WO2011014013A2 - Digital x-ray sensing and displaying device - Google Patents

Digital x-ray sensing and displaying device Download PDF

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Publication number
WO2011014013A2
WO2011014013A2 PCT/KR2010/004972 KR2010004972W WO2011014013A2 WO 2011014013 A2 WO2011014013 A2 WO 2011014013A2 KR 2010004972 W KR2010004972 W KR 2010004972W WO 2011014013 A2 WO2011014013 A2 WO 2011014013A2
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Prior art keywords
ray
digital
image
image data
unit
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PCT/KR2010/004972
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French (fr)
Korean (ko)
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WO2011014013A3 (en
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박성규
김영태
김주환
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(주)바텍이우홀딩스
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Priority claimed from KR1020090068995A external-priority patent/KR20110011377A/en
Priority claimed from KR1020090068994A external-priority patent/KR101069374B1/en
Application filed by (주)바텍이우홀딩스 filed Critical (주)바텍이우홀딩스
Publication of WO2011014013A2 publication Critical patent/WO2011014013A2/en
Publication of WO2011014013A3 publication Critical patent/WO2011014013A3/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4233—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry

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  • the present invention relates to a digital X-ray sensing and display device, and more particularly, is mounted on a conventional film x-ray imaging apparatus or a digital x-ray imaging apparatus having an X-ray light source to take a panoramic image, a CT image, or a cephalo image of a subject.
  • the present invention relates to a digital X-ray sensing and display device capable of reconfiguring and storing X-ray image data in an embedded manner without using a separate computer device.
  • a medical or dental X-ray sensor device is an apparatus for photographing an X-ray image of a subject, and includes an X-ray light source that radiates X-rays to the subject and an X-ray film that receives X-rays passing through the subject to obtain an X-ray image. Since the conventional X-ray sensor device uses an X-ray film, it is possible to obtain an X-ray image of a subject only once, which is a waste of resources and hassle that needs to be kept continuously for treatment.
  • the conventional digital X-ray sensor device has a problem that a separate server-class computer that can reconstruct the digital image signal output from the X-ray sensor to the X-ray image.
  • a conventional X-ray light source or a film cassette mounting unit may be utilized, and a digital X-ray detection and display apparatus capable of reconfiguring and displaying an X-ray image without a separate computer is provided.
  • the present invention provides a digital X-ray sensing and display device that can obtain an X-ray image at a low cost by using a conventional film x-ray imaging apparatus or a digital x-ray imaging apparatus, and does not require a separate computer device for reconstructing a digital image signal.
  • the digital X-ray sensing and display apparatus of the present invention is mounted on a device having an X-ray light source, such as a conventional film X-ray imaging apparatus or a digital X-ray imaging apparatus, so that the X-ray light source or the film cassette mounting unit is used as it is. There is an effect to reduce the rise.
  • an X-ray light source such as a conventional film X-ray imaging apparatus or a digital X-ray imaging apparatus
  • the image reconstruction unit for reconstructing the X-ray image signal into the X-ray image data is mounted in an embedded manner, which has the effect of reconstructing the digital image signal to the X-ray image without a separate computer device have.
  • FIG. 1 is a view for explaining the use of the digital X-ray detection and display device according to an embodiment of the present invention
  • FIG. 2 is a block diagram of a digital X-ray detection and display device shown in FIG.
  • FIG. 3 is a view for explaining an example of the use of the digital X-ray detection and display device according to an embodiment of the present invention
  • FIG. 4 is a configuration diagram of a digital X-ray detection and display device shown in FIG.
  • FIG. 5 is a view showing a first embodiment of reconstructed oral panoramic image data in the digital X-ray sensor apparatus according to an embodiment of the present invention
  • FIGS. 6 and 7 are views for explaining a second embodiment of the oral panoramic image data reconstructed in the digital X-ray sensor apparatus according to an embodiment of the present invention
  • FIG. 8 is a view for explaining a third embodiment of the oral cavity panoramic image data reconstructed in the digital X-ray sensor apparatus according to an embodiment of the present invention.
  • X-ray detection module 230 Display module
  • Digital X-ray sensing and display device mounted on the device having an X-ray light source according to a preferred embodiment of the present invention, the X-ray sensor for receiving the X-rays and outputs a digital image signal; A control unit controlling an operation of the X-ray sensor; An image reconstructing unit configured to reconstruct the digital image signal into X-ray image data; A data storage unit for storing the X-ray image data; A central processing unit for controlling operations of the image reconstructing unit and the data storage unit; And a display unit for outputting the X-ray image data as an image.
  • a digital X-ray detecting and display device mounted on a device having an X-ray light source includes an X-ray sensor that receives X-rays and outputs a digital image signal, and a control unit that controls an operation of the X-ray sensor.
  • X-ray module includes an image reconstruction unit for reconstructing the digital image signal into X-ray image data, a data storage unit for storing the X-ray image data, a central processing unit for controlling operations of the image reconstruction unit, and the data storage unit, and the X-ray image data. It includes a display module including a display for outputting.
  • FIG. 1 is a diagram illustrating an example of use of a digital X-ray sensing and display apparatus according to an embodiment of the present invention
  • FIG. 2 is a configuration diagram of the digital X-ray sensing and display apparatus shown in FIG. 1.
  • the digital X-ray sensor apparatus 100 may include an X-ray sensor 110, a controller 120, an image reconstruction unit 130, a data storage unit 140, and a central processing unit. 150 and the display unit 160.
  • the digital X-ray detecting and display apparatus 100 has a X-ray sensor 110 in front and a housing including a control unit 120, an image reconstruction unit 130, a data storage unit 140, and a central processing unit 150 therein. 160 may be further included.
  • FIG. 3 is a view for explaining an example of the use of the digital X-ray detection and display device according to an embodiment of the present invention
  • Figure 4 is a block diagram of the digital X-ray detection and display device shown in FIG. 3 and 4
  • the digital X-ray sensor apparatus 200 includes an X-ray sensing module 210, a display module 230, and a housing 260.
  • the X-ray detection module 210 includes an X-ray sensor 211 and a control unit 212
  • the display module 230 includes a display unit 231, an image reconstruction unit 232, a data storage unit 233, and a central processing unit ( 234).
  • the X-ray sensor 211 of the X-ray detection module 210 may be provided on the front surface of the housing 260, and the controller 212 may be provided inside the housing 260.
  • the display module 230 is not provided in the housing 260, and is connected to the X-ray module 210 and a Low Voltage Differential Signaling (LVDS) cable to transmit / receive data with each other, or to another type of wired or wireless connection. Can be connected by cable.
  • LVDS Low Voltage Differential Signaling
  • the digital X-ray sensing and display apparatuses 100 and 200 are mounted and used in a device having an X-ray light source 20, such as a conventional film X-ray imaging apparatus or a digital X-ray imaging apparatus, and in particular, mounted in a conventional film X-ray imaging apparatus.
  • the film cassette 11 may be mounted on the removed film cassette mounting portion 10. That is, since the X-ray light source 20 and the film cassette mounting portion 10 of the conventional film X-ray imaging apparatus are used as they are, the cost can be greatly reduced compared to the case of purchasing a digital X-ray imaging apparatus, and the disposable X-ray film 11a is used. ), It can take X-ray images continuously.
  • the X-ray sensing and display apparatuses 100 and 200 may be mounted on the front surface of the film cassette mounting unit 10 without removing the film cassette 11 of the conventional film cassette mounting unit 10.
  • the X-ray sensors 110 and 211 receive X-rays radiated from the X-ray light source 20 and transmitted through the subject to output digital image signals.
  • the X-ray sensors 110 and 211 may include a scintillator panel for converting X-rays into visible light, a photoelectric panel for receiving visible light and outputting analog video signals, and A for converting analog video signals into digital video signals. May include a / D converter.
  • the photoelectric panel outputs an analog video signal by amplifying a voltage output from a pixel array that receives visible light and charges electricity, a gate driver that controls the voltage output of the pixel array, and amplifies the voltage output from the pixel array.
  • the readout IC may include a readout IC.
  • the x-ray sensor of the indirect method for receiving and converting the X-rays into visible rays by the X-ray sensor (110, 211) using a scintillator panel, a photoconductive material (a-Se, HgI 2
  • the X-ray sensors 110 and 211 may be implemented as direct X-ray sensors that output X-rays as analog image signals, which are direct electrical signals.
  • the X-ray sensor 110 is an X-ray sensor for dental, head and neck or otorhinolaryngology, and may be a panoramic sensor, a CT sensor or a cephalo sensor, respectively.
  • the controllers 120 and 212 of the digital X-ray detection and display apparatuses 100 and 200 control the operations of the X-ray sensors 110 and 211, and perform trigger signals for initializing the X-ray sensors 110 and 211 or X-ray imaging. Generate a clock signal to start. More specifically, the control unit 120 generates a clock signal through which the gate driver of the photovoltaic panel flows the electricity charged in the pixel array, and transmits the generated clock signal to the gate driver, or the gate driver discharges the electricity charged in the pixel array a predetermined number of times. The trigger signal for initializing the electric charge level charged in the pixel array is transmitted to the gate driver, thereby controlling the operations of the X-ray sensors 110 and 212.
