CN101094609A - X-ray computed tomography device for acquiring tomography and three-dimensional surface images - Google Patents

Abstract

The present invention relates to an X-ray computed tomography apparatus for acquiring image information from data detected by scanning an object with X-rays, and more particularly, to an X-ray computed tomography apparatus for acquiring a computed tomography image and a solid surface image, which is capable of providing a visual image to a user by acquiring tomographic information of an object and surface color information of the object to form a tomographic image and a three-dimensional surface image of the object.

Description

X-ray computed tomography device for acquiring tomography and three-dimensional surface images

technical field

The present invention relates to an X-ray computed tomography apparatus for acquiring image information from data detected by scanning an object with X-rays, and more particularly to an apparatus for acquiring computed tomography images and solid surface images The X-ray computed tomography apparatus of , which is capable of providing a user with a visual image by acquiring tomographic information of an object and surface color information of the object to form a tomographic image and a three-dimensional surface image of the object.

Background technique

Generally, an X-ray computed tomography apparatus includes: an X-ray tube for projecting X-rays onto an object; a detector for detecting X-rays emitted through the object; the rotating mechanism of the detector; and a computer for reconstructing the data obtained from the detector into image information.

A conventional X-ray computed tomography apparatus constructed as described above captures tomography of an object by rotating the rotary mechanism around the object. The capture of the tomography of the subject is performed at each sub-angle, and the projection data of the X-rays obtained through the capture for each angle are reconstructed through mathematical calculations such as an iterative method, back projection, filtered back projection, and the like.

There are various mechanical structures of X-ray computed tomography apparatuses, and these will be briefly described as follows.

As the first type, the mechanical structure of the most traditional X-ray computed tomography apparatus includes a circular rotating body with an X-ray tube, an X-ray detector, a collimator and a data collector, which is placed around the The object in the internal space of the rotating body is rotated so as to obtain transmission information of the object, and image information is obtained from the transmission information reconstructed by a computer.

As a second type, a C-arm X-ray computed tomography apparatus is an open type X-ray diagnostic apparatus in which an X-ray tube is coupled to one end of a C-arm type mechanism and an X-ray detector is coupled to the opposite end, for interventional radiation therapy.

As a third type, a dental computed tomography (CT) apparatus is specially designed for diagnosing only localized parts such as a patient's skull, throat, jaws and teeth, and is used in the fields of dentistry and maxillofacial surgery. In dental computed tomography, the X-ray tube is placed to the right and left of the object, while the dental computed tomography is rotated parallel to the ground in order to obtain transmission information.

The fourth type is an object rotation type X-ray computed tomography apparatus. In this device, instead of the rotation of the X-ray tube and the X-ray detector, the object is placed on the rotating body and rotated, so that the same effect as when the X-ray tube and the X-ray detector are rotated can be achieved. Such an object rotation type X-ray computed tomography apparatus is generally applied where it is possible to rotate an object for non-destructive testing.

Among the X-ray computed tomography apparatuses as described above, the most conventionally used first one will be described in detail.

FIG. 1 is a block diagram illustrating a conventional X-ray computed tomography apparatus.

As shown in FIG. 1 , a conventional X-ray computed tomography apparatus includes a scanning gantry 2 , a capturing table 4 and an operating console 6 . The scanning gantry 2 has an X-ray tube 20 . X-rays emitted from the X-ray tube 20 are changed into fan-shaped X-ray beams, that is, fan-shaped beams, by the collimator 22 and projected to the X-ray detector 24 .

The X-ray detector 24 includes a plurality of detector devices arranged in the same row as an array in the direction of spreading the X-rays. The structure of the X-ray detector 24 will be described in detail later. The X-ray tube 20, the collimator 22, and the X-ray detector 24 constitute an X-ray emitter-detector as described later.

