KR101947479B1 - X-ray photographing apparatus and method - Google Patents

Abstract

The present invention relates to an X-ray photographing apparatus and a photographing method using the same, and an X-ray photographing apparatus according to the present invention includes a generator unit for generating an X-ray; A sensor unit collecting the generated X-rays and having at least a part of a curved surface covering an object; And a control unit for controlling the photographing by the sensor unit having the first active area and determining an additional photographing area of the subject through analysis of the first photographing image generated by the photographing, And a control section for adjusting an area or an X-ray irradiating area, and controlling the photographing by the sensor section having a second active area according to the additional photographing area, wherein the second active area is a part of the first active area, And combining the first captured image and the second captured image generated by the second active area to generate an image. According to the present invention, by using the photographed x-ray image, it is possible to clearly recognize the part of the object to be photographed by the object other than the object to be photographed and to perform additional photographing to generate a clearer image .

Description

X-ray photographing apparatus and method

The present invention relates to an X-ray photographing apparatus and a photographing method using the same.

X-ray imaging devices, which are widely used in the medical technology field, irradiate the human body with x-rays and acquire images of the inside of the human body. It detects anomalies inside the human body.

The principle of the X-ray photographing apparatus is to irradiate X-rays generated from a generator which generates an X-ray to an object to be photographed, and receive the X-rays reaching the object through some or not through a sensor facing the generator. Next, the received X-ray is converted into an electrical signal to generate an image.

In this case, the X-rays to be irradiated are irradiated on the basis of an arbitrary focus. The X-ray photographing apparatus mainly aims at acquiring an image of the inside of the object to be photographed. In order to set the focus There is a difficulty.

Also, since the X-ray photographing apparatus generates an image according to the degree of transmission, the X-ray transmission amount to the same object may be varied depending on the photographing position and the photographing angle, which may cause a deviation in image quality.

In order to solve these problems, various methods for improving the quality of the x-ray image have been developed. In particular, in order to acquire a clearer image than the panoramic imaging method in which the alveolar bone including the teeth is generated as the two- A method of generating a panoramic image in consideration of the trajectory of the arch of the actual examiner has been developed.

Specifically, a device for photographing a panoramic image generates a panoramic image by rotating and moving a generator and a sensor facing each other in consideration of an arch path, and recombining the acquired partial images.

However, even if a partial image is photographed and reassembled considering the actual trajectory, the cervical spine for supporting the head of a human being can be superimposed on the image of the tooth according to the structure of the human body. At this time, there is a problem that the image of the tooth superimposed on the cervical vertebrae appears blurred compared with the portion not in the cervical vertebra.

Therefore, in order to solve such a problem, a method of differently photographing the cervical vertebrae (Korean Patent Laid-Open Publication No. 10-2005-0005703 (published on Jan. 13, 2005)) has been devised. However, A control operation is required and it is practically difficult to apply to a method of photographing a panoramic image in which photographing is continuously performed.

According to an aspect of the present invention, there is provided a method for enhancing the sharpness of an image of a portion of a subject that is overlaid by an object other than an object to be imaged.

It is another object of the present invention to provide a method for minimizing the exposure of radiation due to additional photographing by setting conditions for additional photographing for enhancing sharpness.

According to an aspect of the present invention, there is provided an X-ray photographing apparatus comprising: a generator unit for generating an X-ray; A sensor unit collecting the generated X-rays and having at least a part of a curved surface covering an object; And a control unit for controlling the photographing by the sensor unit having the first active area and determining an additional photographing area of the subject through analysis of the first photographing image generated by the photographing, And a control section for adjusting an area or an X-ray irradiating area, and controlling the photographing by the sensor section having a second active area according to the additional photographing area, wherein the second active area is a part of the first active area, And combining the first captured image and the second captured image generated by the second active area to generate an image.

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The control unit may determine an additional shooting region of the subject corresponding to a portion of the first region of interest that has a reduced sharpness.

And the control unit may determine an additional shooting area of the subject corresponding to a portion of the subject area over which the image of interest overlaps the area of interest of the first shot image.

Preferably, the sensor unit has a curved surface in accordance with the trajectory of the subject, and the control unit determines an additional shooting area of the subject corresponding to a portion where the image of the subject overlaps the trajectory.

Wherein the sensor unit has a curved surface corresponding to a trajectory of an arch of the subject and the control unit determines an additional shooting area of the subject corresponding to a part of the arch that overlaps the image of the cervical spine of the subject in accordance with the trajectory of the arch .