  • the controller 212 of the digital X-ray sensing and display apparatus 200 controls not only an operation of the X-ray sensor 211 but also a conversion operation of a digital image signal. That is, the controller 212 controls a change operation of the digital video signal by generating a reset signal for operating the readout IC and transmitting the reset signal to the readout IC.
  • the image reconstruction units 130 and 232 receive digital image signals output from the X-ray sensors 110 and 211 and reconstruct the X-ray image data.
  • the image reconstruction units 130 and 232 reconstruct the raw image I1 by the digital image signal into a panoramic image, a CT image or a cephalo image.
  • the image reconstructor 130 superimposes several thousands of frame images (about 2700 frames at the time of panorama shooting) (data capacity: about 5 Gbit) constituting the raw image 171 to each other, and then overlaps the frame images.
  • the image is reconstructed into one panorama image (data capacity: about 3Gbit) by deleting one of the portions. That is, the image reconstruction units 130 and 232 are programmed and mounted in the X-ray detection and display apparatus 100 according to an embodiment of the present invention in an embedded manner, so that a separate server class computer for image reconstruction is not required. .
  • the data storage units 140 and 233 store X-ray image data reconstructed by the image reconstruction units 130 and 232.
  • the data storage units 140 and 233 are provided as removable removable storage units, which facilitate the movement of data.
  • the removable storage may be a USB memory (Universal Serial Bus Memory).
  • the central processing unit 150 of the digital X-ray sensing and display apparatus 100 controls the operations of the controller 120, the image reconstructing unit 130, and the data storage 140, and controls the operations of the digital X-ray sensing and display apparatus 200.
  • the central processor 234 controls the operations of the display unit 231, the image reconstruction unit 232, and the data storage unit 233.
  • the display units 170 and 231 output X-ray image data as an image, and may be implemented as an LCD panel (Liquid Crystal Display panel) or an LED panel according to an embodiment of the present invention. , PDP (Plasma Display Panel) or OLED Panel (Organic Light Emitting Diodes Panel). 1 and 2, the display unit 170 of the digital X-ray sensing and display apparatus 100 may be attached to a portion of the housing 160. According to an exemplary embodiment of the present invention, the display unit 170 may be attached to the rear surface of the housing 160 so that the rear surface of the X-ray sensor 110 and the rear surface of the display unit 170 may face each other.
  • the X-ray sensor 110 may be disposed on the front side, and the display unit 170 may be disposed on the rear side.
  • the display units 170 and 231 simultaneously output a low image I1 by a digital image signal and a reconstructed image I2 by X-ray image data, that is, a panoramic image, a CT image, or a cephalo image.
  • the display units 170 and 231 may be implemented as a touch screen, and an image transmission button B1 and an image deletion button B2 may be displayed on the touch screen.
  • the transmission button B1 is pressed, the X-ray image data is transmitted and stored to the data storage units 140 and 233, and when the delete button B2 is pressed, the X-ray image data is deleted from the cache area.
  • the display units 170 and 231 have an image zoom function for enlarging or reducing the output images I1 and I2. That is, the user may directly confirm the completeness of the reconstructed image I2 and store the reconstructed X-ray image data.
  • the digital X-ray detecting and display apparatus 100 may be equipped with an Ethernet networking unit and an external USB memory to download the X-ray image data. It may further include a USB host to enable.
  • the digital X-ray sensing and display apparatuses 100 and 200 may further include a counting counting unit for counting and storing the counting number of X-rays.
  • the counting counting unit counts X-ray imaging when the X-ray sensors 110 and 211 receive X-rays, or counts X-ray imaging using a trigger signal input to initialize the X-ray sensors 110 and 211.
  • the counting may be counted by X-ray imaging, or the X-ray photographing may be counted by the controller 120 or 212 when the photographing start signal or the clock for photographing is generated by the X-ray sensors 110 and 211.
  • the photographing count counting unit records the number of times of use of the digital X-ray sensing and display apparatus 100 when the digital X-ray sensing and display apparatus 100 of the present invention is rented so that the photographing counting unit may be used as a basis for renting.
  • FIG. 5 is a diagram illustrating a first embodiment of reconstructed oral panoramic image data in a digital X-ray sensor device according to an embodiment of the present invention.
  • components substantially the same as those of FIGS. 1 to 4 will be omitted and the same reference numerals will be referred.
  • X-ray image data of a digital X-ray sensor device is generated as oral panorama image data (PI).
  • the digital video signal output from the X-ray sensors 110 and 211 is composed of a plurality of digital video signals, that is, a plurality of frame image signals f1, f2,... Fn, and image reconstruction.
  • the units 130 and 232 reconstruct frame image signals f1, f2, ..., fn into one oral panoramic image data PI.
  • FIG. 6 and 7 are diagrams for describing a second exemplary embodiment of oral panoramic image data reconstructed in a digital X-ray sensor apparatus according to an exemplary embodiment of the present invention.
  • the digital image signal output from the X-ray sensors 110 and 211 is composed of a plurality of digital image signals, that is, a plurality of frame image signals f, and the image reconstruction units 130 and 232
  • the frame image signals f are sequentially connected to each other or partially overlap each other to generate panoramic image data of the plurality of image layers il-1, il, il + 1.
  • the panoramic image data for the reference image layer il superimposed by at least a predetermined pixel p is generated, and then the frame image signals constituting the panoramic image data for the reference image layer il ( The overlapping degree of pixels p between f) is different, or the frame image signals f are joined to each other without overlapping, so that the image layer il-1 and the image outside the reference image layer il
  • panorama images of the layer il + 1 panorama image data of all of the plurality of image layers il-1, il, il + 1 are obtained.
  • FIG. 6 illustrates overlapping or less overlapping with respect to one pixel p
  • the overlapping degree is different, but more overlapping or less overlapping with respect to a part of one pixel p.
  • image layers il-1, il, il + 1 are illustrated as three image layers il-1, il, il + 1 in FIG. 6, dozens or hundreds of image layers may be provided according to an image interpolation technique. Panoramic image data for image layers may be obtained.
  • the frequency analysis method is a method of analyzing spatial frequency components of an image by Fourier transforming panoramic image data.
  • FIG. 7 is a view for explaining a frequency analysis method and shows a distribution of spatial frequency components which are contrasts according to spatial positions of an X-ray image, and the sharpest image layer (il-1, il, il + 1) of the image layers (il-1, il, il + 1).
  • the panoramic image data for ilp since the spatial frequency component has a high frequency value having a high frequency in a specific high frequency band, the spatial frequency component of the image layers il-1, il, il + 1 has the highest value.
  • the oral panorama image data may be obtained by selecting an image layer ilp and reconstructing the panorama image data.
  • the digital image signal output from the X-ray sensors 110 and 211 includes a plurality of digital image signals, that is, a plurality of frame image signals f.
  • the image reconstructing unit 130 is performed.
  • 232 sequentially connects the frame image signals f to each other or partially overlaps each other to generate panorama image data for the plurality of image layers il-1, il, il + 1.
  • each image layer (il-1, il, il + 1) is divided into at least two partial panorama image data (a, b, c, d, e), and the partial panorama image data (a, b,
  • the oral panoramic image data is generated by extracting the clearest partial panoramic image data ilp of c, d, and e through the frequency analysis and concatenating them.
  • the oral panoramic image data may be completed by using the connection panoramic image data ilc between the sharpest partial panoramic image data ilp, and the connection panoramic image data ilc may be the sharpest partial panoramic image. It is mathematically calculated and generated by a log equation corresponding to a trajectory connecting the data ilp.
  • the digital X-ray sensing and display device can replace the conventional X-ray film.
  • the digital X-ray sensing and display apparatus may be employed in a device having an X-ray light source, such as a conventional film X-ray imaging apparatus or a digital X-ray imaging apparatus, to obtain an X-ray image of a subject.
  • an X-ray light source such as a conventional film X-ray imaging apparatus or a digital X-ray imaging apparatus
  • the digital X-ray sensing and display apparatus can be reconstructed into an X-ray image of a digital image signal without an additional computer device in an embedded manner.

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Abstract

The present invention relates to a digital X-ray sensor system, and more specifically to a digital X-ray sensor system which is mounted on a conventional film X-ray imaging device or digital X-ray imaging device while taking panoramic images, CT images or cephalic images of a subject, thereby making it possible to reconstruct and store X-ray image data in embedded format without recourse to a separate computer.