X-ray detector 24 is coupled to data collector 26 . The data collector 26 collects signals detected by the respective detection devices of the X-ray detector 24 in the form of digital data. Radiation of X-rays from the X-ray tube 20 is controlled by the X-ray controller 28 . The connection between the X-ray tube 20 and the X-ray controller 28 is omitted in the figure. The collimator 22 is controlled by a collimator controller 30 . The connection between the collimator 22 and the collimator controller 30 is omitted in the figure.

Components from the X-ray tube 20 to the collimator controller 30 are mounted to the rotating part 34 of the scanning gantry 2 . The rotation of the rotating portion 34 is controlled by a rotation controller 36 . The connection between the rotating part 34 and the rotating controller 36 is omitted in the figure.

Capture station 4 is configured to move objects (not shown) into and out of the X-ray radiation space of scanning gantry 2 . The relationship between the object and the X-ray radiation space will be described later.

The operating console 6 includes a data processor 60 . For example, data processor 60 is a computer. The data processor 60 is connected to a control interface 62 . The control interface 62 is connected to the scanning gantry 2 and the capture station 4 . Data processor 60 controls scanning gantry 2 and capture station 4 through control interface 62 .

The data collector 26 , X-ray controller 28 , collimator controller 30 and rotation controller 36 of the scanning gantry 2 are controlled via a control interface 62 . The corresponding relationship between these components and the control interface 62 is omitted in the figure.

Furthermore, the data collector 60 is connected to a data collection buffer 64 . The data collection buffer 64 is connected to the data collector 26 of the scanning gantry 2 . Data collected by data collector 26 is input to data processor 60 via data collection buffer 64 .

The data processor 60 performs image reconstruction using X-ray data emitted for a plurality of viewpoints collected through the data collection buffer 64 . For example, image reconstruction is performed using a filtered back-projection algorithm.

Furthermore, the data processor 60 is connected to a memory 66 . Memory 66 stores certain types of data and programs. Processing of certain types of data related to capture is performed by data processor 60 for executing programs stored in memory 66 .

The data processor 60 is also connected to a display 68 and a manipulation device 70 . A display 68 displays the reconstructed image and other information output from the data processor 60 . The manipulation device 70 is manipulated by the user and sends some type of instruction and information to the data processor 60 . A user can interactively use the display 68 and the manipulation device 70 to manipulate the x-ray computed tomography apparatus.

As described above, X-ray detectors used in conventional X-ray computed tomography apparatuses are classified into single-row X-ray detectors, multi-row X-ray detectors, and planar type X-ray detectors according to appearance.

Single-row X-ray detectors obtain X-ray transmission information in the form of fan beams, while multi-row X-ray detectors obtain X-ray transmission information in the form of narrow-angle cone beams.

A planar type X-ray detector obtains X-ray transmission information in the form of a wide-angle cone beam, and there are various types such as: a planar type X-ray detector in which an image intensifier is connected to a charge-coupled device (CCD); A planar type X-ray detector using a CCD or CMOS sensor; a planar type X-ray detector using amorphous selenium (a-Se) that directly detects X-ray transmission information; and a scintillator connected to a photodiode for indirect detection A flat type X-ray detector for X-ray transmission information.

In order for various X-ray detectors to obtain the X-ray transmission information necessary for reconstructing computed tomography images, the X-ray detector must be rotated 360 degrees around the object or more than a predetermined angle, and obtain X-ray transmission at every minute angle information.

In the single-row X-ray detector, the width of the single-row X-ray detector is below a few millimeters. Since only a single tomographic image can be obtained for one rotation, in order to make up for the above defects, a helical scanning X-ray detector is currently used. A computed tomography apparatus in which an object using a single row of X-ray detectors advances at a fixed speed in the Z-axis direction while the X-ray tube and X-ray detectors rotate sequentially in order to obtain transmission information.