The X-ray imaging apparatus further includes a blade for adjusting the X-ray irradiation area.

Preferably, the generator unit includes a plurality of X-ray emitting elements, and the sensor unit includes a plurality of X-ray detecting elements, wherein the generator unit and the sensor unit are integrally formed on the curved surface.

And the X-ray emitting element and the X-ray detecting element are alternately arranged on the curved surface.

According to an aspect of the present invention, there is provided an X-ray imaging method comprising the steps of: collecting X-rays generated by a generator in a first active area of a sensor unit having at least a curved surface covering an object, ; Analyzing the generated first shot image to determine an additional shooting area of the subject; And controlling an X-ray generation region or an X-ray irradiation region of the generator unit according to the additional shooting region and controlling shooting by the sensor unit having a second active region according to the additional shooting region, The active region is a part of the first active region and may combine the first captured image and the second captured image generated by the second active region to produce an image.

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The determining step preferably determines an additional shooting area of the subject corresponding to a portion of the first area of interest that has a reduced sharpness.

And the determining step determines the additional shooting area of the subject corresponding to the portion of the subject area over which the image of the first area is superimposed.

Preferably, the sensor unit has a curved surface according to the trajectory of the subject, and the determining step determines an additional photographing area of the subject corresponding to a portion where the image of the subject overlaps the trajectory.

Wherein the sensor unit has a curved surface in accordance with the trajectory of the arch of the subject and the determining step includes a step of determining an additional shooting area of the subject corresponding to a part of the arch of the subject overlapping with the image of the cervical spine of the subject in accordance with the trajectory of the arch, .

According to an aspect of the present invention, there is provided a computer readable recording medium storing a program for performing an X-ray imaging method.

According to the present invention, by using the photographed x-ray image, it is possible to clearly recognize the part of the object to be photographed by the object other than the object to be photographed and to perform additional photographing to generate a clearer image .

In addition, it is possible to minimize the cost of processing the image according to the photographing time and the re-photographing by performing the photographing operation on the area requiring additional photographing.

In addition, the photographing is performed only for the area where additional photographing is required, so that the exposure of the radiation can be minimized.

1 is an exemplary view showing an X-ray photographing apparatus according to the prior art of the present invention.
2 is an exemplary view showing an X-ray imaging apparatus according to an embodiment of the present invention.
3 is a block diagram illustrating an X-ray imaging apparatus according to an embodiment of the present invention.
4 is an exemplary view showing an operation example of an X-ray imaging apparatus according to an embodiment of the present invention.
5 is an exemplary diagram illustrating a generator unit of an X-ray imaging apparatus according to an embodiment of the present invention.
6 is an exemplary view showing a sensor unit of an X-ray imaging apparatus according to an embodiment of the present invention.
6 to 8 are diagrams illustrating an operation of an X-ray imaging apparatus according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating a photographed image generated by an X-ray imaging apparatus according to an embodiment of the present invention.
8 to 10 are flowcharts illustrating an X-ray imaging method according to an embodiment of the present invention.

The following merely illustrates the principles of the invention. Therefore, those skilled in the art will be able to devise various apparatuses which, although not explicitly described or shown herein, embody the principles of the invention and are included in the concept and scope of the invention. It is also to be understood that all conditional terms and examples recited in this specification are, in principle, expressly intended for the purpose of enabling the inventive concept to be understood, and not limited to specially enumerated embodiments and conditions .

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: .

In the following description, a detailed description of known technologies related to the present invention will be omitted when it is determined that the gist of the present invention may be unnecessarily blurred. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a conventional X-ray photographing apparatus.

Referring to FIG. 1, a conventional X-ray imaging apparatus includes a generator unit 10 and a sensor unit 20.

In order to photograph a panoramic image through a conventional X-ray photographing apparatus, the generator unit 10 and the sensor unit 20 facing each other are rotated and moved to the shaft 12 along the trajectory of the object to be photographed And acquires a plurality of partial images.

Conventionally, when a plurality of partial images are acquired, a conventional X-ray imaging apparatus generates a panoramic image through a recombination process in which a partial image is attached according to a trajectory of an object.

In this process, the object is positioned between the generator unit 10 and the sensor unit 20, and the X-rays generated in the generator unit 10 are transmitted through the object and collected in the sensor unit.