Description

디지털 엑스선 감지 및 디스플레이 장치Digital X-Ray Detection and Display Devices
본 발명은 디지털 엑스선 감지 및 디스플레이 장치에 관한 것으로, 보다 구체적으로는 X선 광원을 구비하는 종래의 필름엑스선촬영장치나 디지털엑스선촬영장치에 장착되어 피사체의 파노라마영상, CT영상 또는 세팔로영상을 촬영하고, 별도의 컴퓨터장치를 이용하지 않고, 임베디드 방식으로 엑스선 영상데이터를 재구성하여 저장할 수 있는 디지털 엑스선 감지 및 디스플레이 장치에 관한 것이다.The present invention relates to a digital X-ray sensing and display device, and more particularly, is mounted on a conventional film x-ray imaging apparatus or a digital x-ray imaging apparatus having an X-ray light source to take a panoramic image, a CT image, or a cephalo image of a subject. In addition, the present invention relates to a digital X-ray sensing and display device capable of reconfiguring and storing X-ray image data in an embedded manner without using a separate computer device.
일반적으로 의료용 또는 치과용 엑스선 센서 장치는 피사체의 엑스선 영상을 촬영하는 장치로써, 상기 피사체로 엑스선을 조사하는 엑스선 광원과 상기 피사체를 투과한 엑스선을 수광하여 엑스선 영상을 획득하는 엑스선 필름을 포함한다. 이러한 종래의 엑스선 센서 장치는 엑스선 필름을 사용하므로 일 회에 한해 피사체의 엑스선 영상을 획득 수 있어, 자원의 낭비가 심하고 치료를 위해서는 지속적으로 보관하여야 하는 번거로움이 있다.In general, a medical or dental X-ray sensor device is an apparatus for photographing an X-ray image of a subject, and includes an X-ray light source that radiates X-rays to the subject and an X-ray film that receives X-rays passing through the subject to obtain an X-ray image. Since the conventional X-ray sensor device uses an X-ray film, it is possible to obtain an X-ray image of a subject only once, which is a waste of resources and hassle that needs to be kept continuously for treatment.
최근, 영상기술 및 의료기술이 발달함에 따라 엑스선 필름을 이용하지않고 광전패널을 이용하여 지속적으로 피사체의 엑스선 영상을 획득할 수 있는 디지털 엑스선 장치가 개발되기도 하였는데, 종래의 디지털 엑스선 장치는 엑스선광원과 엑스선 센서가 한 조로 구성되어 구입비용에 부담이 크고, 종래의 엑스선 장치의 엑스선 광원이나 필름카세트 장착부를 활용할 수 없는 문제점이 있다.Recently, with the development of imaging technology and medical technology, a digital X-ray apparatus capable of continuously obtaining an X-ray image of a subject using an optoelectronic panel without using an X-ray film has been developed. Since the X-ray sensor is composed of one pair, the purchase cost is high, and there is a problem in that the X-ray light source or the film cassette mounting unit of the conventional X-ray apparatus cannot be utilized.
또한, 종래의 디지털 엑스선 센서 장치은 엑스선 센서에서 출력되는 디지털 영상신호를 엑스선 영상으로 재구성할 수 있는 서버급의 별도의 컴퓨터를 구비하여야 하는 문제점이 있다.In addition, the conventional digital X-ray sensor device has a problem that a separate server-class computer that can reconstruct the digital image signal output from the X-ray sensor to the X-ray image.
종래 엑스선 광원이나 필름 카세트 장착부를 활용할 수 있으며, 별도의 컴퓨터 없이 엑스선 영상을 재구성하여 디스플레이할 수 있는 디지털 엑스선 감지 및 디스플레이 장치를 제공한다.A conventional X-ray light source or a film cassette mounting unit may be utilized, and a digital X-ray detection and display apparatus capable of reconfiguring and displaying an X-ray image without a separate computer is provided.
종래의 필름엑스선촬영장치 또는 디지털엑스선촬영장치를 활용하여 낮은 비용으로 엑스선 영상을 획득할 수 있고, 디지털 영상신호를 재구성하기 위한 별도의 컴퓨터장치가 필요 없는 디지털 엑스선 감지 및 디스플레이 장치를 제공한다. The present invention provides a digital X-ray sensing and display device that can obtain an X-ray image at a low cost by using a conventional film x-ray imaging apparatus or a digital x-ray imaging apparatus, and does not require a separate computer device for reconstructing a digital image signal.
먼저, 본 발명의 디지털 엑스선 감지 및 디스플레이 장치에 의하면, 종래의 일 회에 한해 사용가능한 엑스선 필름을 대체하여 지속적으로 엑스선 영상을 획득할 수 있는 효과가 있다.First, according to the digital X-ray detection and display device of the present invention, there is an effect that can continuously obtain the X-ray image by replacing the conventional X-ray film available only once.
또한, 본 발명의 디지털 엑스선 감지 및 디스플레이 장치에 의하면, 종래의 필름엑스선촬영장치 또는 디지털엑스선촬영장치와 같이 X-선 광원을 구비하는 장치에 장착하여 엑스선광원이나 필름카세트장착부를 그대로 사용하므로 비용의 상승을 줄일 수 있는 효과가 있다.In addition, according to the digital X-ray sensing and display apparatus of the present invention, it is mounted on a device having an X-ray light source, such as a conventional film X-ray imaging apparatus or a digital X-ray imaging apparatus, so that the X-ray light source or the film cassette mounting unit is used as it is. There is an effect to reduce the rise.
또한, 본 발명의 디지털 엑스선 감지 및 디스플레이 장치에 의하면, 엑스선 영상신호를 엑스선 영상 데이터로 재구성하는 영상재구성부가 임베디드 방식으로 탑재되어 별도의 컴퓨터장치 없이 디지털 영상신호를 엑스선 영상으로 재구성할 수 있는 효과가 있다.In addition, according to the digital X-ray detection and display device of the present invention, the image reconstruction unit for reconstructing the X-ray image signal into the X-ray image data is mounted in an embedded manner, which has the effect of reconstructing the digital image signal to the X-ray image without a separate computer device have.
도 1은 본 발명의 일 실시예에 따른 디지털 엑스선 감지 및 디스플레이 장치의 사용예를 설명하기 위한 도면, 1 is a view for explaining the use of the digital X-ray detection and display device according to an embodiment of the present invention;
도 2는 도 1에 보인 디지털 엑스선 감지 및 디스플레이 장치의 구성도,2 is a block diagram of a digital X-ray detection and display device shown in FIG.
도 3은 본 발명의 일 실시예에 따른 디지털 엑스선 감지 및 디스플레이 장치의 사용예를 설명하기 위한 도면, 3 is a view for explaining an example of the use of the digital X-ray detection and display device according to an embodiment of the present invention;
도 4는 도 3에 보인 디지털 엑스선 감지 및 디스플레이 장치의 구성도,4 is a configuration diagram of a digital X-ray detection and display device shown in FIG.
도 5는 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치에서 재구성된 구강 파노라마 영상데이터의 제1실시예를 보여주는 도면,5 is a view showing a first embodiment of reconstructed oral panoramic image data in the digital X-ray sensor apparatus according to an embodiment of the present invention,
도 6 및 도 7은 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치에서 재구성된 구강 파노라마 영상데이터의 제2실시예를 설명하기 위한 도면,6 and 7 are views for explaining a second embodiment of the oral panoramic image data reconstructed in the digital X-ray sensor apparatus according to an embodiment of the present invention,
도 8은 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치에서 재구성된 구강 파노라마 영상데이터의 제3실시예를 설명하기 위한 도면이다.8 is a view for explaining a third embodiment of the oral cavity panoramic image data reconstructed in the digital X-ray sensor apparatus according to an embodiment of the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
100, 200:디지털 엑스선 감지 및 디스플레이 장치 110, 211:엑스선 센서100, 200: Digital X-ray detection and display device 110, 211: X-ray sensor
120, 212:제어부 130, 232:영상재구성부120, 212: control unit 130, 232: video reconstruction unit
140, 233:데이터저장부 150, 234:중앙처리부140, 233: data storage unit 150, 234: central processing unit
160, 260:하우징 170, 231: 디스플레이부160, 260: housing 170, 231: display unit
210: 엑스선 감지 모듈 230: 디스플레이 모듈210: X-ray detection module 230: Display module
I1:로우 영상 I2:재구성 영상I1: Low image I2: Reconstruction image
B1:전송 버튼 B2:삭제 버튼B1: Send button B2: Delete button
본 발명의 바람직한 실시예에 따른 엑스선 광원을 구비하는 장치에 장착되는 디지털 엑스선 감지 및 디스플레이 장치는, 엑스선을 수광하여 디지털 영상신호를 출력하는 엑스선 센서; 상기 엑스선 센서의 동작을 제어하는 제어부; 상기 디지털 영상신호를 엑스선 영상데이터로 재구성하는 영상재구성부; 상기 엑스선 영상데이터를 저장하는 데이터저장부; 상기 영상재구성부 및 상기 데이터저장부의 동작을 제어하는 중앙처리부; 및 상기 엑스선 영상데이터를 영상으로 출력하는 디스플레이부를 포함한다.Digital X-ray sensing and display device mounted on the device having an X-ray light source according to a preferred embodiment of the present invention, the X-ray sensor for receiving the X-rays and outputs a digital image signal; A control unit controlling an operation of the X-ray sensor; An image reconstructing unit configured to reconstruct the digital image signal into X-ray image data; A data storage unit for storing the X-ray image data; A central processing unit for controlling operations of the image reconstructing unit and the data storage unit; And a display unit for outputting the X-ray image data as an image.
