radiation condition for each in multiple sizes of object.

GUI can be shown on window 151 is set, the GUI can be passed through, X is set for each in multiple sizes of object Ray radiation condition.For example, the identification mark of the object for being capable of identify that advance classification can be shown in the upper part for arranging window 151 Sign (large, medium and small, children and baby), and select to open when recognizing in label when user's handle input unit 160 With menu, the menu can be passed through, X-ray radiation condition is set for selected object size.

When user movement cursor C select corresponding to medium size (in) identification label when, interactive operation as a result, can Show middle-sized object model 154b on the right side for arranging window 151.

When have selected the object size for expecting to arrange its X-ray radiation condition, can enable can be directed to by which selected Object size select X-ray radiation condition GUI.

When the GUI is enabled, can show and can be used for the various types of of the X-ray radiation condition that selected object size is set The Drawing Object of type.For example, the tube voltage settings button for receiving tube voltage setting can be shown in window 151 is set 151a, for receive tube current setting tube current settings button 151b and the exposure for receiving X-ray exposure set of time Set of time button 151c.User may be selected each in these buttons, and X-ray radiation condition setting is become with desired Value.

In addition, can also show in window 151 is arranged for receiving and whether will execute X at support 20 or at stage body 10 The catch position settings button 151d of the related setting of radial imaging, for receiving the setting related to the size of collimator 113 Collimator settings button 151f, for receiving the AEC select button 151g of the selection related to AEC sensor, being used for receiving The sensitivity settings button 151h of the setting related to sensitivity, the button 151i for the reception setting related with density, use Grating select button 151j in the reception selection related to grating, the wave filter for receiving with the selection of wave filter correlation are selected Select button 151k, for receiving focus select button 151r of selection related to focal spot size etc..

Object size select button 151e can be with the selection interactive operation of identification label.For example, when user have selected correspondence In medium size (in) identification label when, the icon of the middle-sized people that object size select button 151e includes can quilt Highlight.

When completing to arrange X-ray radiation condition for each in multiple sizes of object, user may be selected default pressing Button 151l completes to arrange and can select when Initialize installation is attempted reset button 151n.

The GUI illustrated in Figure 25 is only the example that can be applicable to x-ray imaging equipment 100, it should be noted that GUI can have There are the constructions different from the construction illustrated in Figure 25.

Meanwhile, in addition to object size, when X-ray radiation condition is arranged, further account for imaging protocol.In this feelings Under condition, can pass through to split each in object size according to imaging protocol, X is set for each in multiple object size and is penetrated Beta radiation condition.For example, can pass through according to overall PA, entirety AP, entirety LAT, chest PA, chest AP, chest LAT, leg PA, leg Large scale is split to arrange large scale X-ray radiation condition by AP and leg LAT, similarly, can also arrange other remaining sizes.

In addition, when the feature due to imaging protocol needs to execute joining image-forming, be able to also will be spliced based on object model Region division becomes multiple regions and can arrange X-ray radiation condition for each in zoning.

The X-ray radiation condition arranged for each in multiple sizes of object is also stored in memory cell 170 In or for example can also be collectively stored in object size DB with object size.

Figure 26 is the view for illustrating the operation for automatically determining object size based on camera image.

When capturing unit 120 captures camera image, control unit 140 can analyze camera image, to automatically determine object Size.

For example, control unit 140 can apply the image procossing of such as object recognition algorithm, to know from camera image 152 The starting point of the leg of other object 1, toe, shoulder, head etc. and can consider recognition result, source-image distance (ID) or Leg length, shoulder height and height is calculated in the case of source-object distance (OD).

Alternatively, control unit 140 can to camera image application rim detection with the profile of extracting object, and also The approximate size of object is estimated in the case of object outline size, SID or the SOD that can illustrate in camera image is considered.

For example, can prestore and be arranged based on the camera coordinates system of capturing unit 120, x-ray imaging equipment 100 Relation between the global coordinate system in space and the two-dimensional coordinate system of camera image, and can be come using the conversion between coordinate system Calculate the overall size of the object shown in the camera image in real space.

Control unit 140 can search for X-ray radiation bar corresponding with estimated object size in memory cell 170 Part, and x-ray source 110 etc. can be controlled according to the X-ray radiation condition for finding.

Meanwhile, when control unit 140 determines the size of object, can show on window 151 is set mapped as right Answer the X-ray radiation condition of size default value.The X-ray radiation condition of mapping can be applied in the case of not having to change, or User may be selected with each the corresponding button in X-ray radiation condition and be once again set up in X-ray radiation condition each. Here, user can refer to and arrange the acquiescence X-ray radiation condition shown in window 151 being once again set up in X-ray radiation condition Each.

As mentioned above, when the x-radiation imaging moiety of object is more than X-ray radiation region E or X-ray detector During the detection zone that 200 can detect X-ray wherein, x-ray imaging part is divided into multiple regions, and can be directed to Each in multiple zonings executes x-ray imaging respectively.

Meanwhile, by x-ray imaging part is divided into multiple regions, is imaged simultaneously for each in multiple zonings And splice the radioscopic image of each in multiple zonings and obtain single overall radioscopic image can use such as panoramic imagery, Joining image-forming, be divided into as etc. various terms representing.Describe for convenience, by the embodiment of description, this imaging is (complete Scape imaging, joining image-forming, be divided into as etc.) joining image-forming will be referred to as.In addition, the X-ray for each in zoning Each radioscopic image in image will be referred to as dividing radioscopic image and the x-ray imaging for each in zoning In each x-ray imaging will be referred to as being divided into picture.Additionally, being produced by multiple division radioscopic images are stitched together A raw image will be referred to as stitching image.Hereinafter, the embodiment related to joining image-forming will be described in detail with reference to the accompanying drawings.

Figure 27 is the view for illustrating the example images being stitched together, and Figure 28 is to illustrate division imaging region to execute splicing The view of the example of imaging, Figure 29 are the views for illustrating the overlapping region between each in multiple zonings.

As shown in Figure 27, x-ray imaging part can be divided into multiple regions and can be right by x-ray imaging equipment 100 Each in multiple zonings individually executes x-ray imaging.

The radioscopic image of zoning (that is, can be divided radioscopic image X by control unit 140₁、X₂And X₃) splice one Rise, one of the whole x-ray imaging part image X being stitched together is shown to produce₁₂₃.In this embodiment, will be at which The middle whole region for executing joining image-forming will be referred to as splicing regions.

As described above, when selected imaging protocol is corresponding to joining image-forming, Work List 155 is may be switched in Figure 28 The camera image 152 for illustrating.In addition, imaging region corresponding with selected imaging protocol can be automatically designated as splice region Domain.Control unit 140 can divide splicing regions automatically.For example, control unit 140 can be based on the height of detection zone and X-ray Less one among the maximum height of radiation areas, splicing regions are divided into uniform-dimension.

In specific example, (that is, represent top line L of the starting point of splicing regions when the height by splicing regions S is passed through_T Bottom line L with the terminal for representing splicing regions_BThe distance between) divided by the region to be detected of X-ray detector 200 height and When the value for obtaining is integer, solution becomes the quantity of the zoning used in joining image-forming and (that is, divides the number of radioscopic image Amount).On the other hand, when value is not integer, the quantity of zoning is bigger by 1 than solution, and the height of each in zoning Height less than the region to be detected of X-ray detector 200.

For example, as shown in Figure 28, when splicing regions S are divided into three zoning S₁、S₂And S₃When, can capture point Then these three division radioscopic images can be stitched together by not corresponding with zoning three divisions radioscopic image, with Produce a radioscopic image being stitched together.

Can mate in division radioscopic image to the boundary member between each, radioscopic image splicing will be divided one Rise, and radiation-curable X-ray so that the presumptive area divided between radioscopic image overlaps each other, to be mated.When completing Zoning specified when, control unit 140 can control collimator 113 to zoning radiation X ray so that X-ray is by spoke Be mapped to the scope that preliminary dimension is extended from zoning towards adjacent zoning.