Also, as a result of the development of X-ray detectors, a new technology has recently been used in which multiple rows of X-ray detectors are installed, such as four-row X-ray detectors, eight-row X-ray detectors or sixteen-row X-ray detectors. Radiation detectors to obtain transmission information over a wide area in a short time. Likewise, in the case of reconstructing a tomographic image using a set of transmission information obtained in a helical scanning method, iterative methods, backprojection, and filtered backprojection can be used, and backprojection is the most widely used.

Likewise, for the reconstruction of tomographic images in the helical scanning method, data permutation and interpolation are used in order to obtain transmission information corresponding to the cell positions at which the acquired data will be used in the application of the image reconstruction algorithm was refactored before.

Also, recently, a planar type X-ray detector having a detection area wider than that of a multi-row X-ray detector is used, so that transmission information of an object can be obtained more quickly. In the case of using a planar type of X-ray detector, the helical scanning method can be applied to reconstruct the image, however, it is more efficient to directly use the Feldkamp algorithm using the cone beam transmission information.

Since the X-ray computed tomography apparatus as described above only obtains X-ray attenuation information for materials constituting an object to reconstruct an image, it cannot represent actual color information and detailed image information of a surface of an object.

Also, since the surface color information and detail image information of the object cannot be obtained, a visual diagnostic image cannot be provided to the user. In other words, the conventional X-ray computed tomography apparatus cannot provide effective diagnostic images when simultaneously analyzing internal damage and visible damage of a human body, or when simultaneously diagnosing and analyzing surface information and internal information of an object.

Contents of the invention

technical problem

Therefore, the present invention has been made with the above problems in mind, and an object of the present invention is to provide an X-ray computed tomography apparatus for obtaining a computed tomography image and a solid surface image, in which the image of the object surface can be captured. A camera for color information is installed in the rotating body of the X-ray computed tomography apparatus, and the surface image information of the object obtained by the camera is reconstructed so that the computed tomography and the three-dimensional image of the object are simultaneously Formed so that a visual diagnostic image is provided to the user.

Technical solutions

According to one aspect of the present invention, the above and other objects of the present invention can be achieved by providing an X-ray computed tomography apparatus capable of simultaneously obtaining tomographic images and solid surface images, the X-ray computed tomography apparatus comprising: An X-ray tube for radiating X-rays onto an object according to the control of an X-ray controller; a collimator for adjusting the collimation of X-rays irradiated from the X-ray tube according to the control of the collimation controller; X-ray a detector for detecting X-rays radiated through the adjusted collimator and transmitted through the object; a data collector for converting voltage signals generated according to the amount of X-rays detected by the X-ray detector into digital signals and send; the image camera, installed facing the object, so as to obtain the surface color information of the object; the image acquisition and control unit, used to control the image camera, store and transmit the obtained surface color information; and the rotating body, controlled by the rotation controller While rotating, the above-mentioned components are installed in the rotating body.

The focus and angle of the image camera are preferably adjusted by control of the image acquisition and control unit.

Image cameras include charge-coupled devices or complementary metal-oxide-semiconductor field-effect transistors.

It is preferable that the image camera is installed at a predetermined position of the rotating body, such as a position where X-rays radiated from an X-ray tube are not projected.

The center of the image camera is aligned with the rotation center of the rotating body.

When the X-ray computed tomography apparatus is a C-arm diagnostic apparatus, image cameras are installed at right and left sides of the C-arm diagnostic apparatus, or at predetermined positions of the C-arm.

When the X-ray computed tomography apparatus is a dental computed tomography apparatus, image cameras are installed at predetermined positions on the right and left sides of an X-ray tube of the dental computed tomography apparatus, or a C-arm.