본 발명의 바람직한 실시예에 따른 엑스선 광원을 구비하는 장치에 장착되는 디지털 엑스선 감지 및 디스플레이 장치는, 엑스선을 수광하여 디지털 영상신호를 출력하는 엑스선 센서와 상기 엑스선 센서의 동작을 제어하는 제어부를 포함하는 엑스선 모듈; 및 상기 디지털 영상신호를 엑스선 영상데이터로 재구성하는 영상재구성부, 상기 엑스선 영상데이터를 저장하는 데이터저장부, 상기 영상재구성부 및 상기 데이터저장부의 동작을 제어하는 중앙처리부 및 상기 엑스선 영상데이터를 영상으로 출력하는 디스플레이부를 포함하는 디스플레이 모듈을 포함한다.A digital X-ray detecting and display device mounted on a device having an X-ray light source according to an exemplary embodiment of the present invention includes an X-ray sensor that receives X-rays and outputs a digital image signal, and a control unit that controls an operation of the X-ray sensor. X-ray module; And an image reconstruction unit for reconstructing the digital image signal into X-ray image data, a data storage unit for storing the X-ray image data, a central processing unit for controlling operations of the image reconstruction unit, and the data storage unit, and the X-ray image data. It includes a display module including a display for outputting.
본 발명에서 사용되는 용어는 가능한 현재 널리 사용되는 일반적인 용어를 선택하였으나, 특정한 경우는 출원인이 임의로 선정한 용어도 있는데 이 경우에는 단순한 용어의 명칭이 아닌 발명의 상세한 설명 부분에 기재되거나 사용된 의미를 고려하여 그 의미가 파악되어야 할 것이다.The terms used in the present invention are selected as general terms as widely used as possible, but in some cases, the terms arbitrarily selected by the applicant, in which case, the meanings described or used in the detailed description of the present invention, rather than simply the names of the terms, are considered. The meaning should be grasped.
이하, 첨부한 도면 및 바람직한 실시예들을 참조하여 본 발명의 기술적 구성을 상세하게 설명한다. 그러나, 본 발명은 여기서 설명되는 실시예에 한정되지 않고 다른 형태로 구체화 될 수도 있다. 명세서 전체에 걸쳐 동일한 참조번호는 동일한 구성요소를 나타낸다.Hereinafter, with reference to the accompanying drawings and preferred embodiments will be described in detail the technical configuration of the present invention. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Like numbers refer to like elements throughout the specification.
도 1은 본 발명의 일 실시예에 따른 디지털 엑스선 감지 및 디스플레이 장치의 사용예를 설명하기 위한 도면이고, 도 2는 도 1에 보인 디지털 엑스선 감지 및 디스플레이 장치의 구성도이다. 도 1, 2를 참조하면 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치(100)는 엑스선 센서(110), 제어부(120), 영상재구성부(130), 데이터저장부(140) 및 중앙처리부(150) 및 디스플레이부(160)을 포함한다. 디지털 엑스선 감지 및 디스플레이 장치(100)는 엑스선 센서(110)를 전면에 두고, 제어부(120), 영상재구성부(130), 데이터저장부(140) 및 중앙처리부(150)을 내부에 구비하는 하우징(160)을 더 포함할 수 있다. FIG. 1 is a diagram illustrating an example of use of a digital X-ray sensing and display apparatus according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of the digital X-ray sensing and display apparatus shown in FIG. 1. 1 and 2, the digital X-ray sensor apparatus 100 according to an exemplary embodiment of the present invention may include an X-ray sensor 110, a controller 120, an image reconstruction unit 130, a data storage unit 140, and a central processing unit. 150 and the display unit 160. The digital X-ray detecting and display apparatus 100 has a X-ray sensor 110 in front and a housing including a control unit 120, an image reconstruction unit 130, a data storage unit 140, and a central processing unit 150 therein. 160 may be further included.
도 3은 본 발명의 일 실시예에 따른 디지털 엑스선 감지 및 디스플레이 장치의 사용예를 설명하기 위한 도면이고, 도 4는 도 3에 보인 디지털 엑스선 감지 및 디스플레이 장치의 구성도이다. 도 3, 4를 참조하면 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치(200)는 엑스선 감지 모듈(210), 디스플레이 모듈(230) 및 하우징(260)을 포함한다. 엑스선 감지 모듈(210)은 엑스선 센서(211)와 제어부(212)를 포함하고, 디스플레이 모듈(230)은 디스플레이부(231), 영상재구성부(232), 데이터 저장부(233) 및 중앙처리부(234)를 포함한다. 엑스선 감지 모듈(210) 중 엑스선 센서(211)는 하우징(260)의 전면에, 제어부(212)는 하우징(260)의 내부에 구비될 수 있다. 디스플레이 모듈(230)은 하우징(260) 내에 구비되지 않고, 엑스선 모듈(210)과 저전압차분신호(Low Voltage Differential Signalling: 이하, LVDS) 케이블로 연결되어 서로 데이터를 송수신하거나, 다른 형태의 유선, 무선 케이블로 연결될 수 있다.3 is a view for explaining an example of the use of the digital X-ray detection and display device according to an embodiment of the present invention, Figure 4 is a block diagram of the digital X-ray detection and display device shown in FIG. 3 and 4, the digital X-ray sensor apparatus 200 according to an exemplary embodiment of the present invention includes an X-ray sensing module 210, a display module 230, and a housing 260. The X-ray detection module 210 includes an X-ray sensor 211 and a control unit 212, and the display module 230 includes a display unit 231, an image reconstruction unit 232, a data storage unit 233, and a central processing unit ( 234). The X-ray sensor 211 of the X-ray detection module 210 may be provided on the front surface of the housing 260, and the controller 212 may be provided inside the housing 260. The display module 230 is not provided in the housing 260, and is connected to the X-ray module 210 and a Low Voltage Differential Signaling (LVDS) cable to transmit / receive data with each other, or to another type of wired or wireless connection. Can be connected by cable.
디지털 엑스선 감지 및 디스플레이 장치(100, 200)는 종래의 필름엑스선촬영장치나 디지털엑스선촬영장치와 같이 X-선 광원(20)을 갖는 장치에 장착되어 사용되며, 특히, 종래의 필름엑스선촬영장치에 장착되어 사용될 경우에는 필름카세트(11)가 제거된 필름카세트장착부(10)에 장착될 수 있다. 즉, 종래의 필름엑스선촬영장치의 엑스선광원(20) 및 필름카세트장착부(10)를 그대로 사용하므로 디지털 X선 촬영장치를 구입하는 경우와 비교할 때 비용을 매우 줄일 수 있고, 일회용인 엑스선 필름(11a)을 대체하여 지속적으로 엑스선영상을 촬영할 수 있는 효과가 있다. 엑스선 감지 및 디스플레이 장치(100, 200)가 종래의 필름카세트 장착부(10)의 필름카세트(11)를 제거하지 않고, 상기 필름카세트 장착부(10)의 전면에 장착되어 사용될 수 있음은 물론이다.The digital X-ray sensing and display apparatuses 100 and 200 are mounted and used in a device having an X-ray light source 20, such as a conventional film X-ray imaging apparatus or a digital X-ray imaging apparatus, and in particular, mounted in a conventional film X-ray imaging apparatus. When used, the film cassette 11 may be mounted on the removed film cassette mounting portion 10. That is, since the X-ray light source 20 and the film cassette mounting portion 10 of the conventional film X-ray imaging apparatus are used as they are, the cost can be greatly reduced compared to the case of purchasing a digital X-ray imaging apparatus, and the disposable X-ray film 11a is used. ), It can take X-ray images continuously. The X-ray sensing and display apparatuses 100 and 200 may be mounted on the front surface of the film cassette mounting unit 10 without removing the film cassette 11 of the conventional film cassette mounting unit 10.