As shown in Figure 29 in example, radiation-curable X-ray so that in the first zoning S₁With the second zoning S₂ Between arrange the first-the second overlapping region O₁₂And in the second zoning S₂With the 3rd zoning S₃Between arrangement second- Triple-overlapped region O₂₃.

Due to X-ray redundancy eradiation overlapping region O₁₂And O₂₃, therefore when genitals or the radiation-sensitive portion of heart When in overlapping region, overlapping region can be moved to other parts by control unit 140, to avoid X-ray radiation-sensitive Part carries out redundant radiation, or can be to user's output warning.

Can also pass through to process (such as, object recognition algorithm) to 152 application image of camera image to determine radiosensitive portion Divide whether in overlapping region.For example, in the length from head to toe central part office and as thigh starting A part can be determined to be the part residing for genitals, be spaced downwards a part of 20cm or less with armpit part or shoulder The part that can be determined to be residing for heart.

The information (for example, with regard to position or the information of its form) related to radiation-sensitive portion can be pre-stored in and deposit In storage unit 70 or can be also added by user or change.

When output warning, can visually be exported by display unit 150 or pass through in x-ray imaging equipment 100 Loudspeaker audibly exports warning.When visually output warning, overlapping region can be directly displayed on display unit 150, such as Shown in Figure 29, or inform that overlapping region is can be displayed on display unit 150 in the text at radiation-sensitive portion.Due to Transmission information is needed only to, the method for therefore exporting warning is unrestricted.

Overlapping region can deform in stitching image and stitching image in the quality of overlapping region can reduce.Therefore, User can based on the information related to overlapping region for being provided, determine lap be whether need to be avoided picture quality bad Pith in the radioscopic image of change.

Figure 30 and Figure 31 are the views for illustrating the operation for automatically adjusting overlapping region.

With reference to above-mentioned Figure 29, it is assumed that situations below：First-the second overlapping region O₁₂In cardiac component and second- Triple-overlapped region O₂₃In genital area part.

As shown in Figure 30, control unit 140 can be by the first zoning S₁Lower boundary move down so that first- Second overlapping region O₁₂Below cardiac component (1. → 1. '), and can be by the second zoning S₂Lower boundary to moving down Dynamic so that the second-the triple-overlapped region O₂₃In genitals beneath portions (2. → 2. ').

As the beginning and end of splicing regions S is constant, therefore splicing regions S are constant.Therefore, when due to the first dividing regions Domain S₁Lower boundary movement and cause the first zoning S₁Size exceed the size in the region to be detected of X-ray detector 200 Or X-ray radiation region maximum height when, or when due to the second zoning S₂Lower boundary movement and cause second stroke Subregion S₂Size exceed the region to be detected of X-ray detector 200 or maximum X-ray radiation region size when, can enter One step divides the first zoning S₁Or the second zoning S₂Or whole splicing regions S can be further divided into compared with cell Domain, then can control overlapping region again.

Alternatively, when the fact visually or audibly output overlapping region is in radiation-sensitive portion as mentioned above When, also overlapping region can be adjusted by user.In this case, radiation can be shown as shown in Figure 31 on camera image 152 Non-sensitive part 152d, to instruct user to reset overlapping region by avoiding radiation-sensitive portion.For example, user is removable shows The overlapping region that shows on unit 150 or the boundary line of the multiple zonings of movement are resetting overlapping region.

Figure 32 and Figure 33 are directly to specify the related view of the situation of splicing regions to user.

In the examples described above, according to the selection of imaging protocol, the imaging region for having mapped in advance is appointed as splice region Domain S.However, also can directly specify splicing regions by user.

As shown in Figure 32 and Figure 33, the camera image 152 that capturing unit 120 is captured is can be displayed on display unit 150. On display unit 150, represent top line L of splicing regions starting point_TWith bottom line L for representing splicing regions terminal_BCan be by weight It is stacked on camera image 152 and is shown.By watching camera image 152, user can intuitively recognize and obtain imaging region The necessary quantity for dividing imaging operation of splicing regions.In terms of this, it is directly perceived that display unit 150 is configured to allow for user And easily identification divides the optimal number of imaging operation, so as to prevent excess X-radiation from radiating.

Top line L_TWith bottom line L_BAny position on camera image 152 can initially be shown or worked as and have selected into During as agreement, the position corresponding to selected imaging protocol is can be displayed in.

When top line L_TWith bottom line L_BWhen showing any position on camera image 152, bottom line L_BCan be at camera The end portion of image 152.Due to regardless of object size, the pin of object all in the end portion of camera image 152, because This works as bottom line L_BCan be at camera image 152 end portion when because user need not handle input unit moving bottom Line L_B, so the work load of user can be reduced.

When top line L_TWith bottom line L_BShow that control unit 140 can perform image at the position corresponding to imaging protocol Process (such as, to 152 application recognizer of camera image) and recognize the part corresponding to imaging protocol.

Alternatively, top line L can only be shown_TWith bottom line L_BIn one and can by specify be divided into as Quantity is determining another.

User can handle input unit 160 adjusting top line L_TWith bottom line L_BPosition.For consumer-oriented behaviour Vertical, display unit 150 can display highlighting C, cursor C the manipulation of input block 160 can be shown on display unit 150 according to user Move on the picture for showing.

In the case that input block 160 is mouse, tracking ball or keyboard, when user by manipulate mouse, tracking ball, Or keyboard has moved top line L to be input into_TWith bottom line L_BControl command when, cursor C according to corresponding to manipulate direction and Amount of movement is moving.In the case that input block 160 is touch pad, cursor C is according to moving direction and the user of user's finger The amount of movement of finger is moving.

For example, user can pull top line L_TOr bottom line L_B, by top line L_TOr bottom line L_BMove to desired position Put, as shown in Figure 32 and Figure 33.Top line L_TWith bottom line L_BCan move in the vertical direction of object or on longitudinal direction. As described above, top line L can be passed through_TWith bottom line L_BLimit splicing regions S.That is, top line L_TWith bottom line L_BBetween Region can be splicing regions S.

Alternatively, when top line L_TWith bottom line L_BWhen moving to position corresponding with selected imaging protocol, use Family may further reference top line L after movement_TWith bottom line L_BPosition reassigning splicing regions.

When specified splicing regions S, control unit 140 can divide splicing regions S automatically.With drawing automatically for splicing regions S Split-phase close description with identical in above-mentioned example.

Control unit 140 can be whenever top line L_TWith bottom line L_BExecute when mobile and be evenly dividing in real time, and knot is shown Really.For example, when splicing regions S as shown in Figure 32 are divided into four region S₁、S₂、S₃And S₄When, can be using such as dotted line Guide line comes zoning, and the guide line of zoning can be numbered 1 to 4, to provide with regard to zoning sum and be dispatched to The information of the quantity of corresponding region.

1. first guide line can be the maximum region that will obtain its radioscopic image by executing single X-ray imaging Lower limit.2. second guide line can will be obtained under the maximum region of its radioscopic image by executing x-ray imaging twice Limit.3rd guide line 3. can be by by executing the lower limit that three x-ray imagings obtain the maximum region of its radioscopic image. 4th guide line 4. can be by by executing the lower limit that four x-ray imagings obtain the maximum region of its radioscopic image.

In addition, ought as shown in Figure 33 user by bottom line L_BTowards top line L_TDuring dragging, control unit 140 can Re-execute and be evenly dividing in real time.When splicing regions S reduce and be divided into three region S₁、S₂, and S₃When, zoning Guide line can be numbered 1 to 3, to inform that splicing regions are divided into total of three region.