Beneficial effect

Through the X-ray computed tomography apparatus capable of obtaining computed tomography images and solid surface images according to a preferred embodiment of the present invention, the surface color information of the object can be obtained simultaneously, so that the profile information and color information of the object are simultaneously applied to A computed tomography image and a three-dimensional image of the object are constructed to provide a visual diagnostic image to the user. Moreover, since the surface color information of the object can be obtained at the same time, when the surface information and section information of the object are required at the same time, the surface color information that cannot be obtained by the conventional X-ray computed tomography device can be accurately expressed, thereby analyzing the object's In the absence of correlation between surface information and internal information, an effective diagnostic image can be provided. Moreover, since the X-ray computed tomography apparatus according to the present invention can simultaneously obtain surface color information and X-ray transmission information of an object, and can provide a computed tomography image and a colored solid image, the X-ray computed tomography apparatus can Effectively applied to fields such as diagnosing the correlation between the exterior and the interior such as dentistry and orthopedics.

Description of drawings

The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a block diagram illustrating a conventional X-ray computed tomography apparatus;

2 is a system block diagram illustrating an X-ray computed tomography apparatus capable of simultaneously obtaining tomographic images and solid surface images according to a preferred embodiment of the present invention;

3 is an explanatory diagram illustrating a state of a rotating body that is a component of an X-ray computed tomography apparatus according to a preferred embodiment of the present invention rotated and positioned at an angle;

4 is an exemplary diagram illustrating various X-ray detectors used in an X-ray computed tomography apparatus according to a preferred embodiment of the present invention;

5 is a diagram illustrating an example of a C-arm type diagnostic apparatus mounted with an image camera as an example of an X-ray computed tomography apparatus;

6 is a diagram illustrating an example of a dental computed tomography apparatus mounted with an image camera as an example of an X-ray computed tomography apparatus;

FIG. 7 is a diagram illustrating an example of an object rotation type computed tomography apparatus to which an image camera is mounted as an example of an X-ray computed tomography apparatus.

Detailed ways

Hereinafter, an X-ray computed tomography apparatus configured as described above capable of simultaneously obtaining a tomographic image and a solid surface image according to a preferred embodiment of the present invention and its operation will be described in detail.

FIG. 2 is a system block diagram illustrating an X-ray computed tomography apparatus 200 capable of simultaneously obtaining tomographic images and solid surface images according to a preferred embodiment of the present invention.

As shown in FIG. 2, an X-ray computed tomography apparatus 200 according to a preferred embodiment of the present invention includes: an X-ray tube 210 for radiating X-rays under the control of an X-ray controller 215; a collimator 220 for to adjust the collimation according to the control of the collimation controller 225; the X-ray detector is used to detect the X-rays transmitted through the object 213; the data collector 245 is used to collect the detected X-rays; the image camera 30 is used to to obtain the surface image of the object 213; the image acquisition and control unit 235 is used to process the obtained surface image; and the rotating body 250 is rotated according to the control of the rotation controller 255, and all the above-mentioned components are installed in the Rotating body 250.

Moreover, the X-ray computed tomography apparatus further includes: a data collection buffer 260 for temporarily storing the tomographic images collected by the data collector 245; a data processor 270 for acquiring and The tomographic image information and surface image information transmitted by the control unit 235 are reconstructed into a three-dimensional image; the display 280 is used to display the three-dimensional image; the control interface 283 is used for controlling the rotating body 250 in the data processor 270 and installing in the rotating body 250 components (X-ray tube 210, collimator 220, image camera 230, etc.) as an interface; and a manipulation device 281 having manipulation buttons for the user.

X-ray controller 215, X-ray tube 210, collimation controller 225, collimator 220, image camera 230, image acquisition and control unit 235, X-ray detector 240 and data collector 245 are installed in the rotating body 250, And rotate by the control of the rotation controller 255 . In other words, the rotating body 250 mounted with these components rotates around the object 213 so that X-ray transmission information (tomographic image information) and surface image information of the object 213 can be obtained at every minute angle.

The X-ray tube 210 generates X-rays according to the control of the X-ray controller 215 and projects the X-rays to the subject 213 . X-rays are projected through the collimator 220 for adjusting the collimation according to the control of the collimation controller 225 , pass through the object 123 , and travel to the X-ray detector 240 .