That is, if other objects affecting the transmission amount of the X-ray are included along with the object to be photographed on the path of the X-ray, the generated image can be expressed unclearly with respect to the object to be photographed.

For example, if the object to be generated as a panoramic image is a dental structure including a patient's teeth, if imaging is performed using the X-ray imaging apparatus according to FIG. 1, the X- Or may be collected at the sensor section 20 through the cervical vertebra of the patient along with the mandible.

Therefore, in order to correct the image, the X-ray photographing apparatus can acquire a clearer image through the operation of increasing the power of the X-ray generated at the generator unit at the time of photographing of the anterior portion, which is superimposed with the cervical vertebrae in a general panorama image.

However, in the conventional method, since the imaging time of the anterior portion to be imaged is estimated in advance, it is difficult to reflect the characteristics according to various anatomical structures of the patient.

Therefore, the X-ray photographing apparatus according to the present invention clearly grasps the part of the subject other than the subject to be photographed by overlapping the subject, and suggests a photographing method using the part.

Hereinafter, an X-ray imaging apparatus according to the present invention will be described with reference to FIG.

2 is an exemplary view showing an X-ray imaging apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the X-ray imaging apparatus according to the present embodiment includes a generator unit 110 and a sensor unit 120.

In this embodiment, the generator unit 110 generates an X-ray.

In this embodiment, the generator unit 110 determines the intensity of the X-rays generated according to the shooting mode and irradiated to the sensor unit 120, the dose of the X-rays, etc., and determines the irradiation range through a separate collimator It is also possible.

Also, it is possible to change the focus for a specific subject to be photographed, or to generate X-rays according to other set photographing conditions.

In this embodiment, the sensor unit 120 collects the X-rays generated by the generator unit 110.

At this time, in this embodiment, the sensor unit 120 may have at least some curved surfaces covering the subject.

1, the panoramic photographing is performed by rotating the sensor unit 20 of the plane facing the generator unit 10 while rotating the sensor unit 20. However, the sensor unit 120 according to the present invention includes a curved surface So that the panoramic photographing can be performed without rotation or with minimum rotation according to Fig.

In this embodiment, the generator unit 110 can generate x-rays irradiated in various directions corresponding to the shape of the sensor unit 120 having a curved surface.

For the above operation, the sensor unit 120 according to the present embodiment includes a plurality of X-ray detecting elements, and the generator unit 110 can be composed of a plurality of X-ray emitting elements correspondingly.

In addition, although not shown, in another embodiment of the present invention, the generator unit 110 and the sensor unit 120 are integrally formed on the curved surface, and the X-ray emitting element and the X- It is also possible to configure them alternately.

That is, the X-ray detecting elements of the sensor unit 120 and the X-ray emitting elements of the generator unit 110 are alternately arranged on the curved surface as shown in FIG. 2, and the panoramic photographing according to the present embodiment can be performed through the X-ray detecting elements.

At this time, the X-ray detecting element and the X-ray emitting element perform the radiating and collecting of the X-ray by interlocking with the pair of elements disposed opposite to each other, whereby the X-ray photographing apparatus can perform the panoramic photographing. The specific imaging operation can be performed in the same manner as the operation of the X-ray imaging apparatus according to the above-described embodiment.

With the above arrangement, the X-ray photographing apparatus according to FIG. 1 can replace the moving trace of the sensor unit 20 rotating in the conventional X-ray photographing apparatus with the shape of the sensor unit 120 having a curved surface.

In the present embodiment, the sensor unit 120 may have a curved surface at a portion covering the subject, and collect x-rays irradiated from at least three directions around the subject.

In this embodiment, the shape of the sensor unit 120 can be changed according to the locus of the object of the object to be imaged.

That is, the sensor unit 120 may be a set of a plurality of X-ray detecting elements, and each X-ray detecting element may be arranged in a matrix on a flexible substrate capable of deforming the shape.

The sensor unit 120 can be configured in various combinations of a plane and a curved surface through a flexible substrate capable of deforming in shape, and can be configured to correspond to a locus of an object of a subject to be photographed.

Also, the shape may be determined in consideration of the distance between the sensor unit 120 and the generator unit 110 and the focal length.

Hereinafter, the X-ray photographing apparatus according to the present embodiment will be described in more detail with reference to FIG.

The X-ray imaging apparatus according to the present embodiment includes a support unit 130, a control unit 140, a further imaging area determining unit 150, a memory unit 160, and a communication unit 170 (not shown) in addition to the generator unit 110 and the sensor unit 120 ).