In addition, altered in order to emphasize the quantity for dividing image, 4. display unit 150 can show the 4th guide line, with By its with remaining first guide line 1., 3. 2. the second guide line is distinguished with the 3rd guide line.4. 4th guide line can be shown Dotted line is shown as, can be blurred or show in different colors.But exemplary embodiment not limited to this, 4. the 4th guide line can press Different modes show, by its with remaining first guide line 1., 3. 2. the second guide line is distinguished with the 3rd guide line.

When complete splicing regions specified when, user may be selected application button 152a, when select application button 152a when, show Show that unit 150 can show partition window W1, W2, W3 on following camera images 152.

In addition, being input into for moving top line L while in display partition window_TOr bottom line L_BControl command when, This picture including partition window may be switched to include the previous picture of guide line so that splicing regions or zoning are by again Specify.

In addition, in the case that user as above-mentioned situation directly specifies splicing regions S, it may be determined that overlapping region is No in radiation-sensitive portion, and when find overlapping region in radiation-sensitive portion when, exportable warning can be automatic Control overlapping region.Alternatively, splicing regions S can directly be divided by user.In addition, in this case, as above-mentioned feelings Condition is the same, it may be determined that whether overlapping region is in radiation-sensitive portion, and when discovery overlapping region is in radiation-sensitive portion When, exportable warning can automatically control overlapping region.In addition, when the division of user input splicing regions S, can be in camera Show radiation-sensitive portion to guide user on image 152 so that overlapping region is not at corresponding radiosensitive portion Point.

Although in the embodiment above control unit 140 is described as splicing regions S being divided into uniform-dimension, but The embodiment not limited to this of x-ray imaging equipment 100.Can also adjust the size of each in zoning so as to different, And the size of each in zoning also can be directly set by user.User may specify the starting point of each zoning and end Point.If it is desire to whole splicing regions S are divided into three zonings, then may specify the first zoning S₁Starting point and end Point, the second zoning S₂Beginning and end and the 3rd zoning S₃Beginning and end.

If executing specifying for joining image-forming region by directly moving big x-ray source, so that user is difficult to accurately Specify splicing regions and user's major fatigue can be caused.

According to above example, x-ray imaging equipment can precisely specify splicing regions and can reduce human fatigue degree.

In addition, overlapping region can be adjusted by automatic or manual, prevent from radiating repeatedly important body part with X-ray.

Figure 34 A to Figure 36 is to illustrate that permission user arranges multiple dividing regions in the x-ray imaging equipment according to embodiment The view of the picture of the width in the X-ray radiation region of each in domain.

Traditionally, according to determined by collimator X-ray radiation region come the width in fixed partition region.However, due to Even with respect to single object, the area in each in zoning occupied by object be also different, therefore when point Not to the application of all zonings during X-ray radiation region with same widths, it may appear that unnecessary be exposed to excessive X and penetrate Line.

Therefore, X-ray can be adjusted for each in multiple zonings according to the x-ray imaging equipment 100 of embodiment The width of radiation areas.As X-ray radiation region is determined by collimation areas, therefore adjusting X-ray radiation region is Refer to adjust collimation areas.

As shown in Figure 34 A, partition window corresponding with multiple zonings respectively can be shown on camera image 152 W1, W2 and W3.First partition window W1 corresponds to the first zoning, and the second partition window W2 corresponds to the second zoning, 3rd partition window W3 corresponds to the 3rd zoning.

Alternatively, as shown in Figure 34 B, display unit 150 can show partition window W1, W2 and W3, partition window Adjacent window apertures in W1, W2 and W3 are partially overlapped by each other in 152 top of camera image.First partition window W1 and second divides window Mouth W2 can overlap each other, to show the first zoning S₁With the second zoning S₂Between overlapping region O₁₂, and second Partition window W2 and the 3rd partition window W3 can overlap each other, to show the second zoning S₂With the 3rd zoning S₃Between Overlapping region O₂₃.

As the size of partition window corresponds respectively to the size of zoning, therefore the width of zoning corresponds to warp The width of the X-ray radiation region E that collimator 113 is adjusted.Can be determined according to the division that control unit 140 or user execute The height of zoning, and can according to determined by zoning highly automatically adjusting collimator 113.

In this embodiment, the width of zoning and height are adjustable.User can be divided by forceps horizontal pulling The left margin of window W1, W2 and W3 and right margin are being input into the control command of the width for adjusting zoning.

For example, as shown in Figure 35, the left margin of the second partition window W2 can be pulled to the left and can be by its right margin Pulled to extend the width in X-ray radiation region to the right so that whole body is included in the body split-phase being directed to object In the X-ray radiation region of the zoning that answers.

Alternatively, as shown in Figure 36, the left margin of the 3rd partition window W3 can be pulled to the right and can be by which Right margin is pulled to the left to reduce the width in X-ray radiation region so that do not contain the background of leg from the leg being directed to object The X-ray radiation region of the corresponding zoning in portion is removed.

When the setting of the width in the X-ray radiation region completed for each in multiple zonings, Yong Huke Application button 152a is selected, and memory cell 170 can be stored with regard to set X-ray when have selected application button 152a The information of radiation areas width.

GUI can be shown on window 151 is set, X-ray can be arranged for each in multiple zonings by the GUI Radiation condition.For example, can arrange window 151 upside, show can by its identification zoning identification label 151p, and And correspond respectively to identification label #1, #2 and #3 of zoning can be respectively displayed on identification label 151p-1,151p-2 and On 151p-3.When user's handle input unit 160 and select recognize label in one when, can enable can by its setting pin GUI to the X-ray radiation condition of selected zoning.

Identical in the description related with the various types of buttons shown in the GUI for enabling and above-mentioned example, therefore general It is omitted.

It is also possible to use the collimator settings button 151f shown on setting window 151 and carry out metering needle in multiple zonings The collimator of each size, i.e. the size in X-ray radiation region.Here, when by selecting collimator settings button 151f Come adjust collimator size when, the camera image 152 shown on right side can interact operation, and can adjust in conjunctionly The width of section partition window W1, W2 and W3.

On the contrary, ought forceps horizontal pulling partition window W1, W2 and W3 as described above border adjusting X-ray radiation During the width in region, collimator settings button 151f can be interacted and be operated and change.For example, when by pulling partition window When the size of the collimator with respect to the first zoning S1 is reduced into 14 × 17 by the border of W1, arrange on window 151 and show Collimator settings button 151f can also show 14 × 17 size.

Meanwhile, the width in X-ray radiation region can be also automatically controlled by control unit 140.In this case, control Unit 140 can process (such as, rim detection) with the profile of extracting object to camera image application image, and can be based on object Border between profile and background is controlling the width in X-ray radiation region.

For example, the border that control unit 140 can pass through between object outline and background is in present illustrated X-ray spoke Reduce the width in X-ray radiation region when penetrating in region preventing unnecessary excess X-radiation from exposing, and can be by object When border between profile and background is outside present illustrated X-ray radiation region, the width of Extended X-ray radiation areas comes Information needed for obtaining.

When completing the size in X-ray radiation region and the setting of X-ray radiation condition for all multiple zonings When, user may be selected exposure button 151l to execute x-ray imaging and can selection while attempting carrying out Initialize installation Reset button 151n.

Figure 37 and Figure 38 are to illustrate that permission user is selected according to the AEC sensor in the x-ray imaging equipment of embodiment The view of picture.

As described above, the dosage of X-ray can be automatically controlled using multiple AEC sensor 26a, 26b and 26c.Can be penetrated according to X Line imaging part, using all or some in multiple AEC sensor 26a, 26b and 26c.Therefore, multiple divisions can also be for Each in region, executes the selection of AEC sensor.

As shown in Figure 37, can show in partition window W1, W2 and W3 correspond respectively to multiple AEC sensor 26a, Multiple Drawing Objects of 26b and 26c.Control unit 140 can pass through the position in each point in camera image 152 and real space Put and mated, execute the geometry registration of camera image 152.For example, control unit 140 can be using camera coordinates system, global seat Relation between mark system and image coordinate system.