The collimator 220 transmits X-rays by properly adjusting the collimation according to the type of the X-ray detector 240 . The X-rays detected by the X-ray detector 240 are collected by the data collector 245 .

The data collector 245 converts a series of voltage signals generated according to the amount of X-rays detected by the X-ray detector 240 into digital signals, and transfers the digital signals to the data collection buffer 260 . Then, the data collection buffer 260 in turn transmits the digital signal of the tomographic image input to the data collection buffer 260 to the data processor 270 .

At this time, the image camera 230 installed in the rotating body 250 acquires surface color information of the object 213 and transmits the information to the image acquisition and control unit 235 . Then, the image acquisition and control unit 234 temporarily stores the surface color information acquired by the image camera 230 and sequentially transmits the surface color information to the data processor 270 .

In order to accurately capture surface color information of the object 213 , the image camera 230 adjusts its focus and angle according to the control of the image acquisition and control unit 235 . In other words, when the size and position of the object 213 is changed, the image camera adjusts focus and angle according to the image acquisition and control unit 235 so as to accurately capture the surface color information of the object 213 .

The image sensor preferably used in the image camera 230 is selected from a Charge Coupled Device (CCD) and a Complementary Metal Oxide Semiconductor Field Effect Transistor (CMOS).

Also, as shown in FIG. 2 , the image camera 230 is installed at a predetermined position of the rotating body 250 such that X-rays emitted from the X-ray tube 210 are not projected to the predetermined position. In order to accurately capture the surface color information of the object 213 , the lens of the image camera 230 is preferably installed aligned with the rotation center of the rotating body 250 .

The transmission information (tomographic information) and surface color information of the object 213 transmitted to the data processor 270 can be converted into a predetermined tomographic image group by an image reconstruction algorithm, and a three-dimensional surface reconstructed by applying a three-dimensional image image processing technique. image.

X-ray transmission information about the object 213 detected by the X-ray detector 240 at various angles is used to reconstruct an internal tomographic image or shape of the object 213 . The surface color information of the object 213 acquired by the image camera 230 at the same time as the X-ray transmission information on the object 213 is acquired is used to reconstruct the surface color information of the object 213 .

In this way, the surface of the three-dimensional image reconstructed by the data processor 270 can be described with actual color information, and people's eyebrows, hair, and makeup, a sentence, and a picture are difficult to express in X-ray tomographic images can be expressed in actual colors.

FIG. 3 is an exemplary diagram illustrating a state of a rotating body 250 as a component of an X-ray computed tomography apparatus according to a preferred embodiment of the present invention, which is rotated and positioned at various angles of the rotating body 250 .

As shown in FIG. 3, the rotating body 250 rotates around the object 213 to every predetermined angle. Although FIG. 3 shows that the rotator 250 rotates around the object 213 to positions in increments of 30 degrees, in reality the rotator 250 rotates around the object 213 every minute of the angle.

When the rotator 250 rotates around the object 213 to every sub-angle, the transmission information of the object 213 is obtained respectively through the X-ray tube 210 and the X-ray detector 240 installed in the rotator 250, and the transmission information of the object 213 is also obtained simultaneously by the image camera 230 The surface color information of the object 213 is obtained.

At this time, the amount and type of X-ray transmission information obtained while the rotating body 250 rotates around the object 213 varies according to the type of the X-ray detector 240 installed in the rotating body 250 .

When the rotating body 250 rotates 360 degrees (1 turn) around the subject 213 and acquires X-ray transmission information and image information at each degree, the amount and type of data detected by this type of X-ray detector 240 are as follows.

Since the single-row X-ray detector 240 as shown in Figure 4a has N detection units, the number of detection units N*360 detection data is collected, and due to the multi-row X-ray detection as shown in Figure 4b In the case of the detector 240, there are four rows of arrays with N cells, therefore, 4*N*360 detection data are collected. Also, in the case of a planar type X-ray detector 240 as shown in FIG. 4c, since the array is a planar having M*N detection units, M*N*360 detection data are collected.