엑스선 센서(110, 211)는 엑스선 광원(20)에서 조사되고 피사체를 투과한 엑스선을 수광하여 디지털 영상신호를 출력한다. 도시되지 않았으나, 엑스선 센서(110, 211)는 엑스선을 가시광으로 변환하는 신틸레이터 패널(Scintillator panel), 가시광을 수광하여 아날로그 영상신호를 출력하는 광전 패널 및 아날로그 영상신호를 디지털 영상신호로 변환하는 A/D변환기를 포함할 수 있다. 역시 도시하지는 않았지만, 광전 패널은 가시광을 수광하여 전기를 충전하는 픽셀어레이, 픽셀어레이의 전압출력을 제어하는 게이트드라이버, 픽셀어레이에서 출력된 전압을 증폭하고 전압의 크기를 계산하여 아날로그 영상신호를 출력하는 리드아웃 아이씨(Readout IC)를 포함할 수 있다. 또한, 본 발명의 일 실시예에서는 엑스선 센서(110, 211)를 신틸레이터 패널을 이용하여 엑스선을 가시광으로 변환하여 수광하는 간접방식의 엑스선 센서로 상정하였으나, 광전도 물질(a-Se, HgI2등)을 사용하여 엑스선을 직접 전기신호인 아날로그 영상신호로 출력하는 직접방식의 엑스선 센서로서 엑스선 센서(110, 211)를 구현할 수도 있다. 또한, 엑스선 센서(110)는 치과용, 두경부용 또는 이비인후과용 엑스선 센서이며, 각각 파노라마센서, CT센서 또는 세팔로센서일 수 있다.The X-ray sensors 110 and 211 receive X-rays radiated from the X-ray light source 20 and transmitted through the subject to output digital image signals. Although not shown, the X-ray sensors 110 and 211 may include a scintillator panel for converting X-rays into visible light, a photoelectric panel for receiving visible light and outputting analog video signals, and A for converting analog video signals into digital video signals. May include a / D converter. Although not shown, the photoelectric panel outputs an analog video signal by amplifying a voltage output from a pixel array that receives visible light and charges electricity, a gate driver that controls the voltage output of the pixel array, and amplifies the voltage output from the pixel array. The readout IC may include a readout IC. In one embodiment of the present invention it has been assumed in the x-ray sensor of the indirect method for receiving and converting the X-rays into visible rays by the X-ray sensor (110, 211) using a scintillator panel, a photoconductive material (a-Se, HgI 2 The X-ray sensors 110 and 211 may be implemented as direct X-ray sensors that output X-rays as analog image signals, which are direct electrical signals. In addition, the X-ray sensor 110 is an X-ray sensor for dental, head and neck or otorhinolaryngology, and may be a panoramic sensor, a CT sensor or a cephalo sensor, respectively.
디지털 엑스선 감지 및 디스플레이 장치(100, 200)의 제어부(120, 212)는 엑스선 센서(110, 211)의 동작을 제어하며, 엑스선 센서(110, 211)를 초기화하는 트리거신호나, 엑스선 영상 촬영을 개시하기 위한 클럭신호를 생성한다. 더욱 자세하게는, 제어부(120)는 광전 패널의 게이트 드라이버가 픽셀어레이에 충전된 전기를 흐르게하는 클럭 신호를 생성하여 게이트 드라이버로 전송하거나, 게이트 드라이버가 일정한 횟수로 픽셀어레이에 충전된 전기를 방전시켜 픽셀어레이에 충전된 전기충전레벨을 초기화 하는 트리거 신호를 게이트 드라이버로 전송함으로써, 엑스선 센서(110, 212)의 동작을 제어한다. 디지털 엑스선 감지 및 디스플레이 장치(200)의 제어부(212)는 엑스선 센서(211)의 동작을 제어할 뿐만 아니라 디지털 영상신호의 변환 동작을 제어한다. 즉, 제어부(212)는 리드아웃 아이씨를 동작시키는 리셋 신호를 생성하여 리드아웃 아이씨로 전송함으로써 디지털 영상신호의 변화동작을 제어한다.The controllers 120 and 212 of the digital X-ray detection and display apparatuses 100 and 200 control the operations of the X-ray sensors 110 and 211, and perform trigger signals for initializing the X-ray sensors 110 and 211 or X-ray imaging. Generate a clock signal to start. More specifically, the control unit 120 generates a clock signal through which the gate driver of the photovoltaic panel flows the electricity charged in the pixel array, and transmits the generated clock signal to the gate driver, or the gate driver discharges the electricity charged in the pixel array a predetermined number of times. The trigger signal for initializing the electric charge level charged in the pixel array is transmitted to the gate driver, thereby controlling the operations of the X-ray sensors 110 and 212. The controller 212 of the digital X-ray sensing and display apparatus 200 controls not only an operation of the X-ray sensor 211 but also a conversion operation of a digital image signal. That is, the controller 212 controls a change operation of the digital video signal by generating a reset signal for operating the readout IC and transmitting the reset signal to the readout IC.
영상재구성부(130, 232)는 엑스선 센서(110, 211)에서 출력되는 디지털 영상신호를 입력받아 엑스선 영상데이터로 재구성한다. 다시 말해서, 영상재구성부(130, 232)는 디지털 영상신호에 의한 로우영상(Raw image)(I1)을 파노라마 영상, CT영상 또는 세팔로영상으로 재구성하는 것이다. 예를 들면, 영상재구성부(130)는 로우영상(171)을 이루는 수천 개의 프레임 영상들(파노라마 촬영시 약 2700프레임)(데이터용량: 약 5Gbit)을 서로 일정부분 중첩한 후, 프레임 영상들의 중첩되는 부분 중 어느 하나의 영상을 삭제함으로써 하나의 파노라마 영상(데이터용량: 약 3Gbit)으로 재구성한다. 즉, 영상재구성부(130, 232)는 본 발명의 일 실시예에 따른 엑스선 감지 및 디스플레이 장치(100)에 임베디드(Embedded) 방식으로 프로그래밍되어 탑재되므로, 영상재구성을 위한 별도의 서버급 컴퓨터가 필요없다. The image reconstruction units 130 and 232 receive digital image signals output from the X-ray sensors 110 and 211 and reconstruct the X-ray image data. In other words, the image reconstruction units 130 and 232 reconstruct the raw image I1 by the digital image signal into a panoramic image, a CT image or a cephalo image. For example, the image reconstructor 130 superimposes several thousands of frame images (about 2700 frames at the time of panorama shooting) (data capacity: about 5 Gbit) constituting the raw image 171 to each other, and then overlaps the frame images. The image is reconstructed into one panorama image (data capacity: about 3Gbit) by deleting one of the portions. That is, the image reconstruction units 130 and 232 are programmed and mounted in the X-ray detection and display apparatus 100 according to an embodiment of the present invention in an embedded manner, so that a separate server class computer for image reconstruction is not required. .
데이터 저장부(140, 233)은 영상재구성부(130, 232)에서 재구성된 엑스선 영상데이터를 저장한다. 또한, 본 발명의 일 실시예에서 데이터 저장부(140, 233)를 분리가능한 이동식 저장부으로 구비하였으며, 데이터의 이동을 편리하게 하였다. 예를 들면, 이동식 저장부는 USB메모리(Universal Serial Bus Memory)일 수 있다. The data storage units 140 and 233 store X-ray image data reconstructed by the image reconstruction units 130 and 232. In addition, in an embodiment of the present invention, the data storage units 140 and 233 are provided as removable removable storage units, which facilitate the movement of data. For example, the removable storage may be a USB memory (Universal Serial Bus Memory).
디지털 엑스선 감지 및 디스플레이 장치(100)의 중앙처리부(150)는 제어부(120), 영상재구성부(130) 및 데이터저장부(140)의 동작을 제어하고, 디지털 엑스선 감지 및 디스플레이 장치(200)의 중앙처리부(234)는 디스플레이부(231), 영상재구성부(232) 및 데이터저장부(233)의 동작을 제어한다. The central processing unit 150 of the digital X-ray sensing and display apparatus 100 controls the operations of the controller 120, the image reconstructing unit 130, and the data storage 140, and controls the operations of the digital X-ray sensing and display apparatus 200. The central processor 234 controls the operations of the display unit 231, the image reconstruction unit 232, and the data storage unit 233.
디스플레이부(170, 231)는 엑스선 영상데이터를 영상으로 출력해주며, 본 발명의 일 실시예에따라 LCD패널(Liquid Crystal Display panel)로 구현되거나, LED패널(Light Emitting Diode Panel:발광 다이오드 패널), PDP(Plasma Display Panel:플라즈마 디스플레이 패널) 또는 OLED패널(Organic Light Emitting Diodes Panel:유기발광 다이오드 패널)로 구현될 수 있다. 도 1 및 도 2에 보인 디지털 엑스선 감지 및 디스플레이 장치(100)의 디스플레이부(170)는 하우징(160)의 일정부분에 부착될 수 있다. 본 발명의 실시예에 따라, 디스플레이부(170)는 하우징(160)의 후면에 부착되어, 엑스선 센서(110)의 뒷면과 디스플레이부(170)의 뒷면이 서로 마주볼 수 있다. 즉, 전면에는 엑스선 센서(110)가, 후면에는 디스플레이부(170)가 배치될 수 있다. 디스플레이부(170, 231)는 디지털 영상신호에 의한 로우영상(I1) 및 엑스선 영상데이터에 의한 재구성영상(I2) 즉, 파노라마 영상, CT영상 또는 세팔로영상을 동시에 출력한다. 디스플레이부(170, 231)는 터치스크린으로 구현될 수 있으며, 터치스크린 상에는 영상 전송버튼(B1) 및 영상 삭제버튼(B2)이 디스플레이 될 수 있다. 전송버튼(B1)이 눌러질 경우, 엑스선 영상데이터가 데이터저장부(140, 233)로 전송되어 저장되고, 삭제버튼(B2)이 눌러질 경우, 엑스선 영상데이터가 캐쉬영역에서 삭제된다. 또한, 디스플레이부(170, 231)는 출력되는 영상들(I1, I2)을 확대하거나 축소할 수 있는 이미지 줌기능을 구비한다. 즉, 사용자는 상기 재구성영상(I2)의 완성도를 직접 확인하고 재구성된 엑스선 영상데이터를 저장할 수 있다. The display units 170 and 231 output X-ray image data as an image, and may be implemented as an LCD panel (Liquid Crystal Display panel) or an LED panel according to an embodiment of the present invention. , PDP (Plasma Display Panel) or OLED Panel (Organic Light Emitting Diodes Panel). 1 and 2, the display unit 170 of the digital X-ray sensing and display apparatus 100 may be attached to a portion of the housing 160. According to an exemplary embodiment of the present invention, the display unit 170 may be attached to the rear surface of the housing 160 so that the rear surface of the X-ray sensor 110 and the rear surface of the display unit 170 may face each other. That is, the X-ray sensor 110 may be disposed on the front side, and the display unit 170 may be disposed on the rear side. The display units 170 and 231 simultaneously output a low image I1 by a digital image signal and a reconstructed image I2 by X-ray image data, that is, a panoramic image, a CT image, or a cephalo image. The display units 170 and 231 may be implemented as a touch screen, and an image transmission button B1 and an image deletion button B2 may be displayed on the touch screen. When the transmission button B1 is pressed, the X-ray image data is transmitted and stored to the data storage units 140 and 233, and when the delete button B2 is pressed, the X-ray image data is deleted from the cache area. In addition, the display units 170 and 231 have an image zoom function for enlarging or reducing the output images I1 and I2. That is, the user may directly confirm the completeness of the reconstructed image I2 and store the reconstructed X-ray image data.