Control unit 140 can obtain AEC sensor 26a, 26b and 26c's corresponding with the position of X-ray detector 200 Position and AEC sensor 26a, 26b are mutually coordinated with camera image 152 with 26c.Control unit 140 can perform image procossing, Thus AEC sensor 26a, 26b are mutually coordinated with camera image 152 with 26c and are folded corresponding to the Drawing Object of AEC sensor It is added on camera image 152.

For example, Drawing Object may include multiple AEC sensors corresponding with multiple AEC sensor 26a, 26b and 26c respectively Button 153a-1,153b-1 and 153c-1, multiple AEC pick up button 153a-2,153b-2 and 153c-2 and multiple AEC are passed Sensor button 153a-3,153b-3 and 153c-3.Each in AEC pick up button is can be displayed in corresponding to its AEC sensor Position.

User is may be selected for the AEC sensor of each in multiple zonings.As the first partition window W1 of selection In multiple AEC pick up button 153a-1,153b-1 and 153c-1 among with press corresponding for the AEC for being used sensor During button, AEC select button 151g interacts operation, and also on the AEC select button 151g that window 151 is set reflection and Show and select.

On the contrary, ought be input into using the AEC select button 151g arranged on window 151 as shown in Figure 38 passing to AEC During the selection of sensor, multiple AEC pick up button 153a-1,153b-1 and 153c-1 interact operation, and also multiple Reflect in AEC pick up button 153a-2,153b-2 and 153c-2 and show and select.

When input is to the selection of AEC sensor, can be by changing AEC sensor corresponding with selected AEC sensor The color of button, will be dimmed for its edge or brighten, make AEC pick up button flicker etc. projecting the AEC pick up button, with anti- Reflect and have selected for corresponding AEC sensor.Alternatively, can be by solid line and dotted line by selected AEC sensor and not AEC sensor is selected to be distinguished from each other out.Alternatively, text " ON/OFF " can be shown in AEC pick up button, and works as When have selected the AEC pick up button with "ON", text can become "Off" from "ON".Pass when have selected the AEC with "Off" During sensor button, text can become "ON" from "Off".

In addition, when the check box above AEC select button 151g is selected, this multiple AEC sensor can be opened or closed.

When x-ray imaging is executed, selected AEC sensor can be opened, and when x-ray imaging is executed, can be closed Close unselected AEC sensor.However, it is possible to reverse.

When the AEC rotary knob shown in the AEC pick up button shown on camera image 152 and setting window 151 151g as mentioned above operation interactively with each other when, user can more intuitively recognize he or she oneself position of AEC sensor for selecting.

Further, since X-ray detector 200 is blocked by object 1 during x-ray imaging, therefore user can not be direct The position of identification AEC sensor.According to exemplary embodiments mentioned above, display unit 150 can show in 152 top of camera image AEC pick up button, so as to allow users to intuitively and easily recognize the pass between practical object and the position of AEC sensor System.

Additionally, when the width in X-ray radiation region adjusted as described above, the X-ray after adjusting can be being considered AEC sensor is selected in the case of the width of radiation areas.For example, when the width in X-ray radiation region is narrowed, only can select Some in AEC sensor.

Alternatively, control unit 140 can also be based in the size of each in multiple zonings or zoning The X-ray radiation region of each size automatically selecting AEC sensor.For example, control unit 140 can avoid selecting to arrange In X-ray radiation region exterior or unnecessary AEC sensor.Even if control unit 140 have selected AEC sensor, control AEC pick up button in AEC select button 151g and camera image 152 that unit 140 also can show on window 151 is arranged Which AEC sensor upper display have selected.For example, control unit 140 can be by image procossing (such as, contour detecting or edge Detection) come the AEC sensor that detects the profile of the object 1 in camera image 152 or edge and close outside the object 1.

If the AEC sensor being not turned off outside object 1, AEC sensor can be directly received and be not passed through object 1 X-ray.This causes the amount of x-ray that AEC sensor is received to quickly exceed scheduled volume.In this case, as radiation is in object 1 On x-ray dose not enough, cause the quality of radioscopic image reduce.

Therefore, control unit 140 can prevent radioscopic image by closing the AEC sensor being arranged on outside object 1 Quality reduces.

When complete for the X-ray radiation region of each in multiple zonings and X-ray radiation condition setting simultaneously And when selecting exposure button 151l, x-ray imaging equipment 100 can automatically control the position of x-ray source 110 and X-ray detector 200 Put to execute joining image-forming.Hereinafter, reference picture 39A to Figure 39 C is described to this.

Figure 39 A to Figure 39 C is the inclination angle with the x-ray source in the x-ray imaging equipment by control according to embodiment The view of the situation correlation for spending to execute joining image-forming.In this embodiment, it is given by and X-ray detector 200 is installed The situation of capture is executed on support 20 as an example.

Before operation x-ray imaging equipment 100, calibration is can perform, to calculate the camera obtained by capturing unit 120 Position relationship between image and radioscopic image.

For example, when splicing regions S are divided into three region S₁、S₂And S₃When, control unit 140 is based on previous calibration knot Really, calculating the first zoning of X-ray radiation S₁Corresponding primary importance or the first angle of inclination, use X-ray radiation second Zoning S₂The corresponding second place or the second angle of inclination and with the 3rd zoning S of X-ray radiation₃Corresponding 3rd Position or the 3rd angle of inclination.

Before joining image-forming is executed, it may be assumed that x-ray source 100 is moved into the position corresponding to X-ray detector 200 Put.For example, when there is both support 20 and stage body 10 in inspection chamber and user has selected for support 20, control unit 140 x-ray source 110 can be moved to the position corresponding to support 20.Position corresponding to the x-ray source 110 of support 20 can quilt Prestore.

Alternatively, x-ray source 100 also manually can be moved to the position corresponding to support 20 by user.

Can by the angle of inclination of x-ray source 110 be adjusted to as shown in Figure 39 A corresponding to the first zoning S₁Angle The angle of inclination of x-ray source 110 can be adjusted to corresponding to as shown in Figure 39 B to capture the first division radioscopic image by degree Second zoning S₂Angle to capture the second division radioscopic image, and the angle of inclination of x-ray source 110 can be adjusted Become as shown in Figure 39 C corresponding to the 3rd zoning S₃Angle to catch division radioscopic image of winning the third place.Here, X-ray Source 110 can be highly fixing apart from ground.

Control unit 140 can send control signals to the motor at the angle of inclination for adjusting x-ray source 110, by X-ray The angle of inclination in source 110 is adjusted to the angle corresponding to each in zoning.

In addition, control unit 140 can control collimator 113 with corresponding to the first zoning, the second zoning and the The size in the X-ray radiation region of three zonings.For example, when splicing regions are divided into uniform-dimension and zoning When highly identical, the position of the second blade 113b and quaterfoil 113d can be fixing, and the width when zoning Or the width in X-ray radiation region is when being configured to different, the first blade 113a and third blade 113c is also can control Position.

When the width extending in X-ray radiation region exceedes default value, the first blade 113a can be moved up in+x-axis side, Third blade 113c can be moved up in-x-axis side.

In addition, when the X-ray radiation condition of the first zoning, the second zoning and the 3rd zoning is configured to When different, can control x-ray source 110 or X-ray detector 200 so as to corresponding to when each zoning is captured The radiation condition of setting.

In another example, the height of x-ray source 110 can be also adjusted to corresponding to the first zoning S₁Height Radioscopic image is divided with capture first, is adjusted to corresponding to the second zoning S₂Height to capture the second division X-ray Image, and be adjusted to corresponding to the 3rd zoning S₃Height to catch division radioscopic image of winning the third place.Here, X-ray The angle of inclination in source 110 can be fixing.