Thus, in the single-row X-ray detector 240 and the multi-row X-ray detector 240, in order to obtain a tomographic image about the volume of the object 213, a helical type scanning method is performed, that is, the object 213 moves along the The direction of the rotation plane is moved, and the rotation body 250 is rotated so as to obtain X-ray transmission information. However, in the planar type X-ray detector 240, when the planar type X-ray detector 240 is large enough to contain the volume of the subject 213, the X-ray transmission information on the subject 213 can be sufficiently obtained only by one rotation .

After collecting the X-ray transmission information about the object 213 according to the type of X-ray detector 240, through an image reconstruction algorithm such as filtered back projection, the single-row X-ray detector 240 and the multi-row X-ray detector 240 can A desired tomographic image of the object 213 is obtained, and through an image reconstruction algorithm such as the Feldkamp algorithm, the planar type X-ray detector 240 can obtain the desired tomographic image.

A reconstructed three-dimensional surface image can be obtained by applying a three-dimensional processing technique to a predetermined number of reconstructed tomographic image sets obtained according to the method described above. During the process of obtaining X-ray transmission information, by using image information of various angles obtained by the image camera 230 , the three-dimensional surface image obtained by the above-described processing may express color information as the actual surface color of the object 213 . Also, image information of the object 213 obtained at various angles may be reconstructed into a three-dimensional image by applying a stereoscopic image processing technique or a surface reconstruction algorithm.

Actually, the X-ray computed tomography apparatus 200 capable of obtaining tomographic images and solid surface images as described above can be applied to a C-arm type diagnostic apparatus, a dental computed tomography apparatus used in dentistry, and object 213 rotation computed tomography device.

FIG. 5 is a diagram illustrating an example of a C-arm type diagnostic apparatus mounted with an image camera 230 as an example of the X-ray computed tomography apparatus 200 .

As shown in FIG. 5 , the C-arm type diagnostic apparatus includes: an X-ray tube 210 for radiating X-rays to an object 213; an X-ray detector 240 for detecting X-rays transmitted through the object 213; an image camera 230 , used to capture the surface color information of the object 213; the C-arm 250, used as a rotating body 250; the rotation controller (not shown), used to rotate the C-arm 250; and the rest of the equipment 290 (including the X-ray controller, image acquisition and control unit, etc.).

In the C-arm type diagnostic apparatus, the image camera 230 is preferably installed at a predetermined position where the image camera 230 is not exposed to X-rays irradiated from the X-ray tube 210 . In this way, the image camera 230 is installed on the right side or left side of the X-ray tube 210 or a predetermined position of the C-arm 250 to prevent the image camera 230 from being irradiated by X-rays.

Also, the image camera 230 is preferably installed to be aligned with the center of the circle formed by the X-ray tube 210 and the X-ray detector 240 . By mounting the image camera 230 to the C-arm type diagnostic apparatus, tomographic images and surface color information of the object 213 can be simultaneously obtained.

FIG. 6 is a diagram illustrating an example of an X-ray computed tomography apparatus mounted with an image camera for use only in dentistry as an example of the X-ray computed tomography apparatus 200 .

As shown in FIG. 6, the dental X-ray computed tomography apparatus includes: an X-ray tube 210 for radiating X-rays to an object 213; an X-ray detector 240 for detecting X-rays transmitted through the object 213; The camera 230 is used to capture the surface color information of the object 213; the C-arm 250 is used as the rotating body 250; the rotation controller (not shown) is used to rotate the C-arm 250; and the remaining equipment 290 (including the X-ray control device, image acquisition and control unit, etc.).

The image camera 230 of the dental X-ray computed tomography apparatus is preferably installed at a predetermined position where the image camera 230 is not exposed to X-rays radiated from the X-ray tube 210 . In this way, the image camera 230 is installed on the right side or left side of the X-ray tube 210 or a predetermined position of the C-arm 250 to prevent the image camera 230 from being irradiated by X-rays.