또한, 도시하지는 않았지만 본 발명의 일 실시예에 따른 디지털 엑스선 감지 및 디스플레이 장치(100)는 엑스선 영상데이터를 인터넷으로 전송할 수 있게 하는 이더넷 네트워킹부 및 외부의 USB메모리가 장착되어 엑스선 영상데이터를 다운로드할 수 있게 하는 USB호스트를 더 포함할 수 있다. In addition, although not shown, the digital X-ray detecting and display apparatus 100 according to an embodiment of the present invention may be equipped with an Ethernet networking unit and an external USB memory to download the X-ray image data. It may further include a USB host to enable.
또한, 도시되지는 않았으나, 본 발명의 일 실시예에 따른 디지털 엑스선 감지 및 디스플레이 장치(100, 200)는 엑스선촬영 횟수를 카운팅하여 저장하는 촬영횟수 카운팅부를 더 포함할 수 있다. 예를 들면, 상기 촬영횟수 카운팅부는 엑스선 센서(110, 211)가 엑스선을 받아들일 경우 엑스선 촬영으로 카운팅하거나, 엑스선 센서(110, 211)을 초기화하기 위해 입력되는 트리거 신호를 이용하여 엑스선 촬영을 카운팅하거나, 엑스선의 선량이 감지될 경우 엑스선 촬영으로 카운팅하거나, 제어부(120, 212)에서 엑스선 센서(110, 211)로 촬영개시신호 또는 촬영을 위한 클럭 발생이 있을 경우 엑스선 촬영으로 카운팅할 수 있다. 즉, 촬영횟수 카운팅부는 본 발명의 디지털 엑스선 감지 및 디스플레이 장치(100)가 임대된 경우에 디지털 엑스선 감지 및 디스플레이 장치(100)의 사용횟수를 기록하여 임대료 과금의 근거로 활용할 수 있게 한다.In addition, although not shown, the digital X-ray sensing and display apparatuses 100 and 200 according to an exemplary embodiment of the present invention may further include a counting counting unit for counting and storing the counting number of X-rays. For example, the counting counting unit counts X-ray imaging when the X-ray sensors 110 and 211 receive X-rays, or counts X-ray imaging using a trigger signal input to initialize the X-ray sensors 110 and 211. Or, if the dose of X-rays is detected, the counting may be counted by X-ray imaging, or the X-ray photographing may be counted by the controller 120 or 212 when the photographing start signal or the clock for photographing is generated by the X-ray sensors 110 and 211. That is, the photographing count counting unit records the number of times of use of the digital X-ray sensing and display apparatus 100 when the digital X-ray sensing and display apparatus 100 of the present invention is rented so that the photographing counting unit may be used as a basis for renting.
도 5는 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치에서 재구성된 구강 파노라마 영상데이터의 제1실시예를 보여주는 도면이다. 이하에서는 도 1 내지 도 4와 실질적으로 동일한 구성요소에 대해서는 설명을 생략하고 동일한 부호를 참조하기로 한다.FIG. 5 is a diagram illustrating a first embodiment of reconstructed oral panoramic image data in a digital X-ray sensor device according to an embodiment of the present invention. Hereinafter, components substantially the same as those of FIGS. 1 to 4 will be omitted and the same reference numerals will be referred.
도 5를 참조하면, 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치의 엑스선 영상데이터는 구강 파노라마 영상데이터(PI)로 생성된다. 더욱 자세하게는, 엑스선 센서(110, 211)에서 출력되는 디지털 영상신호는 복수 개의 디지털 영상신호 즉, 복수의 프 복수의 프레임 영상신호들(f1,f2,...fn)로 이루어지며, 영상재구성부(130, 232)은 프레임 영상신호들(f1,f2,...fn)을 서로 이어붙여 하나의 구강 파노라마 영상데이터(PI)로 재구성한다.Referring to FIG. 5, X-ray image data of a digital X-ray sensor device according to an embodiment of the present invention is generated as oral panorama image data (PI). In more detail, the digital video signal output from the X-ray sensors 110 and 211 is composed of a plurality of digital video signals, that is, a plurality of frame image signals f1, f2,... Fn, and image reconstruction. The units 130 and 232 reconstruct frame image signals f1, f2, ..., fn into one oral panoramic image data PI.
도 6 및 도 7은 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치에서 재구성된 구강 파노라마 영상데이터의 제2실시예를 설명하기 위한 도면이다. 도 6을 참조하면, 엑스선 센서(110, 211)에서 출력되는 디지털 영상신호는 복수 개의 디지털 영상신호 즉, 복수의 개의 프레임 영상신호들(f)로 이루어지며, 영상재구성부(130, 232)는 상기 프레임 영상신호들(f)을 서로 순차로 이어붙이거나 서로 일정부분 중첩하여 복수 개의 이미지 레이어(il-1,il,il+1)들에 대한 파노라마 영상데이터들을 생성한다. 더욱 자세하게는 먼저, 적어도 일정 픽셀(p)만큼 중첩된 기준 이미지 레이어(il)에 대한 파노라마 영상데이터를 생성하고, 다음, 기준 이미지 레이어(il)에 대한 파노라마 영상데이터를 구성하는 프레임 영상신호들(f) 간의 픽셀(p) 중첩정도를 다르게 하거나, 프레임 영상신호들(f)이 중첩하지 않고 서로 맞 이어붙여, 상기 기준 이미지 레이어(il)보다 내측의 이미지 레이어(il-1) 및 외측의 이미지 레이어(il+1)에 대한 파노라마 영상들을 획득함으로써, 복수 개의 이미지 레이어들(il-1,il,il+1) 모두에 대한 파노라마 영상데이터들을 획득한다. 또한, 도 6에서는 하나의 픽셀(p)을 기준으로 더 중첩하거나 덜 중첩하여 중첩정도를 다르게 하는 것을 도시하였으나, 하나의 픽셀(p)의 일부분을 기준으로 더 중첩하거나 덜 중첩할 수도 있다. 또한, 도 6에서는 상기 이미지 레이어들(il-1,il,il+1)이 세 개의 이미지 레이어(il-1,il,il+1)인 것으로 도시하였으나, 영상보간기법에 따라 수십 또는 수백 개의 이미지 레이어들에 대한 파노라마 영상데이터를 획득할 수도 있다.6 and 7 are diagrams for describing a second exemplary embodiment of oral panoramic image data reconstructed in a digital X-ray sensor apparatus according to an exemplary embodiment of the present invention. Referring to FIG. 6, the digital image signal output from the X-ray sensors 110 and 211 is composed of a plurality of digital image signals, that is, a plurality of frame image signals f, and the image reconstruction units 130 and 232 The frame image signals f are sequentially connected to each other or partially overlap each other to generate panoramic image data of the plurality of image layers il-1, il, il + 1. More specifically, first, the panoramic image data for the reference image layer il superimposed by at least a predetermined pixel p is generated, and then the frame image signals constituting the panoramic image data for the reference image layer il ( The overlapping degree of pixels p between f) is different, or the frame image signals f are joined to each other without overlapping, so that the image layer il-1 and the image outside the reference image layer il By obtaining panorama images of the layer il + 1, panorama image data of all of the plurality of image layers il-1, il, il + 1 are obtained. In addition, although FIG. 6 illustrates overlapping or less overlapping with respect to one pixel p, the overlapping degree is different, but more overlapping or less overlapping with respect to a part of one pixel p. In addition, although the image layers il-1, il, il + 1 are illustrated as three image layers il-1, il, il + 1 in FIG. 6, dozens or hundreds of image layers may be provided according to an image interpolation technique. Panoramic image data for image layers may be obtained.