In another example, height and the angle of inclination of x-ray source 110 can be also adjusted simultaneously.

In the two examples, X-ray detector 200 moves to the position corresponding to each zoning.In order to move X Ray detector 200, control unit 140 can move to the installation unit 24 for being provided with X-ray detector 200 corresponding to each The position of zoning.

When each zoning is specified, control unit 140 can calculate the physical location of X-ray detector 200, will refer to The center of fixed zoning is mated with the center of X-ray detector 200.In addition, as with regard to, described in Figure 11 to Figure 15, holding Row alignment x-ray source 110 and X-ray detector 200.

Meanwhile, for joining image-forming, due to capturing the multiple X ray pictures for becoming an image by being stitched together respectively Picture, therefore when object is moved between each that execution is divided in the time point of picture, the picture quality of radioscopic image is bad Change.Therefore, when joining image-forming is executed, it is necessary to executing between each being divided in the time point of picture, the taking of control object To.Hereinafter, will be described in detail.

Figure 40 is the view of the operation of the movement for being shown with camera image to determine object, and Figure 41 and Figure 42 is to be shown in Be partially completed be divided into as while execute the view that is controlled in the case of reimaging after joining image-forming is stopped.

Even if just execute be divided into picture when, capturing unit 120 can also capture camera image, and the camera figure for being captured As control unit 140 can be sent in real time.In addition, the camera image for being captured can show in real time on display unit 150.

In addition, the camera image for being captured can be stored in memory cell 170.In this case, can store always The camera image for being stored, until user input leaves out order, and ought pass by the time of predetermined amount or exceed pre- If during memory capacity, oldest image can be left out automatically.

As shown in Figure 40, control unit 140 can be by camera corresponding with the previous time point for dividing radioscopic image is captured Image 152' is compared with current camera image 152, to detect the movement of the object illustrated in the two images.Show at this In example, previous division radioscopic image is the second division radioscopic image, and currently image to be captured is the 3rd division radioscopic image.

For example, can be by analyzing the distance between the two images d come the movement of detection object.Can be by the ought be executed Two be divided into as when camera image in shown in the orientation of object and current camera image in the orientation of object that illustrates compared Relatively detecting movement.

When the movement for detecting has the value equal to or more than preset reference value, it may be determined that, even if drawing when catching to win the third place When dividing radioscopic image, can not also mate the first division radioscopic image and second and divide radioscopic image.Therefore, control unit 140 Visually or audibly can alert is the situation that can not mate or is automatically stopped joining image-forming.

When the movement of object as described above has equal to or more than the value of reference value or the conditional instability of object or place When critical, be partially completed be divided into picture while, can stop imaging.

For example, as shown in Figure 41, radioscopic image X is divided in capture first₁Radioscopic image X is divided with second₂Afterwards, Can be to the 3rd zoning S₃Stop imaging before executing x-ray imaging.Although illustrating that the first division X is penetrated in this illustration Line image X₁Radioscopic image X is divided with second₂It is stitched together and is produced the first zoning and the second dividing regions in advance The image X being stitched together in domain₁₂, but after obtaining the 3rd and dividing radioscopic image, also disposably the first division X can be penetrated Line image X₁, second divide radioscopic image X₂With the 3rd zoning S₃It is stitched together.

First divides radioscopic image X₁Radioscopic image X is divided with second₂And picture or second stroke is divided into carrying out first The camera image captured during being divided into picture can be stored together in memory cell 170.Zoning with regard to joining image-forming Information is alternatively can be stored in camera image.Identification label can be stored together so that when joining image-forming is subsequently restarted, Can load stored division radioscopic image or camera image, and recognize that label may include can be by the information of learning classification. Can by the information of learning classification can be object oriented, date/capture time, imaging protocol and combinations thereof or with above nothing One in the information by user setup that closes.

When same joining image-forming is restarted after joining image-forming is stopped, control unit 140 can search for and add Carry the camera image stored in memory cell 170.For this purpose, user can be input into current will be corresponding for the joining image-forming for restarting Identification label.

As shown in Figure 42, current camera image is can be displayed on display unit 150, and is loaded from memory cell 170 Camera image (that is, before execution one be divided into picture time point capture camera image) can be by overlapping Current camera figure Shown on picture.

According to this example, carry out second be divided into picture during the camera image 152' that captures can be by overlapping current phase Shown on machine image, user can refer to the camera image of overlap to instruct the orientation of object.Due to the two images each other Overlap, therefore user can recognize the difference between the orientation of the object illustrated in the two images exactly and instruct object Current be orientated, with coupling carry out second be divided into picture during to image orientation.

When made according to the guidance of user the orientation of object with previous be divided into picture during the orientation of object mate when, i.e. When the orientation of the object during the current orientation of object is divided into picture with second is mated, the executable 3rd is divided into picture.Here, User can with the naked eye determine or determine the orientation of object by control unit 140 according to the mobile standard of above-mentioned detection No coupling.For example, the object outline coupling in the object outline and current camera image 152 in previous camera image 152' is worked as When, it may be determined that orientation is coupling.Furthermore it is possible to visually or audibly export previous be divided into picture during orientation with current The fact that orientation coupling so that user may be selected exposure button, or can also execute automatically division orientation by control unit 140.

When execution the 3rd is divided into picture, the 3rd division radioscopic image X can be obtained₃.Control unit 140 can load store The first division radioscopic image X in memory cell 170₁Radioscopic image X is divided with second₂Or the two radioscopic image splicings The image X being stitched together together₁₂Radioscopic image X is divided to execute with the 3rd₃Splicing, produce whole splicing The image X being stitched together of region S₁₂₃.

Alternatively, even if in the case of stopping and restarting except in the case of joining image-forming, can also pass through To carry out previous be divided into picture during the camera image orientation that overlaps on current camera image to instruct object that obtains.

For example, when the big amount of movement due to patient as above causes to execute subsequent divided imaging, can By by carry out previous be divided into picture during obtain camera image 152' overlap on current camera image 152, instruct object Orientation.

Hereinafter, the method for description being controlled the x-ray imaging equipment according to embodiment.

Above-mentioned x-ray imaging equipment 100 can be used to control in the method according to the x-ray imaging equipment of embodiment.Therefore, Description given above can also be equally applicable to the method for controlling x-ray imaging equipment.

Figure 43 is the checking X-ray radiation being shown in the method for control according to the x-ray imaging equipment of embodiment The flow chart of the example of the method in region.

With reference to Figure 43, control unit 140 is shown in display list to produce using the coordinate information of x-ray imaging equipment 100 X-ray radiation window (410) in unit 150.Control unit 140 can be using the coordinate of the x-ray imaging equipment 100 for prestoring Information is obtaining the information of the positions and dimensions with regard to X-ray radiation window.

Control unit 140 may include to prestore with regard to distance between x-ray source 110 and X-ray detector 200, by Collimator 113 formed by by the form of the slot R of X-ray radiation and area, from X-ray tube 111 to the distance of slot R etc. Multiple information, or above multiple information can be calculated with the information for prestoring.

Control unit 140 can calculate the X-ray radiation formed at X-ray detector 200 using multiple information above The three-dimensional coordinate of region E.The three-dimensional coordinate of the X-ray radiation region E that control unit 140 is calculated is set corresponding to x-ray imaging The coordinate that the world coordinates in space residing for standby 100 is fastened.

As X-ray radiation window B1 is shown simultaneously on the camera image acquired in capturing unit 120 by overlapping And be the therefore control unit based on two-dimensional coordinate system by overlapping the X-ray radiation window B1 shown on camera image 140 must be converted into the information of the three-dimensional coordinate of X-ray radiation region E with regard to calculating based on two dimensional image coordinate system Coordinate.