In this embodiment, the instruction unit 130 supports the above-described generator unit 110 and the sensor unit 120 at both ends, and the sensor unit 110 and the generator unit 120 can be opposed to each other .

 In order to capture the panoramic image, the subject must be positioned between the generator unit 110 and the sensor unit 120 facing each other. For the sake of photographing, the support unit 130 in this embodiment is disposed between the upper end of the generator unit 110 and the sensor unit 120, (Not shown).

In this embodiment, the control unit 140 controls the operation of the generator unit 110 and the sensor unit 120 to perform panoramic photographing and to generate an image.

More specifically, the control unit 140 controls the photographing by the sensor unit having the first active area.

In the present embodiment, the first active area may be an area in which the entire object to be created can be photographed.

That is, the first active area may be the entire area of the sensor part, but it may be a part excluding the part if the subject can be photographed without activating the entire sensor part according to the size of the subject.

Specifically, in the present embodiment, the first active area may be an area for photographing the entire upper and lower arches of the subject for panoramic photographing.

Next, in this embodiment, the control unit 140 can control the shooting according to the additional shooting area by determining the additional shooting area of the subject through analysis of the first shooting image generated by shooting the first active area .

When the additional shooting area determining unit 150 is provided, the control unit 140 controls only the operations of the generator unit 110 and the sensor unit 120 according to shooting conditions, Lt; / RTI >

That is, in this embodiment, the determination of the additional shooting area may be performed in the additional shooting area determination unit 150, and the additional shooting area determination unit 150 may determine the first shooting area generated by shooting the first active area And determines an additional shooting area.

In this embodiment, the additional shooting region may determine a part of the subject corresponding to a portion of the first region of interest that is degraded in sharpness as an additional shooting region.

In the present embodiment, the portion in which the sharpness is degraded may be a portion where the image of the subject is superposed on the region of interest of the first captured image.

That is, the X-ray photographing apparatus generates an image by using attenuation according to the transmission of the subject on the course of the X-ray, and when the object other than the object of the object corresponding to the region of interest of the generated image is located on the same course of the X- can do.

In this case, the image of the object to be photographed can be expressed more blurred by superimposition.

This will be described in more detail with reference to FIG.

4 is a diagram illustrating an example of generating a panoramic image of a patient's arch using an X-ray imaging apparatus according to an embodiment of the present invention.

Referring to FIG. 4, the sensor unit 120 according to the present embodiment may be configured to include a curved surface in consideration of the trajectory of the patient's arch (52).

Accordingly, an image can be generated corresponding to the rotation of the sensor unit 20 according to the conventional art sensor unit 20 shown in Fig.

In the conventional case, since the sensor unit 20 takes a plurality of photographs divided into a plurality of times according to the arch trace, the X-ray intensity can be adjusted at the time of photographing the partial image.

Therefore, in the conventional panoramic radiographing of the patient's arch, in the case where a part of the arch is overlapped with the cervical vertebra of the patient, when the corresponding partial image is generated, the X- To overcome blurring by superposition.

However, since this method requires anticipation of the imaging time of the anterior portion to be photographed, there is a difficulty in reflecting the characteristics according to various anatomical structures of the patient.

In contrast, the X-ray imaging apparatus according to the present embodiment aims at generating a panoramic image by taking a single shot through a sensor unit having a curved surface without generating a partial image through a plurality of shots.

4, the overlapping of the cervical vertebrae 54 occurs at the anterior portion of the arch 52. Therefore, the portion of the X-ray imaging device is determined as the additional shooting region of the subject, It compensates for the blurring of the image.

At this time, the additional shooting region may be determined through the first shooting image.

This will be described in more detail with reference to FIG.

7 is an exemplary diagram illustrating a first captured image 200 according to an embodiment of the present invention.

Referring to FIG. 7, the first captured image 200 according to the present embodiment may be generated by superimposing an image of the anterior portion of the arch 202 of the region of interest on the image 204 of the cervical portion of the subject.

Therefore, the additional imaging region determining unit 150 according to the present embodiment can calculate the width 206 of the overlapped cervical region through image processing. Alternatively, it is possible to provide a user interface for receiving the cervical vertebrae from the user, and to calculate the additional capturing area corresponding to the cervical vertebrae through the result.

The additional shooting area according to the present embodiment may be determined through the first shooting image 200 through the above method.