다음, 상기 이미지 레이더들(il-1,il,il+1)에 대한 파노라마 영상데이터들 중 가장 선명한 파노라마 영상데이터를 주파수분석법을 통해 추출하며, 추출된 가장 선명한 파노라마 영상데이터를 상기 구강 파노라마 영상데이터로 생성한다. 주파수분석법은 파노라마 영상데이터를 푸리에 변환하여 영상의 공간 주파수 성분을 분석하는 방법이다.Next, the sharpest panoramic image data among the panoramic image data of the image radars (il-1, il, il + 1) are extracted through frequency analysis, and the extracted sharpest panoramic image data is extracted from the oral panoramic image data. To create. The frequency analysis method is a method of analyzing spatial frequency components of an image by Fourier transforming panoramic image data.
도 7은 주파수분석법을 설명하기 위한 도면으로 엑스선 영상의 공간적인 위치에 따른 대조도인 공간 주파수성분의 분포를 나타내며, 이미지 레이어들(il-1,il,il+1) 중 가장 선명한 이미지 레이어(ilp)에 대한 파노라마 영상데이터는 상기 공간 주파수성분이 특정 고주파수 대역의 주파수가 높은 고주파수 값을 가지므로, 상기 이미지 레이어들(il-1,il,il+1) 중 상기 공간 주파수성분 성분이 가장 높은 이미지 레이어(ilp)를 선택하여 파노라마 영상데이터로 재구성함으로써, 상기 구강 파노라마 영상데이터를 획득할 수 있다.FIG. 7 is a view for explaining a frequency analysis method and shows a distribution of spatial frequency components which are contrasts according to spatial positions of an X-ray image, and the sharpest image layer (il-1, il, il + 1) of the image layers (il-1, il, il + 1). In the panoramic image data for ilp), since the spatial frequency component has a high frequency value having a high frequency in a specific high frequency band, the spatial frequency component of the image layers il-1, il, il + 1 has the highest value. The oral panorama image data may be obtained by selecting an image layer ilp and reconstructing the panorama image data.
도 8은 본 발명의 일 실시예에 따른 디지털 엑스선 센서 장치에서 재구성된 구강 파노라마 영상데이터의 제3실시예를 설명하기 위한 도면이다. 도 8을 참조하면, 엑스선 센서(110, 211)에서 출력되는 디지털 영상신호는 복수 개의 디지털 영상신호 즉, 복수 개의 프레임 영상신호들(f)을 포함하여 이루어지며, 먼저, 상기 영상재구성부(130, 232)는 프레임 영상신호들(f)을 서로 순차로 이어붙이거나 서로 일정부분 중첩하여 복수 개의 이미지 레이어(il-1,il,il+1)들에 대한 파노라마 영상데이터들을 생성한다.8 is a view for explaining a third embodiment of the oral cavity panoramic image data reconstructed in the digital X-ray sensor apparatus according to an embodiment of the present invention. Referring to FIG. 8, the digital image signal output from the X-ray sensors 110 and 211 includes a plurality of digital image signals, that is, a plurality of frame image signals f. First, the image reconstructing unit 130 is performed. , 232 sequentially connects the frame image signals f to each other or partially overlaps each other to generate panorama image data for the plurality of image layers il-1, il, il + 1.
다음, 각 이미지 레이어들(il-1,il,il+1)을 적어도 둘 이상의 부분 파노라마 영상데이터들(a,b,c,d,e)로 나누고, 부분 파노라마 영상데이터들(a,b,c,d,e) 중 가장 선명한 부분 파노라마 영상데이터들(ilp)을 주파수 분석법을 통해 추출하여 서로 이어붙임으로써 상기 구강 파노라마 영상데이터를 생성한다. 또한, 가장 선명한 부분 파노라마 영상데이터들(ilp) 사이에 각각 연결 파노라마 영상데이터(ilc)들을 이용하여 상기 구강 파노라마 영상데이터를 완성할 수 있으며 상기 연결 파노라마 영상데이터(ilc)는 상기 가장 선명한 부분 파노라마 영상데이터들(ilp) 사이를 연결하는 궤적에 대응하는 로그(log)식에 의해 수학적으로 계산되어 생성된다.Next, each image layer (il-1, il, il + 1) is divided into at least two partial panorama image data (a, b, c, d, e), and the partial panorama image data (a, b, The oral panoramic image data is generated by extracting the clearest partial panoramic image data ilp of c, d, and e through the frequency analysis and concatenating them. In addition, the oral panoramic image data may be completed by using the connection panoramic image data ilc between the sharpest partial panoramic image data ilp, and the connection panoramic image data ilc may be the sharpest partial panoramic image. It is mathematically calculated and generated by a log equation corresponding to a trajectory connecting the data ilp.
이상에서 살펴본 바와 같이 본 발명은 바람직한 실시예를 들어 도시하고 설명하였으나, 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변경과 수정이 가능할 것이다.As described above, the present invention has been illustrated and described with reference to preferred embodiments, but is not limited to the above-described embodiments, and is provided to those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.
본 발명에 따른 디지털 엑스선 감지 및 디스플레이 장치는 종래의 엑스선 필름을 대신할 수 있다. The digital X-ray sensing and display device according to the present invention can replace the conventional X-ray film.
또한, 본 발명에 따른 디지털 엑스선 감지 및 디스플레이 장치는 종래의 필름엑스선촬영장치 또는 디지털엑스선촬영장치와 같이 X-선 광원을 구비하는 장치에 채용되어 피사체의 엑스선 영상을 획득할 수 있다.In addition, the digital X-ray sensing and display apparatus according to the present invention may be employed in a device having an X-ray light source, such as a conventional film X-ray imaging apparatus or a digital X-ray imaging apparatus, to obtain an X-ray image of a subject.
또한, 본 발명에 따른 디지털 엑스선 감지 및 디스플레이 장치는 임베디드 방식으로 별도의 컴퓨터장치 없이 디지털 영상신호를 엑스선 영상으로 재구성할 수 있다.In addition, the digital X-ray sensing and display apparatus according to the present invention can be reconstructed into an X-ray image of a digital image signal without an additional computer device in an embedded manner.

Claims (19)

  1. 엑스선 광원을 구비하는 장치에 장착되는 디지털 엑스선 감지 및 디스플레이 장치에 있어서, A digital X-ray sensing and display device mounted on a device having an X-ray light source,
    엑스선을 수광하여 디지털 영상신호를 출력하는 엑스선 센서;An X-ray sensor that receives X-rays and outputs a digital video signal;
    상기 엑스선 센서의 동작을 제어하는 제어부;A control unit controlling an operation of the X-ray sensor;
    상기 디지털 영상신호를 엑스선 영상데이터로 재구성하는 영상재구성부;An image reconstructing unit configured to reconstruct the digital image signal into X-ray image data;
    상기 엑스선 영상데이터를 저장하는 데이터저장부; A data storage unit for storing the X-ray image data;
    상기 영상재구성부 및 상기 데이터저장부의 동작을 제어하는 중앙처리부; 및A central processing unit for controlling operations of the image reconstructing unit and the data storage unit; And
    상기 엑스선 영상데이터를 영상으로 출력하는 디스플레이부를 포함하는 디지털 엑스선 감지 및 디스플레이 장치.And a display unit for outputting the X-ray image data as an image.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 엑스선 센서를 전면에 구비하고, 상기 제어부, 상기 영상재구성부, 상기 데이터저장부 및 상기 중앙처리부을 내부에 구비하는 하우징을 더 포함하는 디지털 엑스선 감지 및 디스플레이 장치.And a housing including the control unit, the image reconstructing unit, the data storage unit, and the central processing unit therein.
  3. 제 2 항에 있어서,The method of claim 2,
    상기 엑스선 광원을 구비하는 장치는 필름엑스선촬영장치 및 디지털엑스선촬영장치를 포함하는 디지털 엑스선 감지 및 디스플레이 장치.The device having the X-ray light source includes a film X-ray photographing apparatus and a digital X-ray photographing apparatus.
  4. 제 3 항에 있어서,The method of claim 3, wherein
    상기 하우징은 상기 필름엑스선촬영장치의 필름카세트 장착부에 필름카세트를 제거하고 장착되는 디지털 엑스선 감지 및 디스플레이 장치.The housing is a digital X-ray sensing and display device which is mounted to remove the film cassette in the film cassette mounting portion of the film X-ray photographing apparatus.
  5. 제 3 항에 있어서,The method of claim 3, wherein
    상기 하우징은 상기 필름엑스선촬영장치의 필름카세트 장착부의 필름카세트를 제거하지 않고, 상기 필름카세트 장착부의 전면에 장착되는 디지털 엑스선 감지 및 디스플레이 장치.And the housing is mounted on the front surface of the film cassette mounting portion without removing the film cassette mounting portion of the film x-ray photographing apparatus.