Also, the image camera 230 is preferably installed to be aligned with the center of the circle formed by the X-ray tube 210 and the X-ray detector 240 . By installing the image camera 230 to the dental X-ray computed tomography apparatus, tomographic images and surface color information of the object 213 can be simultaneously obtained.

FIG. 7 is a diagram illustrating an example of an object rotation type computed tomography apparatus in which an image camera 230 is mounted as an example of the X-ray computed tomography apparatus 200 .

As shown in FIG. 7, the object 213-rotation type X-ray computed tomography apparatus includes: an X-ray tube 210 for radiating X-rays to the object 213; an X-ray detector 240 (a planar type X-ray detector 240 ), used to detect X-rays transmitted through the object 213; image camera 230, used to capture surface color information of the object 213; rotating disc 250, used as a rotating body 250; a rotation controller (not shown), used to rotate rotating disk 250; and remaining equipment 290 (including X-ray controller, image acquisition and control unit, etc.).

The image camera 230 of the object 213 rotation type X-ray computed tomography apparatus is preferably installed at a predetermined position where the image camera 230 is not exposed to X-rays irradiated from the X-ray tube 210 . In this way, the image camera 230 is installed on the side of the X-ray tube 210, or a predetermined position where X-rays are not projected.

Also, the image camera 230 is preferably installed such that the center of the lens of the image camera is aligned with the rotation center of the rotating disk. As described above, by mounting the image camera 230 to the dental X-ray computed tomography apparatus, tomographic images and surface color information of the object 213 can be simultaneously obtained.

Industrial Applicability

As described above, the X-ray computed tomography apparatus of the present invention can be applied to virtual surgery simulation and In the field of medical imaging systems such as diagnostic simulation, it can also be used for non-destructive testing such as simultaneous internal and external inspection of components of machines and vehicles, reverse engineering, and simultaneous internal and external inspection of objects.

Claims (7)

1. An X-ray computed tomography device capable of obtaining tomographic images and solid surface images simultaneously, comprising: an X-ray tube for radiating X-rays onto an object under the control of an X-ray controller; a collimator for adjusting the collimation of the X-rays radiated from the X-ray tube according to the control of the collimation controller; an X-ray detector for detecting X-rays radiated through the adjusted collimator and transmitted through the object; a data collector for converting a voltage signal generated according to the amount of X-rays detected by the X-ray detector into a digital signal and transmitting; an image camera installed facing the object to obtain surface color information of the object; an image acquisition and control unit for controlling the image camera, storing and transmitting the obtained surface color information; and The rotating body rotates under the control of the rotating controller, and the above-mentioned components are installed in the rotating body. 2. The X-ray computed tomography apparatus according to claim 1, wherein the focus and angle of the image camera are adjusted through the control of the image acquisition and control unit. 3. The X-ray computed tomography apparatus of claim 2, wherein the image camera comprises a charge coupled device or a complementary metal oxide semiconductor field effect transistor. 4. The X-ray computed tomography apparatus according to claim 3, wherein the image camera is installed at a predetermined position of the rotating body, such as a position where X-rays irradiated by the X-ray tube are not projected. 5. The X-ray computed tomography apparatus according to claim 4, wherein the center of the image camera is aligned with the rotation center of the rotating body. 6. The X-ray computed tomography apparatus according to claim 1, wherein when the X-ray computed tomography apparatus is a C-arm diagnostic apparatus, the image camera is mounted on the right side of the C-arm type diagnostic apparatus. side and left side, or at the predetermined position of the C-arm. 7. The X-ray computed tomography apparatus according to claim 1, wherein, when the X-ray computed tomography apparatus is a dental computed tomography apparatus, the image camera is mounted on the dental computed tomography apparatus The right and left sides of the X-ray tube, or the predetermined position of the C-arm.

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