Next, in this embodiment, the control unit 140 controls shooting according to the additional shooting area.

The control unit 140 may adjust the X-ray generation or irradiation area of the generator unit 110 for the additional photographing area.

That is, the control unit 140 allows the X-ray to be irradiated only to the corresponding region, taking into consideration the actual additional shooting region of the subject determined by the additional shooting region determining unit 150. [

Thus, it is possible to minimize the radiation exposure of the patient according to the irradiation of the X-rays performed in addition to the irradiation of the X-rays to the entire region for generating the first captured image.

Specifically, adjustment of the x-ray irradiation area can be performed through a blade.

This will be described with reference to FIG.

Referring to FIG. 5, the blade 112 according to the present embodiment is formed on the front surface of the generator unit 110 and can be physically opened and closed.

That is, when photographing the first active region, the blade 112 is completely opened so that X-rays can be generated and irradiated to the sensor unit 120 in all directions in which irradiation is possible.

In contrast, at the time of photographing the additional photographing area, the blade 112 can adjust the opening width in consideration of the additional photographing portion of the subject.

This allows X-rays to be examined only by the open width, thereby reducing the patient's radiation exposure.

Alternatively, the control unit 140 according to the present embodiment controls the X-ray emitting elements of the generator unit 110 composed of a plurality of X-ray emitting elements in place of the blades 112 so that only the X- It is also possible to control.

Further, the control unit 140 according to the present embodiment may control the operation of the sensor unit 120 together with the control of the generator unit 110 for the additional shooting region.

At this time, the operation control of the sensor unit 120 can be performed by setting the active area.

Specifically, the control unit 110 may control the photographing by the sensor unit having the second active area according to the additional photographing area.

This will be described in more detail with reference to FIG.

6 is a view illustrating an active region 122 of the sensor unit 120 according to an embodiment of the present invention.

Referring to FIG. 6, the controller 140 according to the embodiment of the present invention includes a sensor region 120, which generates an image corresponding to an anterior portion of the cervical vertebrae 54, Setting.

That is, the sensor unit 120 according to the present embodiment can be composed of a plurality of X-ray detecting elements, and the plurality of X-ray detecting elements can be individually controlled. The bar controlling unit 140 sets the second active area, It is possible to operate only the X-ray detecting elements belonging to the X-ray detecting element.

In addition, the second active area according to the present embodiment can be set wider than the area corresponding to the additional shooting area.

That is, the X-ray imaging apparatus according to the present embodiment combines the second shot image generated by the second active area with the first shot image to generate a panorama image.

Thus, in order to facilitate the coupling of the two images, a second shot image is generated in a wider range than the overlapping portion so that the reference for overlapping the first shot image and the second shot image can be included in both images can do.

 Or to generate a second captured image including a separate reference point.

In this case, the reference point may be directly configured in hardware, or software may be generated and processed on the image to facilitate the combination of the first captured image and the second captured image in which there is a difference in shooting time.

In other words, unexpected phase change may occur due to movement of the patient in the middle of photographing during a plurality of photographing operations or due to shaking of the generator unit 110, the sensor unit 120, or the support unit 130 supporting the same, So that the first captured image and the second captured image can be combined with each other.

As described above, the X-ray photographing apparatus according to the present embodiment performs a method of generating a panoramic image by combining the first shot image and the second shot image according to the additional shooting area.

Further, in the case where the additional panoramic photographing is performed after the first panoramic photographing, the X-ray photographing apparatus according to the present embodiment uses the first photographing image generated at the time of the first panoramic photographing, It is also possible to generate.

That is, if there is generation information of the previous panoramic image, the position and width of the unique cervical vertebra of the patient can be grasped by using the additional shooting region according to the first shooting image of the previous panoramic image, have.

Specifically, at the time of additional panoramic photographing, the panoramic image can be generated only by generating the first photograph image by the first active region without performing photographing with respect to the additional photographing region.

In order to achieve this, unlike the first panoramic photographing, information about the existing additional photographing area is used to increase the intensity of the X-ray only for the X-ray emitting elements of the generator unit 110 corresponding thereto, You can achieve the same effect as combining images.

Compared with the prior art, the prior art discloses increasing the intensity of the x-rays at the point where the cervical region is expected to move according to the trajectory, but this method can not reflect the anatomical characteristics of the patient.