Further, since capturing unit 120 is different with the coordinate of global coordinate system, therefore global coordinate system must be converted into The information of the three-dimensional coordinate with regard to X-ray radiation region E is converted into the seat based on two dimensional image coordinate system by camera coordinates system Mark.That is, global coordinate system must be converted into camera coordinates system, and with regard to being converted into based on camera coordinates system The information of the three-dimensional coordinate of coordinate must be converted into the coordinate based on two dimensional image coordinate system.

Control unit 140 can be single by X-ray radiation window B1 is overlapped display using the two-dimensional coordinate for as above obtaining Show X-ray radiation window B1 on camera image in unit 150.

In addition, control unit 140 is executed to the image of light radiation region L of the collimator 113 acquired in capturing unit 120 Image procossing, to produce X-ray radiation window B2 (411) shown on display unit 150.

As described above, X-ray radiation window B1 can be shown on display unit 150 using coordinate information, or can pass through The border of light radiation region L illustrated in the camera image that image procossing extracts acquired in capturing unit 120, so as to show that X penetrates Beta radiation window B2.

The X-ray radiation window produced as the X-ray radiation window B1 produced using coordinate information and by image procossing When B2 mismatches ("No" in 412), control unit 140 executes calibration (413).

X-ray imaging equipment 100 according to disclosed embodiment experiences will by the lamp and reflector by adjusting collimator Light radiation region and the actual X-ray radiation region calibration process that is mated and the camera parameter for determining capturing unit 120 (such as, principal point, focal length, setting angle etc.) so that the X-ray radiation window shown on display unit 150 can represent exactly Actual X-ray radiation region E.

When there is not mistake in calibration process, the X-ray radiation window that produced using coordinate information and by figure Match each other as processing the X-ray radiation window for producing.Therefore, when X-ray radiation window and X-ray radiation window each other not Timing, it may be determined that occur in that mistake in above-mentioned calibration process.

Therefore, control unit 140 executes following process：By executing the X-ray radiation window produced using coordinate information Mouth B1 is compared with the X-ray radiation window B2 produced by image procossing to understand fully both process that whether mates, and is tested Whether card occurs in that mistake in above-mentioned calibration process.

As inconsistent between the X-ray radiation window that produced using above two method is meaned in calibration process Mistake is occurred in that, therefore by display unit 150, control unit 140 can show that request executes message of calibration etc..User Ke Cha See the message and re-execute above-mentioned calibration process.

In addition, control unit 140 can be mismatched each other in the X-ray radiation window produced using above two method When, inconsistent degree is calculated, to calculate for inconsistent calibration parameter is solved, rather than shows that request executes disappearing for calibration Breath.Control unit 140 can calculate the focal length and principal point for solving inconsistent required capturing unit 120 based on inconsistent information, And variable global coordinate system being converted into needed for camera coordinates system can be calculated.In addition, in the disclosed embodiment, due to Difference between the focus of the focus of capturing unit 120 and X-ray tube 111, causes deviation occurs.Control unit 140 can make The parameter needed for the compensation deviation is calculated with inconsistent information.Control unit 140 can using the parameter that is calculated as above from Dynamic execution is calibrated or shows the parameter for calculating to aid in user to execute calibration by display unit 150.

Figure 44 is to be shown in penetrating x-ray source and X in the method for control according to the x-ray imaging equipment of embodiment The flow chart of the example of thread detector method aligned with each other.

As shown in Figure 44, control unit 140 shows that on display unit 150 border of X-ray detector 200 and X are penetrated Beta radiation region (421).

Control unit 140 extracts X-ray radiation by the method for above-mentioned use coordinate information or by image procossing The border in region produces X-ray radiation window B3 to show the method in X-ray radiation region, and can be by will be produced X-ray radiation window B3 overlaps on camera image 152 to show produced X-ray radiation window B3.

In addition, control unit 140 by the above-mentioned method using coordinate information or can be extracted X by image procossing and penetrate To produce, the border of beta radiation detector 200 represents that X-ray is detected to show the method on the border of X-ray radiation detector 200 The detector boundary line B4 on the border of device 200, and can be by produced detector boundary line B4 is overlapped capturing unit Detector boundary line B4 produced by showing on the camera image 152 that 120 are captured.

Can be led to by overlapping the X-ray radiation window B3 shown on camera image 152 and detector boundary line B4 Cross using different colours or be distinguished from each other out using dotted line and solid line.

Control unit 140 determines whether the center of detector boundary line B4 and the center of X-ray radiation window B3 mate (422), and when both mismatch ("No" in 422) when, the center based on detector boundary line B4 and X-ray radiation window Inconsistent degree between the center of mouthful B3 is calculating the displacement (423) of x-ray source 110 and X-ray detector 200.Separately Outward, displacement can be calculated together, and control unit 140 is moved according to the displacement for calculating and moving direction and right Quasi- x-ray source 110 and X-ray detector 200 (424).

Between between four summits of four summits for forming X-ray radiation window B3 and formation detector boundary line B4 When matching each other completely, control unit 140 can determine that X-ray detector 200 and x-ray source 110 aligned with each other.

Alternatively, when the center of detector boundary line B4 and the center of X-ray radiation window B3 are mated (in 422 "Yes") when, control unit 140 can determine that X-ray detector 200 and x-ray source 110 aligned with each other.

Between between four summits of four summits for forming X-ray radiation window B3 and formation detector boundary line B4 When the center of the center of different or X-ray radiation window B3 and detector boundary line B4 mismatches, control unit 140 Can determine that X-ray detector 200 and the misalignment each other of x-ray source 110.In this case, control unit 140 can calculate X and penetrate Between between four summits of four summits of beta radiation window B3 and the detector boundary line for corresponding respectively to this four summits Every g2, g3, g4 and g5 and calculate the x-ray source 110 for making the interval for calculating match each other or X-ray detector 200 Displacement and moving direction.Control unit 140 can pass through based on the x-ray source 110 being calculated as above or X-ray detector 200 displacement and moving direction mobile x-ray source 110 or X-ray detector 200 are mating interval.Alternatively, control Unit processed 140 can also show the displacement of the x-ray source 110 for calculating or X-ray detector 200 by display unit 150 And moving direction, to instruct user's mobile x-ray source 110 or X-ray detector 200.

Alternatively, control unit 140 can be calculated in the center and detector boundary line B4 of X-ray radiation window B3 Interval g1 between the heart, and the center with X-ray radiation window B3 and detector border can be calculated based on the interval for calculating The x-ray source 110 of center coupling of line B4 or moving direction and the displacement of X-ray detector 200.Control unit 140 can By the moving direction based on the x-ray source 110 being calculated as above or X-ray detector 200 and displacement mobile x-ray source 110 or X-ray detector 200 come the center of matching X-ray radiation window B3 and the center of detector boundary line B4.Accordingly, control Unit processed 140 can mate the center in actual X-ray radiation region and the center of X-ray detector 200.Alternatively, control Unit 140 can also by display unit 150 show the x-ray source 110 that calculate or X-ray detector 200 moving direction and Displacement, to instruct user's mobile x-ray source 110 or X-ray detector 200.

When the center of detector boundary line B4 and the center of X-ray radiation window B3 are mated, control unit 140 is received to be adjusted The regulating command (425) in section X-ray radiation region, and when a part of offset from detectors boundary line B4 occurs in display unit In the X-ray radiation window B3 shown on 150 when ("Yes" in 426), control unit 140 shows offset from detectors boundary line B4 This part (427).

When x-ray source 110 and X-ray detector 200 aligned with each other when, user can be predetermined by the input of input block 160 Operational order, to adjust position, size or the form of X-ray radiation window B3.