  6. 제 1 항 내지 제 5 항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 5,
    상기 엑스선 센서는 파노라마센서, CT센서 또는 세팔로센서인 디지털 엑스선 감지 및 디스플레이 장치.The X-ray sensor is a digital X-ray detection and display device that is a panoramic sensor, CT sensor or cephalo sensor.
  7. 제 2 항에 있어서,The method of claim 2,
    상기 디스플레이부는 상기 하우징 내에 구비되어 상기 엑스선 센서의 뒷면과 상기 디스플레이부의 뒷면이 서로 마주보는 디지털 엑스선 감지 및 디스플레이 장치.The display unit is a digital X-ray sensing and display device provided in the housing so that the back of the X-ray sensor and the back of the display unit facing each other.
  8. 제 7 항에 있어서,The method of claim 7, wherein
    상기 디지털 영상신호는 복수 개의 디지털 영상신호이며, 상기 영상재구성부는 상기 디지털 영상신호들을 순차로 이어붙여 파노라마 영상데이터를 생성하는 디지털 엑스선 감지 및 디스플레이 장치.The digital image signal is a plurality of digital image signals, the image reconstruction unit digital x-ray sensing and display device for generating the panorama image data by sequentially connecting the digital image signals.
  9. 제 8 항에 있어서,The method of claim 8,
    상기 디지털 영상신호는 복수 개의 디지털 영상신호이며, 상기 영상재구성부는 상기 디지털 영상신호들을 서로 순차로 이어붙이거나 서로 일정부분 중첩하여 복수 개의 이미지 레이어에 대한 1차 파노라마 영상데이터들을 생성하고, 상기 1차 파노라마 영상데이터들 중 가장 선명한 1차 파노라마 영상데이터를 상기 파노라마 영상데이터로 생성하는 디지털 엑스선 감지 및 디스플레이 장치.The digital video signal is a plurality of digital video signals, and the video reconstruction unit sequentially connects the digital video signals to each other or partially overlaps each other to generate primary panoramic image data for a plurality of image layers. Digital X-ray detection and display device for generating the most clear first panorama image data of the panorama image data to the panorama image data.
  10. 제 8 항에 있어서,The method of claim 8,
    상기 디지털 영상신호는 복수 개의 디지털 영상신호이며, 상기 영상재구성부는 상기 디지털 영상신호들을 서로 순차로 이어붙이거나 서로 일정부분 중첩하여 복수 개의 이미지 레이어에 대한 1차 파노라마 영상데이터들을 생성하고, 상기 각 1차 파노라마 영상데이터들 내에서 가장 선명한 부분 파노라마 영상데이터들을 추출하여 서로 이어붙임으로써 상기 파노라마 영상데이터를 생성하는 디지털 엑스선 감지 및 디스플레이 장치.The digital video signal is a plurality of digital video signals, and the video reconstruction unit sequentially connects the digital video signals to each other or partially overlaps each other to generate primary panoramic image data for a plurality of image layers. A digital X-ray sensing and display device for generating the panoramic image data by extracting the most sharp partial panoramic image data in the secondary panorama image data and concatenating them.
  11. 엑스선 광원을 구비하는 장치에 장착되는 디지털 엑스선 감지 및 디스플레이 장치에 있어서, A digital X-ray sensing and display device mounted on a device having an X-ray light source,
    엑스선을 수광하여 디지털 영상신호를 출력하는 엑스선 센서와 상기 엑스선 센서의 동작을 제어하는 제어부를 포함하는 엑스선 모듈; 및An X-ray module including an X-ray sensor for receiving X-rays and outputting a digital image signal and a control unit for controlling the operation of the X-ray sensor; And
    상기 디지털 영상신호를 엑스선 영상데이터로 재구성하는 영상재구성부, 상기 엑스선 영상데이터를 저장하는 데이터저장부, 상기 영상재구성부 및 상기 데이터저장부의 동작을 제어하는 중앙처리부 및 상기 엑스선 영상데이터를 영상으로 출력하는 디스플레이부를 포함하는 디스플레이 모듈을 포함하는 디지털 엑스선 감지 및 디스플레이 장치.An image reconstruction unit for reconstructing the digital image signal into X-ray image data, a data storage unit for storing the X-ray image data, a central processing unit for controlling operations of the image reconstruction unit, and the data storage unit and outputting the X-ray image data as an image Digital X-ray sensing and display device comprising a display module including a display unit.
  12. 제 11 항에 있어서,The method of claim 11,
    상기 엑스선 센서 모듈은 필름엑스선촬영장치나 디지털엑스선촬영장치에 장착되어 사용되는, 디지털 엑스선 감지 및 디스플레이 장치.The X-ray sensor module is mounted on a film X-ray photographing apparatus or a digital X-ray photographing apparatus, the digital X-ray sensing and display device.
  13. 제 12 항에 있어서,The method of claim 12,
    상기 엑스선 센서 모듈은 상기 필름엑스선촬영장치의 필름카세트 장착부에 필름카세트를 제거하고 장착되는, 디지털 엑스선 감지 및 디스플레이 장치.The X-ray sensor module is mounted to remove the film cassette in the film cassette mounting portion of the film X-ray imaging apparatus, digital x-ray sensing and display device.
  14. 제 12 항에 있어서,The method of claim 12,
    상기 엑스선 센서 모듈은 상기 필름엑스선촬영장치의 필름카세트 장착부의 필름카세트를 제거하지 않고, 상기 필름카세트 장착부의 전면에 장착되는, 디지털 엑스선 감지 및 디스플레이 장치.The X-ray sensor module is mounted on the front surface of the film cassette mounting portion, without removing the film cassette mounting portion of the film X-ray imaging apparatus, digital x-ray sensing and display device.
  15. 제 11 항 내지 제 14 항 중 어느 한 항에 있어서,The method according to any one of claims 11 to 14,
    상기 엑스선 센서는 파노라마센서, CT센서 또는 세팔로센서인 것을 특징으로 하는 디지털 엑스선 감지 및 디스플레이 장치.The X-ray sensor is a digital X-ray detection and display device, characterized in that the panoramic sensor, CT sensor or cephalo sensor.
  16. 제 11 항 내지 제 14 항 중 어느 한 항에 있어서,The method according to any one of claims 11 to 14,
    상기 엑스선 감지 및 디스플레이 장치는 하우징을 더 포함하고, 상기 엑스선 센서 및 상기 제어부는 각각 상기 하우징의 전면 및 내부에 구비되는, 디지털 엑스선 감지 및 디스플레이 장치.The X-ray sensing and display device further includes a housing, wherein the X-ray sensor and the control unit are provided on the front and the inside of the housing, respectively.
  17. 제 16 항에 있어서,The method of claim 16,
    상기 디지털 영상신호는 복수 개의 디지털 영상신호이며, 상기 영상재구성부는 상기 디지털 영상신호들을 순차로 이어붙여 파노라마 영상데이터를 생성하는, 디지털 엑스선 감지 및 디스플레이 장치.The digital image signal is a plurality of digital image signals, the image reconstructing unit to sequentially connect the digital image signals to generate panoramic image data, digital x-ray sensing and display device.
  18. 제 17 항에 있어서,The method of claim 17,
    상기 디지털 영상신호는 복수 개의 디지털 영상신호이며, 상기 영상재구성부는 상기 디지털 영상신호들을 서로 순차로 이어붙이거나 서로 일정부분 중첩하여 복수 개의 이미지 레이어에 대한 1차 파노라마 영상데이터들을 생성하고, 상기 1차 파노라마 영상데이터들 중 가장 선명한 파노라마 영상데이터를 상기 파노라마 영상데이터로 생성하는, 디지털 엑스선 감지 및 디스플레이 장치.The digital video signal is a plurality of digital video signals, and the video reconstruction unit sequentially connects the digital video signals to each other or partially overlaps each other to generate primary panoramic image data for a plurality of image layers. A digital X-ray sensing and display apparatus for generating the panorama image data of the panorama image data of the sharpest panoramic image data.
  19. 제 17 항에 있어서,The method of claim 17,
    상기 디지털 영상신호는 복수 개의 디지털 영상신호이며, 상기 영상재구성부는 상기 디지털 영상신호들을 서로 순차로 이어붙이거나 서로 일정부분 중첩하여 복수 개의 이미지 레이어에 대한 1차 파노라마 영상데이터들을 생성하고, 상기 각 1차 파노라마 영상데이터들 내에서 가장 선명한 부분 파노라마 영상데이터들을 추출하여 서로 이어붙임으로써 상기 파노라마 영상데이터를 생성하는, 디지털 엑스선 감지 및 디스플레이 장치.The digital video signal is a plurality of digital video signals, and the video reconstruction unit sequentially connects the digital video signals to each other or partially overlaps each other to generate primary panoramic image data for a plurality of image layers, and each of the 1s. And extracting the sharpest partial panoramic image data in the differential panoramic image data and concatenating them to each other to generate the panoramic image data.
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