In addition, even if the conventional panoramic image is used, the generator unit 10 and the sensor unit 20 physically rotate to acquire a partial image according to the related art, There was a difficulty in using the panoramic image.

The X-ray photographing apparatus according to the present invention generates the first panoramic image through the two photographs of the generator unit 110 and the sensor unit 120 and then generates the first panoramic image of the physical part of the generator unit 110 and the sensor unit 120 Since additional panoramic photographing is performed without movement, a clear image can be generated even if the previous panoramic image is utilized because the deviation between the relatively photographed images is small.

For this, the memory unit 160 according to the present embodiment may store and manage the first shot image or the previous panorama image. Alternatively, it is also possible to directly store information on the additional shooting area according to the first shooting image.

In this embodiment, the memory unit 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD A random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM) , A magnetic memory, a magnetic disk, or an optical disk.

In addition, the X-ray imaging apparatus 100 according to the present embodiment may include a communication unit 170.

That is, the user can share the shot image or the additional shooting area information with the user through the communication unit 170, and use the existing shot image at different shooting locations, photographing apparatuses, and the like.

Accordingly, the communication unit 170 may include a wired / wireless Internet module for network connection.

For example, WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) As another example, a digital subscriber line (XDSL), a fiber to the home (FTTH), and a power line communication (PLC) may be used as the wired Internet technology.

In addition, the communication unit 170 may transmit and receive data to and from an electronic device including a short-range communication module, including a short-range communication module. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

According to the present invention, according to the present invention, by using the photographed x-ray image, the part of the object to be photographed is clearly recognized by the object other than the object to be photographed, and further shooting is performed to generate a clearer image .

Hereinafter, an X-ray imaging method according to an embodiment of the present invention will be described with reference to the drawings.

8 is a flowchart illustrating an X-ray imaging method according to an embodiment of the present invention.

The X-ray imaging method according to the present embodiment collects X-rays generated at a generator portion in a first active region of a sensor portion having at least some curved surfaces covering a subject to generate a first shot image (S100).

That is, in the X-ray imaging method according to the present embodiment, a first imaging image is generated by using a sensor unit having a plurality of X-ray detecting elements arranged on a flexible substrate.

At this time, the first captured image may be generated by the sensor unit having the first active region. In this embodiment, the first active area is an area where the X-ray detecting element of the sensor part is activated in order to acquire the entire image of the object to be photographed.

Therefore, the first active area may be the entire area of the sensor part, or may be a part of the sensor part depending on the size of the subject.

Next, the X-ray imaging method according to the present embodiment analyzes the generated first shot image to determine an additional shooting area of the subject (S200).

In the present embodiment, the additional shooting area is an area where additional shooting is required to make the blurred portion in the first shooting image clearer.

Therefore, the step of determining in this embodiment determines an additional shooting region of the subject corresponding to a portion of the first region of interest in which the sharpness is degraded.

That is, the first captured image may be analyzed to recognize or input a blurred portion, and an area corresponding to the blurred portion may be set as an additional shooting region.

In this embodiment, the additional shooting region may be generated according to the internal structure of the subject.

As described above, when the arch of the subject is photographed through the configuration according to FIG. 4, the image corresponding to the anterior portion overlaps with the image of the cervical vertebra, so that it may appear more blurred than the image for the other teeth.

Accordingly, referring to FIG. 10, in step S200, a region in which the image of the subject is superposed on the region of interest of the first captured image is determined (S210) (S220).

Specifically, as shown in FIG. 7, a portion of the cervical vertebra that overlaps with the image of the cervical vertebra is recognized and a portion of the subject is determined as an additional capturing region.

Further, in the present embodiment, the determination of the additional shooting area can be directly recognized in software through image processing or can be determined by inputting it according to the area designation of the user.

The X-ray imaging method according to this embodiment controls the imaging by the generator unit and the sensor unit according to the additional imaging area (S300).

Specifically, the controlling step S300 in the present embodiment may adjust the X-ray generation or irradiation area of the generator unit according to the additional photographing area.

Referring to FIG. 9, the controlling step S300 in this embodiment may be performed in the same manner as in FIG. 5 through the control of a separate blade (S310).

Or in the present embodiment, when the generator unit is composed of a plurality of X-ray emitting elements, only the X-ray emitting elements corresponding to the additional imaging region can be activated.

In addition, the controlling step S300 may control the operation of the sensor unit as well as the operation control of the generator unit.