When user adjusts X-ray radiation window B3, X-ray radiation window B3 can offset from detectors boundary line B4.When inclined From the border of X-ray detector 200 region also by X-ray radiation when, it may appear that unnecessary excess X-radiation exposes.Therefore, As X-ray radiation window B3 offset from detectors boundary line B4, control unit 140 can be by showing deviation detection with different colours The region B3-2 of device boundary line B4 informs user with the region B3-1 being present in the B4 of detector boundary line, excessive to prevent X-ray exposes.For example, can to will appear in region in the B4 of detector boundary line shown in green and will be partially for control unit 140 Region from detector boundary line B4 is shown in red, to inform that user's X-ray radiation window deviate from X-ray detector 200 Border.Alternatively, it is also possible to use dotted line and solid line is substituted and provided using different colours with regard to deviateing X-ray detector The notice in the region on 200 border.

X-ray radiation window is informed using different colours or dotted line and solid line and deviate from the side of X-ray detector 200 Boundary is only example, also using sound or the vibration of input block 160.That is, being set according to disclosed x-ray imaging Using the various methods of view-based access control model, the sense of hearing or haptic stimulus, standby 100 can inform that the X shown on user's display unit 150 is penetrated Beta radiation window deviate from the border of X-ray detector 200.

Figure 45 is the side with the setting imaging protocol in the method for control according to the x-ray imaging equipment of embodiment The related flow chart of method.

With reference to Figure 45, for each default imaging region (430) in multiple imaging protocols.Can be set according to user input Put imaging region.For this purpose, display unit 150 can show that imaging protocol arranges window 154.Imaging protocol arranges window 154 and can wrap Include protocol list 154c.

User can select from protocol list 154c to expect becoming by its imaging region of user setup using input block 160 As agreement.In order to the setting of imaging region is received, can show on display unit 150 that there is the shape approximate with object shapes Object model 154b, and user can adjust the positions and dimensions of the imaging window 154a shown on object model 154b, to set Put the imaging region of selected imaging protocol.It is single that the imaging region arranged for each in imaging protocol is stored in storage In unit 170.

Then, before x-ray imaging is executed, camera image (431) is captured using capturing unit 120.For imaging association For each in view, between x-ray imaging and imaging region, existence time is poor.

Select imaging protocol (432).Imaging protocol can be selected by user input.

Search for the imaging region (433) that mapping is set up with selected imaging protocol.Can be searched for by control unit 140 Imaging region.For example, when selected imaging protocol is chest PA, what search foundation in chest PA mapped and stored becomes As region.

Imaging region (434) is extracted from camera image.For example, control unit 140 can be by applying such as Object identifying The image procossing of algorithm, extracts imaging region from camera image 152.For example, rim detection can be applied to camera image 152, With the profile of extracting object or form and detect some features needed for recognition imaging region (such as, from head to toe Length (highly), head or the width of shoulder and the length of leg).

X-ray bombardment imaging region is used, to execute x-ray imaging (435).When by control unit 140 from camera image When extracting imaging region in 152, control unit 140 can control collimator 113, make X-ray radiation region E corresponding to imaging area Domain.When x-ray source 110 or X-ray detector 200 should be moved, x-ray source 110 or X-ray detector 200 are movable to Position corresponding to imaging region.In addition, being imaged not overlayable scope when imaging region has by executing single X-ray When, imaging region can be divided and can perform joining image-forming.

Figure 46 is and seeming no being divided into for the determination in method of the control according to the x-ray imaging equipment of embodiment The flow chart of the method correlation for being moved according to object and stopping.In this illustration, joining image-forming is executed, and by splicing regions It is divided into the first zoning, the second zoning and the 3rd zoning.

With reference to Figure 46, camera image (440) is captured using capturing unit 120.Capturing unit 120 can capture in real time video or Person captures video always until completing x-ray imaging.

Execute first to be divided into as (441).For this purpose, can control position or the angle of inclination of x-ray source 110 so as to become Position or angle corresponding to the first zoning, and can control X-ray detector 200 position so as to become corresponding to The position of the first zoning.

The movement (442) of detection object.Specifically, control unit 140 can be by the object illustrated in current camera image Be orientated with carry out first be divided into as during in camera image shown in the orientation of object be compared, to detect movement.

When the movement for detecting has value ("Yes" in 443) equal to or more than preset reference value, it may be determined that, even if Execution is divided into and divides radioscopic image as can not also mate the first division radioscopic image and second, and can stop imaging.

When the movement for detecting is not equal to or more than value ("No" in 443) of preset reference value, second stroke is executed It is divided into as (444).

The movement (445) of detection object.Control unit 140 can by the orientation of the object illustrated in current camera image with enter Row second be divided into as during in camera image shown in the orientation of object be compared, to detect movement.

When the movement for detecting has value ("Yes" in 446) equal to or more than preset reference value, it may be determined that, even if Execution is divided into and divides radioscopic image as can not also mate the second division radioscopic image and the 3rd, and can stop imaging.

When the movement for detecting is not equal to or more than value ("No" in 446) of preset reference value, the 3rd stroke is executed It is divided into as (447).

Alternatively, the orientation of user guided object can be guided to user's output warning, rather than stops capture.

When completing the 3rd and being divided into picture, first can be divided radioscopic image, second divide radioscopic image and the 3rd stroke Divide radioscopic image to be stitched together, produce an image being stitched together.

Figure 47 be with for restarting joining image-forming in method of the control according to the x-ray imaging equipment of embodiment The related flow chart of situation.

As described above, when object movement have equal to or more than reference value value, or object conditional instability or In critical when, be partially completed be divided into picture while, can stop imaging.

When joining image-forming stops, the division radioscopic image that captured and capturing while execution is divided into picture Camera image can be stored in memory cell 170.Information with regard to the zoning of joining image-forming alternatively can be stored in phase In machine image.

In addition, when joining image-forming is subsequently restarted (450), control unit 140 can search for and load store unit The camera image of mapping and storage is set up in 170 for restarting joining image-forming.

Display unit 150 can show previous camera image by allowing previous camera image to overlap current camera image (451).User can refer to the camera image of overlap to instruct the orientation of object.As the two images overlap each other, therefore use Family can recognize the difference between the orientation of the object illustrated in the two images exactly and instruct the current orientation of object, with With carry out second be divided into picture during image orientation is mated.

Figure 48 is the side with the control overlapping region in the method for control according to the x-ray imaging equipment of embodiment The related flow chart of method.

With reference to Figure 48, it is intended that wherein will execute the splicing regions (460) of joining image-forming.Splicing regions can be direct by user It is input into specify or can be specified by selecting imaging protocol automatically.That is, corresponding with selected imaging protocol Imaging region can be designated as splicing regions.

Divide splicing regions (461).For example, be able to will detect in the size for considering splicing regions and X-ray detector 200 Region size in the case of, splicing regions are divided into uniform-dimension.

Determine overlapping region whether in radiation-sensitive portion (462).Can also be determined by application recognizer Whether overlapping region is in radiation-sensitive portion.For example, the central part office in the length from head to toe and conduct A part for thigh starting can be determined to be the part residing for genitals, separate downwards 20cm or less with armpit part or shoulder A part can be determined to be the part residing for heart.It is single that the information related to radiation-sensitive portion can be pre-stored in storage Unit 70 in or can be also added by user or change.

When overlapping region is in radiation-sensitive portion ("Yes" in 462), overlapping region (463) is can adjust.Can be by controlling Unit processed 140 or the input according to user, automatically adjust overlapping region.In the previous case, control unit 140 can adjust The border of corresponding zoning so that radiation-sensitive portion can be avoided in overlapping region.In the case of the latter, can be in display unit Show the position of radiation-sensitive portion on 150, to instruct user to be input into.

Figure 49 is the side with the default object size in the method for control according to the x-ray imaging equipment of embodiment The related flow chart of method.