That is, the controlling step S300 may control the photographing by the sensor unit having the second active area according to the additional photographing area.

Specifically, in the present embodiment, when the sensor unit is constituted by a plurality of X-ray detecting elements, the controlling step S300 sets the second active area through activating only the X-ray detecting elements corresponding to the activated X-ray emitting elements (S320) It is possible to control the additional shooting to be performed (S330).

According to the present invention as described above, it is possible to minimize the cost of the image processing by performing the photographing operation on the area in which the additional photographing is required and processing the image according to the re-photographing. In addition, the photographing is performed only for the area where additional photographing is required, so that the exposure of the radiation can be minimized.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control module 115 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory unit 160 and can be executed by the control unit 140. [

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Claims (19)

A generator unit for generating an X-ray;
A sensor unit collecting the generated X-rays and having at least a part of a curved surface covering an object; And
Controlling the photographing by the sensor unit having the first active area,
Determining an additional photographing area of the subject through analysis of the first photographing image generated by the photographing to adjust an X-ray generation area or an X-ray irradiation area of the generator part according to the additional photographing area, And a control unit for controlling the photographing by the sensor unit having the active area,
The second active region is part of the first active region,
Wherein the imaging unit combines the first captured image and the second captured image generated by the second active area to generate an image. delete delete The method according to claim 1,
Wherein the control unit determines an additional shooting area of the subject corresponding to a portion of the first area of interest that is less sharpened in the area of interest, The method according to claim 1,
Wherein the control unit determines an additional shooting area of the subject corresponding to a portion of the subject area over which the image of the subject is superimposed, 6. The method of claim 5,
Wherein the sensor unit has a curved surface corresponding to a trajectory of the subject,
Wherein the controller determines an additional photographing area of the subject corresponding to a portion where the image of the subject is superimposed on the trajectory, 6. The method of claim 5,
Wherein the sensor unit has a curved surface corresponding to a trajectory of an arch of the subject,
Wherein the control unit determines an additional photographing area of the subject corresponding to a part of the arch of the cervical spine which is superimposed on the image of the cervical spine of the subject according to the trajectory of the arch, The method according to claim 1,
The X-
Further comprising a blade for adjusting the x-ray irradiation area The method according to claim 1,
Wherein the generator portion includes a plurality of x-ray emitting elements,
Wherein the sensor unit includes a plurality of X-ray detecting elements,
Wherein the generator unit and the sensor unit are integrally formed on the curved surface. 10. The method of claim 9,
And the X-ray emitting element and the X-ray detecting element are alternately arranged on the curved surface. Collecting an X-ray generated at a generator portion in a first active region of a sensor portion having at least some curved surfaces covering a subject to generate a first shot image;
Analyzing the generated first shot image to determine an additional shooting area of the subject; And
Adjusting an X-ray generation area or an X-ray irradiation area of the generator part according to the additional photographing area and controlling an image taking by the sensor part having a second active area according to the additional photographing area,
The second active region is part of the first active region,
And combining the first captured image and the second captured image generated by the second active area to generate an image delete delete 12. The method of claim 11,
Wherein the determining step determines an additional shooting area of the subject corresponding to a portion where the sharpness of the area of interest of the first shot image is lowered 12. The method of claim 11,
Wherein the determining step determines an additional shooting area of the subject corresponding to a portion of the subject area over which the image of the subject is superimposed, 16. The method of claim 15,
Wherein the sensor unit has a curved surface corresponding to a trajectory of the subject,
Wherein said determining step determines an additional photographing area of said subject corresponding to a portion where the image of said subject is superimposed in accordance with said locus 16. The method of claim 15,
Wherein the sensor unit has a curved surface corresponding to a trajectory of an arch of the subject,
Wherein the determining step determines an additional photographing area of the subject corresponding to a part of the arch of the cervical spine which is superimposed on the image of the cervical spine of the subject according to the trajectory of the arch, Collecting an X-ray generated at a generator portion in a first active region of a sensor portion having at least some curved surfaces covering a subject;
Analyzing a first shot image generated by the X-rays collected in the first active area and determining an additional shot area of the subject; And
Adjusting an X-ray generation area or an X-ray irradiation area of the generator part according to the additional photographing area and controlling an image taking by the sensor part having a second active area according to the additional photographing area,
The second active region is part of the first active region,
And generating an image by combining the first captured image and a second captured image generated by the second active area, wherein the image is generated by a computer-readable recording medium delete

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