With reference to Figure 49, the size (470) of setting and storage object.For example, display unit 150 can show that object size sets Put window 156.Specifically, display unit 150 can show object model 154b, and user can be incited somebody to action using input block 160 Object size is classified.In specific example, may specify the length of height, the height of shoulder and leg and be mapped as specific chi Very little.Highly, the length of the height of shoulder and leg can also be designated as particular value and also can be designated as preset range.By user The object size of classification can be stored in object size DB, and object size DB can be stored in memory cell 170.To the greatest extent The size of pipe object can be classified as large, medium and small, children, baby etc., but the embodiment not limited to this of x-ray imaging equipment 100 And size can also be subdivided or conclude.

X-ray radiation condition is set for each in multiple object size and is stored (471).For example, can be Showing on display unit 150 can be by the setting window 151 of its setting X-ray radiation condition.User can be in object size Each arrange X-ray radiation condition.The X-ray radiation condition that can be arranged may include tube voltage, tube current and time for exposure, and And may also include and execute the position (for executing support and the stage body of x-ray imaging) of x-ray imaging, collimator size, AEC and pass The position of sensor, sensitivity, density and grating.The X-ray radiation condition arranged for each in object size can be stored In memory cell 170.

After object size and X-ray radiation condition is arranged, when in order to carry out x-ray imaging object be arranged on X penetrating During 200 front of thread detector, capturing unit 120 can capture camera image.In addition, control unit 140 analyzes camera image with true Determine the size (472) of object.For example, control unit 140 can to camera image application rim detection with the profile of extracting object simultaneously And the big of object is estimated in the case of the size of the profile of the object that can be also illustrated in camera image is considered, SID or SOD Cause size.

Search for the X-ray radiation condition (473) corresponding to object size.Then, according to the X-ray radiation condition for finding come Control x-ray source (474).In addition, when the X-ray radiation condition corresponding to object size storage includes and X-ray detector 200 During the condition of correlation, X-ray detector 200 is also can control certainly.

Some in operation in above-mentioned x-ray imaging equipment and its control method can be by as program storage in computer In readable medium recording program performing.Recording medium can be such as the magnetic recording medium of read-only storage (ROM), floppy disk and hard disk or Person's such as compact disk (CD)-ROM and the optical record medium of digital universal disc (DVD).However, the type of recording medium is not limited to Above example.

Recording medium can be included in the server for providing application or program, and work station, sub- display device or shifting Dynamic device can carry out access server by the communication protocol of such as internet, to download corresponding program.

For example, when above-mentioned display unit 150 and input block 160 are included in the mobile device, under mobile device After load, installation and configuration processor, above-mentioned picture can be shown on display unit 150.

The step of executing some in the operation of above-mentioned control unit 140 can be included in a program.In this case, Mobile device can generate control command and control command is sent to x-ray imaging equipment 100.

Alternatively, the information related to the control command of user input can be sent to x-ray imaging by mobile device Equipment 100, and control unit 140 can control x-ray imaging equipment 100 according to the control command of user input.

According to the x-ray imaging equipment according to one side and its control method, can be arranged using camera image and penetrate including X The various types of parameters related to x-ray imaging in beta radiation region and x-ray imaging can be automatically controlled.

Above description is only the illustrative description of the technical spirit of the disclosure, the ordinary skill of disclosure art Personnel should be able to carry out various modifications, change and replacement in the range of without departing from disclosure inner characteristic.Therefore, above public affairs The embodiment that opens and accompanying drawing are for description and the technical spirit of the unrestricted disclosure, and the scope of technical spirit is not implemented Example and accompanying drawing are limited.The scope should be explained by claims below, and in claims equivalency range All technical spirits should be interpreted as belonging to the scope of the present disclosure.

Claims

1. a kind of x-ray imaging equipment, including：

Imaging device, is configured to capture the camera image of target；

X-ray source, with the collimator for being arranged on the x-ray source and be configured to adjust X-ray radiation region；

Memory cell, is configured to accordingly map and store x-ray imaging region with x-ray imaging agreement；

Input block, is configured to receive the selection to one of multiple x-ray imaging agreements；And

Control unit, is configured to have been mapped to selected x-ray imaging agreement from the camera image extraction of target Target X-ray imaging region, and control collimator to adjust X-ray radiation region with corresponding to the x-ray imaging region that extracts.

2. x-ray imaging equipment according to claim 1, wherein, input block be configured to receive from user and with institute State the related choosing in the accordingly mapped x-ray imaging region of each x-ray imaging agreement in multiple x-ray imaging agreements Select.

3. x-ray imaging equipment according to claim 2, also includes：Display, the shape being display configured to target The Drawing Object of shape to receive and the selection related to one of the plurality of x-ray imaging agreement corresponding x-ray imaging region, And by the imaging window in specified x-ray imaging region being overlapped on Drawing Object show imaging window.

4. x-ray imaging equipment according to claim 3, wherein, via input block adjust imaging window position and At least one of size of imaging window,

Control unit be configured to by with regulation after imaging window position and adjust after imaging window size in A few corresponding region is stored in storage as with one of the plurality of x-ray imaging agreement corresponding x-ray imaging region In unit.

5. x-ray imaging equipment according to claim 1, also includes：

Display, be configured to by the x-ray imaging region of extraction overlap on camera image show camera image and The x-ray imaging region of extraction.

6. x-ray imaging equipment according to claim 5, wherein, display is display configured to for receiving to described The protocol list of the selection of one of multiple x-ray imaging agreements, and pass through input block in response to camera image display command It is transfused to display camera image.

7. x-ray imaging equipment according to claim 2, wherein：

Input block is configured to receive the setting to the X-ray radiation condition for the plurality of x-ray imaging agreement；And

The X that memory cell is configured to map and store for the plurality of x-ray imaging agreement based on the setting for receiving is penetrated Beta radiation condition.

8. x-ray imaging equipment according to claim 7, wherein, when one of the plurality of x-ray imaging agreement is chosen When, controller is configured to apply the corresponding X-ray radiation condition for being mapped to selected x-ray imaging agreement to hold Row x-ray imaging.

9. a kind of method for controlling x-ray imaging equipment, methods described include：

Map and store x-ray imaging region corresponding with multiple x-ray imaging agreements；

Receive the selection to one of the plurality of x-ray imaging agreement；

The x-ray imaging region of the target for having been mapped to selected x-ray imaging agreement is extracted from camera image；And

Control collimator adjusts X-ray radiation region with the x-ray imaging region corresponding to the target that extracts.

10. method according to claim 9, wherein, includes the step of map and store x-ray imaging region：

Receive from user and the X accordingly mapped with each the x-ray imaging agreement in the plurality of x-ray imaging agreement is penetrated The related selection in line imaging region；And

According to the input for selecting, X is mapped and stores for each the x-ray imaging agreement in the plurality of x-ray imaging agreement Radial imaging region.

11. methods according to claim 10, wherein, also include the step of map and store x-ray imaging region：

Show Drawing Object, wherein, the Drawing Object has the shape of target and is configured to receive and is directed to the plurality of X The related selection in the x-ray imaging region of one of radial imaging agreement；And

By the imaging window in specified x-ray imaging region being overlapped on Drawing Object show imaging window.

12. methods according to claim 11, wherein, also include the step of map and store x-ray imaging region：

Adjust at least one of the position of imaging window and the size of imaging window；

Using with least one of the size of position and imaging window of the imaging window after regulation corresponding region as being directed to The x-ray imaging region of one of the plurality of x-ray imaging agreement stores in the memory unit.

13. methods according to claim 9, also include：By the x-ray imaging region of extraction is overlapped camera image The camera image of display target of coming up and the x-ray imaging region that extracts.

14. methods according to claim 13, also include：

Show the protocol list for receiving the selection to one of the plurality of x-ray imaging agreement,

Wherein, it is transfused in response to camera image display command, shows camera image.

15. methods according to claim 10, also include：

Receive the setting to the X-ray radiation condition for the plurality of x-ray imaging agreement；And

Based on the setting for receiving, the X-ray radiation condition for the plurality of x-ray imaging agreement is mapped and stores.